Insights into Automatic Weather Monitoring Station

Weather variables such as wind speed and direction, air temperature, humidity and rainfall are important factors in determining the course of a wide range of events. For example, agriculture has always been heavily dependent on the weather and weather forecasts, both for its control on the quality and quantity of a harvest and its effect on the farmer’s ability to work the land or to graze his stock.

Water resources generally depend critically not just upon rainfall, but also other weather phenomenon that together drive plant growth, photosynthesis and evaporation. Just as pollen and seed dispersal in the atmosphere are driven almost entirely by the weather, so too is the direction and distance of travel of atmospheric pollution.

Weather monitoring is also important not just in defining present climate, but also for detecting climate change and providing the data to input into models which enable us to predict future changes in our environment.

Because of the wide variety of uses for the information, there are a large number of environmental variables which are of interest to different groups of people. These include solar radiation, wind speed, wind direction, barometric pressure, air temperature, humidity and net radiation.

The demand for these data, usually on an hourly or more frequent timescale, has increasingly been met by the development and widespread deployment of automatic weather stations (AWS’s) over the past 30 years or so.

Automatic Weather Station

EE-WMS-01, the automatic weather station developed by India-based Engineering and Environmental Solutions is a highly sophisticated monitoring & logging of intrinsic weather conditions like temperature, barometric pressure, wind direction, wind speed, wind chill and other optional parameters according to your requirements.

Automatic Weather Monitoring Station developed by Engineering and Environmental Solutions

Application areas include agriculture, hydrology, ecology and meteorology. For any sort of customized application, Engineering and Environmental Solutions can give assistance to select the best blend of sensors, data logger and accessories accordingly.

  • Field proven in severe weather conditions.
  • Unattended weather recording at remote and exposed sites.
  • Wide choice of sensors and accessories.
  • GSM Modem communication.

Flexibility and Customization

The DL-W’s analog inputs can be fully customized. Each channel can have its own input type and recording parameters. Software gives the user control over reading frequency, thresholds and units, and provides recording options for average, min and max, plus specialized wind options ? including wind rose, gusts and wind averaging Users can add their own custom sensor types to the sensor library, exploiting the DL-W’s detailed configuration options.

The DL-W provides 4 input ranges down to microvolt resolution with adaptive auto?ranging, excellent analog accuracy, and configurable sensor excitation enabling it to support nearly all analog sensors. Calculations based on the measurements from several input channels can be recorded and displayed as additional virtual channels (calculated measurements).

For more information and business enquiries please visit www.enggenv.com or contact Mohammad Hamza on +91-9540990415 or email on enggenvsolution@gmail.com or salman@bioenergyconsult.com

Waste Management and Sustainability

Waste management is one of the core themes of sustainability, but achieving sustainable waste management is a challenging and complex task. Despite the fact that an increasing amount of waste has been reused and recycled, landfills still play an important role in the management of wastes. However, waste degradation in landfill produce leachate and harmful gasses viz. carbon dioxide, methane which are considered as greenhouse gases. It has been studied that leachate contribute to 20% emission of greenhouse gases. This can largely risk human health as well as threat to environment. Furthermore, it contains low concentration of gases with heavy aromatic rings, most of them are toxic in nature.

The increasing cost of waste disposal is a cause of major concern in developing nations

Movements of leachate create problem as aquifers need more time for rehabilitation. Leachate can migrate to groundwater or surface water and have potential threat to drinking water. Constructing landfills have adverse effects on aquaculture and habitats by diffusing leachate into surface/groundwater with limited on-site recycling activities. Various studies also claim that residential areas close to landfill areas have low housing values because people don’t prefer to live close to the area enriched with flies, mosquitoes, bacteria and bad odours.

The lower calorific value of wastes lowers the significance of waste-to-energy technologies, such as incineration/gasification, and make waste-to-energy less viable as solution for waste management solution. The low calorific value is an important outcome of waste collection process.

Scavengers often collect in a mixed state with all type of wastes, which include reusable materials, plastic, glass bottles etc. which reduces the calorific value and combustibility of waste. Waste is usually sorted out manually and unfortunately it becomes very difficult to regulate and implement an efficient method. This kind of waste recovery methods is very common in Asian countries e.g. India, Indonesia etc. using improper waste management technique can cause contaminated soil, water and environment.

Water is most easy to contaminate as it dissolves chemicals easily, causing harm to all living organisms including humans. Animal and marine life is most effected with water contamination. It also restricts our use of water for drinking and cooking purposes without cleaning system. The environment is highly harmed because of improper waste management.

Greenhouse gases are generated from decomposition of waste, these gasses are major cause of global warming affecting air precipitation, causing acid rain to severe hailstorms. Moreover humans who live near to garbage dumping area are found to be most significant to risk of health diseases, skin problems, cancer etc.

Olusosun is the largest dumpsite in Nigeria

With proper awareness and teaching methods of efficient waste management we can achieve sustainable solution to waste management. It has been forecasted by Environmental Sanitary Protection Plan that, by 2020 Kamikatsu a city in Japan is going to be 100% free from waste. Although the target of reaching the 100% waste is going to be achieved but the standby waste issue is going to be major hurdle as Kamikatsu have only 34% of land space available.

The lack of availability of standby space for waste is going to be major problem in future because of shortage of space, degraded quality of waste with lower calorific value and formation of leachate. And unfortunately, this issue is not going to be solved very soon.

Biogas in Agriculture Sector in India: Key Challenges

Although the conversion of agriculture waste – cattle dung and crop residues –  to biogas and digested slurry is an established and well-proven technology, it has been under-used, probably because until recently, firewood was easily available and chemical fertilizer was relatively affordable to most of the farmers in India.

The National Biogas and Manure Management Programme (NBMMP) was put in place to lower the environmental degradation and prevent greenhouse gas emissions, like carbon dioxide and methane, into the atmosphere. However, this objective of the program is less likely to motivate the farmers and their families to install biogas plants.

This program rolled out by Ministry of Non-Conventional Energy Sources (now Ministry of New and Renewable Energy), New Delhi, with heavy subsidies for family-type biogas plants to increase adoption, was successful with lakhs of biogas plants being installed across the country till now.

It was realised that due to poor dissemination of information and unsatisfactory communication about the plant operation & application of the digested biogas slurry, and unable to perceive the return in terms of value resulted in discontinuation of lakhs of biogas plants across the country.

The entire biogas technology marketing efforts failed to highlight major advantage – an increased revenue from agriculture with the use of high quality and a low-cost homegrown digested biogas slurry as fertiliser. Another advantage was to help farmers’ understand that their land quality and output per acre will increase over the years by the use of digested biogas slurry which has been degraded from the rampant use of chemical fertiliser and pesticides.

Challenges to be addressed

The farmer’s communities today are required to made to understand that their revenue from agriculture is decreasing year on year due to increasing deforestation, degradation of land quality, rampant use of chemical fertiliser and pesticides, lack of farm cattle, injudicious use of water for irrigation, and use heavy vehicles for ploughing.

These ill-advised decisions have made the farmers poorer, impacted the health of their families and the rural environment of villages. The years ahead are crucial if this trend is not reversed.

Unending benefits of biogas technology

Most of the rural and semi-urban areas have a poor perception of the Anaerobic Digestion (or biogas or biomethanation) technology. This technology offers benefits to all spheres of society but have a particular emphasis on the needs of the farmers in rural areas.

Farmers with dairy animals generally have free access to animal waste (dung), which provide input feed for the biogas digesters. Normally, these farmers stock-pile the dung obtained from their cattle as a plant fertilizer, but this has lower nitrogen content than the digested biogas slurry created by the biogas digestion process, which is odorless and makes a better fertilizer to substitute chemical fertilizers. They can use the gas for cooking or heating, for running power generators. The biogas technology helps farmers reduce their burden to buy LPG and harmful chemical fertilizers and pesticides.

In short, biogas technology is an integrated solution for sustainable agriculture, improving health and lowering environment degradation.

The promise of biogas technology

Biogas technology can help in the following manner:

  • Enhance bio-security for dairy animals – being fully fermented, bio-slurry is odorless and does not attract flies, repels termites and pests that are attracted to raw dung.
  • Provides high quality and low-cost homegrown fertiliser for sustainable agriculture.
  • Reduce energy poverty and ensure energy security.
  • Digested biogas slurry is an excellent soil conditioner with humic acid.
  • Save time for women for education and livelihood activities.
  • Increase forest cover as less firewood would be needed on a daily basis.
  • Reduce weed growth

Importance of Government Efforts

The agriculture sector is playing a major role in India economy and it comprises a huge vote bank. Our government has launched various initiatives like GOBAR-DHAN (Galvanizing Organic Bio-Agro Resources Dhan), Sustainable Alternative towards Affordable Transportation (SATAT), and New National Biogas and Organic Manure Programme (NNBOMP) in attempt to revive interest in biogas technology for farmers and entrepreneurs.

rice-straw-biogas

Agricultural residues, such as rice straw, are an important carbon source for anaerobic digestion

These initiatives are aimed at developmental efforts that would benefit the farmers, vehicle-users, and entrepreneurs. These initiatives also hold a great promise for efficient solid waste management and tackling problems of indoor air pollution caused by use of firewood, deforestation and methane gas release in the atmosphere due to open piling of cattle dung.

These initiatives aren’t marketing the value which solves a major challenge – degradation of agriculture land for farming in rural India. The initiative and efforts are majorly focused on waste management, environment and towards behavioral change. These changes are of global importance and can be managed effortlessly by generating tangible results for farmers.

India has an aspiring young workforce which is moving to urban settlements in hope for better opportunities, therefore, productivity and revenue from agriculture needs to grow. The biogas technology can restore agriculture productivity and strengthen revenue to make it attractive.

Note: This article was first published by author on LinkedIn.com. The link to this article – https://www.linkedin.com/pulse/bio-gas-misunderstood-agri-technology-zahir-kapasi/

Bioethanol: Challenges in India

bioethanol-indiaGlobal demand for fuel efficiency, environmental quality and energy security have elicited global attention towards liquid biofuels, such as bioethanol and biodiesel. Around the world, governments have introduced various policy measurements, mandatory fuel blending programmes, incentives for flex-fuel vehicles and agricultural subsidies for the farmers. In India, the government launched Ethanol Blended Petrol (EBP) programme in January 2013 for 5% ethanol blended petrol. The policy had significant focus on India’s opportunity to agricultural and industrial sectors with motive of boosting biofuel (bioethanol and biodiesel) usage and reducing the existing dependency on fossil fuel.

The Government of India initiated significant investments in improving storage and blending infrastructure. The National Policy on Biofuels has set a target of 20% blending of biofuel by 2017. However, India has managed to achieve only 5% by September 2016 due to certain technical, market and regulatory hurdles.

In India, sugarcane molasses is the major resource for bioethanol production and inconsistency of raw material supply holds the major liability for sluggish response to blending targets.  Technically speaking, blend wall and transportation-storage are the major challenges towards the biofuel targets. Blending wall is the maximum percent of ethanol that can be blended to fuel without decreasing the fuel efficiency.

Various vehicles are adaptable to various blending ratio based on the flexibility of engines. The technology for the engine modification for flex fuel is not new but making the engines available in India along with the supply chain and calibrating the engine for Indian conditions is the halting phase. The commonly used motor vehicles in the country are not effectual with flex fuel.

Sugarcane molasses is the most common feedstock for bioethanol production in India

Sugarcane molasses is the most common feedstock for bioethanol production in India

Ethanol being a highly flammable liquid marks obligatory safety and risk assessment measures during all phases of production, storage and transportation. The non-uniform distribution of raw material throughout the country, demands a compulsory transportation and storage, especially inter-state movement, encountering diverse climatic and topographic conditions.

Major ethanol consumers in India are potable liquor sector (45%), alcohol based chemical industry (40%), the rest for blending and other purposes. The yearly profit elevation in major sectors is a dare to an economical ethanol supply for Ethanol Blending Programme. Drastic fluctuation in pricing of sugar cane farming and sugar milling resulted to huge debt to farmers by mill owners. Gradually the farmers shifted from sugarcane cultivation other crops.

Regulatory and policy approaches on excise duty on storage and transportation of ethanol and pricing strategy of ethanol compared to crude oil are to be revised and implemented effectively. Diversifying the feedstocks (especially use of lignocellulosic biomass) and advanced technology for domestic ethanol production in blending sectors are to be fetched out from research laboratories to commercial scale. Above all the knowledge of economic and environmental benefits of biofuel like reduction in pollutants and import bills and more R&D into drop-in biofuels, need to be amplified for the common man.

Is Green Car Fuel A Reality?

drop-in-biofuelsVehicles remain a huge global pollutant, pumping out 28.85Tg of CO2 in Maharashtra alone, according to a study by the Indian Institute for Science in Bangalore. However, vehicles cannot be discarded, as they form the lifeblood of the country’s towns and cities. Between electric vehicles and hybrids, work is being done to help rectify the situation by making use of green car fuel and technological advancements.

Emissions continue to be a huge issue, and there are two main options for helping to rectify that. The first is electric, which is seeing widespread adoption; and the second, biomass fuel, for more traditional vehicles. Between the two, excellent progress is being made, but there’s much more to be done.

How electric is helping

Electric cars are favoured heavily by the national authorities. A recent Times of India report outlined how the government is aiming for an all-electric vehicle fleet by 2030 and is pushing this through with up to US$16m of electric vehicle grants this year. Green vehicles are obviously a great choice, improving in-city noise and air pollution whilst providing better vehicular safety to boot; a study by the USA’s MIT suggested that electric vehicles are all-around safer than combustion.

However, where EVs fall down to some extent is through the energy they use. As they are charged from the electricity grid, this means that the electricity is largely derived from fossil fuels – official statistics show that India is 44% powered by coal. Ultimately, however, this does mean that emissions are reduced. Fuel is only burned at one source, and oil refining isn’t done at all, which is another source of pollutants. However, as time goes on and the government’s energy policy changes, EVs will continue to be a great option.

The role of biofuels

Biofuels are seeing a huge growth in use – BP has reported that globally, ethanol production grew 3% in 2017. Biofuel is commonly a more favoured option by the big energy companies given the infrastructure often available already to them. While biofuel has been slow on the uptake in India, despite the massive potential available for production, there are now signs this is turning around with the construction of two US$790m biofuel facilities.

Biofuels are increasingly being used to power vehicles around the world

The big benefit of biofuel is that it will have a positive impact on combustion and electric vehicles. The Indian government has stated they intend to use biofuel alongside coal production, with as much as 10% of energy being created using biofuel. Therefore, despite not being emission-free, biofuel will provide a genuine green energy option to both types of eco-friendly vehicle.

Green car fuel is not entirely clean. The energy has to come from somewhere, and in India, this is usually from coal, gas, and oil. However, the increase in biofuel means that this energy will inevitably get cleaner, making green car fuel absolutely a reality.

The Global Green Economy Index 2016 – Key Findings

green-economyThe 5th edition of the Global Green Economy Index (GGEI) is a data-driven analysis of how 80 countries perform in the global green economy, as well as how expert practitioners rank this performance. Since its launch in 2010, the GGEI has signaled which countries are making progress towards greener economies, and which ones are not. The comparison of national green performance and perceptions of it revealed through the GGEI framework is more important than ever today.

Top Performers

Sweden is again the top performing country in the 2016 GGEI, followed by the other “Nordics” and Switzerland, Germany, and Austria. Amidst these strong results, the GGEI identified areas where these countries can improve their green performance further. These opportunities – focused around innovation, green branding and carbon efficiency – could propel their national green performance forward even more in the future.

Developing countries in Africa and Latin America–including Ethiopia, Zambia, Brazil, and Costa Rica– also perform well in this new GGEI edition, ranking in the top fifteen for performance. While Brazil and Costa Rica receive similarly strong results on our perception survey, Ethiopia and Zambia do not, suggesting a need for better green branding and communications in these two African countries.

Like in 2014, Copenhagen is the top green city, followed by Stockholm, Vancouver, Oslo and Singapore. This new GGEI only collected perception values for green cities as lack of data availability continues to impede our efforts to develop a comprehensive green city performance index. Given the significant role of cities in the global green economy, city-level data development is an urgent priority.

Laggards

No country in Asia ranks well for performance on this new GGEI, with the exception of Cambodia, which was the most improved country as compared to the last edition, rising 22 spots to 20th overall. China, India, Indonesia, Japan and South Korea do better on the perception side of the GGEI, but continue to register concerning performance results.

While many European Union (EU) members perform near the top of this GGEI edition, others including the Czech Republic, Estonia, Poland, Romania and Slovakia rank near the bottom. These results are worrisome and suggest uneven national green performance across the EU.

Many of the countries with high annual GDP growth today rank poorly on the GGEI, further highlighting the limits to GDP as a growth indicator. These countries are mostly in Asia (Malaysia, Thailand, Philippines) and Africa (Nigeria, Tanzania).

The top green economy performers worldwide

The top green economy performers worldwide

Countries with a high reliance on fossil fuel extraction and export generally perform poorly on the GGEI, with a few exceptions. Kuwait, Qatar, Saudi Arabia and Russia all perform poorly while Norway and Canada do much better.

Continuing Trends

Rapidly growing economies, China and India continue to show performance weakness on the GGEI Markets & Investment dimension. Given the large investment required to achieve their climate targets, green investment promotion, cleantech innovation, and corporate sustainability should be developed further.

The United States ranks near the top of the GGEI perception survey and it is widely viewed as a vital market for green investment and innovation, yet overall the U.S. continues to have mediocre performance results, ranking 30th of the 80 countries covered. However, the GGEI found that U.S. company-level initiatives to green supply chains and reduce carbon footprints are accelerating.

Despite having a new prime minister, Australia continues to register a poor result on this new GGEI, ranking 55th of the 80 countries covered for performance. While green markets there are showing some strength, the overall carbon intensity of the Australian economy remains extremely high.

Hosting the annual Conference of Parties (COP) can positively impact the host country’s green brand. Yet this short-term image boost does not always translate to improved green performance in the longer-term, as demonstrated by the low GGEI performance results for Poland (COP19), Qatar (COP18) and South Africa (COP17).

The United Kingdom’s GGEI performance continues to lag behind its EU peers, ranking 25th of the 80 countries covered. While the UK does very well on both the perception and performance side of the Markets & Investment dimension, inconsistent policies supporting renewable energy and green growth continue to hurt the UK on other parts of the GGEI.

Note: The full report can be accessed here

Clean Energy Investment Forecast for 2016

renewables-investment-trendsGlobal interest in clean energy technologies reached new heights last year and 2016 promises to be another record-breaker. The year 2015 witnessed installation of more than 121 GW of renewable power plants, a remarkable increase of 30% when compared to 2014. With oil and gas prices tumbling out to unprecedented levels, 2016 should be a landmark year for all clean energy technologies. As per industry trends, solar power is expected to be the fastest-growing renewable power generation technology in 2016, closely followed by wind energy. Among investment hotspots, Asia, Africa and the Middle East will be closely watched this year.

Investment Forecast for 2016

Clean energy is rapidly becoming a part of mainstream investment portfolios all over the world. In 2016, a greater attention will be focused on renewable energy, mainly on account of the Paris Framework and attractive tax credits for clean energy investments in several countries, especially USA.

Infact, the increasing viability of clean energy is emerging as a game-changer for large-scale investors. The falling prices of renewable power (almost 10% per year for solar), coupled with slump in crude oil prices, is pulling global investors away from fossil fuel industry. At the 2016 UN Investor Summit on Climate Risk, former US vice president Al Gore said, “If this curve continues, then its price is going to fall “significantly below the price of electricity from burning any kind of fossil fuel in a few short years”.

There has been an astonishing growth in renewable generation in recent years. “A dozen years ago, the best predictors in the world told us that the solar energy market would grow by 2010 at the incredible rate of 1 GW per year,” said Gore. “By the time 2010 came around, they exceeded that by 17 times over. Last year, it was exceeded by 58 times over. This year, it’s on track to be exceeded by 68 times over. That’s an exponential curve.”

China will continue to dominate solar as well as wind energy sectors

China will continue to dominate solar as well as wind energy sectors

As per industry forecasts, China will continue its dominance of world PV market, followed closely by the US and Japan. Infact, USA is anticipated to overtake Japan as the second largest solar market this year. India, which is developing a highly ambitious solar program, will be a dark horse for cleantech investors. The top solar companies to watch include First Solar, Suntech, Canadian Solar, Trina Solar, Yingli Solar, Sharp Solar and Jinko Solar.

Morocco has swiftly become a role model for the entire MENA. The government’s target of 2GW of solar and 2GW of wind power by 2020 is progressing smoothly. As for solar, the 160MW Noor-1 CSP is already commissioned while Noor-2 and Noor-3 are expected to add a combined 350MW in 2017.

China will continue to lead the global wind energy market in 2016, and is on course to achieve its target of 200 GW of installed wind capacity by 2020. Other countries of interest in the wind sector will be Canada, Mexico, Brazil and South Africa. The major wind turbine manufacturers to watch are Siemens, Vestas, Goldwind, Gamesa and GE.

Conclusion

To sum up, the rapid growth of global renewable energy sector in the past few years is the strongest signal yet for investors and corporations to take the plunge towards green energy and low-carbon growth. As the UN chief Ban Ki-moon famously said, “It marks the beginning of the end of growth built solely on fossil fuel consumption. The once unthinkable has now become unstoppable.”

Waste-to-Energy in India: An Interview with Salman Zafar

waste-mountainIndia’s waste-to-energy sector, which kicked off in 1987, is still searching for a successful role model, even after tens of millions of dollars of investment. In recent years, many ambitious waste-to-energy projects have been established or are being planned in different parts of the country, and it is hoped that things will brighten up in the coming years. Salman Zafar, CEO of BioEnergy Consult, talks to Power Today magazine on India’s tryst with waste-to-energy and highlights major challenges and obstacles in making waste-to-energy a success story in India.

Power Today: What are the challenges that the Waste to Energy sector faces in the current scenario where there is a rejuvenated interest in clean energy? Do you think the buzz around solar and wind power has relegated the Waste to Energy sector to the back benches?

Salman Zafar: India’s experience with waste-to-energy has been lackluster until now. The progress of waste-to-energy sector in India is hampered by multiples issues including

  1. poor quality of municipal waste,
  2. high capital and O&M costs of waste-to-energy systems,
  3. lack of indigenous technology,
  4. lack of successful projects and failure of several ambitious projects,
  5. lack of coordination between municipalities, state and central governments,
  6. heavy reliance on government subsidies,
  7. difficulties in obtaining long-term Power Purchase Agreements (PPAs) with state electricity boards (SEBs)
  8. lukewarm response of banks and financial institutions and (9) weak supply chain.

Waste-to-energy is different from solar (or wind) as it essentially aims to reduce the colossal amount of solid wastes accumulating in cities and towns all over India. In addition to managing wastes, waste-to-energy has the added advantage of producing power which can be used to meet rapidly increasing energy requirements of urban India. In my opinion, waste-to-energy sector has attracted renewed interest in the last couple of years due to Swachch Bharat Mission, though government’s heavy focus on solar power has impacted the development of waste-to-energy as well as biomass energy sectors.

Power Today: India has a Waste to Energy potential of 17,000 MW, of which only around 1,365 MW has been realised so far. How much growth do you expect in the sector?

Salman Zafar: As per Energy Statistics 2015 (refer to http://mospi.nic.in/Mospi_New/upload/Energy_stats_2015_26mar15.pdf), waste-to-energy potential in India is estimated to be 2,556 MW, of which approximately 150 MW (around 6%) has been harnessed till March 2016.

The progress of waste-to-energy sector in India is dependent on resolution of MSW supply chain issues, better understanding of waste management practices, lowering of technology costs and flexible financial model. For the next two years, I am anticipating an increase of around 75-100 MW of installed capacity across India.

Power Today: On the technological front, what kinds of advancements are happening in the sector?

Salman Zafar: Nowadays, advanced thermal technologies like MBT, thermal depolymerisation, gasification, pyrolysis and plasma gasification are hogging limelight, mainly due to better energy efficiency, high conversion rates and less emissions. Incineration is still the most popular waste-to-energy technology, though there are serious emission concerns in developing countries as many project developers try to cut down costs by going for less efficient air pollution control system.

Power Today: What according to you, is the general sentiment towards setting up of Waste to Energy plants? Do you get enough cooperation from municipal bodies, since setting up of plants involves land acquisition and capital expenditure?

Salman Zafar: Waste-to-energy projects, be it in India or any other developing country, is plagued by NIMBY (not-in-my-backyard) effect. The general attitude towards waste-to-energy is that of indifference resulting in lukewarm public participation and community engagement in such projects.

Government should setup dedicated waste-to-energy research centres to develop lost-cost and low-tech waste to energy solutions

Government should setup dedicated waste-to-energy research centres to develop lost-cost and low-tech waste to energy solutions

Lack of cooperation from municipalities is a major factor in sluggish growth of waste-to-energy sector in India. It has been observed that sometimes municipal officials connive with local politicians and ‘garbage mafia’ to create hurdles in waste collection and waste transport. Supply of poor quality feedstock to waste-to-energy plants by municipal bodies has led to failure of several high-profile projects, such as 6 MW MSW-to-biogas project in Lucknow, which was shut down within a year of commissioning due to waste quality issues.

Power Today: Do you think that government policies are in tandem when it comes to enabling this segment? What policies need to be changed, evolved or adopted to boost this sector?

Salman Zafar: A successful waste management strategy demands an integrated approach where recycling and waste-to-energy are given due importance in government policies. Government should strive to setup a dedicated waste-to-energy research centre to develop a lost-cost and low-tech solution to harness clean energy from millions of tons of waste generated in India.

The government is planning many waste-to-energy projects in different cities in the coming years which may help in easing the waste situation to a certain extent. However, government policies should be inclined towards inclusive waste management, whereby the informal recycling community is not robbed of its livelihood due to waste-to-energy projects.

Government should also try to create favourable policies for establishment of decentralized waste-to-energy plants as big projects are a logistical nightmare and more prone to failure than small-to-medium scale venture.

Note: This interview was originally published in June 2016 edition of Power Today magazine. The unabridged version is available at this link

Waste-to-Energy in China: Perspectives

garbage-chinaChina is the world’s largest MSW generator, producing as much as 175 million tons of waste every year. With a current population surpassing 1.37 billion and exponential trends in waste output expected to continue, it is estimated that China’s cities will need to develop an additional hundreds of landfills and waste-to-energy plants to tackle the growing waste management crisis.

China’s three primary methods for municipal waste management are landfills, incineration, and composting. Nevertheless, the poor standards and conditions they operate in have made waste management facilities generally inefficient and unsustainable. For example, discharge of leachate into the soil and water bodies is a common feature of landfills in China. Although incineration is considered to be better than landfills and have grown in popularity over the years, high levels of toxic emissions have made MSW incineration plants a cause of concern for public health and environment protection.

Prevalent Issues

Salman Zafar, a renowned waste management, waste-to-energy and bioenergy expert was interviewed to discuss waste opportunities in China. As Mr. Zafar commented on the current problems with these three primary methods of waste management used by most developing countries, he said, “Landfills in developing countries, like China and India, are synonymous with huge waste dumps which are characterized by rotting waste, spontaneous fires, toxic emissions and presence of rag-pickers, birds, animals and insects etc.” Similarly, he commented that as cities are expanding rapidly worldwide, it is becoming increasingly difficult to find land for siting new landfills.

On incineration, Zafar asserted that this type of waste management method has also become a controversial issue due to emission concerns and high technology costs, especially in developing countries. Many developers try to cut down costs by going for less efficient air pollution control systems”. Mr. Zafar’s words are evident in the concerns reflected in much of the data ­that waste management practices in China are often poorly monitored and fraudulent, for which data on emission controls and environmental protection is often elusive.

Similarly, given that management of MSW involves the collection, transportation, treatment and disposal of waste, Zafar explains why composting has also such a small number relative to landfills for countries like China. He says, “Composting is a difficult proposition for developing countries due to absence of source-segregation. Organic fraction of MSW is usually mixed with all sorts of waste including plastics, metals, healthcare wastes and industrial waste which results in poor quality of compost and a real risk of introduction of heavy metals into agricultural soils.” Given that China’s recycling sector has not yet developed to match market opportunities, even current treatment of MSW calls for the need of professionalization and institutionalization of the secondary materials industry.

While MSW availability is not an issue associated with the potential of the resource given its dispersion throughout the country and its exponential increase throughout, around 50 percent of the studies analyzed stated concerns for the high moisture content and low caloric value of waste in China, making it unattractive for WTE processes.

Talking about how this issue can be dealt with, Mr. Zafar commented that a plausible option to increase the calorific value of MSW is to mix it with agricultural residues or wood wastes. Thus, the biomass resources identified in most of the studies as having the greatest potential are not only valuable individually but can also be processed together for further benefits.

Top Challenges

Among the major challenges on the other hand, were insufficient or elusive data, poor infrastructure, informal waste collection systems and the lack of laws and regulations in China for the industry. Other challenges included market risk, the lack of economic incentives and the high costs associated with biomass technologies. Nevertheless, given that the most recurring challenges cited across the data were related to infrastructure and laws and regulations, it is evident that China’s biomass policy is in extreme need of reform.

China’s unsustainable management of waste and its underutilized potential of MSW feedstock for energy and fuel production need urgent policy reform for the industry to develop. Like Mr. Zafar says, “Sustainable waste management demands an integration of waste reduction, waste reuse, waste recycling, and energy recovery from waste and landfilling. It is essential that China implements an integrated solid waste management strategy to tackle the growing waste crisis”.

Future Perspectives

China’s government will play a key role in this integrated solid waste management strategy. Besides increased cooperation efforts between the national government and local governments to encourage investments in solid waste management from the private sector and foster domestic recycling practices, first, there is a clear need to establish specialized regulatory agencies (beyond the responsibilities of the State Environmental Protection Administration and the Ministry of Commerce) that can provide clearer operating standards for current WTE facilities (like sanitary landfills and incinerators) as well as improve the supervision of them.

It is essential that China implements an integrated solid waste management strategy to tackle the growing waste crisis

It is essential that China implements an integrated solid waste management strategy to tackle the growing waste crisis

Without clear legal responsibility assigned to specialized agencies, pollutant emissions and regulations related to waste volumes and operating conditions may continue to be disregarded. Similarly, better regulation in MSW management for efficient waste collection and separation is needed to incentivize recycling at the individual level by local residents in every city. Recycling after all is complementary to waste-to-energy, and like Salman Zafar explains, countries with the highest recycling rates also have the best MSW to energy systems (like Germany and Sweden).

Nevertheless, without a market for reused materials, recycling will take longer to become a common practice in China. As Chinese authorities will not be able to stop the waste stream from growing but can reduce the rate of growth, the government’s role in promoting waste management for energy production and recovery is of extreme importance.

Rationale for Solid Waste Management

Some countries have achieved considerable success in solid waste management. But the rest of the world is grappling to deal with its wastes. In these places, improper management of solid waste continues to impact public health of entire communities and cities; pollute local water, air and land resources; contribute to climate change and ocean plastic pollution; hinder climate change adaptation; and accelerate depletion of forests and mines.

Compared to solid waste management, we can consider that the world has achieved significant success in providing other basic necessities like food, drinking water, energy and economic opportunities. Managing solid wastes properly can help improve the above services further. Composting organic waste can help nurture crops and result in a better agricultural yield. Reducing landfilling and building sanitary landfills will reduce ground and surface water pollution which can help provide cleaner drinking water. Energy recovery from non-recyclable wastes can satiate significant portion of a city’s energy requirement.

Inclusive waste management where informal waste recyclers are involved can provide an enormous economic opportunity to the marginalized urban poor. Additionally, a good solid waste management plan with cost recovery mechanisms can free tax payers money for other issues. In the case of India, sustainable solid waste management in 2011 would have provided

  • 9.6 million tons of compost that could have resulted in a better agricultural yield
  • energy equivalent to 58 million barrels of oil from non-recyclable wastes
  • 6.7 million tons of secondary raw materials to industries in the form of recyclable materials and livelihood to the urban poor

Solid waste management until now has only been a social responsibility of the corporate world or one of the services to be provided by the municipality and a non-priority for national governments. However, in Mumbai, the improperly managed wastes generate 22,000 tons of toxic pollutants like particulate matter, carbon monoxide, nitrous and sulfur oxides in addition to 10,000 grams of carcinogenic dioxins and furans every year. These numbers are only for the city of Mumbai. This is the case in cities all across the developing world. There are numerous examples where groundwater is polluted by heavy metals and organic contaminants due to solid waste landfills.

Solid waste management expenditure of above $ 1 billion per year competes with education, poverty, security and other sustainable initiatives in New York City. Fossil fuels for above 500,000 truck trips covering hundreds of miles are required to transport NYC’s waste to landfills outside the city and state. Similarly, New Delhi spends more than half of its entire municipal budget on solid waste management, while it is desperate for investments and maintenance of roads, buildings, and other infrastructure.

Solid waste management is not just a corporate social responsibility or a non-priority service anymore. Improper waste management is a public health and environmental crisis, economic loss, operational inefficiency and political and public awareness failure. Integrated solid waste management can be a nation building exercise for healthier and wealthier communities. Therefore, it needs global attention to arrive at solutions which span across such a wide range of issues.