Aquaculture is the answer to this current dilemma. Farming fish for food has been around since about 2000 B.C. Since then, technology has helped it advanced and developed better techniques to raise fish for food.

Benefits of Aquaculture

Fish is a great source of protein, and it also contains essential minerals including potassium, zinc, iodine and magnesium. Fish are also rich in phosphorus and calcium. For a healthy heart, the American Heart Association recommends eating fish twice a week.

The health benefits of fish are more than enough reason to eat them, but they are also a delicious meal. There is a large variety of fish to choose from, including freshwater and saltwater varieties. However, the increased amount of people eating fish has had an impact on wild populations. To prevent certain species from being overfished, it is important to find an alternative to providing fish to people, and that includes aquaculture.

Different types of aquaculture must be used to raise different species of fish. Large companies can engage in aquaculture on an industrial scale with fish held in tanks or in pens in lakes, ponds or even the ocean. Families can even perform aquaculture in their backyard.

The variety of fish that you can raise for food includes catfish, bait minnow, trout, carp and tilapia, among others.  It’s also possible to raise shellfish, including oysters and shrimp. Want to try your hand at growing water plants?  You can also use aquaculture principles for water chestnuts and red and brown algae.

Studies have shown that marine aquaculture has the potential to produce 16.5 billion tons of fish per year, which is more than enough to feed the growing population and meet nutritional needs.

In some areas, such as parts of Africa, aquaculture has made an enormous impact on the local community’s economy and employment as well. The food produced helps to sustain Africa’s growing population and provides local jobs with steady income.

The Downside of Aquaculture

While it has the potential to feed hungry communities and contribute to local economies, there are some problems associated with aquaculture. Having too many fish in a tank can lead to the spread of disease.  Also, the type of feed the fish eat can impact how healthy they are for humans. Keeping fish in pens in lakes, ponds or the ocean might cause the spread of parasites to wild populations.  Farmed fish could also escape their enclosure and, as a result, alter the natural ecosystem.

Recognizing the shortcomings of aquaculture is the first step to remedying its problems. As technology and farming practices advance and techniques improve, it’s possible that we will resolve many of these issues. This will lead to greater benefits for the human population that depends on fish for food.

Humans have the ingenuity and drive to make the world a better place for themselves and others. Population growth isn’t going to slow down any time soon, and we need to make sure everyone is taken care of and has enough to eat. While aquaculture has its pros and cons, it can be a sustainable and economic way to feed hungry people.  In time, it may even be the answer to world hunger.

The post Is Aquaculture the Answer to World Hunger? first appeared on BioEnergy Consult.

Trees grow towards the sun, which feeds their foliage. Animals are adapted to their pastures, and their pastures are adapted to them. As a result, everyone wins. Animals satisfy hunger, and plants flourish again. In this great life journey on Earth, each species has a particular function and takes a certain place. There are no useless creatures. They are all balanced.

And Homo sapiens – a man of sense – enters the arena of history. He received a fabulous inheritance that the Earth has carefully preserved for 4 billion years. He is only 200,000 years old, but he has already changed the face of the world. Despite his vulnerability, he captured all the habitats and conquered the territory like no other species before him. Today, life – our life – is only a link in the chain of countless lives following one another on Earth for 4 billion years.

For a long time, the relationship between people and the planet were fairly balanced and resembled a natural and equal union. Now, we rarely think about global issues, being lost in everyday concerns. Meanwhile, we are on the verge of a disaster. Thanks to the achievements of science and technology, people learned to satisfy their needs, but some inventions brought us much more harm than good. We are killing our planet gradually but purposefully.

Only by changing your habits quite a bit, you and your loved ones can make the world cleaner and safer. These 15 simple tips do not require you either time or extra effort, but can make a difference in saving the world:

1. Make the most of natural ambient light. Turn off the light in the room or the computer monitor when you do not need it. And do not forget about the chargers in the appliance receptacle!
2. Teach yourself to turn off the water at a time when you do not need it – for example, while brushing your teeth or rubbing the pan with a detergent. On average, according to statistics, 5-10 liters of water (depending on pressure) flows out of the tap per minute. Also, reduce the time spent in the shower for 1-2 minutes.
3. Replace incandescent bulbs with LED lights: they save energy and last longer.
4. Change to a bike. It is cool, fast, and comfortable. Having tried only once, you no longer want to get on the “hot bus” or spend time stuck in traffic jams. In addition, a bicycle is an excellent vehicle as it does not pollute the air with dangerous gases.
5. Use phosphate-free detergents. On the Internet, there are many resources offering ecological household chemicals.
6. Buy less plastic bags, go to the store with your eco-bag.
7. Replace plastic with paper and glass. If you cannot do without disposable tableware – for example, when going on a picnic – use paper plates and cups rather than plastic ones. Purified water from under sink reverse osmosis system is the best alternative of plastic bottled water.
8. Choose cosmetics and chemicals especially carefully. You should give preference to products that have not been tested on animals and do not adversely affect the environment at different stages of production.
9. Though it is as simple as ABC but very effective – try to bring plastic, glass, and paper for recycling.
10. Bring batteries to special shops and institutions because this is a dangerous and very toxic type of waste.
11. Refuse semi-finished products. Experts say that today, the manufacture of these products is fully controlled by monopoly companies that abuse antibiotics, overload the ecosystem, and apply the principles of intensive management for their own profit. Of course, in such conditions, quality suffers. Homemade food is much better. Do not know how to cook? A dating site may be helpful.
12. Buy local food – the one that is made in your area. This food undergoes less chemical treatment which is sometimes used for long-term transportation.
13. Use water filters. In this case, you do not need to spend money on bottled drinking water. Thus, you will not only save your family budget but also reduce the environmental impact caused by the production and transportation of plastic bottles.
14. Plant flowers on window sills and trees in the courtyards. Do not let anyone cut down green spaces near your house.
15. Support environmental organizations and encourage your family to do it.

“Orbiting Earth, I saw how beautiful our planet is. People, let us preserve and increase this beauty, not destroy it!”

– Yuri Gagarin

The post 15 Simple Ways You and Your Family Can Save the Planet first appeared on BioEnergy Consult.

Consumer Behavior – A Top Priority

Consumer behaviour is a huge priority area in particular for industrialised nations – it is estimated that some western societies might be throwing away up to a third of all food purchased. The rise of cheap food and convenience culture in recent years has compounded this problem, with few incentives or disincentives in place at producer, retail or consumer level to address this.

While it is likely that a number of structural levers – such as price, regulation, enabling measures and public benefits – will need to be pulled together in a coherent way to drive progress on this agenda, at a deeper level there is a pressing argument to explore the psycho-social perspectives of behaviour change.

Individual or collective behaviours often exist within a broader cultural context of values and attitudes that are hard to measure and influence. Simple one-off actions such as freezing leftovers or buying less during a weekly food shop do not necessarily translate into daily behaviour patterns. For such motivations to have staying power, they must become instinctive acts, aligned with an immediate sense of purpose. Click here to see what steps you can take to tackle this issue. The need to consider more broadly our behaviours and how they are implicated in such issues must not stop at individual consumers, but extend to governments, businesses and NGOs if effective strategies are to be drawn up.

Emergence of Food Waste Disposers

Food waste disposer (FWDs), devices invented and adopted as a tool of food waste management may now represent a unique new front in the fight against climate change. These devices, commonplace in North America, Australia and New Zealand work by shredding household or commercial food waste into small pieces that pass through a municipal sewer system without difficulty.

The shredded food particles are then conveyed by existing wastewater infrastructure to wastewater treatment plants where they can contribute to the generation of biogas via anaerobic digestion. This displaces the need for generation of the same amount of biogas using traditional fossil fuels, thereby averting a net addition of greenhouse gases (GHG) to the atmosphere.

The use of anaerobic digesters is more common in the treatment of sewage sludge, as implemented in the U.K., but not as much in the treatment of food waste. In addition to this, food waste can also replace methanol (produced from fossil fuels) and citric acid used in advanced wastewater treatment processes which are generally carbon limited.

Despite an ample number of studies pointing to the evidence of positive impacts of food waste disposer, concerns regarding its use still exist, notably in Europe. Scotland for example has passed legislation that bans use of FWDs, stating instead that customers must segregate their waste and make it available curbside for pickup. This makes it especially difficult for the hospitality industry, to which the use of disposer is well suited.

The U.S. however has seen larger scale adoption of the technology due to the big sales push it received in the 1950s and 60s. In addition to being just kitchen convenience appliances, FWDs are yet to be widely accepted as a tool for positive environmental impact.

Note: Note: This excerpt is being published with the permission of our collaborative partner Be Waste Wise.

The post Role of Food Waste Disposers in Food Waste Management first appeared on BioEnergy Consult.

Read on to discover many eco-friendly wrapping and packaging materials that could end up being better for the environment. Thanks to modern delivery services like healthy food delivery in Miami Dade we’re able to get meals wrapped in sustainable packages.

1. Glass Containers

One of the many reasons why people want to make the switch from plastic is because it can take centuries to break down. However, so does glass, so why use it? Unlike plastic which tends to lean toward being a single-use product, glass is something you can have forever. It’s one of the longest-lasting materials and will prove to offer no end of convenience.

In most cases, you can use glass containers in your fridge, freezer, microwave, and even oven. You couldn’t do that with most plastic products. Glass containers are also an excellent alternative for plastic in almost every way. You can put your unwrapped sandwiches in them and seal the lid shut. You can also put leftover dinner into them for reheating later.

Glass containers are even something you can take to the grocery store. Instead of a supermarket filling a plastic container with their deli items or bulk groceries, you can fill your glass jars. One product can end up having many uses, saving thousands of plastic wrap rolls and containers from requiring waste disposal.

2. Mason Jars

Mason jars have been around since the 1850s, but it’s only in recent years there has been a resurgence in their use. As consumers come to realize that plastic is not environmentally-friendly, they are starting to use sealable mason jars that serve a whole variety of purposes. Cafes are using them for beverages, and you can even use them for serving at home. What’s more, there’s nothing wrong with using them for produce, soup, grains, and more. Move aside plastic; there’s a new player in town.

3. Parchment Paper

If you are trying to minimize how much rubbish you send away to catering bins, then consider swapping your cling film for parchment paper. Wax or parchment paper is an excellent alternative, while also breaking down far quicker than plastic wrap. It will still keep your sandwiches fresh, but with a much less detrimental impact on the environment.

4. Bees Wrap

Bees wrap is a relatively new product to hit the market, but it’s already making waves. It consists of cotton muslin cloth dipped in beeswax, tree resin, and jojoba oil. When you heat them with your hands, you’re able to seal food within. Both the jojoba oil and beeswax are also antibacterial which can offer exceptional benefits with preservation.

When you have eaten your sandwich, you don’t need to worry about impacting waste disposal. You can clean the wraps and reuse them.

5. Cardboard

Many countries around the world have banned single-use plastic bags, with New Zealand the latest nation to join the movement. It will only be a matter of time before waste disposal businesses notice the dramatic impact in plastic waste. That’s a good thing – but how will people package their goods, or carry their groceries? Cardboard is about to become far more popular than it is now.

Instead of packaging your items in plastic, you can store them neatly in cardboard boxes. They break down into the environment, are effortless to stack, and you can use them more than once.

6. Go Nude

For the sake of waste disposal, why not consider going nude? We don’t mean take all your clothes off, but why not avoid packaging altogether? Grocery stores are not making this process easy with the number of plastic-wrapped items they have, but you can be more conscientious about the purchasing decisions you make.

Put your vegetables and fruit in cloth bags and your loose bulk bin items into glass jars. Instead of buying pasta, rice, and other ingredients in plastic packets, buy them from bulk stores that encourage you to bring containers to put them in. If you can’t seem to avoid plastic, then draw up a meal plan that differs from what you usually do. You can then make an effort to eat food that will not arrive in packaging.

Conclusion

People used to cope without plastic for packaging and wrapping, and they can do so again. Think of the effects of waste disposal and how you can stop your contribution to the growing problem. Use glass jars and containers, buy ingredients in bulk, and stop using plastic wrap for your sandwiches. These might seem like small changes, but when 7.7 billion people follow suit, we can make a significant difference.

The post 6 Best Alternatives for Plastic Wrapping and Packaging first appeared on BioEnergy Consult.

The Foundation has centralised, automated kitchens that can cook close to 6,000 kilos of rice, 4.5 to 5 tonnes of vegetables and 6,000 litres of sambar, in only 4 hours. In order to make sustainable use of organic waste generated in their kitchens, Akshaya Patra Foundation has set up anaerobic digestion plants to produce biogas which is then used as a cooking fuel. The primary equipment used in the biogas plant includes size reduction equipment, feed preparation tank for hydrolysis of waste stream, anaerobic digester, H₂S scrubber and biogas holder.

Working Principle

Vegetable peels, rejects and cooked food waste are shredded and soaked with cooked rice water (also known as ganji) in a feed preparation tank for preparation of homogeneous slurry and fermentative intermediates. The hydrolyzed products are then utilized by the microbial culture, anaerobically in the next stage. This pre-digestion step enables faster and better digestion of organics, making our process highly efficient.

The hydrolyzed organic slurry is fed to the anaerobic digester, exclusively for the high rate biomethanation of organic substrates like food waste. The digester is equipped with slurry distribution mechanism for uniform distribution of slurry over the bacterial culture.

Optimum solids are retained in the digester to maintain the required food-to-microorganism ratio in the digester with the help of a unique baffle arrangement. Mechanical slurry mixing and gas mixing provisions are also included in the AD design to felicitate maximum degradation of organic material for efficient biogas production.

After trapping moisture and scrubbing off hydrogen sulphide from the biogas, it is collected in a gas-holder and a pressurized gas tank. This biogas is piped to the kitchen to be used as a cooking fuel, replacing LPG.

Basic Design Data and Performance Projections

Waste handling capacity 1 ton per day cooked and uncooked food waste with 1 ton per day ganji water

Input Parameters                      

Biogas Production

Output Parameters

Major Benefits

Modern biogas installations are providing Akshaya Patra, an ideal platform for managing organic waste on a daily basis. The major benefits are:

• Solid waste disposal at the commercial kitchen site avoiding waste management costs
• Immediate waste processing overcomes problems of flies, mosquitos etc.
• Avoiding instances when the municipality does not pick up waste, creating nuisance, smell, spillage etc.
• Anaerobic digestion of Ganji water instead of directly treating it in ETP, therefore reducing organic load on the ETPs and also contributing to additional biogas production.

The decentralized model of biogas based waste-to-energy plants at Akshaya Patra kitchens ensure waste destruction at source and also reduce the cost incurred by municipalities on waste collection and disposal.

An on-site system, converting food and vegetable waste into green energy is improving our operations and profits by delivering the heat needed to replace cooking LPG while supplying a rich liquid fertilizer as a by-product.  Replacement of fossil fuel with LPG highlights our organization’s commitment towards sustainable development and environment protection.

The typical ROI of a plug and play system (without considering waste disposal costs, subsidies and tax benifts) is around three years.

Future Plans

Our future strategy for kitchen-based biogas plant revolves around two major points:

• Utilization of surplus biogas – After consumption of biogas for cooking purposes, Akshaya Patra will consider utilizing surplus biogas for other thermal applications. Additional biogas may be used to heat water before boiler operations, thereby reducing our briquette consumption.
• Digested slurry to be used as a fertilizer – the digested slurry from biogas plant is a good soil amendment for landscaping purposes and we plan to use it in order to reduce the consumption of water for irrigation as well as consumption of chemical fertilizers.

The post Biogas from Kitchen Waste at Akshaya Patra Foundation first appeared on BioEnergy Consult.

There are a wide range of difficulties facing start-ups of all kinds, and being able to make an impression within the drinks industry is certainly no different. Of course, not every enterprise will start out hoping to become the next Coca Cola, Heineken or Starbucks, but having a solid business plan and a clearly defined set of goals is likely to offer a greater chance for success.

Also Read: Step-by-Step Guide to Launch Your Small Business

Part of that planning involves identifying which tools and processes are going to help your organisation compete against its rivals. Advances are being made all the time, but which technologies might be most effective in launching a beverage business. Read on to know more:

1. Flow-through systems

Automated systems can prove invaluable in terms of streamlining the processes of sorting, packaging, labelling and distributing produce. Flow-through systems utilise robots to do the vast majority of this work, using proximity sensors in order to detect the presence of other objects and repeat the same movements. Operating in this way can help to reduce the risk of human error while simultaneously lowering running costs and increasing productivity and efficiency.

2. Industrial Internet of Things

This is where devices in an industrial setting are connected on a network in order to communicate with one another. The IIoT can enable machines involved in the manufacturing process to log data and identify any faults in the production line, which means each drink is turned out to a greater level of consistency.

3. Voice technology

Another development that is assisting beverage businesses – and those in other industries – is the emergence of voice technology. Warehouse operators can now harness this concept to issue voice commands that will be picked up by the relevant pieces of machinery, which subsequently carry out the action. This means tasks can be completed in a safer, more time-efficient manner, while it also makes training of new employees easier in that there are fewer manual skills for them to learn.

4. NFC tags

Moving away from the manufacturing side of the business, near field communication (NFC) tags can help to improve the customer experience once the product has been put to market. NFC technology is what’s used in contactless payment devices, and the concept has been adapted by the beverage industry in order to add another dimension to the product that consumers purchase.

They can be added to the label or packaging and scanned with a smartphone to unlock a range of additional information about the drink.

5. Cloud service

For businesses in any field, the challenge of data storage is one that can be difficult to overcome. Giants of the industry will have the available resources to own and run their own infrastructures, but others may not be in a position to do so or may wish to focus their spending in different areas.

As a solution, there are cloud service providers who offer products such as Virtual Desktop or Azure Virtual Desktop with rented access to certain software at a lower cost, which frees up funds for beverage companies to commit more capital towards the likes of R&D, production and marketing.

The post Innovative Technologies to Help a Start-Up in Beverage Industry first appeared on BioEnergy Consult.

To address these problems, the field of bioengineering has found ways to recycle scrap food, reduce the amount thrown away, and find alternative ways to produce sufficient food to feed the world more sustainably and with less waste.

Engineering Sustainable Food

A degree in bioengineering, or a masters in biomedical engineering online, involves the study of a range of scientific fields from computational biology and physiological systems to mechanical engineering and material sciences. This multidisciplinary approach lends itself well to improving the sustainability of food production. For many years, the genetic engineering of plants has created the potential of increasing production in a sustainable and environmentally-friendly way, and more recently, progress has been made in creating synthetic meat.

Now, without the use of genetic engineering, biomedical engineers have created the first bioprinted steak from cattle cells. The qualities of real meat are replicated by allowing living cells to grow and interact in the same way as they would in nature. The result is the creation of an authentic-tasting steak produced without the extensive environmental damage caused by farming livestock.

Converting Food Into Fuel

Every year in the US alone, 80 billion pounds of food is thrown away without being eaten. An increasing number of scientific projects are working on harnessing the valuable energy from food waste and converting it into renewable fuel. This can then be used to power a range of vehicles from privately owned cars to planes and trains.

In communities where food waste is collected along with other recyclable materials, anaerobic digestion can also be used to convert the high fat content of food waste into green electricity, which is put back into the grid to power households.

Reducing Food Waste

Some food scraps are unavoidable, but now bioengineering is being applied to reduce some of the waste from over consumerism. Shoppers often buy excess food and leave fresh fruit and vegetables to go mouldy before they are eaten. Using plant derived-technology, the protective peels of fruit and vegetables can now be enhanced, allowing them to stay fresh for triple the amount of time of regularly grown produce. As the freshness of the products is protected for longer, the logistical costs of a strictly controlled refrigerated supply chain are reduced, and in the long-term, food waste is minimized.

As it exists at the moment, the food supply chain is environmentally damaging. From growing meat in a lab to extending the lifespan of fresh food, bioengineers are now finding ways to improve sustainability in food production.

The post The Role of Bioengineering in Sustainable Food Supply Chain first appeared on BioEnergy Consult.

Shopping for and eating locally grown food is stellar for the environment and your health. However, it’s a bit difficult to navigate these days when most common items are imported. Let’s go through some tips to become a responsible food consumer:

1. Research Food Local to Your Area

First things first, get to know what crops grow best in your area. Do some googling and go to the library to find resources. Talk to people at your local grocery store.

Figure out which foods grow during the specific seasons and tailor your diet to suit the standards. Buy some cookbooks that have recipes specific to your area if they’re available.

2. Go Into the Store With a Game Plan

Going into a grocery store can either be a terrible burden or a fun experience. Most of the time, we enter huge establishments that push certain products towards consumers due to profits. Those who consider grocery shopping burdensome should craft a plan of action.

You’ve already looked into local foods in your area. Now, you can craft recipes based on the ingredients. Plan what you’re going to cook for the week before you go shopping. Then, you can shop efficiently without succumbing to sales prices or food from far away.

3. Use Online Marketplaces Run by Farmers

While being responsible for your food choices involves eating mostly locally, some imported delicacies are hard to resist. Go easy on yourself. While you should avoid going into huge grocery chains and buying exclusively imported foods, you can splurge every once in a while.

If you want to buy certain foods that need to be imported, consider using online marketplaces. These stores are partnered directly with farmers. That way, you can enjoy imported foods while supporting farmers directly.

4. Go to Your Local Farmers Market

While grocery chains are great for certain products, there’s nothing like a farmers’ market. At a farmers market, you are directly exposed to the foods grown in your area. While farmers maintain a huge presence in these markets, you’ll also see other vendors as well.

You’ll be able to buy locally made dips, chips, and other snacks. Plus, you can also buy crops or plants from certain individuals if you have a green thumb.

5. Buy Less

When transitioning to the life of a responsible food consumer, you’ll have to adjust to buying less every week. A responsible consumer does not overbuy. The individual buys what they need, whether that can be accomplished in one trip to the store or several.

The more you minimize food waste, the better you’ll feel. However, take baby steps and don’t feel too down if you have waste.

Become a Responsible Food Consumer

The task of being a responsible food consumer seems impossible, but it isn’t. The journey will take a while since you’re changing your habits and mindset, but it’s worth it. When you follow the steps to be more responsible, your body, mind, and the earth will thank you.

Take your time, make small changes every day, and have fun in the process. Maybe a love for cooking or baking will pop up while you are in the process.

The post 5 Ways to Shop For Food Responsibly first appeared on BioEnergy Consult.

Bin2Grid

The Bin2Grid project is designed to make use of the 88 million tons of food waste that are produced in the European Union every year. For the past two years, the program has focused on collecting the food waste and unwanted or unsold produce, and converting it, first to biogas and then later to biomethane. This biomethane was used to supply fueling stations in the program’s pilot cities – Paris, Malaga, Zagreb and Skopje.

Biomethane could potentially replace fossil fuels, but how viable is it when so many people still have cars that run on gasoline?

The Benefits of Biomethane

Harvesting fossil fuels is naturally detrimental to the environment. The crude oil needs to be pulled from the earth, transported and processed before it can be used.  It is a finite resource and experts estimate that we will exhaust all of our oil, gas and coal deposits by 2088.

Biomethane, on the other hand, is a sustainable and renewable resource – there is a nearly endless supply of food waste across the globe and by converting it to biomethane, we could potentially eliminate our dependence on our ever-shrinking supply of fossil fuels. Some companies, like ABP Food Group, even have anaerobic digestion facilities to convert waste into heat, power and biomethane.

Neutral Waste

While it is true that biomethane still releases CO2 into the atmosphere while burned, it is a neutral kind of waste. Just hear us out. The biggest difference between burning fossil fuels and burning biomethane is that the CO2 that was trapped in fossil fuels was trapped there millions of years ago.  The CO2 in biomethane is just the CO2 that was trapped while the plants that make up the fuel were alive.

Biofuel in all its forms has a bit of a negative reputation – namely, farmers deforesting areas and removing trees that store and convert CO2 in favor of planting crops specifically for conversion into biofuel or biomethane. This is one way that anti-biofuel and pro-fossil fuel lobbyists argue against the implementation of these sort of biomethane projects – but they couldn’t be more wrong, especially with the use of food waste for conversion into useful and clean energy.

Using biogas is a great way to reduce your fuel costs as well as reuse materials that would otherwise be wasted or introduced into the environment. Upgrading biogas into biomethane isn’t possible at home at this point, but it could be in the future.

If the test cities in the European Union prove successful, biomethane made from food wastes could potentially change the way we think of fuel sources.  It could also provide alternative fuel sources for areas where fossil fuels are too expensive or unavailable. We’ve got our fingers crossed that it works out well – if for no other reason that it could help us get away from our dependence on finite fossil fuel resources.

The post Biomethane from Food Waste: A Window of Opportunity first appeared on BioEnergy Consult.

In United States, food waste is the third largest waste stream after paper and yard waste. Around 13 percent of the total municipal solid waste generated in the country is contributed by food scraps. According to USEPA, more than 35 million tons of food waste are thrown away into landfills or incinerators each year, which is around 40 percent of all food consumed in the country.

As far as United Kingdom is concerned, households throw away around 4.5 million tons of food each year. Food wastage in Canada causes 56.6 million tonnes of CO2-equivalent emissions. These statistics are an indication of tremendous amount of food waste generated all over the world.

Food Waste Management Strategy

The proportion of food waste in municipal waste stream is gradually increasing and hence a proper food waste management strategy needs to be devised to ensure its eco-friendly and sustainable disposal. The two most common methods for food waste recycling are:

• Composting: A treatment that breaks down biodegradable waste by naturally occurring micro-organisms with oxygen, in an enclosed vessel or tunnel;
• Anaerobic digestion (AD): A treatment that breaks down biodegradable waste in the absence of oxygen, producing a renewable energy (biogas) that can be used to generate electricity and heat.

Currently, only about 3 percent of food waste is recycled throughout USA, mainly through composting. Composting provides an alternative to landfill disposal of food waste, however it requires large areas of land, produces volatile organic compounds and consumes energy. Consequently, there is an urgent need to explore better recycling alternatives.

Anaerobic digestion has been successfully used in several European and Asian countries to stabilize food wastes, and to provide beneficial end-products. Sweden, Austria, Denmark, Germany and England have led the way in developing new advanced biogas technologies and setting up new projects for conversion of food waste into energy.

Of the different types of organic wastes available, food waste holds the highest potential in terms of economic exploitation as it contains high amount of carbon and can be efficiently converted into biogas and organic fertilizer. Food waste can either be used as a single substrate in a biogas plant, or can be co-digested with organic wastes like cow manure, poultry litter, sewage, crop residues, abattoir wastes, etc.

Food waste is one of the single largest constituent of municipal solid waste stream. Diversion of food waste from landfills can provide significant contribution towards climate change mitigation, apart from generating revenues and creating employment opportunities. Rising energy prices and increasing environmental pollution makes it more important to harness renewable energy from food wastes.

Anaerobic digestion technology is widely available worldwide and successful projects are already in place in several European as well as Asian countries which makes it imperative on waste generators and environmental agencies in USA to strive for a sustainable food waste management system.

The post What You Need to Know About Food Waste Management first appeared on BioEnergy Consult.