5 Reasons Why Your Business Needs biogas storage tank systems？

Not every utility that cleans wastewater views itself as a wastewater treatment plant.

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Some utilities have started making the shift from saying we make clean water to saying we recover resources from water, said Matt Williams, an anaerobic digestion/biosolids expert from WesTech. They are seeing themselves as water resource recovery facilities.

These utilities are using anaerobic digestion to turn their biosolids into biogas &#; a renewable energy source. Williams shares five reasons why every wastewater treatment plant should consider doing the same.

1. Stop Wasting Resources

Traditionally, biosolids are thought of as something that needs to be removed, and the waste gas is flared into the environment. Utilities that do that are throwing potential money out the window, Williams explained.

That gas is a very valuable resource, he said. Utilities are just wasting it.

2. Power Alternative

Biogas can be used to power a variety of functions at the plant. Currently, the most popular use for it is to run plant heating systems, but it is also suitable for fueling process heating, sludge drying, cogeneration, vehicles, and other equipment.

One option, for smaller facilities in particular, is a combined heat and power (CHP) unit. Operations looking for a solution with very low emissions and the ability to use the gas with little to no scrubbing could consider a CHP unit with a Stirling motor.

3. Good for Any Size Utility

Ten years ago it didn&#;t make financial sense for a small plant to invest in an anaerobic digester. That is no longer the case.

The model is changing, said Williams. In many cases, yes &#; a small wastewater treatment plant can&#;t produce enough biogas on its own to warrant buying the equipment. But if they consider what else they can bring to their digester and think outside of the box, an anaerobic digester stands to really be worth the investment.

Plants now have the opportunity to collect food waste and fats, oils, and grease (FOG) from area businesses and add them to their digesters. This transaction is mutually beneficial for both area restaurants &#; as they are required to properly dispose of waste &#; and wastewater treatment plants that need additional fuel sources for their digesters.

4. Financial Benefits

By combining biosolids from the plant with FOG and food waste, some wastewater treatment plants have been able to go completely &#;off the grid.&#; Not relying on outside electricity saves utilities a significant amount of money and gives them more control over their energy efficiency. Some wastewater treatment plants produce more biogas than they need, which gives them an opportunity to make a profit by selling it to other facilities.

5. Reduce Odor and Sludge

Feeding biosolids to an anaerobic digester means there are fewer biosolids that need to be managed at the plant.

The amount of solids in the sludge is reduced when plants improve their digestion process, said Williams. That means there isn&#;t a lot of odor and the plant has less to haul away. That saves them money and time. It is a win-win.

Looking to the Future

As biogas technology expands, so will the incentives for utilities to take advantage of it.

No one knows what this industry will eventually look like because there are a variety of unconventional models out there, said Williams. Right now we are still in the infancy of this, but there is so much potential for growth.

Note: A version of this article was originally published by Water Online.

Worldwide interest in renewable energy sources is gathering momentum. Biogas production is growing steadily, as more people are setting up biogas plants to produce biogas. To get a better picture of what biogas is good for, we have created this list explaining the advantages and disadvantages of biogas.

If you want to learn more about what biogas is, have a look:

Advantages of Biogas

1. Biogas is Eco-Friendly

Biogas is a renewable, as well as a clean, source of energy. Gas generated through biodigestion is Biogas is a renewable, as well as a clean, source of energy. Gas generated through biodigestion is non-polluting; it actually reduces greenhouse emissions (i.e. reduces the greenhouse effect). No combustion takes place in the process, meaning there is zero emission of greenhouse gasses into the atmosphere; therefore, using gas from waste as a form of energy is a great way to combat global warming.

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Unsurprisingly, concern for the environment is a major reason why the use of biogas has become more widespread. Biogas plants significantly curb the greenhouse effect: the plants lower methane emissions by capturing this harmful gas and using it as fuel. Biogas generation helps cut reliance on the use of fossil fuels, such as oil and coal.

Another biogas advantage is that unlike other types of renewable energies, the process to create the gas is natural, not requiring energy for the generation process. In addition, the raw materials used in the production of biogas are renewable, as trees and crops will continue to grow. Manure, food scraps, and crop residue are raw materials that will always be available, which makes it a highly sustainable option.

2. Biogas Generation Reduces Soil and Water Pollution

Overflowing landfills don&#;t only spread foul smells- they also allow toxic liquids to drain into underground water sources.

Subsequently,  another advantage of biogas is that biogas generation may improve water quality. Moreover, anaerobic digestion deactivates pathogens and parasites; thus, it&#;s also quite effective in reducing the incidence of waterborne diseases. Similarly, waste collection and management significantly improve in areas with biogas plants. This in turn, leads to improvements in the environment, sanitation, and hygiene.

3. Biogas Generation Produces Organic Fertilizer

The by-product of the biogas generation process is enriched organic digestate, which is a perfect supplement to, or substitute for, chemical fertilizers. The fertilizer discharge from the digester can accelerate plant growth and resilience to diseases, whereas commercial fertilizers contain chemicals that have toxic effects and can cause food poisoning, among other things.

4. It&#;s A Simple and Low-Cost Technology That Encourages A Circular Economy

The technology used to produce biogas is quite cheap. It is easy to set up and needs little investment when used on a small scale. Small biodigesters can be used right at home, utilizing kitchen waste and animal manure. A household system pays for itself after a while and the materials used for generation are absolutely free. The gas produced can be used directly for cooking and generation of electricity. This is what allows the cost of biogas production to be relatively low.

Farms can make use of biogas plants and waste products produced by their livestock every day. The waste products of one cow can provide enough energy to power a lightbulb for an entire day.

In large plants, biogas can also be compressed to achieve the quality of natural gas and utilized to power automobiles. Building such plants requires relatively low capital investment and creates green jobs. For instance, in India, 10 million jobs were created, mostly in rural areas, in plants and in organic waste collection.

5. Healthy Cooking Alternative

Biogas generators save women and children from the daunting task of firewood collection. As a result, more time is left for cooking and cleaning. More importantly, cooking on a gas stove, instead of over an open fire, prevents the family from being exposed to smoke in the kitchen. This helps prevent deadly respiratory diseases. Sadly, 4.3 million people a year die prematurely from illnesses attributed to the household air pollution caused by the inefficient use of solid fuels for cooking.

HomeBiogas &#; the perfect biogas solution for your home!

HomeBiogas systems allow you to enjoy all the advantages of biogas production and use from your home.  They are easy to install, require minimal effort to use and produce clean, renewable energy and fertilizer.  If you&#;re eager to reduce your fossil fuel dependency while safely and efficiently producing renewable energy for everyday use, find the HomeBiogas product that best fits your lifestyle! 

Disadvantages of Biogas

1. Few Technological Advancements

An unfortunate disadvantage of biogas today is that the systems used in the production of biogas are not efficient. There are no new technologies yet to simplify the process and make it accessible and low cost. This means large scale production to supply for a large population is still not possible. Although the biogas plants operating today are able to meet some energy needs, many governments are not willing to invest in the sector.

2. Contains Impurities

After refinement and compression, biogas still contains impurities. If the generated bio-fuel was used to power automobiles it could corrode the metal parts of the engine. This corrosion would lead to increased maintenance costs. The gaseous mix is much more suitable for kitchen stoves, water boilers, and lamps.

3. Effect of Temperature on Biogas Production

Like other renewable energy sources (e.g. solar, wind), biogas generation is also affected by the weather. The optimal temperature bacteria needed to digest waste is around 37°C. In cold climates, digesters require heat energy to maintain a constant biogas supply.

4. Less Suitable For Dense Metropolitan Areas

Another biogas disadvantage is that industrial biogas plants only make sense where raw materials (food waste, manure) are in plentiful supply . For this reason, biogas generation is much more suitable for rural and suburban areas.

Ready to set up your own small biogas generation system?

Do you think the pros outweigh the cons when it comes to biogas use for living a more sustainable life? Us too! 

If you&#;re ready to take an actionable step in reducing your carbon footprint by making and using renewable energy at home, then the HomeBiogas system is right for you. Check out our variety of products to see which HomeBiogas system will help you turn your waste into clean energy.

Thanks for reading our discussion on the advantages and disadvantages of biogas. We at HomeBiogas are here for any questions. You are also welcome to sign up for our newsletter, and get monthly updates about special deals, coupons, industry news, sustainability trends, recipe videos, and more!

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