5 Reasons Why Your Business Needs biogas storage tank systems？

Five Reasons to Harvest the Power of Biogas

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, particularly for smaller facilities, is a combined heat and power (CHP) unit. Operations seeking solutions with very low emissions and minimal gas treatment might explore a CHP unit equipped with a Stirling motor.

3. Good for Any Size Utility

Ten years ago, it may not have been financially feasible for small plants to invest in anaerobic digesters, but that has changed.

The model is evolving, said Williams. In many cases, a small wastewater treatment facility alone may not generate enough biogas to justify purchasing equipment. However, if they approach this with creativity and explore supplementary sources for their digester, investing in anaerobic digestion can yield substantial rewards.

Facilities now have the opportunity to collect food waste and fats, oils, and grease (FOG) from local businesses to be added to their digesters. This arrangement benefits nearby restaurants, which must dispose of waste properly, while also providing vital fuel for wastewater treatment plants.

4. Financial Benefits

By integrating biosolids from the plant with FOG and food waste, some wastewater treatment plants have managed to operate "off the grid." This independence from external electricity sources allows utilities to save money and enhance their energy efficiency. Additionally, certain plants produce more biogas than necessary, positioning them to sell the excess to other facilities for profit.

5. Reduce Odor and Sludge

Utilizing biosolids in an anaerobic digester results in fewer materials that require management at the facility.

Improving the digestion process decreases the solid content in sludge, leading to less odor and reduced hauling costs for the plant, according to Williams. This creates a win-win situation for everyone involved.

Looking to the Future

The advancement of biogas technology will likely create more incentives for utilities to leverage this resource.

No one can predict the ultimate form of this industry, as various nontraditional models continue to evolve, said Williams. We are still in the early stages, but the potential for growth is immense.

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 non-polluting; it actually reduces greenhouse emissions (i.e., reduces the greenhouse effect). No combustion takes place in the process, which means there are zero emissions of greenhouse gasses; thus, using gas produced from waste as energy is an effective measure to combat global warming.

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Environmental concerns have significantly driven the increased adoption of biogas solutions. Biogas plants effectively curb the greenhouse effect: they capture methane emissions and utilize this harmful gas as fuel. The generation of biogas helps reduce reliance on fossil fuels such as oil and coal.

Furthermore, unlike other renewable energy sources, the process of creating biogas is natural and doesn’t require energy input for its production. The raw materials used—such as manure, food scraps, and crop residues—are renewable and abundantly available, ensuring the sustainability of this option.

2. Biogas Generation Reduces Soil and Water Pollution

Overflowing landfills not only emit unpleasant odors but also allow toxic liquids to seep into underground water sources.

Consequently, biogas generation can enhance water quality. The anaerobic digestion process also deactivates pathogens and parasites, effectively reducing waterborne diseases. Additionally, waste management improves significantly in areas with biogas installations, promoting better environmental sanitation and hygiene.

3. Biogas Generation Produces Organic Fertilizer

The byproduct of biogas generation is enriched organic digestate, which serves as a great substitute for chemical fertilizers. Fertilizer from the digester enhances plant growth and boosts disease resistance. In contrast, chemical fertilizers introduce toxins that can pose health risks, including food poisoning.

4. It’s A Simple and Low-Cost Technology That Encourages A Circular Economy

The technology behind biogas production is relatively inexpensive and straightforward to implement, particularly on a small scale. Home setups can easily utilize kitchen waste and livestock manure. These installations often pay for themselves over time, with freely available raw materials. The generated gas can be used directly for cooking or electricity generation, resulting in low production costs.

Agricultural operations can effectively harness biogas plants, utilizing the daily waste products from their livestock. For example, the waste from one cow can produce enough energy to power a light bulb throughout the day.

In large systems, biogas can even be compressed to meet the quality standards of natural gas, enabling it to fuel vehicles. Constructing such facilities requires relatively low investment, and they can generate green jobs. For instance, in India, ten million positions were created in organic waste management through these initiatives.

5. Healthy Cooking Alternative

Biogas generators alleviate the need for women and children to collect firewood. Consequently, they can dedicate more time to cooking and cleaning. Moreover, using a gas stove eliminates smoke exposure in the kitchen, reducing health risks such as respiratory diseases. Alarmingly, 4.3 million annual deaths are linked to household air pollution caused by inefficient cooking methods reliant on solid fuels.

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HomeBiogas systems enable you to experience all the benefits of biogas production and usage within your home. These systems are easy to install, require minimal maintenance, and generate clean, renewable energy and fertilizer. If you're ready to decrease your fossil fuel reliance while producing renewable energy, discover the HomeBiogas product that best aligns with your lifestyle!

Disadvantages of Biogas

1. Few Technological Advancements

A notable drawback in today's biogas sector is the inefficiency of the systems used in production. Current technologies do not simplify the process or lower costs effectively. This limitation continues to hinder large-scale production necessary to meet extensive demand. Although operating biogas plants can satisfy some energy requirements, government investment remains limited in this field.

2. Contains Impurities

Even after refinement and compression, biogas can retain impurities. If used to fuel vehicles, the biofuel risks corroding engine components, leading to higher maintenance expenses. The gaseous blend is better suited for applications such as cooking, heating water, or lighting lamps.

3. Effect of Temperature on Biogas Production

Similar to other renewable energy forms (like solar and wind), biogas generation is affected by climate. The bacteria necessary for waste digestion thrive optimally at around 37°C, requiring additional heat in colder regions to maintain consistent biogas production.

4. Less Suitable For Dense Metropolitan Areas

Industrial biogas facilities are only economically viable where organic raw materials (such as food waste and manure) are readily available. As such, biogas generation tends to be more fitting for rural and suburban locations.

Ready to set up your own small biogas generation system?

Do you believe the advantages of biogas usage for leading a sustainable lifestyle outweigh the disadvantages? We certainly do!

If you’re prepared to take proactive steps toward reducing your carbon footprint through renewable energy production, then the HomeBiogas system is an excellent choice. Visit us to explore our extensive range of products tailored to convert waste into clean energy.

Thank you for engaging with our insights on the pros and cons of biogas. The HomeBiogas team is available for any questions you may have. Don't forget to subscribe to our newsletter for monthly updates on exclusive offers, industry news, sustainability trends, recipe videos, and more!

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