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Biogas Systems Associated Gas

Wastewater Biogas Treatment Biogas Systems

Wastewater treatment facilities produce methane gases as byproducts of the natural decomposition of solid waste material in anaerobic digestion processes. The methane concentrations from these digesters may be as much as 65-90%. These gases commonly referred to as biogas, can be used as an alternative to natural gas. Significant amounts of energy are available to wastewater plants through the conditioning of their available biogases.

Wasterwater DigesterWastewater treatment facilities have historically flared methane gases, resulting in undesirable increased carbon emissions. Ever emerging environmental laws, at both the state and federal levels, now offer the waste water industry challenging regulations for the collection and disposal of these gases.  Financial benefits and improved community relations provide the wastewater industry with multiple incentives to employ biogas conditioning systems to manage these gases and create clean, renewable energy.

Currently, wastewater treatment methane gas is commonly used for internal process heat in the wastewater digesting process, generating power and firing boilers. This untreated gas contains impurities such as; sulfur, chlorine, silicon and moisture. Equipment such as boilers, engines, fuel cells and turbines are susceptible to increased damages, increased maintenance costs and shorter life spans when these impurities are present. Suppliers of the aforementioned power generation equipment have very stringent inlet gas purity requirements. Western Biogas Systems provides wastewater facilities with gas conditioning systems which meet these requirements.

Conditioned methane gas can be used to power internal operations and excess power may be sold back to the grid.   Biogas conditioning for these power generation applications involves the removal of Siloxanes, H2S and moisture (dehydration). Biogas conditioning for pipeline injection applications requires further purification involving CO2 removal. This gas may then be converted to valuable pipeline gas, providing additional financial opportunities.  Cogeneration is also a profitable option.

Western Biogas Systems consults with wastewater teams to explain the biogas conditioning concepts and designs a biogas conditioning system specific to each plant’s needs. The most cost effective system is engineered and then fabricated to those unique specifications. Western Biogas Systems provides ongoing project consulting and directing. Additionally, project start-up services, gas sampling, maintenance plans and performance guaranties are also available.

Let Western Biogas Systems be your partner in finding solutions for converting wastewater digester gases to clean reusable energy. Together, we can produce a system which provides for the reduction of carbon emissions, reduced equipment replacement costs, increased revenue potential and positive community relations.