Specialized Solutions for Wastewater Treatment

Innovative technologies for high strength wastewater, nutrient removal and VOC control.

Envirogen in the Power Industry

Leading-edge technology & process development expertise

The environmental challenges in today’s power generation facilities are more complex and costly than ever before. Envirogen offers a range of environmental and process solutions for water management that can help meet environmental goals and reduce costs.

Meeting Emerging Challenges

With new regulations in place covering Flue Gas Desulfurization (FGD) Wastewater and Coal Combustion Residuals (CCRs), Envirogen has leading-edge solutions for treating metals, selenium, nitrate and other contaminants.

FGD Wastewater

Today, Envirogen Technologies offers the most reliable biological technology for treating FGD wastewater: The Fluidized Bed Reactor (FBR). In addition to delivering the most consistent removal of selenium and other metals, the FBR technology offers the benefits of greater system reliability and significantly lower costs than other commercially-available technologies. Envirogen has the broadest background and installation-base of biological treatment systems for both selenium and other oxyanions in the environmental industry. This track record of designing, building and operating biological systems offers the engineering community and power utilities a strong partner in developing reliable, least-cost solutions to managing FGD wastewater treatment operations under the new ELGs.

To learn more about Envirogen's treatment options for FGD wastewater, download our whitepaper here.

CCR Management Services

In the area of CCR management, Envirogen offers a modularized solution for meeting water discharge requirements during coal ash dewatering and pond closure projects. Our “drop in” Advanced Metals Removal System (AMRS) featuring Zero Valent Iron technology can enhance traditional physical/chemical metals removal systems by adding the capability of removing selenium downstream. A recent validation study conducted on coal ash pond water demonstrated the performance of the AMRS to remove selenate from 200-250 μg/l down to below 1 μg/l.

The results speak for themselves:

(1) The Envirogen Advanced Metals Removal System (AMRS) removed arsenic and selenium consistently to non-detect values, even at elevated concentrations and range of pH.

(2) Envirogen’s treatment system allows Power plants to meet EPA and more stringent local regulations for removal of lead, copper, thallium, arsenic and selenium.

(3) Treated water can be safely discharged to local waterways with no toxicity impact.

To learn more about Envirogen's pilot success in CCR Ash Pond Water, download our new Case Study here.

For sites where the aquifer has been impacted, Envirogen offers groundwater extraction and treatment systems for hydraulic control, removal of arsenic and other metals, O&M services and groundwater monitoring. For landfill leachate projects, Envirogen combines our metals treatment expertise with our FGD solutions to create a complete package for this often complex water. Envirogen has extensive experience treating selenium, arsenic, mercury, chromium, lead, thallium, iron, manganese, aluminum, vanadium, cadmium, copper and other metals.

Design, Build, Installation & Operations for your Power Plant

Envirogen has over 20 years of turnkey design, installation and O&M experience with dewatering and groundwater remediation projects at more than 100 sites. Our integrated O&M offering includes engineering and technical services as important components. This commitment of technical expertise in support of O&M allows us to adapt to changing conditions for maximum reliability.

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