AD WASTEWATER TREATMENT  EXPERTISE

• Waste-to-Energy

  By utilizing wastewater sludge as a feedstock, anaerobic digestion can greatly reduce the amount of organic waste that would otherwise be incinerated or disposed of in landfills—with produced waste gas converted to clean, renewable biogas.
  
  Biogas can be utilized for both power and heat by employing microturbines, reciprocating engines, combustion turbines, or fuel cells along with the optional addition of heat recovery units to capture and leverage waste heat.
  
  In some cases, high-output facilities produce enough gas to deliver excess generated power to the grid.
  
  With additional upgrading, biogas can be converted to methane and deposited as renewable natural gas (RNG) into natural gas pipelines, to achieve additional revenue streams.

  
  

   

• Technology Integration Experts

  ESI’s technical proficiency in gas upgrading includes integration expertise spanning a broad range of gas treating, processing and separation technologies including:
  
  ● Activated Carbon
  ● Adsorption
  ● Amine
  ● Biological scavengers
  ● Bulk media removal
  ● Membrane
  ● Pressure swing adsorption (PSA)
  ● Selexol (Physical Adsorption)
  ● SulfaTreat/H2S Removal
  ● Thermal swing adsorption (TSA)
  ● Water wash
  ● More

  
  

   

• Experience Sets Us Apart

  ESI has delivered facility-engineering, controls integration, operations, and maintenance (O&M) services for a broad range of biogas utilization facilities at anaerobic digester sites nationwide.
  
  We understand the unique challenges of wastewater AD biogas utilization projects—particularly with regards to integration of the biogas utilization facility with the digester to achieve maximum capacity operations.

  

   

• Attention to Detail

  ESI’s outstanding ability to deliver seamless integration of multiple technologies (mechanical, electrical, and controls) supplied by multiple equipment vendors enables us to produce a unified operating facility—designed to maximize safety, performance, and up-time
  
  ESI is often able to deliver significant savings in facility costs through its advanced 3D design capabilities and meticulous attention to detail. .

  

   

• Best-in-Class Solutions

  While ESI is technology agnostic, maintaining relationships with virtually all major technology suppliers in the industry, our clients can also benefit from our new partnership with TransTech Energy.
  
  Offering nationwide access to over 300,000 square feet of fabrication facility space and industry-leading custom vessel and equipment fabrication and packaging, TransTech supports our balance of plant (BoP) fabrication requirements for faster projects coupled with superior in-house quality control.