Explore Other Industries
Our Clients
Industry Challenges
Sewage treatment plants (STPs) and effluent treatment plants (ETPs) generate digester biogas as a byproduct of anaerobic sludge treatment, rich in methane and hydrogen sulphide. These are the core obstacles wastewater operators face:
Sludge digester gas at STPs and ETPs often carries high hydrogen sulphide levels that corrode downstream equipment and demand dedicated scrubbing before use or disposal.
Fluctuating influent load and digester health at municipal and industrial plants shift gas volume and methane content, complicating stable flaring and scrubber sizing.
STPs and ETPs must safely destroy excess or off-spec digester gas during maintenance and upset conditions without disrupting live treatment operations.
Most gas handling upgrades happen inside operating municipal and industrial plants, leaving little room for downtime during installation and commissioning.
The CRA Edge
Flares delivering safe biogas disposal at MCGM's 500 MLD Worli WWTF in Mumbai.
Scrubbers cutting H₂S from 10,000 ppm to under 100 ppm at Mumbai's Dharavi STP.
Retrofit-ready systems delivered for Delhi Jal Board and Adani's Naini STP.
Upgrading systems turn STP and ETP digester gas into sellable CBG.
.webp)
