Digesters & Biogas Systems
The tanks, mixers, and gas-handling equipment that turn sludge into usable biogas.
Egg-Shaped & Cylindrical Digesters
Enclosed tanks that provide anaerobic detention time, heating, and mixing for volatile solids destruction.
Digester Mixing Systems
Gas mixing, mechanical mixers, or pumped recirculation keeping solids suspended and heat evenly distributed.
Sludge Heat Exchangers
Maintain the 95-98°F mesophilic setpoint by warming feed and recirculated sludge.
Biogas Handling & CHP Systems
Gas storage, scrubbing, and combined heat and power engines that turn biogas into usable energy.
Thermophilic Digestion
Higher-temperature digestion (120-135°F) offering faster pathogen destruction and shorter detention time.
Digester Foaming Control
Foam accumulation inside a digester can overflow gas piping and create serious safety and process risk.
Digester Sizing & Loading Rate
Volatile solids loading rate (lbs VS/day/1,000 cu ft) is the primary check confirming a digester isn't overloaded.
Digester Startup & Seeding
Bringing a new or emptied digester back online requires careful, gradual loading to avoid immediate failure.
Class A/Class B Biosolids Stabilization
Digestion process parameters determine whether resulting biosolids meet Class A or Class B regulatory standards for land application.
Digester Cleaning & Grit Removal
Periodic tank cleaning removes accumulated grit and scum that reduce effective digester volume over years of operation.
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