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Upflow anaerobic sludge blanket (UASB) technology, normally referred to as UASB reactor, is a form of anaerobic digester that is used for wastewater treatment. The UASB reactor is a methanogenic (methane-producing) digester that evolved from the anaerobic clarigester .
Comparison of common AD digester technology types. The following is a partial list of types of anaerobic digesters. These processes and systems harness anaerobic digestion for purposes such as treatment of biowaste, animal manure, sewage and biogas generation. [1]
Anaerobic digestion is particularly suited to organic material, and is commonly used for industrial effluent, wastewater and sewage sludge treatment. [77] Anaerobic digestion, a simple process, can greatly reduce the amount of organic matter which might otherwise be destined to be dumped at sea, [78] dumped in landfills, or burnt in ...
An expanded granular sludge bed (EGSB) reactor is a variant of the upflow anaerobic sludge blanket digestion (UASB) concept for anaerobic wastewater treatment. [1] The distinguishing feature is that a faster rate of upward-flow velocity is designed for the wastewater passing through the sludge bed.
The internal circulation reactor (IC reactor) is a form of anaerobic digester. It is primarily designed to treat wastewater. The IC reactor is an evolution of the UASB and EGSB digestion systems. The digester typically produces biogas with a high concentration methane (c80%). In essence the IC to improve digestion rates and gas yields.
Anaerobic digesters for sewage sludge treatment at Arrudas Treatment Plant, Belo Horizonte, Brazil. Anaerobic digestion is a bacterial process that is carried out in the absence of oxygen. The process can either be thermophilic digestion , in which sludge is fermented in tanks at a temperature of 55 °C, or mesophilic , at a temperature of ...