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What is hydraulic retention time anaerobic digestion? |
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Answer» There are two significant RETENTION TIMES in an anaerobic digester. These are solids retention time (SRT) and hydraulic retention time (HRT). The SRT is the average time that BACTERIA (solids) are in the anaerobic digester. The HRT is the time that the wastewater or SLUDGE is in the anaerobic digester. |
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