Traditional Culture Encyclopedia - Traditional festivals - What are the normal operation steps of sludge anaerobic digester?
What are the normal operation steps of sludge anaerobic digester?
The five operations of mud feeding, mud discharging, supernatant discharging, heating and stirring cannot be carried out at the same time, and the different operation sequences will have a certain impact on the digestion effect. How to ensure the best operation effect and determine the reasonable operation sequence needs to be learned from actual experiments. Generally, a single-stage sludge digester with overflow sludge discharge and internal steam heating is adopted, and its reasonable operation sequence is sludge feeding, sludge discharge, supernatant discharge, heating and stirring. However, when using overflow-free sludge discharge and external heat exchanger for heating, the reasonable operation sequence is supernatant discharge, sludge discharge, sludge feeding, heating and stirring. In addition, the shorter the cycle of the five operation links, the closer to continuous operation, and the better the digestion effect. When manual operation is adopted, the operation period is generally 8h; When fully automatic control operation can be realized, the operation period can be 2-4 hours.
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