batchwise activated sludge treatment system
The paper introduces the level instruments and describes the realization of the level automatic control by means of ultrasonic level meter and level regulator in sludge treatment engineering.
On the basis of the investigation results of full-size municipal sewage treatmentplant, the energy-saving of sludge anaerobic digester and solid recovery rate of sludge treatment facilities have been studied in the paper with some practical recommendation and countermeasures.
It has also been constructed in two phases and is equipped with a Sequenced Batch Reactor plant and, soon, with a sludge treatment facility (digesters/centrifuges).
The 3R principles of circular economy should be obeyed in the selection of sludge treatment and disposal methods.
The sludge thermal drying process is an efficient technology for achieving reduction, innocuity and stabilization, which has been an important way of sludge treatment.
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