Processes for treating sludge from a raw sludge stream and fluidic materials for biological treatment in multiple stages of an affluent material for intermittent treatment in the sequence of liquid discharges for wastewater management for automatic control of an anaerobic system and an anaerobic-aerobic multi-stage system and for biological conversion of materials into a double mud system and apparatus and system for water treatment

摘要

A multistage biological treatment method receives material to be treated, and passes the material through multiple reactors. From each reactor some of the contents are removed and separated, and the biomass is moved into the previous stage while the material to be treated and metabolic products are moved into the succeeding stage. Thus, the predominant flow of the biomass is upstream and the predominant flow of the material to be treated in downstream. Preferably, alternate reactors are anaerobic, and alternate reactors are aerobic, so the material is alternately subjected to anaerobic, then aerobic, environments. The process can be improved by applying physical, physical-chemical, chemical, and biochemical actions to the treatment system.