... , high efficiency, less sludge 2. Automatic control 3. Low cost,low noise Sewage Treatment Plant EquipmentI. ... water quality is stable without producing sludge swell.3. The reaction tank utilizes the biological touch ... and hospital.2. Residence community, village and town.3. Station, air port, sea port wharf and ship ... that is COD≤100,BDO≤60mg/L,SS≤30mg/L.3. Responsible for the duty training of the ...