83results about How to "Water quality up to standard" patented technology

The present invention relates in general to municipal wastewater treatment, and in particular, to a new biological fluidized bed process with high concentration powder carriers used for the treatment of municipal wastewater, wherein the process comprises: flowing the wastewater through a coarse screen and a lifting pump firstly, lifting to a fine screen and grit chamber, and then entering a HPB biochemical tank; dividing the HPB biochemical tank successively into an anaerobic zone, an anoxic zone, an aerobic zone and a concentrated separation zone along the flow direction of the wastewater, adding a compound powder carrier to the anaerobic zone, the anoxic zone and the aerobic zone respectively, and stirring and mixing into a mixture; flowing the mixture into the concentrated separation zone and concentrating and separating, returning the concentrate back to the anaerobic zone; discharging the supernatant from the concentrated separation zone and successively transporting through a high-efficient clarification tank, a filter tank and a disinfection tank to be purified; transporting the discharged excess sludge to a cyclone separation and recovery system; the separated compound powder carrier will be recycled to HPB biochemical tank. The HPB process in the present invention is a highly integrated municipal wastewater treatment process, in which only one lifting operation is required. In addition, it has a small land area, a low operating energy consumption and a high treatment efficiency.

The invention discloses a seasonal high-turbidity raw water treatment process. Raw water enters a settling pond for sedimentation after entering a pre-sedimentation, concentration and reuse pond for pre-sedimentation; after the water obtained through sedimentation enters a filter pond to be filtered and enters a clean water pond to be regulated and stored, the water is pumped into a municipal pipe network after being pressurized through a secondary pump house; sludge discharged out of the pre-sedimentation, concentration and reuse pond is received into a balance pond to be stored; the discharge sludge enters a dewater room to be dewatered, and dry sludge obtained through dewatering is transported outwards to be processed, and filter liquor is drained into a concentration mass-energy conversion pond. The process can adapt to different raw water situations and can meet different running requirements; the sludge discharge and water treatment process and the dewatering process are combined together; meanwhile, the process adapts to the seasonal high-turbidity and general low-turbidity working condition, secondary processing is conducted on concentration pond supernatant and dewatering filter liquor which are prone to exceeding the emission standard in the industrial wastewater concentration and dewatering process through the concentration mass-energy conversion pond, the occupied area is saved by highly using the processing capacity of buildings, and the effects of discharging water, obtained in the water purification process, in an up-to-standard mode and converting organic matter in industrial wastewater into biological energy sources to be further recycled are achieved.