Integrated Domestic Sewage Treatment Equipment

Process overview of integrated domestic sewage treatment equipment

Domestic sewage treatment equipment is based on AA/o process to increase the pre-anoxic zone, the aerobic zone to set up suspension filler, optimize the sludge return system and nitrification liquid return system layout structure, the activated sludge process and biological contact oxidation method to fully combine the advantages, while reducing COD at the same time to enhance the effect of nitrogen and phosphorus removal.Anoxic conditions for the anoxic zone fully remove the nitrate in the inflow backflow of sewage and sludge and oxygen, guarantee the anaerobic zone strictly anaerobic environment, made in anaerobic phosphorus accumulating release phosphorus efficiency greatly, make sure it's in the p uptake efficiency of aerobic pool corresponding got fully promoted, through nitration fluid backflow to anoxic denitrification ability, strengthen reactor pool further integrates sewage device's ability to efficiently remove nitrogen and phosphorus, at the same time, through efficient phosphorus removal filter is expected to further improve the ability of phosphorus removal.

A certain amount of suspended carrier was added into the aerobic pool to improve the biomass and biological species of the reactor, so as to improve the treatment efficiency of the reactor.Since the packing density is close to water, when aerating, it is in a completely mixed state with water, and the environment for microbial growth is gas, liquid and solid.The impact and shear action of the carrier in the water makes the air bubbles finer and increases the utilization rate of oxygen.In addition, each carrier has a different biological species inside and outside, some or facultative bacteria grow inside, and the outside is a good bacteria, so each carrier is a micro-reactor, so that the nitrification reaction and denitrification reaction exist at the same time, the master of optimization improved the treatment effect.

Soft biological packing is used in the anoxic tank. The soft biological packing has the advantages of large specific surface area, large biomass dapeng, variable void and no blocking.In order to meet the requirements of better effluent quality, an advanced treatment process package can be added according to the requirements. The process package is: dosing system + precision filter with internal water inlet.

Sewage after grille to remove large suspended solids their first to adjust the pool for homogeneous cut processing, then the lift pump up to the integration of sewage wastewater treatment equipment, in turn, after preliminary anoxic zone, anaerobic, anoxic zone anaerobic-aerobic zone, physico-chemical treatment after implementation spate separation by precipitation, the water eventually by uv sterilizer standards after disinfection.The mixed solution is refluxed by air lift or pump in the aerobic area to the anoxic area. Part of the sludge in the sedimentation area is refluxed to the pre-anoxic area for recycling. The remaining sludge is discharged into the sludge storage tank.