How to treat papermaking wastewater treatment in the paper industry-Jinling Paper Machinery

　　The sewage in the paper industry is very large and the amount is very large. If the sewage is improperly discharged, it will cause great pollution to the environment. So, how do we treat papermaking wastewater? This is what we especially need to pay attention to. Sewage treatment can also turn waste water into useful water. Once improperly treated, our environment will face pollution. At present, the papermaking wastewater treatment in the papermaking industry mainly has the following modes:

　　Sewage lifting pump room

　　The sewage entering the sewage treatment plant is coarsely deleted and enters the sewage lifting pump room. Then it is lifted by the sewage pump to the fore tank of the grit tank. The operation of the pump consumes a lot of energy. It accounts for a considerable proportion of the total energy consumption of the sewage plant. This It is related to the sewage flow and the lift to be increased.

　　Grit tank

　　The function of the grit tank is to remove inorganic particles with a larger specific gravity. The grit tank is generally located in front of the pumping station. In front of the inverted siphon. In order to reduce the wear of inorganic particles on the pump and pipeline, it can also be set in front of the primary sedimentation tank. Reduce the load of the sedimentation tank and improve the processing conditions of the sludge treatment structure. Commonly used grit chambers include advection grit chamber, aeration grit chamber, Dole grit chamber and bell grit chamber.

　　The energy supply in the grit tank is mainly the sand-water separator and the sand suction machine, as well as the aeration system of the aeration grit tank. The power system of the Dole grit tank and the bell grit tank.

　　Biological treatment structure

　　The energy consumption of the sewage biological treatment unit process accounts for a considerable proportion of the direct energy consumption of the sewage plant. The sum of the energy consumption of it and the unit process of sludge treatment accounts for more than 60% of the direct energy consumption of the sewage plant. The aeration system of the activated sludge method The aeration consumes a lot of electric energy. It is basically linked to operation. And the power is large. Otherwise, the better aeration effect will not be achieved. The treatment effect is not good. The aeration machine installed in the oxidation ditch treatment process is also capable Equipment that consumes a lot of energy. Compared with activated sludge method, biofilm treatment equipment has lower energy consumption. But currently it is less used. It is a treatment process that needs to be promoted in the future.

　　Secondary sedimentation tank

　　The capacity consumption of the secondary sedimentation tank is mainly in the suction of sludge and the removal of floating matter indicated by the sewage. The energy consumption is relatively low.