Device and treatment method for treating and recycling car washing wastewater by using diatomite

Abstract

The invention relates to a device for treating and recycling car washing wastewater by using diatomite. A wastewater regulating tank, a first reactor, an aerobic chamber, a second reactor and a disinfection chamber are arranged in the van body; the first reactor is composed of a first reaction chamber and a first clarifying chamber; the second reactor is composed of a second reaction chamber and a second clarifying chamber; a first feeder is arranged above the wastewater regulating tank; the wastewater regulating tank is communicated with the first reaction chamber through a submersible sewage pump on the bottom; the first clarifying chamber is communicated with the aerobic chamber through the top; the aerobic chamber is communicated with the second reaction chamber through the top; the second clarifying chamber is communicated with the disinfection chamber through the top; the aerobic chamber is communicated with the bottom of the second reactor through a reflux pump; a second feeder is arranged above the second reaction chamber; and a sludge dewatering device is communicated with the first reactor and second reactor and also communicated with the wastewater regulating tank. The device can effectively intercept sludge, microbes and heavy metals, and has the advantages of favorable flocculating settling effect, thorough sludge-water separation and high effluent water quality.

Description

technical field [0001] The invention belongs to the technical field of car wash wastewater treatment, and in particular relates to equipment and a treatment method for treating car wash wastewater with diatomaceous earth and recycling them. Background technique [0002] Cars are easily polluted during driving. The dirt adhered to the car body and glass is mainly dust, soot from incomplete combustion of fuel and various particles floating in the air. The dirt adhered to the chassis and wheels is mainly sand, road asphalt, coal tar and burning oil. When they are repeatedly polluted or mixed, they will form highly adherent dirt. The dirt in the engine comes mainly from the fuel. Due to the different types of dirt adhered to various parts of the car, the detergents and cleaning methods used for cleaning are also different. As far as detergent ingredients are concerned, its main components are non-ionic surfactants such as alkylphenol polyoxyethylene ethers and anionic surfact...

AI Technical Summary

Problems solved by technology

[0020] To sum up, the recycling of car wash wastewater has some defects in various processes at present. It is difficult to guarantee the effect of water effluent only by coagulation and sedimentation; the operation cost of sand filter or activated carbon filter adsorption treatment is high; the cost of air flotation products is high; the use of membrane Inflexible operation and poor product adaptability in bioreactor

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