Domestic sewage and vehicle washing sewage treatment and comprehensive utilization method and device

Abstract

The invention discloses a domestic sewage and vehicle washing sewage treatment and comprehensive utilization method and device. The device comprises a vehicle washing device arranged on the ground, and a device arranged on the first layer underground and a device arranged on the second layer underground. The device arranged on the first layer underground comprises a sludge filter pressing device, a mud cake treatment device, a container for containing acid, an acid-base neutralizing machine, a container for containing alkali, a coagulant adding device, a flocculating agent adding device, a multifunctional water quality online analyzer, an activated carbon filter tank and a sand filter tank; and the device arranged on the second layer underground comprises a sewage regulating tank, an acid-base neutralization tank, a coagulating tank, a flocculation tank, a three-stage sedimentation tank and a biochemical aeration tank which are sequentially connected through pipelines. According to the characteristics of vehicle washing water in different stages, the vehicle washing water is respectively utilized in different stages of sewage treatment, the sewage after vehicle washing is repeatedly treated and utilized, the equipment structure is compact, and the investment and operation cost is low; operation and management are convenient, technical requirements are simple, and automatic control can be achieved to the maximum extent.

Description

technical field [0001] The invention relates to a treatment and comprehensive utilization method of domestic sewage and car washing sewage and a device for implementing the method. It is suitable for the treatment and reuse of domestic sewage without grease, such as car washing water, washing water and rainwater, and belongs to the treatment and utilization of sewage. Comprehensive utilization device field. Background technique [0002] With the popularity of cars, the penetration rate of household cars in cities and towns is getting higher and higher, and the water resources consumed by car washing are also rising, wasting a lot of water resources. At present, most of the water for car washing and washing water (for washing clothes, bathing, etc.) is directly discharged and cannot be recycled, resulting in a great waste of water resources. Equipping a set of water treatment equipment not only takes up a lot of space, but also requires a high investment , inconvenient opera...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a car wash sewage treatment device to solve the existing problems of the prior art which take up a lot of space, high investment, inconvenient operation and management, high technical requirements, not easy to realize automatic control, and difficult to popularize application problem

Images