ECFF (electric-flocculation+electrolytic-flotation+filtration) type integral electric-flocculation car-washing waste water treatment device

Abstract

The invention discloses an ECFF (electric-flocculation+electrolytic-flotation+filtration) type integral electric-flocculation car-washing waste water treatment device, comprising a casing, and an electric-flocculation reaction chamber, an electrolytic-flotation chamber and a filtration chamber which are communicated in sequence and arranged inside the casing. The electric-flocculation reaction chamber is arranged between a first side wall of the casing and a first partition plate, and an electric-flocculation device is arranged inside the electric-flocculation reaction chamber; the electrolytic-flotation chamber is arranged between the first partition plate and a second side wall of the casing, and an electrolytic chamber, a flotation chamber and a sewage discharging device are arranged inthe electrolytic flotation chamber; the filtration chamber is arranged between the second partition plate and the second side wall of the casing, and a filtration device is arranged in the the filtration chamber. The whole treatment device has comprehensive design of functional structure and thus its floor area and manufacturing cost can be reduced greatly; with cooperation of the electric-flocculation device, the electrolytic-flotation device and the filtration device, waste water can be sterilized, cleaned and purified once the device is connected with current, and thus, secondary pollutionis prevented effectively, treatment cost for recovery of waste water in the prior art is lowered, and car-washing waste water recovery treatment is much economical and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of car wash wastewater treatment and recovery, in particular to an ECFF (electrocoagulation EC+electrolysis air flotation EF+filter AF) type integrated electrocoagulation car wash wastewater treatment device and a treatment process. Background technique [0002] Population growth, economic development and over-exploitation of resources have put a lot of pressure on the environment: water resources are seriously lacking, and water pollution is increasing day by day. With the improvement of people's living standards, the number of cars owned by units and families is also increasing, which will inevitably lead to a large consumption of car washing water. For cities, it will exacerbate the contradiction of water shortage. According to statistics, cleaning a small car requires 0.06-0.10m of water 3 The amount of water used for car washing in a large and medium-sized city can be used by 60,000 people for one year...

AI Technical Summary

Problems solved by technology

[0006] The existing common sewage treatment processes generally include: (1) The traditional treatment process of sedimentation-oil removal-filtration is suitable for treating ordinary car wash sewage, but it has the disadvantages of large equipment size and large floor space; (2) Biological contact oxidation Pond-membrane filtration-recirculation structure electrolyzer and other technologies are suitable for treating oily car wash sewage, which has strict requirements on the treatment process conditions and high treatment process costs; (3) coagulation-sedimentation (adsorption)-filtration-disinfection or advection sedimentation- Coagulation-secondary air flotation-filtration-disinfection and other processes are suitable for most sewage and wastewater treatment, but they need to be highly dependent on the addition of coagulants and disinfectants to play a role in flocculation and disinfection, which is likely to cause secondary pollution; and each Functional device components are arranged independently and dispersedly, occupying a large area, the function and operation of each device component are low in coordination, and the operation and processing efficiency is low

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