The treatment of automobile coating wastewater has become a major problem in today's sewage treatment projects, and it is urgent to be treated. After years of exploration and engineering practice, it has been found that it is cost-effective to choose automatic brush filters to treat automobile coating wastewater.
The wastewater generated in the coating process mainly includes pre-treatment wastewater such as degreasing, pickling and phosphating surface conditioning, electrophoretic coating wastewater, and spraying wastewater when spraying primer, middle and top paint. The components of each wastewater are messy and the concentrations are different, which makes the treatment difficult.
Except for the continuous overflow of part of the washing water from the water tank, the waste water or waste liquid generated in each process is mostly intermittently discharged. After mixing the various waste waters, high-turbidity coating waste water is formed. The quantity and quality of the waste water are changed within a day It is very large and has no rules to follow. The pollutants in the wastewater are messy, contain a variety of toxic substances, have high concentrations, and have poor biochemical properties.
One of the more promising methods for treating automotive coating wastewater is the fully automatic brush filter. Because automobile coating wastewater contains a large amount of phosphate and other biochemical substances that cannot be completely removed or difficult to remove, it is necessary to rely on a fully automatic brush filter for treatment. After the wastewater is pretreated with a fully automatic brush filter, part of the remaining microbial organisms After drainage from the system, the water quality is purified and the water quality is improved.
The automatic brush filter has the characteristics of stable operation effect, water resistance and organic load impact, sensitive operation, simple structure, convenient operation and protection, etc. Therefore, the SBR process is widely used in automobile coating wastewater.
In summary, the treatment by the fully automatic brush filter treatment process makes the automobile coating wastewater treatment process more complete and the treatment effect more stable.