Buried sewage treatment equipment of Dongguan electroplating sewage treatment air flotation integrat

The mixed sewage is treated by the grid, lifted by the anti-corrosion pump and enters the neutralization reaction tank through the rotameter, which is equipped with pH meter and mixer, When adding alkali to the reaction tank (CAO), each metal generates corresponding hydroxide precipitate under a certain pH value
According to our previous experience in the electroplating sewage industry, the best pH value of the mixed sewage precipitation is 9
5
The effluent after reaction enters the intermediate water tank, and then after sand filtration, the pH of the effluent is still alkaline
Therefore, it can be discharged up to the standard after acid regulation in the pH regulation tank
Pressure filtration The sludge after is transported out for centralized deep burial or brick making or metal ion recovery or other harmless treatment