Multi-field application

Pickling phosphating wastewater treatment

Wastewater type:Pickling phosphating wastewater

In the machining production, pickling phosphating process is common, as a metal protection process, has a certain corrosion resistance, oxidation resistance effect, also a process on the metal coating, it has a important value.

      In the machining production, pickling phosphating process is common, as a metal protection process, has a certain corrosion resistance, oxidation resistance effect, also a process on the metal coating, it has a important value.However, after the pickling phosphating process of the metal, it will inevitably produce the corresponding wastewater, which has a high inorganic salt content and serious pollution, usually containing a small amount of degreasing liquid, acid washing liquid, alkali washing liquid, phosphating liquid and other cleaning wastewater and the main pollution source phosphate, zinc and a small amount of emulsified oil and heavy metals, and the pH is low, causing certain harm to the environment.

      Because pickling phosphating wastewater is harmful to the environment, and the general water amount is small, it is urgent to replace the old treatment process with a new generation of pickling phosphating wastewater treatment process to meet the requirements of energy saving and environmental protection. Zebang Environmental Protection according to the characteristics of wastewater quality and quantity, launched a new generation of integrated acid phosphating wastewater treatment equipment, integrating the skidding device of neutralization, coagulation, flocculation, precipitation, filtration and other units in one, to achieve the multiple needs of good effluent quality, small footprint, convenient transportation and installation, and simple operation and maintenance.


Process flow chart of pickling phosphating wastewater treatment





☆The removal rate of pollutants is high, and the effluent is stable and up to standard.

☆The system runs stably and the operating cost is low.

☆The process produces less sludge and the sludge treatment cost is low.

☆The system has high degree of automation and less operation and maintenance.

☆Integrated mobile, fast and convenient transportation installation.