Machining, auto parts manufacturing, production and processing and other industries will use the process of spraying and coating in the production process, which will produce a large amount of paint wastewater, degreasing phosphating, surface cleaning wastewater, and the direct discharge of these wastewater will cause certain pollution to the surrounding environment. The COD of spraying wastewater is high, and it is difficult to achieve the standard discharge. Therefore, for the treatment of fine spraying and coating wastewater, Protection needs to build a spraying wastewater treatment system project with targeted needs according to the specific situation of each production enterprise and the discharge standards of local industrial wastewater, so as to ensure the efficient and stable operation of the wastewater treatment station after completion.

Protection Technology Co., Ltd. is a foreign-invested environmental protection enterprise from Netherlands, the founder of the company has more than 38 years of experience in the European environmental protection industry, and has served many Fortune 500 companies including Mercedes-Benz, Bosch, Corning, Geely Automobile, Baosteel, Kohler Kitchen and Bathroom, Deli, Gree, Fangtai and so on. Environmental protection equipment is widely used in electronics, semiconductor, automobile manufacturing, electroplating, new energy, new materials, precision machining, fine chemicals and other industries.

As a professional industrial wastewater treatment environmental protection equipment engineering technology company specializing in providing one-stop solutions for wastewater reuse and zero discharge, Protection analyzes spraying wastewater treatment technology methods for spraying enterprises, provides targeted customized spraying wastewater treatment technology solutions, and builds spraying wastewater treatment environmental protection equipment projects with stable operation and standards.

For spraying wastewater treatment, protection production wastewater is collected through pipelines and then removed oil slicks through the grease trap regulating tank, and the water quality and quantity are adjusted to ensure the stability of the follow-up treatment effect and reduce the load impact on the subsequent ISPI process. The effluent of the regulating tank is lifted into the batch physicochemical reaction tank by the pump, and the liquid alkali is added in the tank to adjust and control the PH, and then PAC is added for coagulation reaction, and then a certain amount of PAM is added. Through the Fenton process, it enters the second stage of protection spraying wastewater treatment process, carries out biochemical reactions, removes organic matter, and discharges up to the standard. So as to achieve the purpose of stable emission standards. For spraying enterprises with strict requirements, Protection adopts the advanced treatment technology of spraying wastewater, and reuses the spraying wastewater for production after advanced treatment, so as to achieve zero discharge of spraying wastewater.

Core process: Fenton hydrolysis acidification, biochemical system

Standard discharge: regulation system, filtration system, coagulation and flocculation, evaporation system, ceramic membrane, biochemical, air flotation

Reclaimed water reuse: regulation system, filtration system, coagulation and flocculation, evaporation system, ceramic membrane, biochemical, air flotation, RO, ultrafiltration

Zero emission: conditioning system, filtration system, coagulation and flocculation, evaporation system, ceramic membrane, biochemical, air flotation, RO, ultrafiltration

Spraying wastewater treatment difficulties
Pickling phosphating is the main source of sewage in the spraying industry, affected by the production process, the pH of pickling phosphating sewage changes greatly in the treatment process, and the water quality is unstable.

Ph fluctuates greatly, the composition is complex, and the phosphate content is high