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Which chemical plants discharge acid wastewater

Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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Which chemical plants discharge acid wastewater
Category 2 - Mechanical trade waste
Category 2 - Mechanical trade waste

Category 2 - Mechanical trade waste. The wastewater from mechanical workshops can contain contaminants such as fuels, solvents, heavy metals, battery acids, flammable substances, caustic cleaners, coolants, paints, fillers, grit and residue. If not properly managed, this wastewater can pollute our waterways, damage our sewer systems and wastewater ...

Comprehensive utilization of acidic wastewater from 33 ...
Comprehensive utilization of acidic wastewater from 33 ...

A novel purification method enabled the waste sulfuric acid to be reused repetitively for four or five times in the hydrazobenzene–benzidine transformation step, resulting in a 75% reduction in the consumption of sulfuric acid, minimization of wastewater discharge and significant economic, environmental and social benefits. 2 EXPERIMENTAL 2.1 Experimental methods The acidic wastewater, provided by the DCB …

7 Mechanical servicing workshop final
7 Mechanical servicing workshop final

• ,discharged, to an evaporation basin with prior approval of the Commission or DEP. l. Under no circumstances should the ,wastewater, treatment system be allowed to overflow to open ground or to an off-site drainage system without the prior approval of the Commission or DEP. 5.3 ,Workshop, operations a. All activities associated with vehicle repairs and

14 Industrial Wastewater Treatment Principals and Ideas
14 Industrial Wastewater Treatment Principals and Ideas

The waste water discharged during washing is dark brown, called black water. The concentration of pollutants in black water is very high. The BOD is as high as 5-40g/L, which contains a lot of fiber, inorganic salt and pigment. The wastewater discharged from the bleaching process also contains a large amount of acid and alkali substances.

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