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What kind of alkali is used to treat 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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What kind of alkali is used to treat acid wastewater
The effectiveness of calcium hydroxide and sodium ...
The effectiveness of calcium hydroxide and sodium ...

for reducing ,fluoride, in hazardous ,wastewater, Jenny Anna Margaretha, Candra Irawan, Poppy Sri Lestari, Azkiyah Rahma and Erizal Tanjung Abstract The use of coagulant in Hazardous ,wastewater treatment containing Fluoride, can decrease the pH ,of waste water,, so calcium hydroxide and sodium hydroxide compound has been added in the process which

Wastewater treatment for semiconductor production
Wastewater treatment for semiconductor production

Before waste water can be discharged or reused, hydrofluoric acid and its salts must be removed. The waste water is treated by precipitation and flocculation. The fluoride contained is precipitated as calcium fluoride by the addition of lime milk or calcium chloride.

Semiconductor Wastewater Treatment - Ovivo
Semiconductor Wastewater Treatment - Ovivo

Fluoride discharge limit >10 ppm. Some examples of Ovivo semiconductor wastewater treatment solutions: Treatment of CMP and Backgrind Water. CMP is an essential process in semiconductor fabrication. The resultant wastewater can be treated by flocculation and sedimentation to …

Wastewater Treatment during PCB Fabrication Process | PSPCB
Wastewater Treatment during PCB Fabrication Process | PSPCB

This process produces copper-,containing wastewater,, sulfuric ,acid, mist. (10) Soldermask (Green): Its function is to prevent bridging during wave soldering, improve soldering quality and save solder. It is also a permanent protective layer for printed boards that protects against moisture, corrosion, mildew and mechanical abrasion.

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