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Is chemical acid wastewater hazardous

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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Is chemical acid wastewater hazardous
Remediation of heavy metals in drinking water and ...
Remediation of heavy metals in drinking water and ...

wastewater containing, high concentrations of heavy metals to receiving water bodies has serious adverse environmental effects. Their occurrence and accumulation in the environment is a result of direct or *Corresponding author. E-mail: akporbo@tut.ac.za. Tel: +27(0) 12 382 3046. Fax: +27(0) 12 382 3071.

Sources and Treatment of Wastewater in the Nonferrous ...
Sources and Treatment of Wastewater in the Nonferrous ...

Industrial Sources of ,Acidic Wastewater Containing, Metal 18 6. ... aluminum silver arsenic chromium copper iron mercury lead ,nickel, selenium tin cadmium manganese zinc ----- Concentration ranges reported ... These resins may be either ,strongly acidic,, weakly ,acidic,, ,strongly, basic, or weakly basic, ...

Heavy Metals in Contaminated Soils: A Review of Sources ...
Heavy Metals in Contaminated Soils: A Review of Sources ...

Nickel, can also end up in surface water when it is a part of ,wastewater, streams. The larger part of all Ni compounds that are released to the environment will adsorb to sediment or soil particles and become immobile as a result. In ,acidic, soils, however, Ni becomes more mobile and often leaches down to the adjacent groundwater.

BIOSORPTION OF Cr(VI) FROM SYNTHETIC WASTEWATER …
BIOSORPTION OF Cr(VI) FROM SYNTHETIC WASTEWATER …

Wastewater, was collected from after the rinsing stage of a ,nickel,/chromium electroplating unit located in ... were carried out in 250 ml Erlenmeyer flasks ,containing, 100 ml of Cr(VI) solutions at the ... Complete removal of Cr(VI) is shown under ,strongly acidic, conditions (pH<3.0), whereas negligible removal was observed when the pH ...

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