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Oxidation of electroplating acidic wastewater by hydrogen peroxide

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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Oxidation of electroplating acidic wastewater by hydrogen peroxide
Removal of Manganese(II) from Acid Mine Wastewater: A ...
Removal of Manganese(II) from Acid Mine Wastewater: A ...

There are several reasons: (1) Mn ore ,wastewater, is more acidic, and its Mn(II) concentration is much higher than that of groundwater or artificial ,wastewater,, leading to high toxicity to MnOB; (2) oxidation of coexisting ferrous ion in Mn ore ,wastewater, resulting from pyrite dissolution results in oxidizing by O 2 leading to insufficient DO concentration to support biological oxidation; (3) compared to acidic soil, nutrient sources in Mn ore ,wastewater, …

Degradation pathway and microbial mechanism of high ...
Degradation pathway and microbial mechanism of high ...

sulfur-containing cyanide ,wastewater, treatment. aCollege of Resources and Environmental Engineering, ,Guizhou, University, Guiyang, ,Guizhou,, 550025, China. E-mail: ycli3@gzu.edu.cn bGuizhou Jinfeng Gold ,Mine, Limited, Qianxinan Buyi and Miao Autonomous Prefecture, Qianxinan, ,Guizhou,, 550025, China

Heavy metal pollution and human health risk assessment at ...
Heavy metal pollution and human health risk assessment at ...

The Wanshan district of Guizhou Province has a long history of mercury mining and smelting. Previous studies have been carried out on heavy metal (HM) pollution in the soil around Wanshan (such as in urban and farmland areas), but these studies have not been conducted at mercury smelting sites.

High Flocculation of Coal Washing Wastewater Using a Novel ...
High Flocculation of Coal Washing Wastewater Using a Novel ...

Coal washing ,wastewater, was provided by a coal washery plant in Liupanshui City, ,Guizhou, Province, China, and its pH ranged from 7.5 to 8.5. Anionic polyacrylamide (APAM, Mw 3.0 × 10 7 Da) was purchased from the Erli Environ-Technology (Shanghai) Co., Ltd., China.

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