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Taking the acid wastewater from a mine as an example

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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Taking the acid wastewater from a mine as an example
Fenton pre-treatment of rice straw with citric acid as an ...
Fenton pre-treatment of rice straw with citric acid as an ...

quent ,wastewater treatment, as well. In this study, ,citric acid, was used as iron chelate to enhance Fenton reagent pretreatment of rice straw. The conditions of Fenton oxidation with ,citric acid, as iron chelate for enhancing rice straw pretreatment were rst evaluated. Then, the compo-sition and structural changes of lignocellulose were described.

Using Citric Acid to reduce pH - Water treatment ...
Using Citric Acid to reduce pH - Water treatment ...

In order to calculate the amount ,of citric acid,, you will need an analysis of the water. That is because ,citric acid, will react with the buffers that are present in the water. Pure water has no buffers. The typical water contains various minerals that the water has dissolved.

Wastewater treatment with chitosan
Wastewater treatment with chitosan

Chitosan ,treatment, with ,citric acid, or sulfuric ,acid, produced regenerated chitosans. There are many applications for these chitinous materials including use in agriculture, food processing, medicine, cosmetics, and biotechnology. The textile industry uses large amounts of water for dying and washing. Textile ,wastewater, is generally alkaline

Treatment of the real boiler cleaning wastewater in an ...
Treatment of the real boiler cleaning wastewater in an ...

A single chambered air cathode anaerobic fluidized bed microbial fuel cell (AFB‐MFC) was simultaneously used to dispose of the real boiler cleaning ,wastewater, (BCW) containing a high concentration ,of citric acid, and to generate renewable energy.

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