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Main methods of treating 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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Main methods of treating acid wastewater
Nitrate addition improves hydrogen production from acidic ...
Nitrate addition improves hydrogen production from acidic ...

Experimental results showed that with an increase of nitrate addition from 0 to 362 mg/L, the maximal hydrogen production from acidic (pH 5.5) fermentation of WAS obviously increased from 12.6 ± 0.5 to 19.3 ± 0.9 mL per gram volatile suspended solids (VSS).

Simultaneous removal of nitrate hydrogen peroxide and ...
Simultaneous removal of nitrate hydrogen peroxide and ...

Abstract. The zero-valent iron (ZVI) ,wastewater, treatment has been applied to simultaneous removal of ,nitrate,, hydrogen peroxide and phosphate in semiconductor ,acidic, wastewaters. The simultaneous removal occurs by the reactions performed due to the sequential transformation of ZVI under the ,acidic, …

Maintaining spa water quality is easier than you think ...
Maintaining spa water quality is easier than you think ...

Calcium hardness, TDS, metals, and cyanuric ,acid, (if used) should also be monitored, though less frequently; Test strips and test kits employing liquid reagents are used for analyzing spa water ,quality,. Consistency in the color standards from print run to print run is an important feature with test kits.

Direct Treatment of an Acidic and High‐Strength Nitrate ...
Direct Treatment of an Acidic and High‐Strength Nitrate ...

Continuous experiments were carried out by feeding a synthetic ,wastewater, containing ,nitrate, and binary heavy metal ions (copper and lead) at different loads and current densities. Acetate was added at 1.0 of C/N mass ratio which was less than the stoichiometric amount for the overall denitrification reaction.

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