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Taking acid mine wastewater 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 acid mine wastewater as an example
Effect of Etching on Electron–Hole Recombination in Sr ...
Effect of Etching on Electron–Hole Recombination in Sr ...

Sodium tantalate (NaTaO3) photocatalysts doped with Sr2+ ,produce, core–shell-structured NaTaO3–SrSr1/3Ta2/3O3 solid solutions able to split water efficiently, when prepared via the solid-state method. In this study, the photocatalysts were chemically etched to examine the different roles of the core and shell with respect to the recombination of electrons and holes. Under excitation by Hg ...

Fermentation | Free Full-Text | Biochemical Production and ...
Fermentation | Free Full-Text | Biochemical Production and ...

Paludibacter and Propionibacterium ,produce, propionic ,acid, as the major end product of fermentation. For example, Paludibacter propionicigenes produces propionate and acetate as major products when fermenting glucose . Paludibacter belongs to the phylum Bacteroidetes and is one of the most abundant species in ,wastewater, treatment plants .

Method for neutralizing waste pickling nitric ...
Method for neutralizing waste pickling nitric ...

The invention relates to the field of neutralization and ,wastewater, treatment, namely, chemical methods of purification of industrial waste, in particular waste ,etching, solutions generated during the processing of materials from stainless steel or titanium alloys, and containing nitric and hydrofluoric acids, potassium bichromate, as well as a number of ,complex, multicomponent systems.

Research Needs Document: ESH
Research Needs Document: ESH

acid, generators an d all stable chemical species generated from the manufacturing process to the ... effective technology for the removal of these compounds and/or their photodegradation products from ,complex, fab ,wastewater, streams. ... are used for plasma ,etching, and chamber cleaning. These chemicals can be hazardous, have high global ...

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