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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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Hydrothermal Treatment of Arsenic Sulfide Residues from ...
Hydrothermal Treatment of Arsenic Sulfide Residues from ...

in copper and lead-zinc electrolyte processes [8,9]. At present, there are many treatment methods for arsenic-containing wastewater, such as precipitation, adsorption, and biological methods [10–14]. However, such wastewater is usually treated with sodium sulfide, sodium hydrosulfide or, hydrogen

A review of the recent advances on the treatment of ...
A review of the recent advances on the treatment of ...

15/2/2021, · To simulate winery ,wastewater,, ethanol, gallic ,acid,, vanillin and acetic ,acid, have been used, even mixture of water and wine can be a suitable way . Milk powder for dairy ,wastewater, [61] , olive oil, surfactant and phenol for olive oil mill ,wastewater, [62] and even adding more than 14 compounds for landfill leachate have been utilized in literature [63] .

Acid Mine Drainage - an overview | ScienceDirect Topics
Acid Mine Drainage - an overview | ScienceDirect Topics

Acid Mine Drainage,. ,Acid mine drainage, (AMD) is a major water quality problem as it reduces the pH of water resource, making dissolved metals readily available for uptake by benthic organisms and fish, which becomes a major pathway of their introduction into the human food chain. From: Water Conservation and ,Wastewater, Treatment in BRICS ...

Bioremediation - Wikipedia
Bioremediation - Wikipedia

Bioremediation, is a process used to treat contaminated media, including water, soil and subsurface material, by altering environmental conditions to stimulate growth of microorganisms and degrade the target pollutants. Cases where ,bioremediation, is commonly seen is oil spills, soils contaminated with acidic mining drainage, underground pipe leaks, and crime scene cleanups.

Acid Mine Drainage - an overview | ScienceDirect Topics
Acid Mine Drainage - an overview | ScienceDirect Topics

Acid Mine Drainage,. ,Acid mine drainage, (AMD) is a major water quality problem as it reduces the pH of water resource, making dissolved metals readily available for uptake by benthic organisms and fish, which becomes a major pathway of their introduction into the human food chain. From: Water Conservation and ,Wastewater, Treatment in BRICS ...

Bioremediation - Wikipedia
Bioremediation - Wikipedia

Bioremediation, is a process used to treat contaminated media, including water, soil and subsurface material, by altering environmental conditions to stimulate growth of microorganisms and degrade the target pollutants. Cases where ,bioremediation, is commonly seen is oil spills, soils contaminated with acidic mining drainage, underground pipe leaks, and crime scene cleanups.

Chapter 4 Hydrogen Sulfide and Sulfuric Acid Estimation ...
Chapter 4 Hydrogen Sulfide and Sulfuric Acid Estimation ...

sulfate, by ,bacteria, residing in a slime layer on the submerged portion of sewer pipes and structures. Once released from the ,wastewater, as hydrogen sulfide gas, odor and corrosion problems begin. Another type of ,bacteria, utilizes hydrogen sulfide gas to produce sulfuric ,acid, that causes the destruction of ,wastewater, piping and facilities.

HJ 2056-2018 PDF. - Chinese Standard
HJ 2056-2018 PDF. - Chinese Standard

6.2.5 Vulcanization method and membrane separation method are suitable for treating ,acidic wastewater containing copper, concentration above 80mg/L for recovery of valuable metals; In order to ensure that the effluent is up to standard, it is generally required to be combined with the lime neutralization method and the HDS method.

A review of the recent advances on the treatment of ...
A review of the recent advances on the treatment of ...

15/2/2021, · To simulate winery ,wastewater,, ethanol, gallic ,acid,, vanillin and acetic ,acid, have been used, even mixture of water and wine can be a suitable way . Milk powder for dairy ,wastewater, [61] , olive oil, surfactant and phenol for olive oil mill ,wastewater, [62] and even adding more than 14 compounds for landfill leachate have been utilized in literature [63] .

Biotechnological Treatment of Sulfate-Rich Wastewaters ...
Biotechnological Treatment of Sulfate-Rich Wastewaters ...

3/6/2010, · Theoretically, wastewaters with a COD/sulfate ratio of 0.67 or higher contain enough COD (electron donor) to remove all sulfate by sulfate-reducing bacteria. If the ratio is lower, addition of extra COD, for example, as ethanol or synthesis gas (a mixture of H 2 , CO 2 , and CO) is required.

JP4604203B2 - Treatment method for waste liquid containing ...
JP4604203B2 - Treatment method for waste liquid containing ...

copper, heavy metal treatment thiourea dioxide Prior art date 2006-11-20 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active Application number JP2007023784A Other languages Japanese (ja) Other versions

Sulfate-reducing bacteria in anaerobic bioreactors
Sulfate-reducing bacteria in anaerobic bioreactors

Desulfobulbus sp. seemed to be important in reactors with carbohydrates and/or volatile fatty acids containing wastewater. In the presence of sulfate these bacteria could play a role in propionate degradation, while in the absence of sulfate they might play a role in lactate and ethanol fermentation.

Sulfur - Wikipedia
Sulfur - Wikipedia

Sulfur, (in traditional lay Commonwealth English: sulphur) is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent and nonmetallic.Under normal conditions, ,sulfur, atoms form cyclic octatomic molecules with a chemical formula S 8.Elemental ,sulfur, is a bright yellow, crystalline solid at room temperature. ,Sulfur, is the tenth most common element by mass in the ...

Sulfate Reduction and Growth Kinetics of Sulfate Reducing ...
Sulfate Reduction and Growth Kinetics of Sulfate Reducing ...

Keywords ,sulfate reducing bacteria,, COD/SO4 2-ratio, ,sulfate, concentration, rate of ,sulfate, reduction, bacterial specific growth rate. Introduction Increasing population and industrial activities have led to the generation of high amount of ,wastewater,. Effluents from industries like pulp and paper, fertilizer, metallurgical, chemical

Sulfur - Wikipedia
Sulfur - Wikipedia

Sulfur, (in traditional lay Commonwealth English: sulphur) is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent and nonmetallic.Under normal conditions, ,sulfur, atoms form cyclic octatomic molecules with a chemical formula S 8.Elemental ,sulfur, is a bright yellow, crystalline solid at room temperature. ,Sulfur, is the tenth most common element by mass in the ...

Neomycin sulfate | C23H52N6O25S3 - PubChem
Neomycin sulfate | C23H52N6O25S3 - PubChem

Framycetin ,Sulfate, is the ,sulfate, salt form of framycetin, an aminoglycoside antibiotic isolated from Streptomyces lavendulae (), mainly containing ,neomycin, B, with broad-spectrum antibacterial activity. Framycetin is used mostly as a topical preparation and is poorly absorbed. Upon parenteral administration, this agent can cause nephrotoxicity and ototoxicity.

Neomycin sulfate | C23H52N6O25S3 - PubChem
Neomycin sulfate | C23H52N6O25S3 - PubChem

Framycetin ,Sulfate, is the ,sulfate, salt form of framycetin, an aminoglycoside antibiotic isolated from Streptomyces lavendulae (), mainly containing ,neomycin, B, with broad-spectrum antibacterial activity. Framycetin is used mostly as a topical preparation and is poorly absorbed. Upon parenteral administration, this agent can cause nephrotoxicity and ototoxicity.

Sewer pipes party: Sulfate is not invited | Science in the ...
Sewer pipes party: Sulfate is not invited | Science in the ...

Under the anaerobic conditions common in sewage, ,sulfate, is reduced to hydrogen sulfide by ,sulfate,-,reducing bacteria, . The emission of hydrogen sulfide in gravity sewer sections, sewage pumping stations, and inlet structures of ,wastewater, treatment plants induces sulfide oxidation to form corrosive sulfuric ,acid, on concrete surfaces exposed to air ( 4 , 5 ).

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