Welcome to the company ! we have many years of professional experience !
rsdgj@pyzyrsd.com +86 513525609655

Lab

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.

Certificate of Honor

Get in touch with us

We will confidentially process your data and will not pass it on to a third party.

Lab
Experimental study on the treatment of acid mine drainage ...
Experimental study on the treatment of acid mine drainage ...

First published on 17th June 2019. In view of the characteristics of high content of SO 4 2−, Fe 2+ and Mn 2+ in ,acid mine, drainage and low pH value, based on the microbial immobilization technology, the single factor test and the orthogonal test were set respectively to determine the optimum alkaline H 2 O 2 modification conditions for corncob. Then combining with sulfate reducing bacteria ...

Anaerobic digestion inhibition indicators and control ...
Anaerobic digestion inhibition indicators and control ...

Mitigating ammonia ,inhibition, of thermophilic anaerobic treatment of digested piggery ,wastewater,: use of pH reduction, zeolite, biomass and humic ,acid,. Water Res 46(14), 4339-4350. Ho S.H., Yang Z.K., Nagarajan D., Chang J.S. & Ren N.Q. (2017). High-efficiency removal of lead from ,wastewater, by biochar derived from anaerobic digestion sludge.

Mine sludge waste recycling as bio-stimulant for ...
Mine sludge waste recycling as bio-stimulant for ...

The mine sludge consisting of sludge from the tailings or settleable solids in the acid mine water (acid mine drainage) is perceived as a severe environmental burden and hence needs proper management. Typically, mine waste sludge in India, as well as in rest of the world, is disposed of in open pits or landfills (Rakotonimaro et al. 2017).

Effective Treatment of Acid Mine Drainage with Microbial ...
Effective Treatment of Acid Mine Drainage with Microbial ...

Acid mine, drainage (AMD), characterized by a high concentration of heavy metals, poses a threat to the ecosystem and human health. Bioelectrochemical system (BES) is a promising technology for the simultaneous treatment of organic ,wastewater, and recovery of metal ions from AMD. Different kinds of organic ,wastewater, usually contain different predominant organic chemicals.

A Mathematical model of a high Sulphate wastewater ...
A Mathematical model of a high Sulphate wastewater ...

ical oxidation of sulphide ores (,acid mine, drainage), cannot be discharged into the environment untreated. Apart from the high sulphate levels, these waters may be very acidic and have high dissolved heavy metal.·concentrations. One promising treatment technology is biological sulphate reduction in anaerobic reactors. During

Preparation of a novel water-soluble organosilane coating ...
Preparation of a novel water-soluble organosilane coating ...

30/11/2020, · Acid mine drainage (AMD) produced by the, oxidation of sulfide ore,, especially pyrite, pollutes water and soil. Therefore, it is particularly important to control the oxidation of pyrite and the production of acid mine wastewater at the source.

(PDF) Acid Mine Drainage (AMD): causes treatment and case ...
(PDF) Acid Mine Drainage (AMD): causes treatment and case ...

Naturally-occurring bacteria can ac- celerate AMD production by assisting in the breakdown The mining of certain minerals, including gold, of sulfide minerals. copper, and nickel, is associated with ,acid, drainage Also referred to as ,acid, rock drainage (ARD), AMD problems that can cause long-term impairment to emanating from ,mine, waste rock, tailings, and ,mine, waterways and biodiversity.

Stream Monitoring and Preliminary Co-Treatment of Acid ...
Stream Monitoring and Preliminary Co-Treatment of Acid ...

This study investigated coal-,mine, drainage (AMD) and municipal ,wastewater, (MWW) contaminant concentrations and conducted the combined treatment in phases I and II: phase I, evaluating the effects of mixing the two based on the extent of ,acid, neutralization and metals removal; phase II: conducting anaerobic batch reactor treatment of AMD and MWW under varying COD/sulfate ratios (0.04-5.0).

Simultaneous sulfate and zinc removal from acid wastewater ...
Simultaneous sulfate and zinc removal from acid wastewater ...

5/3/2016, · The formation of ZnS alleviated the inhibition from sulfide and sped the sulfate reduction. With 15 and 25 mgL(-1) Zn added, more than 99% of Zn was removed from the wastewater. Dissolved Zn ions in the catholyte were converted into insoluble Zn compounds, such as zinc sulfide and zinc hydroxide, due to the sulfide and elevated pH produced by sulfate reduction.

Simultaneous sulfate and zinc removal from acid wastewater ...
Simultaneous sulfate and zinc removal from acid wastewater ...

5/3/2016, · The formation of ZnS alleviated the ,inhibition, from sulfide and sped the sulfate reduction. With 15 and 25 mgL(-1) Zn added, more than 99% of Zn was removed from the ,wastewater,. Dissolved Zn ions in the catholyte were converted into insoluble Zn compounds, such as zinc sulfide and zinc hydroxide, due to the sulfide and elevated pH produced by sulfate reduction.

Anaerobic digestion inhibition indicators and control ...
Anaerobic digestion inhibition indicators and control ...

Mitigating ammonia ,inhibition, of thermophilic anaerobic treatment of digested piggery ,wastewater,: use of pH reduction, zeolite, biomass and humic ,acid,. Water Res 46(14), 4339-4350. Ho S.H., Yang Z.K., Nagarajan D., Chang J.S. & Ren N.Q. (2017). High-efficiency removal of lead from ,wastewater, by biochar derived from anaerobic digestion sludge.

Education Development Center
Education Development Center

data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAKAAAAB4CAYAAAB1ovlvAAACs0lEQVR4Xu3XMWoqUQCG0RtN7wJck7VgEW1cR3aUTbgb7UUFmYfpUiTFK/xAzlQWAz/z3cMMvk3TNA2XAlGBNwCj8ma ...

(PDF) Acid Mine Drainage (AMD): causes treatment and case ...
(PDF) Acid Mine Drainage (AMD): causes treatment and case ...

Naturally-occurring bacteria can ac- celerate AMD production by assisting in the breakdown The mining of certain minerals, including gold, of sulfide minerals. copper, and nickel, is associated with ,acid, drainage Also referred to as ,acid, rock drainage (ARD), AMD problems that can cause long-term impairment to emanating from ,mine, waste rock, tailings, and ,mine, waterways and biodiversity.

Experimental study on the treatment of acid mine drainage ...
Experimental study on the treatment of acid mine drainage ...

First published on 17th June 2019. In view of the characteristics of high content of SO 4 2−, Fe 2+ and Mn 2+ in ,acid mine, drainage and low pH value, based on the microbial immobilization technology, the single factor test and the orthogonal test were set respectively to determine the optimum alkaline H 2 O 2 modification conditions for corncob. Then combining with sulfate reducing bacteria ...

A Mathematical model of a high Sulphate wastewater ...
A Mathematical model of a high Sulphate wastewater ...

ical oxidation of sulphide ores (,acid mine, drainage), cannot be discharged into the environment untreated. Apart from the high sulphate levels, these waters may be very acidic and have high dissolved heavy metal.·concentrations. One promising treatment technology is biological sulphate reduction in anaerobic reactors. During

Abatement of acid mine drainage by encapsulation of acid ...
Abatement of acid mine drainage by encapsulation of acid ...

Laboratory tests on the inhibition of acid mine drainage bacteria were conducted. Benzoic, acid, sorbic acid,, and, sodium lauryl sulfate, at low concentrations (5 to 10 mg/liter) each effectively, inhibited oxidation of ferrous iron, in batch cultures of Thiobacillus ferrooxidans.

Acute and Chronic Toxicity of Acid Mine Drainage to the ...
Acute and Chronic Toxicity of Acid Mine Drainage to the ...

Abstract The combined treatment of ,acid mine, drainage (AMD) and municipal ,wastewater, using the activated ... Results from OUR ,inhibition, tests on the ... Co-treatment of ,acid mine, drainage (AMD ...

Inhibition of acid mine drainage and immobilization of ...
Inhibition of acid mine drainage and immobilization of ...

28/1/2016, · Acid mine drainage (AMD) with high concentrations of sulfates and metals is generated by the oxidation of, sulfide bearing, wastes. CaCO3-rich marble cutting In this study, the feasibility of using the marble cutting waste as an acid-neutralizing agent to inhibit AMD and immobilize heavy metals from copper flotation tailings (sulfide- bearing wastes) was investigated.

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City