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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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Design and Experimental Testing of Small-scale Acid Mine ...
Design and Experimental Testing of Small-scale Acid Mine ...

the pH of synthetic ,acid mine, up to 125 % and the ,sulfate,, iron, and manganese are reduced by 98.00, 94.11, and 95.84 %, respectively. The results also showed that the AMD small scale plant was capable to produce high quality of permeate and have met the environmental standard. Keywords: ,Acid mine,, Reverse Osmosis, Sand Filter, Ultrafiltration 1.

Sulfate Removal - Samco Tech - SAMCO | Water Wastewater ...
Sulfate Removal - Samco Tech - SAMCO | Water Wastewater ...

SAMCO’s ,sulfate removal, process is a membrane process that is used to take out sulfates from the ocean water and/or brine streams. When sulfates are present in crude oil, the bacteria eat the sulfates and break them down into hydrogen sulfide gas. SAMCO can help you efficiently remove these sulfates so the biological activity doesn’t take place. When present … » Read More

High rate of biological removal of sulfate organic matter ...
High rate of biological removal of sulfate organic matter ...

The anaerobic biological treatment of sulfate‐rich effluents, such as acid mine drainage (AMD), is mediated by sulfate‐reducing bacteria (SRB). This process involves the reduction of sulfates in the presence of an electron donor. Complex carbon compounds can be used as electron donors.

Feasibility of Utilizing Acid Mine Drainage Sludge in an ...
Feasibility of Utilizing Acid Mine Drainage Sludge in an ...

Feasibility of Utilizing ,Acid Mine, Drainage Sludge in an ,Innovative Iron-based Wastewater Treatment Process, R. Anwar1, M. Ahmed1, P. Ziemkiewicz2, L.-S. Lin1 1Department of Civil and Environmental Engineering, West Virginia University, Morgantown, WV, 26506, USA 2West Virginia Water Research Institute, West Virginia University, Morgantown, 26506, USA

Study on the treatment of acid mine wastewater by coal fly ash
Study on the treatment of acid mine wastewater by coal fly ash

The adjustment of pH and the ,removal, of COD, ,sulfate, and three kinds of heavy metal ions (Cd2+, Cu2+, Zn2+) were illustrated. The results showed that the coal fly ash ... ,acid mine wastewater,, and at the same time , coal fly ash were modified by ,acid, method, and examined the treatment

Mg/Al LDH Enhances Sulfate removal and Clarification of ...
Mg/Al LDH Enhances Sulfate removal and Clarification of ...

The ,sulfate removal from acid mine, drainage (AMD) water (initial concentration: 5301 mg/L) was investigated by precipitation and/or adsorption using calcium hydroxide (Ca(OH)2) and synthetic layered double hydroxide (LDH) of the Mg/Al type. The exclusive use of LDH efficiently removed sulfates (64.2% reduction); however, alteration of its structure was observed due to low pH.

Advances In Biotreatment of Acid Mine Drainage and ...
Advances In Biotreatment of Acid Mine Drainage and ...

Data are presented on the effect of ,acid mine, water ,sulfate, loading at 25, 50, 75 and 100 ml/min in scale-up SRB membrane units, under varied temperatures (25, 35 and 40 °C) to determine and optimize ,sulfate, conversions for an effective AMD biotreatment.

Constructed Wetlands for Treating Acid Mine Drainage
Constructed Wetlands for Treating Acid Mine Drainage

of heavy metals, ,sulfate,, and other total dissolved solids. Contaminants that are of particular concern have been acidity, iron, manganese, and aluminum (Perry & Kleinman 1991). A second source of ,acid mine, drainage is by chemosynthetic bacteria including . Thiobacillus ferooxidans, T. thiooxidans, and . Ferrobacillus ferroxidans

Constructed Wetlands for Treating Acid Mine Drainage
Constructed Wetlands for Treating Acid Mine Drainage

of heavy metals, ,sulfate,, and other total dissolved solids. Contaminants that are of particular concern have been acidity, iron, manganese, and aluminum (Perry & Kleinman 1991). A second source of ,acid mine, drainage is by chemosynthetic bacteria including . Thiobacillus ferooxidans, T. thiooxidans, and . Ferrobacillus ferroxidans

Feasibility of Utilizing Acid Mine Drainage Sludge in an ...
Feasibility of Utilizing Acid Mine Drainage Sludge in an ...

Feasibility of Utilizing ,Acid Mine, Drainage Sludge in an ,Innovative Iron-based Wastewater Treatment Process, R. Anwar1, M. Ahmed1, P. Ziemkiewicz2, L.-S. Lin1 1Department of Civil and Environmental Engineering, West Virginia University, Morgantown, WV, 26506, USA 2West Virginia Water Research Institute, West Virginia University, Morgantown, 26506, USA

Mine Water Treatment & Tailings Reduction | Saltworks ...
Mine Water Treatment & Tailings Reduction | Saltworks ...

15/12/2020, · Once a review is complete, most of our clients’ ,sulfate removal, needs can be classified into high- and low- total dissolved solids (TDS) waters, described below. We have solutions for both, adjusted to your unique ,wastewater,, including our new SulfateSelect solution family for low TDS wastewaters.

Removal of High-Concentration Sulfate Ions from the Sodium ...
Removal of High-Concentration Sulfate Ions from the Sodium ...

The feasibility of ,removal, of ,sulfate, ions from ,the sodium alkali FGD wastewater using, the ,ettringite precipitation method, was evaluated. Factors affecting the ,removal, of ,sulfate, ions, such as NaAlO 2 dosage, Ca(OH) 2 dosage, solution temperature, anions (Cl − , NO 3 − and F −), and heavy metal ions (Mg2+ and Mn2+), were investigated, and the ...

Biological treatment of heavy metals in acid mine drainage ...
Biological treatment of heavy metals in acid mine drainage ...

The uncontrolled release of ,acid mine, drainage (AMD) from abandoned mines and tailing piles threatens water resources in many sites worldwide. AMD introduces elevated concentrations of ,sulfate, ions and dissolved heavy metals as well as high acidity levels to groundwater and receiving surface water.

Metallic wastewater treatment by sulfate reduction using ...
Metallic wastewater treatment by sulfate reduction using ...

In a study using packed bed bioreactor (PBR) for treating ,mine wastewater, with a novel marine waste extract (MWE) as an alternative nitrogen source for the growth of SRB, Dev et al. (2016) reported 62%‒66% of ,sulfate removal, and 66%‒75% of metal ,removal, (Fe, Cu, Zn, Mn, Mg and Ni) at a very high hydraulic retention time (HRT) of 120 h.

Sulfate Removal - Samco Tech - SAMCO | Water Wastewater ...
Sulfate Removal - Samco Tech - SAMCO | Water Wastewater ...

SAMCO’s ,sulfate removal, process is a membrane process that is used to take out sulfates from the ocean water and/or brine streams. When sulfates are present in crude oil, the bacteria eat the sulfates and break them down into hydrogen sulfide gas. SAMCO can help you efficiently remove these sulfates so the biological activity doesn’t take place. When present … » Read More

Mg/Al LDH Enhances Sulfate removal and Clarification of ...
Mg/Al LDH Enhances Sulfate removal and Clarification of ...

The sulfate removal from acid mine drainage (AMD) water (initial concentration: 5301 mg/L) was investigated by precipitation and/or adsorption using calcium hydroxide (Ca (OH) 2) and synthetic layered double hydroxide (LDH) of the Mg/Al type. The exclusive use of LDH efficiently removed sulfates (64.2% reduction); however, alteration of its ...

Acid Mine Drainage and the Techniques to Cleanup this ...
Acid Mine Drainage and the Techniques to Cleanup this ...

6/5/2019, · ,Acid Mine, Drainage is water that has a low pH and filled with heavy metals. ,Acid Mine, Drainage (AMD) is created by groundwater that travels through mines and then rejoins the watershed, polluting it. AMD is an urgent environmental issue in mining regions as it makes the affected water uninhabitable, devastating the ecosystem.

Acid Mine Drainage and the Techniques to Cleanup this ...
Acid Mine Drainage and the Techniques to Cleanup this ...

6/5/2019, · ,Acid Mine, Drainage is water that has a low pH and filled with heavy metals. ,Acid Mine, Drainage (AMD) is created by groundwater that travels through mines and then rejoins the watershed, polluting it. AMD is an urgent environmental issue in mining regions as it makes the affected water uninhabitable, devastating the ecosystem.

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