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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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Removing Heavy Metals From Wastewater
Removing Heavy Metals From Wastewater

The goal of the rapid mix operation is to first raise the ,wastewater, pH to form metal hydroxide particles, as discussed above. After the addition of caustic, the next step is to add aluminum or iron salts, or organic polymers (coagulants) directly to the ,wastewater,. These polymers attach to the metal solids particles.

Comparative Analysis of Brewing Wastewater and Lactate as ...
Comparative Analysis of Brewing Wastewater and Lactate as ...

This study investigated the effect of carbon sources (n = 2) on the performance of a microbial community in an anaerobic moving bed biofilm reactors (MBBR) treating ,acid mine, drainage (AMD). The 1.5 L anaerobic MBBR was operated across a range of hydraulic retention times - HRT's (3-18 days), using …

Biotreatment of acidic zinc- and copper-containing ...
Biotreatment of acidic zinc- and copper-containing ...

Biotreatment of acidic zinc- and ,copper,-,containing wastewater, using ethanol-fed sulfidogenic anaerobic baffled reactor. Sahinkaya E(1), Yucesoy Z. Author information: (1)Environmental Engineering Department, Harran University, Osmanbey Campus, 63000, Sanliurfa, Turkey. erkansahinkaya@yahoo.com

Treatment system and process for treating acidic copper ...
Treatment system and process for treating acidic copper ...

The invention discloses a treatment system for treating acidic ,copper,-,containing, electroplating ,wastewater,. The treatment system comprises a ,wastewater, collecting unit, a pre-treatment unit, an ultra-filtration unit, a concentration unit and a reverse osmosis unit which are sequentially communicated by a pipeline, wherein the ,wastewater, collecting unit comprises a ,wastewater, collecting barrel ...

Efficient removal of arsenic from copper smelting ...
Efficient removal of arsenic from copper smelting ...

10/10/2020, · ,Copper, smelting, wastewater,, one of the typical high arsenic-containing, acidic wastewater, in the metallurgical extraction process of arsenic-associated minerals, greatly threatens human health and ecological safety due to the possible leakage and diffusion from its secondary pollution.

CN103435173A - Treatment system and process for treating ...
CN103435173A - Treatment system and process for treating ...

The invention discloses a treatment system for treating acidic ,copper,-,containing, electroplating ,wastewater,. The treatment system comprises a ,wastewater, collecting unit, a pre-treatment unit, an ultra-filtration unit, a concentration unit and a reverse osmosis unit which are sequentially communicated by a pipeline, wherein the ,wastewater, collecting unit comprises a ,wastewater, collecting barrel ...

Wastewater Treatment during PCB Fabrication Process | PSPCB
Wastewater Treatment during PCB Fabrication Process | PSPCB

This process produces, acidic copper-containing waste, liquid,, copper-containing wastewater,, and ammonia. (6) Fading: Dissolve the hardened dry film on the, copper, line with an aqueous solution, containing, sodium hydroxide or an organic solvent to expose the copper line and wash it with water. This process produces organic, wastewater, and waste.

Acid Mine Drainage: Innovative Treatment Technologies
Acid Mine Drainage: Innovative Treatment Technologies

Acid Mine Drainage: Innovative Treatment Technologies, Purpose Currently there is no comprehensive survey about the types of remediation technologies being used to treat abandoned mines. The purpose of this paper is to provide information about this topic with a particular focus on hard rock mining sites. Hard rock mines can be loosely defined as

Heavy Metals Removal Industrial Wastewater Solutions
Heavy Metals Removal Industrial Wastewater Solutions

Acid Mine, Drainage ,Acid Mine, Drainage. ,Acid mine, drainage (AMD) is typically characterized by low pH and high dissolved iron. The ,acid mine, drainage may also contain high amounts of CO2 which forms carbonic ,acid, and further depresses the pH. There are four chemical reactions that represent the chemistry of pyrite weathering to form ,acid mine, ...

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

Keywords: AMD sludge, ,wastewater, treatment, iron reducing bacteria. Presenting author email: ra0009@mix.wvu.edu ,Acid mine, drainage (AMD) is a common pollution source in coal and mineral producing regions, requiring treatment to comply with pollution control regulations. In the Appalachian Basin of the U.S., ,mine, drainage is

Wastewater Minimization and Reuse in Mining Industry in ...
Wastewater Minimization and Reuse in Mining Industry in ...

The main sources of ,wastewater, from a mining operation in the Illawarra region can be broadly classified into: 1. ,Mine, water 2. Process ,wastewater, 3. Sewage 4. Surface runoff ,Mine, water The ,mine, water is the probable source only in the case of underground mining. The source is seepage from the excavated area of the ,mine,.

Two-stage combined treatment of acid mine drainage and ...
Two-stage combined treatment of acid mine drainage and ...

This study examined the feasibility of the combined treatment of field-collected ,acid mine, drainages (AMD, pH = 4.2 ± 0.9, iron = 112 ± 118 mg/L, sulfate = 1,846 ± 594 mg/L) and municipal ,wastewater, (MWW, avg. chemical oxygen demand (COD) = 234-333 mg/L) using a two-stage process. The process consisted of batch mixing of the two wastes to condition the mixture solutions, followed by ...

Heavy Metal Complexes Wastewater Treatment with Chelation ...
Heavy Metal Complexes Wastewater Treatment with Chelation ...

Using electroplating wastewater containing copper, nickel and chromium complexes with EDTA, ammonia and, citric acid, as an example, this study investigated the reaction mechanism and influencing factors of heavy metal removal efficiency from metal complexes using dithiocarbamates. The stability of chelating complexes was evaluated.

Cu(0)/TiO2 composite byproduct from photo-reduction of ...
Cu(0)/TiO2 composite byproduct from photo-reduction of ...

1/12/2019, · ,Acidic copper-containing wastewater, is a heavy-metal pollutant, which originates from various industries including chemical, electroplating, non-ferrous metal smelting, electronic materials, paper, and other industries [, , , ].

Wastewater Treatment for the Mining Industry | Fluence
Wastewater Treatment for the Mining Industry | Fluence

7/10/2020, · In some locations, significant rainfall can lead to ,acid, runoff from ,mine, drainage, tailings piles, and surface mines, polluting streams and rivers. In drier locations, the mining and processing of ores can deliver a one-two punch to local water supplies, both using up …

Development of Innovative Wastewater Treatment ...
Development of Innovative Wastewater Treatment ...

Development of Innovative Wastewater Treatment Technologies for Acid Mine, Drainage and Municipal ,Wastewater, Management in Energy Producing Regions By Dongyang Deng . ,Acid mine, drainage (AMD) and municipal ,wastewater, (MWW) are two major pollution sources in headwaters of Appalachia and energy producing regions worldwide.

Treatment of acidic copper-containing wastewater using ...
Treatment of acidic copper-containing wastewater using ...

A study of treating the acidic ,copper-containing wastewater,(Cu2+ concentration of 143.00 mg/L,pH 1.80-2.00) from the laboratory of East China Institute of Technology using the processed eggshells is carried out.The effect of various parameters including calcining temperature,amount and particle size of eggshells,stirring speed on removal rate of Cu2+ is investigated.The optimum condition is ...

Biotreatment of acidic zinc- and copper-containing ...
Biotreatment of acidic zinc- and copper-containing ...

6/4/2010, · Sahinkaya, E., Yucesoy, Z. Biotreatment of acidic zinc- and ,copper-containing wastewater, using ethanol-fed sulfidogenic anaerobic baffled reactor. Bioprocess Biosyst Eng 33, 989–997 (2010). https://doi.org/10.1007/s00449-010-0423-9. Download citation. Received: 31 January 2010. Accepted: 18 March 2010. Published: 06 April 2010. Issue Date: October 2010

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