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Overview of fracturing fluid flowback fluid

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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Overview of fracturing fluid flowback fluid
Mg/Al LDH Enhances Sulfate removal and Clarification of ...
Mg/Al LDH Enhances Sulfate removal and Clarification of ...

23/7/2019, · 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.

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.

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

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.

Sulfates in Wastewater Treatment | P2W - Pollution to Water
Sulfates in Wastewater Treatment | P2W - Pollution to Water

One of the processes that are causing high concentrations of Sulfates in water affected by mining is commonly referred to as Acid Mine Drainage (AMD) or Acid Rock Drainage (ARD), and is associated with the formation of acid water from Metal and Coal mines where pyrites are predominantly present.

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

Industries such as mining operations are facing challenges of treating sulfur-containing wastewater such as acid mine drainage (AMD) generated in their plant. The aim of this work is to evaluate the use of a revolving algal biofilm (RAB) reactor to treat AMD with low pH (3.5-4) and high sulfate content (1-4 g/L).

Effective biotreatment of acidic mine water and hospital ...
Effective biotreatment of acidic mine water and hospital ...

1/10/2020, · This study shows that hospital wastewater and acid mine water fed in the sulfidogenic FBR co-treatment process removed COD from HWW then removed metals, sulfate, and acidity from acid mine drainage. The highest remo,val, for COD and, sulfate, concentrations were, between 39.5 mg/l and 42 mg/l at 0.68 COD/SO 4 2−, ratio and retention time of 8 h.

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.

Treatment of Acid Wastewater Containing Uranium by Sulfate ...
Treatment of Acid Wastewater Containing Uranium by Sulfate ...

Sulfate, treatment effect with 6.5 g/L SO42- concentration was 51.8 % in 15 days and 69.1 % in 30 days by SRB, respectively. Treatment effect of ,sulfate, was 64 and 83 %, the one of uranium was 60 and 82.3 % from simulated ,wastewater, by SRB and SRB + Fe0, respectively.

Treatment of Acid Mine Drainage by Sulfate Reducing ...
Treatment of Acid Mine Drainage by Sulfate Reducing ...

The results indicates that treating acid mining drainage using SRB and iron at room temperature (20°C~25°C) is possible, the reduction rate of sulfate is up to 61%, pH of wastewater raises from 2.75 to 6.2 and the copper concentration of effluent is less than 0.2 mg/L. Add to Cart.

ACID MINE DRAINAGE TREATMENT AND METAL REMOVAL …
ACID MINE DRAINAGE TREATMENT AND METAL REMOVAL …

Acid mine, drainage (AMD) is a dangerous form of pollution characterized by high acidity (pH near 2-3) and substantial quantities of ,sulfate, and soluble metals (Fe, Zn, Cu, Ni, Pb, and Cd ions). The accumulation of ,sulfate, in sediments and aquatic systems causes the release of toxic sulfides that can damage the environment ( Utgikar et al., 2002 ; Ghigliazza et al., 2000 ).

ACID MINE DRAINAGE TREATMENT AND METAL REMOVAL …
ACID MINE DRAINAGE TREATMENT AND METAL REMOVAL …

Acid mine drainage (AMD) is a dangerous form of pollution characterized by high acidity (pH near 2-3) and substantial quantities of sulfate and soluble metals (Fe, Zn, Cu, Ni, Pb, and Cd ions). The accumulation of sulfate in sediments and aquatic systems causes the release of toxic sulfides that can damage the environment ( Utgikar et al., 2002 ; Ghigliazza et al., 2000 ).

A New Process For Sulfate Removal From Industrial Waters
A New Process For Sulfate Removal From Industrial Waters

The most common method for removing high concentrations of sulfate from water is through, addition of hydrated lime (Ca (OH)2),,, which precipitates calcium sulfate: Na 2 SO 4 + Ca (OH) 2 => CaSO 4 + 2 NaOH Calcium sulfate, which hydrates to become the common mineral gypsum, has, a, solubility of approximately, 2000 mg/L as sulfate.

Sulfate Removal Technologies A Review - Water Online
Sulfate Removal Technologies A Review - Water Online

The SAVMIN process was developed by MINTEK in South Africa in the 1990s to treat acid mine drainage. Ettringite is precipitated as in the CESR process, in this case by recycling aluminum hydroxide. Sulfate levels can be reduced to, less than 200 mg/L, by this process.

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

Sulfate Removal from Mine Water - OLI
Sulfate Removal from Mine Water - OLI

Three-stage Process for ,Sulfate, Reduction In the case of waters with lower ,sulfate, content, where pretreatment for gypsum (CaSO 4 *2H 2 O) precipitation is not economically justified, Stage 1 treatment can be eliminated and the water can go directly to Stage 2 GYPSUM SOLIDS LIME DISCHARGE STAGE 1, PRETREATMENT/ GYPSUM PRECIPITATION STAGE 2, ETTRINGITE

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