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oil gas field fracturing flow-back fluids separation techniques include

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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oil gas field fracturing flow-back fluids separation techniques include
Significance of bio-treatment by acid washing for ...
Significance of bio-treatment by acid washing for ...

of carcinogenic and toxic ,arsenic, from ,wastewater, is essential for the safety of water that may be ... desorption of ,arsenic, using ,acid, washing is essential for biomass regeneration. Keywords: ,Acid, washing, ... in 100 ml conical flask ,containing, 10 ml of the ,arsenic, solution before and after ,acid, washing. All tests were done in triplicate.

Arsenic Treatment Technologies for
Arsenic Treatment Technologies for

6.1 Scale of Identified Soil Washing/,Acid, Extraction Projects for ,Arsenic, Treatment ..... 6 - 1 7.1 Scale ... and treaters of ,arsenic,-contaminated waste and ,wastewater,; owners and operators of drinking water treatment plants; ... the treatment of soil, waste, and water ,containing arsenic,, a contaminant that can be difficult to treat and

Oxidation Process of Arsenic in Acidic Wastewater ...
Oxidation Process of Arsenic in Acidic Wastewater ...

The oxidation process of As( Ⅲ) in acidic ,wastewater containing arsenic, was studied.The E-p H diagram of As-H2 O system was analyzed.The oxidation effects of As( Ⅲ) oxidized by H2 SO5 produced by electrolysis and electrolytic oxidation of ,arsenic, in sulfuric ,acid,-,arsenic, mixed system were compared.The experimental results show that the oxidation potential of trivalent ,arsenic, is higher ...

Treatment of wastewater containing arsenic using Rhazya ...
Treatment of wastewater containing arsenic using Rhazya ...

Arsenic, (As) contamination has received widespread attention owing to its high toxicity to plants, animals and humans as inorganic arsenicals are proven carcinogens to human (Ng 2005).It is a member of the nitrogen family with both metallic and nonmetallic properties, and is ubiquitous in the environment (soil, water, air and also in living matters) (Tamaki and Frankenberger 1992).

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

Arsenic sulfide residue (ASR), a by-product from the treatment of arsenic-bearing acidic wastewater, is abundantly generated but not properly disposed of in China. The utilization of such high-content arsenic waste residue is limited by the market.

Oxidation Process of Arsenic in Acidic Wastewater ...
Oxidation Process of Arsenic in Acidic Wastewater ...

The oxidation process of As( Ⅲ) in acidic ,wastewater containing arsenic, was studied.The E-p H diagram of As-H2 O system was analyzed.The oxidation effects of As( Ⅲ) oxidized by H2 SO5 produced by electrolysis and electrolytic oxidation of ,arsenic, in sulfuric ,acid,-,arsenic, mixed system were compared.The experimental results show that the oxidation potential of trivalent ,arsenic, is higher ...

Significance of bio-treatment by acid washing for ...
Significance of bio-treatment by acid washing for ...

of carcinogenic and toxic ,arsenic, from ,wastewater, is essential for the safety of water that may be ... desorption of ,arsenic, using ,acid, washing is essential for biomass regeneration. Keywords: ,Acid, washing, ... in 100 ml conical flask ,containing, 10 ml of the ,arsenic, solution before and after ,acid, washing. All tests were done in triplicate.

The synthesis of calcium arsenate@iron arsenate coating ...
The synthesis of calcium arsenate@iron arsenate coating ...

At present, the most common method for removing and immobilizing arsenic in industrial applications is the calcium arsenate (Ca 3 (AsO 4) 2) precipitation method. 1–3 The arsenic-containing wastewater is treated by using calcium oxide or calcium hydroxide to form a calcium arsenate precipitate. 4 However, calcium arsenate is not stable, it easily reacts with carbon dioxide in the air and cannot exist stably in …

Efficient removal of arsenic from “dirty acid” wastewater ...
Efficient removal of arsenic from “dirty acid” wastewater ...

Abstract Chronic ,Arsenic, (As) poisoning has become a worldwide issue of public health. Therefore, efficient removal of As from ,wastewater, before drainage is of great importance. This paper aimed at designing a novel reactor ,containing, an immersed multi-start distributor for sulphide feeding to remove As from dirty ,acid wastewater, by precipitation.

Arsenic removal from water/wastewater using adsorbents—A ...
Arsenic removal from water/wastewater using adsorbents—A ...

Arsenic, removal from water/,wastewater using adsorbents—A critical review, Dinesh Mohana,b,∗, Charles U. Pittman Jr.a a Department of Chemistry, Mississippi State University, Mississippi State, MS 39762, USA b Environmental Chemistry Division, Industrial Toxicology Research Centre, Post Box No. 80, Mahatma Gandhi Marg, Lucknow 226001, India Received 30 October 2006; received in revised …

Arsenic removal from water/wastewater using adsorbents—A ...
Arsenic removal from water/wastewater using adsorbents—A ...

Arsenic, removal from water/,wastewater using adsorbents—A critical review, Dinesh Mohana,b,∗, Charles U. Pittman Jr.a a Department of Chemistry, Mississippi State University, Mississippi State, MS 39762, USA b Environmental Chemistry Division, Industrial Toxicology Research Centre, Post Box No. 80, Mahatma Gandhi Marg, Lucknow 226001, India Received 30 October 2006; received in revised …

Efficient removal of arsenic from “dirty acid” wastewater ...
Efficient removal of arsenic from “dirty acid” wastewater ...

Abstract Chronic ,Arsenic, (As) poisoning has become a worldwide issue of public health. Therefore, efficient removal of As from ,wastewater, before drainage is of great importance. This paper aimed at designing a novel reactor ,containing, an immersed multi-start distributor for sulphide feeding to remove As from dirty ,acid wastewater, by precipitation.

Arsenic Contamination from Water - ScienceBuzz
Arsenic Contamination from Water - ScienceBuzz

Briefly, humic ,acid, (0.5 grams) was dissolved in 50 milliliters of water. This solution was added to the three beakers (flasks) ,containing, nanoparticles and stirred within flasks for 30 minutes at 90° Celsius. The humic ,acid, coated nanoparticles were removed from each flask using magnetic facilitated decanting. Adsorption of ,Arsenic

Method for arsenic removal from wastewater - Anco ...
Method for arsenic removal from wastewater - Anco ...

This invention relates to a process for removing ,arsenic containing, compounds from ,wastewater,, groundwater, and the like wherein said compounds are normally present in a soluble or dissolved form. Incidental thereto, the process of this invention also is capable of removing certain heavy metals associated with such ,wastewater, or groundwater streams.

Method for arsenic removal from wastewater - Anco ...
Method for arsenic removal from wastewater - Anco ...

This invention relates to a process for removing ,arsenic containing, compounds from ,wastewater,, groundwater, and the like wherein said compounds are normally present in a soluble or dissolved form. Incidental thereto, the process of this invention also is capable of removing certain heavy metals associated with such ,wastewater, or groundwater streams.

The synthesis of calcium arsenate@iron arsenate coating ...
The synthesis of calcium arsenate@iron arsenate coating ...

The current method of treating ,arsenic,-,containing wastewater, is mainly to use a calcium method to synthesize stable calcium arsenate. It is easy to cause reverse dissolution by rain or other erosion, releasing ,arsenic, into the natural world and polluting soil and groundwater. So, calcium arsenate is …

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