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Organic acid wastewater

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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Organic acid wastewater
Treating Arsenic and Selenium in Mine-Influenced Waters
Treating Arsenic and Selenium in Mine-Influenced Waters

Arsenic is, unfortunately, a common groundwater contaminant. Water and wastewater that contain arsenic require treatment because it is toxic to animals that, and humans who, ingest it. Selenium is a metal that normally occurs in minerals, especially minerals that contain sulfide, an anion of sulfur, along with copper, lead, silver, and nickel.

REMOVAL OF ARSENIC AND HEAVY METALS FROM ARSENIC ...
REMOVAL OF ARSENIC AND HEAVY METALS FROM ARSENIC ...

Arsenic-containing acid wastewater produced in the mining and smelting process will bring great harm to the environment, while to treat arsenic-containing wastewater with iron salt and lime is …

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.

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.

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

arsenic, [5,6]. In the smelting of copper or lead-zinc ore, larger amounts of, acidic wastewater, are discharged when gaseous emission, containing, SO2, As, Cu, Pb, Zn and other impurities are washed with diluted, acid, [7]. Moreover, wasted electrolyte with a high concentration of, arsenic, is produced abundantly

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

15/10/2013, · ,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).

Removal of arsenic from acid wastewater via sulfide ...
Removal of arsenic from acid wastewater via sulfide ...

Abstract: To achieve a safe treatment of ,arsenic,-,containing, acid ,wastewater,, a new process was proposed, including ,arsenic, removal via sulfide precipitation and hydrothermal mineralization stabilization. Under optimal conditions of sulfide precipitation, 99.65% of ,arsenic, from ,wastewater, was precipitated in the form of amorphous As2S3.

DEPOLLUTION OF ACID WASTE WATERS CONTAINING ARSENIC …
DEPOLLUTION OF ACID WASTE WATERS CONTAINING ARSENIC …

Depollution of acid waste waters containing arsenic ions using liquid-liquid extraction 93 [7-16]. The principle of solvent extraction is the following: when the polluted water and the organic extractant are contacted and mixed, the metal ions are distributed in the two phases. After phase separation, the metal is …

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).

REMOVAL OF ARSENIC AND HEAVY METALS FROM ARSENIC ...
REMOVAL OF ARSENIC AND HEAVY METALS FROM ARSENIC ...

Arsenic-containing acid wastewater produced in the mining and smelting process will bring great harm to environment, while the to treat arsenic-containing wastewater with, iron salt, and lime is an economical and effective method. In this paper,, iron salt, was

Removal of Arsenic from Strongly Acidic Wastewater Using ...
Removal of Arsenic from Strongly Acidic Wastewater Using ...

Strongly acidic wastewater (H 2 SO 4) with a high arsenic concentration is produced by many industries. The removal of arsenic by traditional sulfide (e.g., Na 2 S, FeS) from strongly acidic wastewater introduces cations (Na + and Fe 2+) to the solution, which may prevent the recycle of acid.

Removal of Arsenic from Strongly Acidic Wastewater Using ...
Removal of Arsenic from Strongly Acidic Wastewater Using ...

26/3/2018, · Strongly acidic wastewater (H2SO4) with a high arsenic concentration is produced by many industries. The removal of arsenic by traditional sulfide (e.g., Na2S, FeS) from strongly acidic wastewater introduces cations (Na+ and Fe2+) to the solution, which may prevent the recycle of acid.

Removal of arsenic from acid wastewater via sulfide ...
Removal of arsenic from acid wastewater via sulfide ...

Abstract: To achieve a safe treatment of arsenic-containing acid wastewater, a new process was proposed, including arsenic removal via sulfide precipitation and hydrothermal mineralization stabilization. Under optimal conditions of sulfide precipitation, 99.65% of arsenic from wastewater was precipitated in the form of amorphous As2S3.

Removal of Arsenic from Strongly Acidic Wastewater Using ...
Removal of Arsenic from Strongly Acidic Wastewater Using ...

26/3/2018, · Strongly acidic ,wastewater, (H2SO4) with a high ,arsenic, concentration is produced by many industries. The removal of ,arsenic, by traditional sulfide (e.g., Na2S, FeS) from strongly acidic ,wastewater, introduces cations (Na+ and Fe2+) to the solution, which may prevent the recycle of acid. In this study, a new sulfuration agent, phosphorus pentasulfide (P2S5) was employed, and its feasibility in ...

Research progress of arsenic removal from wastewater ...
Research progress of arsenic removal from wastewater ...

The wastewater discharged from metallurgical and chemical industries often contains toxic heavy metal element arsenic. If the wastewater discharged directly without treatment, it will cause serious damage to the environment. In this review, different treatment processes of arsenic-containing wastewater with different concentrations are compared and ...

Removal of Arsenic from Strongly Acidic Wastewater Using ...
Removal of Arsenic from Strongly Acidic Wastewater Using ...

Strongly, acidic wastewater, (H 2 SO 4) with a high, arsenic, concentration is produced by many industries. The removal of, arsenic, by traditional sulfide (e.g., Na 2 S, FeS) from strongly, acidic wastewater, introduces cations (Na + and Fe 2+) to the solution, which may prevent the recycle of acid.

DEPOLLUTION OF ACID WASTE WATERS CONTAINING ARSENIC …
DEPOLLUTION OF ACID WASTE WATERS CONTAINING ARSENIC …

Depollution of acid waste waters ,containing arsenic, ions using liquid-liquid extraction 93 [7-16]. The principle of solvent extraction is the following: when the polluted water and the organic extractant are contacted and mixed, the metal ions are distributed in the two phases. After phase separation, the metal is …

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