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gas testing and acid fracturing waste water emission treatment methods involves

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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gas testing and acid fracturing waste water emission treatment methods involves
Hydrothermal Treatment of Arsenic Sulfide Residues from ...
Hydrothermal Treatment of Arsenic Sulfide Residues from ...

However, such wastewater is usually ,treated, with ,sodium sulfide,, ,sodium, hydrosulfide or hydrogen ,sulfide, to precipitate arsenic, and the deposition of arsenic ,sulfide, residue (ASR) is then engendered [ 15, 16 ]. It is estimated that hundreds of thousands of tons of ASR are generated annually in China.

sulfamic acid main effect | chemicals news
sulfamic acid main effect | chemicals news

Such as ,electroplating wastewater, treatment 400ppmNi, 150 g / L of amino sulfonic ,acid, 50ml and recovery (NH2SO3) 2112 g / L, NiSO4148 g / dl. In the nickel component repair need nickel nickel, in the anode processing available 100 g / L of amino sulfonic ,acid, treatment.

Treating plating wastewater then re-using it
Treating plating wastewater then re-using it

Treating plating wastewater then re-using, it. A discussion started in 2002 but continuing through 2020. 2002. Q. Dear Sir/Madam, What methods are there to recycle treated water from ,Electroplating, process. Is it reliable to put it back on production? Our plating process requires De-Ionised Water.

EPA HAZARDOUS W C
EPA HAZARDOUS W C

F006 ,Wastewater, treatment sludge from ,electroplating, operations except from the following processes: (1) Sulfuric ,acid, anodizing of aluminum; (2) ,tin, plating on carbon steel; (3) zinc plating (segregated basis) on carbon steel; (4) aluminum or zinc ...

Summary Report: Control and Treatment Technology for the ...
Summary Report: Control and Treatment Technology for the ...

In the soluble ,sulfide precipitation, (SSP) process, the ,sulfide, is added in the form of a ,water,-soluble ,sulfide, reagent such as ,sodium sulfide, (Na2S) or ,sodium, hydrosulfide (IMaHS). A more recently developed process adds a slightly soluble ferrous ,sulfide, (FeS) slurry to the wastewater to supply the ,sulfide, ions needed to precipitate the heavy metals.

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

However, such wastewater is usually treated with sodium sulfide, sodium hydrosulfide or hydrogen sulfide to precipitate arsenic, and the deposition of arsenic sulfide residue (ASR) is then engendered [ 15, 16 ]. It is estimated that hundreds of thousands of tons of ASR are generated annually in China.

Summary Report: Control and Treatment Technology for the ...
Summary Report: Control and Treatment Technology for the ...

In the soluble ,sulfide precipitation, (SSP) process, the ,sulfide, is added in the form of a ,water,-soluble ,sulfide, reagent such as ,sodium sulfide, (Na2S) or ,sodium, hydrosulfide (IMaHS). A more recently developed process adds a slightly soluble ferrous ,sulfide, (FeS) slurry to the wastewater to supply the ,sulfide, ions needed to precipitate the heavy metals.

Sulfide precipitation of heavy metals - EPA - Home Page ...
Sulfide precipitation of heavy metals - EPA - Home Page ...

Sulfide precipitation is quite effective, even in the acidic pH; thus, selective metal recovery and the obtaining of effluent water of low calcium content (for possible water recycling because no lime may be required) are possible.

Sulfide precipitation of heavy metals - EPA - Home Page ...
Sulfide precipitation of heavy metals - EPA - Home Page ...

Sulfide precipitation is quite effective, even in the acidic pH; thus, selective metal recovery and the obtaining of effluent water of low calcium content (for possible water recycling because, no, lime may be required) are possible.

Ferrous and sulfide treatment of electroplating wastewater ...
Ferrous and sulfide treatment of electroplating wastewater ...

The wastewater is first adjusted to a pH of from about 8 to 10 and then ,treated, with ,sodium sulfide, to provide ,sulfide, ions to effect ,precipitation, of heavy metal contaminants followed by treatment with ferrous sulfate or ferrous chloride to provide ferrous ions to chemically reduce the hexavalent chromium to its trivalent state.

EPA HAZARDOUS W C
EPA HAZARDOUS W C

F006 ,Wastewater, treatment sludge from ,electroplating, operations except from the following processes: (1) Sulfuric ,acid, anodizing of aluminum; (2) ,tin, plating on carbon steel; (3) zinc plating (segregated basis) on carbon steel; (4) aluminum or zinc ...

Removal of heavy metals from electroplating wastewater ...
Removal of heavy metals from electroplating wastewater ...

Characteristics of ,Electroplating Wastewater,. ..... .4 1.3.2. Environmental and Health Problems ... chromium, nickel, lead, cadmium, ,tin,, zinc, brass or combinations of them. Platers immerse objects into a series of chemical baths in order to ... liquor are hydrochloric ,acid, and sulphuric ,acid,. 1.2.2 ...

Electroplating Wastewater Treatment Q&A's Problems ...
Electroplating Wastewater Treatment Q&A's Problems ...

Electroplating Wastewater, Treatment Q&A's, Problems & Solutions < Prev. page (You're on the last page of the thread) A discussion started in 1998 but continuing through 2020. 2007. Q. Hello everyone. We electroplate Nickel, Zinc (alkaline and ,acid,), copper, and ,tin,.

Selected Heavy Metals Removal From Electroplating ...
Selected Heavy Metals Removal From Electroplating ...

14/3/2019, · Industrial ,electroplating, process involves ,acid, pickling, alkaline cleaning, plating, and rinsing which produces ,wastewater, in large quantities containing high level of heavy metals, chemical ...

Hazardous Waste Minimization: Part IV Waste Reduction in ...
Hazardous Waste Minimization: Part IV Waste Reduction in ...

tin, and zinc. Precious metals such as gold, silver and platinum are also wide-ly used.2 In an ,electroplating, process the ob-jects to be plated are placed on racks or in barrels and moved through a series of process tanks. Each process bath is usually followed by a rinse tank in or-der to remove residual process solution from the part and ...

sulfamic acid main effect | chemicals news
sulfamic acid main effect | chemicals news

Such as ,electroplating wastewater, treatment 400ppmNi, 150 g / L of amino sulfonic ,acid, 50ml and recovery (NH2SO3) 2112 g / L, NiSO4148 g / dl. In the nickel component repair need nickel nickel, in the anode processing available 100 g / L of amino sulfonic ,acid, treatment.

Polyacrylamidefor wastewater treatment of electroplating ...
Polyacrylamidefor wastewater treatment of electroplating ...

Electroplating wastewater, usually comes from ,electroplating, production process, eg. plating cleaning, plating solution filter. According to the different types of plating ,wastewater, can be divided, containing ,wastewater,, chromium-containing ,wastewater, and other ,acid, waste.

Water Conservation in Metal Finishing
Water Conservation in Metal Finishing

electroplating,, the metal surface will be treated with a strong ,acid, (pickling) ... ,Tin acid, 500 ,Tin, alkaline 70-340 Gold cyanide 260-1,300 Nickel ,acid, 640 Zinc ,acid, 630 ... ,wastewater, generation, ,wastewater, treatment chemical use, and sludge generation. Artistic

(PDF) Integrated Treatment Scheme for Rubber Thread ...
(PDF) Integrated Treatment Scheme for Rubber Thread ...

The high BOD and COD ratio of ,the waste, - ,water, (0.78 to 0.90) indicates that the rubber wastewater is biodegradable and ,can be treated, effectively by an anaerobic digestion process commonly ...

METHOD FOR INTEGRATED TREATMENT OF ELECTROPLATING ...
METHOD FOR INTEGRATED TREATMENT OF ELECTROPLATING ...

A method for integrated treatment of ,electroplating wastewater, includes steps of: adjusting and maintaining pH of ,wastewater, at 10.5-12; oxidizing pollutants such as sodium cyanide and hydroxyl-containing organic amine complexants with sodium hypochlorite; precipitating carboxyl-containing organic ,acid, complexants with synergistic effect of ferrous and calcium ions; reducing hexavalent ...

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