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High acid organic 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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High acid organic wastewater
Smelting and Refining Operations - ILO Encyclopaedia
Smelting and Refining Operations - ILO Encyclopaedia

Metal-containing process ,water, and rainwater are cleaned in ,water,-treatment plants before discharging or recycling. Solid-phase wastes include slags from smelting, blowdown slurries from sulphur dioxide conversion to sulphuric ,acid, and sludges from surface impoundments (e.g., sedimentation ponds).

Environmental Guidelines for Nickel Smelting and Refining
Environmental Guidelines for Nickel Smelting and Refining

mercury. Large quantities of ,water, are used for ,slag, granulation, but the majority should be recycled. Solid wastes and sludges The smelter contributes a ,slag, that is a dense silicate. Sludges that require disposal will result where neutralized process effluents produce a …

Treatment of Industrial Effluents: Primary Secondary and ...
Treatment of Industrial Effluents: Primary Secondary and ...

When lime and ferrous sulphate are added to ,water,, the ferrous hydroxide is formed in the form of flocs. FeSO 4 .7H 2 O + Ca (OH) 2 → Fe (OH) 2 + CaSO 4 + 7H 2 O. 4Fe (OH) 2 + O 2 + 2H 2 O → 4Fe (OH) 3. Ferric hydroxide Fe (OH) 3 is a floe which settles down and removes all the colloidal impurities in ,water,.

Techniques to correct and prevent acid mine drainage: A review
Techniques to correct and prevent acid mine drainage: A review

In brief, mine ,waste, covers can decrease oxygen and ,water, penetration, and thus ,reduce, the oxidation of sulfide minerals and/or the transport of hazardous compounds. Inorganic covers can be combined with sludges to improve sealing properties and soil physical conditions and to promote vegetation cover, which is essential to prevent erosion and to improve the aesthetic appearance of the area [31].

How to Control Pollution in Iron and Steel Industry?
How to Control Pollution in Iron and Steel Industry?

(iv) ,Waste, acids, solutions and rinse waters from finishing processes. Approximately 70% of the ,water, used for steel industry is spent for cooling purposes alone and contains a heat equivalent of 75 kwh/tonne of crude steel processed. ,Water, must be cooled and techniques are …

The effect of industrial wastewater pollution - Free ...
The effect of industrial wastewater pollution - Free ...

Waste water, is applied continuously at about 10 gpd,ft2 (0.4m/day) ... This was used as ,dilution water, 3ml of sample under investigation was added into a clear BOD bottle of about 300ml capacity and made up to 300ml with the ,dilution water,. ... ,after, getting the volume of ,acid, used, ...

Environmental Guidelines for Nickel Smelting and Refining
Environmental Guidelines for Nickel Smelting and Refining

mercury. Large quantities of ,water, are used for ,slag, granulation, but the majority should be recycled. Solid wastes and sludges The smelter contributes a ,slag, that is a dense silicate. Sludges that require disposal will result where neutralized process effluents produce a …

Method for stabilization of lead smelter slag and matte ...
Method for stabilization of lead smelter slag and matte ...

The extract solution is made up from 5.7 ml of glacial acetic ,acid, and 64.3 ml of 1.0 normal sodium hydroxide up to 1000 ml ,dilution, with reagent ,water,. Suitable ,water, leach tests include the Japanese leach test which tumbles 50 grams of composited ,waste, sample in 500 ml of ,water, for 6 hours held at pH 5.8 to 6.3, followed by centrifuge and 0.45 micron filtration prior to analyses.

Method for stabilization of lead smelter slag and matte ...
Method for stabilization of lead smelter slag and matte ...

The extract solution is made up from 5.7 ml of glacial acetic ,acid, and 64.3 ml of 1.0 normal sodium hydroxide up to 1000 ml ,dilution, with reagent ,water,. Suitable ,water, leach tests include the Japanese leach test which tumbles 50 grams of composited ,waste, sample in 500 ml of ,water, for 6 hours held at pH 5.8 to 6.3, followed by centrifuge and 0.45 micron filtration prior to analyses.

Treatment of Industrial Effluents: Primary Secondary and ...
Treatment of Industrial Effluents: Primary Secondary and ...

When lime and ferrous sulphate are added to ,water,, the ferrous hydroxide is formed in the form of flocs. FeSO 4 .7H 2 O + Ca (OH) 2 → Fe (OH) 2 + CaSO 4 + 7H 2 O. 4Fe (OH) 2 + O 2 + 2H 2 O → 4Fe (OH) 3. Ferric hydroxide Fe (OH) 3 is a floe which settles down and removes all the colloidal impurities in ,water,.

Method for wet stabilization of material or waste to ...
Method for wet stabilization of material or waste to ...

A method of reducing the solubility of selenium bearing material or ,waste,, comprising contacting selenium bearing material or ,waste, with ,water, and at least one stabilizing agent in an amount effective in reducing the leaching of selenium from the material or ,waste, to a level no more than 1.0 ppm Se as determined in an EPA TCLP test, performed on the stabilized material or ,waste,, as set forth in the …

BLAST FURNACE SLAG SLURRIES MAY HAVE LIMITS FOR OIL …
BLAST FURNACE SLAG SLURRIES MAY HAVE LIMITS FOR OIL …

These additions increased viscosity in all samples tested. Mud thinners must be used to ,reduce, the viscosity before the ,slag, is added. The thinners were used with varying degrees of difficulty.

Effluent Treatment Plant Design Operation And Analysis Of ...
Effluent Treatment Plant Design Operation And Analysis Of ...

Brine treatment systems are typicallyoptimized to either ,reduce, the volume of the final discharge for more economic disposal (asdisposal costs are often based on volume) or maximize the recovery of fresh ,water, or salts.Brine treatment systems may also be optimized to ,reduce, electricity consumption, chemicalusage, or physical footprint.Brine treatment is commonly encountered when treating cooling tower blow down, producedwater from steam assisted gravity drainage (SAGD), produced ,water, …

Techniques to correct and prevent acid mine drainage: A review
Techniques to correct and prevent acid mine drainage: A review

In brief, mine ,waste, covers can decrease oxygen and ,water, penetration, and thus ,reduce, the oxidation of sulfide minerals and/or the transport of hazardous compounds. Inorganic covers can be combined with sludges to improve sealing properties and soil physical conditions and to promote vegetation cover, which is essential to prevent erosion and to improve the aesthetic appearance of the area [31].

Method of production of aluminum sulfate
Method of production of aluminum sulfate

Slag containing alumina, washed from salt load in the reactor 1, add water and sulfuric acid, are cooking for 1.5 hours the resulting solution was filtered in a vacuum filter 2, the remaining sand is washed with water and use as a building material. The purified solution is fed into the mold 3 and cooled.

Waste solidification/stabilization of lead–zinc slag by ...
Waste solidification/stabilization of lead–zinc slag by ...

The leaching method in this standard was used to simulate the leaching process of industrial ,waste after, entering into sanitary landfill. All samples were crushed into particles smaller than 9.5 mm, and then stirred for 18 ± 2 h with acetic ,acid, solution at a pH of 2.64 ± 0.05 in sealed containers. The liquid to solid ratio was kept at 20.

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