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Removal of phosphorus and fluorine from acid wastewater by calcium carbonate

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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Removal of phosphorus and fluorine from acid wastewater by calcium carbonate
Pre-treatment of acetic acid from food processing ...
Pre-treatment of acetic acid from food processing ...

acid, like chemical effluents [16, 17] after the production process needs to find a way to manage waste occurring [18, 19]. If there is the contamination of acetic ,acid, in the ,wastewater,, resulting from the production process, then the high volume of ,wastewater, may affect the function of microorganisms and the performance in ,wastewater, treatment

Metal Extraction from Mine Wastewater Sludge - Leaching ...
Metal Extraction from Mine Wastewater Sludge - Leaching ...

The conventional treatment of acid mine wastewater creates large volumes of metal rich sludge. This thesis has investigated the possibility of extracting zinc and copper from said sludge. Characterization and leaching of a hydroxide sludge produced in the treatment of acid mine drainage are presented.

Extraction and recovery of methylene blue from industrial ...
Extraction and recovery of methylene blue from industrial ...

15/4/2009, · Liquid-liquid extraction (LLE) of methylene blue (MB) from industrial wastewater using benzoic acid (extractant) in xylene has been studied at 27 degrees C. The extraction of the dye increased with increasing extractant concentration. The extraction abilities have been studied on benzoic acid concentration in the range of 0.36-5.8x10(-2) M.

Journal of Environmental Research And Development Vol. 8 ...
Journal of Environmental Research And Development Vol. 8 ...

based solvent ,extraction,, emulsion liquid membrane separation etc. Ion exchange resins, in general and weak base resins, in particular, are most commonly employed for lower concentrations. ,Wastewater, streams containing low concentrations of acids are invariably encountered in ,acid, manufacturing plants,

Journal of Environmental Research And Development Vol. 8 ...
Journal of Environmental Research And Development Vol. 8 ...

based solvent ,extraction,, emulsion liquid membrane separation etc. Ion exchange resins, in general and weak base resins, in particular, are most commonly employed for lower concentrations. ,Wastewater, streams containing low concentrations of acids are invariably encountered in ,acid, manufacturing plants,

The method of extraction of sorbic acid
The method of extraction of sorbic acid

The closest in technical essence to the invention is a method of extraction of sorbic acid from waste water using anion exchange resins [2] the Known method includes the sorption of sorbic acid on anion-exchange resin, subsequent regeneration of the alkali solution, the precipitation of sorbic acid from the alkaline solution of the sorbate sodium acid cleaning technical sorbic acid to the quality of commercial …

Pre-treatment of acetic acid from food processing ...
Pre-treatment of acetic acid from food processing ...

acid, like chemical effluents [16, 17] after the production process needs to find a way to manage waste occurring [18, 19]. If there is the contamination of acetic ,acid, in the ,wastewater,, resulting from the production process, then the high volume of ,wastewater, may affect the function of microorganisms and the performance in ,wastewater, treatment

Solvent Extraction of Wastewaters from Acetic-Acid Manufacture
Solvent Extraction of Wastewaters from Acetic-Acid Manufacture

----- FIGURES Number Page 1 Recovery of butyl acetate from water by steam-stripping 4 2 Schematic of phenosolvan process 6 3 Volatile-solvent ,extraction, process 9 4 Dual-solvent ,extraction, process 10 5 ,Extraction, of acetic ,acid, by di-tridecyl amine in various diluents 47 6 ,Extraction, of acetic ,acid, by Alamine 336 in various diluents 53 7 ,Extraction, equilibria for 50 vol % Alamine 336 ketone ...

Research Article Extraction of Oleic Acid from Moroccan ...
Research Article Extraction of Oleic Acid from Moroccan ...

tions, farming methods, and the oil ,extraction, mode []. e main physicochemical characteristics of the olive mill ,wastewater, of the region of Fes Boulemane [] are given in Table . e physicochemical characterization of OMW of the region of Fes Boulemane shows that this e uent has an ,acid, pH value, with a very high chemical oxygen demand

EFFECT OF ACID AND ULTRASONICATION PRE-TREATMENTS ON …
EFFECT OF ACID AND ULTRASONICATION PRE-TREATMENTS ON …

Zhu et al. investigated the performance of three different ,extraction, methods (,acid, hydrolysis ,extraction,, soxhlet ,extraction,, and the water bath shaking ,extraction,) and compared the lipid yields obtained from sewage sludge. They also studied the effects of different organic solvents on ,extraction, efficiency. They concluded that Soxhlet

Method 1658: The Determination of Phenoxy-Acid Herbicides ...
Method 1658: The Determination of Phenoxy-Acid Herbicides ...

Extraction,. 2.1.1. The percent solids content of a sample is determined. 2.1.2. Samples containing low solids: If the solids content is less than or equal to 1%, the sample is extracted directly using continuous ,extraction, techniques. The pH of a 1-L sample is raised to 12 to 13 to hydrolyze ,acid, …

Research Article Extraction of Oleic Acid from Moroccan ...
Research Article Extraction of Oleic Acid from Moroccan ...

tions, farming methods, and the oil ,extraction, mode []. e main physicochemical characteristics of the olive mill ,wastewater, of the region of Fes Boulemane [] are given in Table . e physicochemical characterization of OMW of the region of Fes Boulemane shows that this e uent has an ,acid, pH value, with a very high chemical oxygen demand

EFFECT OF ACID AND ULTRASONICATION PRE-TREATMENTS ON …
EFFECT OF ACID AND ULTRASONICATION PRE-TREATMENTS ON …

Extraction, method Yield (%)(a) Non-,acid,. ,Acid, US US+,Acid, Primary ,Wastewater, sludge Standard drying(b) Saponifiable 58.0 55.0 50.0 56.0 Biodiesel 13.1 13.2 10.2 14.0 Direct liquid-liquid ,extraction, Saponifiable 54.0 68.0 61.0 67.0 Biodiesel 5.6 13.1 5.5 14.0 Petrochemical Industry WWTP sludge Standard drying(b) Saponifiable 65.0 66.0 67.0 68.0

Extraction and recovery of methylene blue from industrial ...
Extraction and recovery of methylene blue from industrial ...

15/4/2009, · Liquid-liquid extraction (LLE) of methylene blue (MB) from industrial wastewater using benzoic acid (extractant) in xylene has been studied at 27 degrees C. The extraction of the dye increased with increasing extractant concentration. The extraction abilities have been studied on benzoic acid concentration in the range of 0.36-5.8x10(-2) M.

EFFECT OF ACID AND ULTRASONICATION PRE-TREATMENTS ON …
EFFECT OF ACID AND ULTRASONICATION PRE-TREATMENTS ON …

Zhu et al. investigated the performance of three different ,extraction, methods (,acid, hydrolysis ,extraction,, soxhlet ,extraction,, and the water bath shaking ,extraction,) and compared the lipid yields obtained from sewage sludge. They also studied the effects of different organic solvents on ,extraction, efficiency. They concluded that Soxhlet

Metal Extraction from Mine Wastewater Sludge - Leaching ...
Metal Extraction from Mine Wastewater Sludge - Leaching ...

The conventional treatment of acid mine wastewater creates large volumes of metal rich sludge. This thesis has investigated the possibility of extracting zinc and copper from said sludge. Characterization and leaching of a hydroxide sludge produced in the treatment of acid mine drainage are presented.

The method of extraction of sorbic acid
The method of extraction of sorbic acid

The closest in technical essence to the invention is a method of extraction of sorbic acid from waste water using anion exchange resins [2] the Known method includes the sorption of sorbic acid on anion-exchange resin, subsequent regeneration of the alkali solution, the precipitation of sorbic acid from the alkaline solution of the sorbate sodium acid cleaning technical sorbic acid to the quality of commercial …

Method 1658: The Determination of Phenoxy-Acid Herbicides ...
Method 1658: The Determination of Phenoxy-Acid Herbicides ...

Extraction,. 2.1.1. The percent solids content of a sample is determined. 2.1.2. Samples containing low solids: If the solids content is less than or equal to 1%, the sample is extracted directly using continuous ,extraction, techniques. The pH of a 1-L sample is raised to 12 to 13 to hydrolyze ,acid, …

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