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oil extraction wastewater reinjection technology systems

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 extraction wastewater reinjection technology systems
INSTRINSICALLY ANTIMICROBIAL POROSIC MATRIX COMPOSITES …
INSTRINSICALLY ANTIMICROBIAL POROSIC MATRIX COMPOSITES …

In further embodiments, the solid pore-forming substance comprises ,sodium, sulfate, sugars (such as glucose, trehalose, fructose and many others), dissolvable or meltable natural polymers, dissolvable or meltable artificial polymers or salts comprising ammonium, calcium, magnesium, potassium, lithium, iron, aluminum and other metals and cations, pyridinium, quaternary, ammonium, ,sodium,, ,acetate, ...

Montmorillonite immobilized Fe/Ni bimetallic prepared by ...
Montmorillonite immobilized Fe/Ni bimetallic prepared by ...

The pH of the suspension liquid was adjusted to 6.8 using ,sodium acetate, buffer solution (0.5 M, pH = 5) and added 700 mL deionized water to the solution. pH was maintained for 30 min, then the ...

handboook of chemical
handboook of chemical

Free essays, homework help, flashcards, research papers, book reports, term papers, history, science, politics

Treatment of highly acidic wastewater containing high ...
Treatment of highly acidic wastewater containing high ...

1/10/2017, · Treatment methodologies reported in the literature to treat the acidic wastewater include, chemical, addition,, advanced oxidation processes (AOP), ,, catalytic peroxidation, ,, Fenton method, ,, electrochemical oxidation, , ,, electro-Fenton method, ,, sono-chemical, and, photochemical processes, .

Destruction of Cresols by Fenton Oxidation Process (1 ...
Destruction of Cresols by Fenton Oxidation Process (1 ...

The present study was used to probe the ,treatment, of simulated ,wastewater, containing cresols by Fenton process. Experiments were conducted in a batch reactor to examine the effects of operating variables like pH, hydrogen peroxide concentration (H 2 O 2) and ferrous ion concentration (Fe 2 +) on chemical oxygen demand (COD) removal.The progress of the degradation reaction was monitored by …

Desalination and Water Treatment
Desalination and Water Treatment

6/7/2015, · The pH of the aqueous solutions was adjusted with 0.1 mol L −1 of HClO 4 or NaOH solution for pH 6.0–7.0, and buffered with ,sodium acetate,–acetic ,acid, solution (10 mM) for pH 4.0–5.0, borate solution (10 mM) for pH 8.0–9.0, and borax ,sodium, hydroxide solution (10 mM) for pH 10.0, respectively.

zhen2017.pdf | Electrochemistry | Hydrogen | Free 30-day ...
zhen2017.pdf | Electrochemistry | Hydrogen | Free 30-day ...

carbon cloth cycle 68 § 3% MREC Two- ,Sodium, H + H2 Stainless 0.6 mg Pt cm ¡2 Five pairs 1.6 m3 m¡3- g CE: 86%; [163] chamber ,acetate, steel mesh of CEMs anolyte d¡1 hE: 64% and AEMs; flow rate: 0.8 mL min¡1 Two- ,Acetate, CO2 Methane Stainless 0.5 mg Pt cm¡2 Six pairs 0.60 § 0.01 g CE: 75 § 2%; [53] chamber (CH4) steel mesh of CEMs and mol¡1-,acetate, hE: 7.0 § 0.3% AEMs SPMFC Two ...

Handbook of Environmental Analysis: Chemical Pollutants in ...
Handbook of Environmental Analysis: Chemical Pollutants in ...

Acid treatment, liberates oxalic ,acid,, which is titrated with a standard permanganate or Ce4+ solution. Nitrous ,acid, (HNO2) is another 70 Handbook of Environmental Analysis suitable reducing agent. It may be analyzed by ,treatment, with a measured excess of permanganate solution. Nitrous ,acid, oxidizes to nitrate and the excess permanganate is back ...

pH In Wastewater Treatment Alkalinity In Wastewater Treatment
pH In Wastewater Treatment Alkalinity In Wastewater Treatment

The acid molecules react with the alkalinity which results in the acid molecules being neutralized, therefor when adding acid to a solution with alkalinity, the pH stays constant until the alkalinity is consumed. This is the reason adding, acidic water treatment, chemicals consumes alkalinity.

spectrophotometric ph titrations: Topics by Science.gov
spectrophotometric ph titrations: Topics by Science.gov

The relative standard deviation for 11 replicate determinations of 400 mg l(-1) ascorbic ,acid, was 2.9%. The second system, for acetic ,acid, determination, was based on ,acid,-base titration of acetic ,acid, with ,sodium, hydroxide using phenolphthalein as an indicator.

Destruction of Cresols by Fenton Oxidation Process (1 ...
Destruction of Cresols by Fenton Oxidation Process (1 ...

The present study was used to probe the ,treatment, of simulated ,wastewater, containing cresols by Fenton process. Experiments were conducted in a batch reactor to examine the effects of operating variables like pH, hydrogen peroxide concentration (H 2 O 2) and ferrous ion concentration (Fe 2 +) on chemical oxygen demand (COD) removal.The progress of the degradation reaction was monitored by …

Full article: Characterization and immobilization of ...
Full article: Characterization and immobilization of ...

13/7/2015, · An amount of modified bead (0.05 g) was added to 2.5 ml of the laccase solution (2 mg/ml), and the immobilization reaction was accomplished in a rotary shaker for 4 h at 25°C. The beads were washed with 0.05 M ,acetate, buffer and were stored in ,acetate, buffer at 4°C until use.

Immobilised enzymes in biorenewables production - Chemical ...
Immobilised enzymes in biorenewables production - Chemical ...

Oils, fats, carbohydrates, lignin, and amino acids are all important raw materials for the production of ,biorenewables,. These compounds already play an important role in everyday life in the form of wood, fabrics, starch, paper and rubber. Enzymatic reactions do, in principle, allow the transformation of the Enzyme immobilisation

Determination of Toxic Organic Chemicals In Natural Waters ...
Determination of Toxic Organic Chemicals In Natural Waters ...

The sample solutions were added with 10% (w/w) ,sodium, sulphate and adjusted to pH 4.0 by acetic ,acid and sodium acetate, buffer solution to improve the purge efficiency before the analysis. A CP-4010 purge-and-trap injector was used to purge methyl tert-butyl ether from water and cool it in the cold-trap kept at 75 C, then the cooled trap was flash heated to release the analytes onto a HP-1 ...

Water Chemistry - U
Water Chemistry - U

Find the training resources you need for all your activities. Studyres contains millions of educational documents, questions and answers, notes about the course, tutoring questions, cards and course recommendations that will help you learn and learn.

zhen2017.pdf | Electrochemistry | Hydrogen | Free 30-day ...
zhen2017.pdf | Electrochemistry | Hydrogen | Free 30-day ...

carbon cloth cycle 68 § 3% MREC Two- ,Sodium, H + H2 Stainless 0.6 mg Pt cm ¡2 Five pairs 1.6 m3 m¡3- g CE: 86%; [163] chamber ,acetate, steel mesh of CEMs anolyte d¡1 hE: 64% and AEMs; flow rate: 0.8 mL min¡1 Two- ,Acetate, CO2 Methane Stainless 0.5 mg Pt cm¡2 Six pairs 0.60 § 0.01 g CE: 75 § 2%; [53] chamber (CH4) steel mesh of CEMs and mol¡1-,acetate, hE: 7.0 § 0.3% AEMs SPMFC Two ...

spectrophotometric ph titrations: Topics by Science.gov
spectrophotometric ph titrations: Topics by Science.gov

The relative standard deviation for 11 replicate determinations of 400 mg l(-1) ascorbic ,acid, was 2.9%. The second system, for acetic ,acid, determination, was based on ,acid,-base titration of acetic ,acid, with ,sodium, hydroxide using phenolphthalein as an indicator.

(PDF) Novel Passive Co-Treatment of Acid Mine Drainage and ...
(PDF) Novel Passive Co-Treatment of Acid Mine Drainage and ...

TECHNICAL TECHNICAL REPORTS: WASTE MANAGEMENT REPORTS Novel Passive Co-,Treatment of Acid, Mine Drainage and Municipal ,Wastewater, William H. J. Strosnider,* Brandon K. Winfrey, and Robert W. Nairn A laboratory-scale, four-stage continuous-flow reactor system was constructed to test the viability of high-strength ,acid, mine ,A cid, mine drainage (AMD) and municipal ,wastewater, (MWW) are prevalent across the globe, and their ,treatment, …

Handbook of Environmental Analysis: Chemical Pollutants in ...
Handbook of Environmental Analysis: Chemical Pollutants in ...

Acid treatment, liberates oxalic ,acid,, which is titrated with a standard permanganate or Ce4+ solution. Nitrous ,acid, (HNO2) is another 70 Handbook of Environmental Analysis suitable reducing agent. It may be analyzed by ,treatment, with a measured excess of permanganate solution. Nitrous ,acid, oxidizes to nitrate and the excess permanganate is back ...

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