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Treatment and discharge of fracturing flowback fluid

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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Treatment and discharge of fracturing flowback fluid
EFFECT OF ACETIC ACID ON POLLUTANT DECOMPOSITION IN ...
EFFECT OF ACETIC ACID ON POLLUTANT DECOMPOSITION IN ...

For washing wastewater-2 with initial COD of 350 mg O 2/dm 3, the applied doses of acetic acid were 0.4, 0.8, 2.1, 4.2 and 8.3 cm3/dm . The doses of both ferric sulfate and hydrogen peroxide were lower amounting to 1.6 g/dm 3 and 20 cm/dm , respectively. The values of COD in the wastewater before and after the Fenton process are shown in Fig. 2.

Treatment of Wastewater from Purified Terephtalic Acid ...
Treatment of Wastewater from Purified Terephtalic Acid ...

Higher strength influent ,COD, concentration above 4.8 g-,COD,/L related to field conditions was fed to observe the disturbance of the EGSB reactors. Keywords: Anaerobic ,treatment,, Expanded granular sludge bed (EGSB), Purified terephtalic ,acid, (PTA), Two-phase, ,Wastewater

Evaluation of Adsorption Isotherms and Industrial ...
Evaluation of Adsorption Isotherms and Industrial ...

Wastewater Treatment, for ,COD, Reduction Using ,Acid, Impregnated Peanut Shell Activated Carbon Abubakar Abdussalam 1* 1Department of Pure and Industrial Chemistry, Bayero University, P.M.B. 3011 Kano, Nigeria. Author’s contribution The sole author designed, analyzed and interpreted and prepared the manuscript. Article Information

Chemical Industry Wastewater Treatment Using Adsorption
Chemical Industry Wastewater Treatment Using Adsorption

effective ,wastewater treatment, technique for complying with the statutory regulations. The approach foll owed in the evaluation of adsorption performance of different adsorbents viz. acti va ted carbon, bentonite, and lignite in the ,treatment, of ,wastewater, is thus based on detection ,of COD, and

Wastewater Treatment Fact Sheet: External Carbon Sources ...
Wastewater Treatment Fact Sheet: External Carbon Sources ...

Wastewater Treatment Fact Sheet: External Carbon Sources for Nitrogen, Removal. ... the ,wastewater treatment, process and soluble ,COD, generally foundin the influent ,wastewater, ... such as glycerol, acetic ,acid,, and the MicroC™ suite of products can be

Performance Evaluation of Brewery Biological Wastewater ...
Performance Evaluation of Brewery Biological Wastewater ...

Biological ,treatment, method like anaerobic and aerobic ,treatment, results in removal of high ,COD, and BOD present in ,wastewater, [4,3]. ,Wastewater, from brewery doesn’t contain adequate quantity of nitrogen required for biological oxidation due to which external nitrogen nutrients are required to be added into the aeration basins [11].

Treatment of Combined Acid Black 48 and Coffee Wastewater ...
Treatment of Combined Acid Black 48 and Coffee Wastewater ...

Treatment, of Combined ,Acid, Black 48 and Coffee ,Wastewater, by ... thetic dyes used in the textile industry. With dyes, coffee ,wastewater, has high ,chemical oxygen demand, (,COD,) that can affect dissolved oxygen (DO) ... dye ,wastewater treatment, process is …

COD - Elimination by UV-Oxidation in Wastewater Treatment
COD - Elimination by UV-Oxidation in Wastewater Treatment

COD,-elimination in ,wastewater, by batch ,treatment, Degradation of highly concentrated and recalcitrant ,COD, ind ,wastewater, If ,COD, in concentrated ,wastewater, has to be lowered or specifically changed in chemical charcacter, we recommend the optimized batch …

Study of COD Removal Rate on a Sequencing Batch Reactor ...
Study of COD Removal Rate on a Sequencing Batch Reactor ...

Pretreatment was done by (1) adjustment of tapioca ,wastewater, pH to control (4.92), 7, and 8, and (2) tapioca ,wastewater, prechlorination at pH 8 during hour using calcium hypochlorite in variation dosages 0, 2, 4, 6 mg/L Cl 2, SBR operation was conducted according to following steps: (1) Filling of pre-treated ,wastewater, into a bioreactor during 1 hour, and (2) aeration of the mixture of ...

Converting Chemical Oxygen Demand (COD) of Cellulosic ...
Converting Chemical Oxygen Demand (COD) of Cellulosic ...

27/1/2017, · ,Wastewater, streams from different fermentation processes had been tried, including glutamic ,acid, fermentation ,wastewater, , municipal ,wastewater, , and distillery ,wastewater, . Of the ,COD, in ethanol fermentation ,wastewater, from sweet potato, 72.3% was reduced by oleaginous yeast Rhodosporidium toruloides Y2 with 1.33 g/L of lipid formation [ 13 ].

Winery and distillery wastewater treatment by anaerobic ...
Winery and distillery wastewater treatment by anaerobic ...

In the acidogenic phase, the soluble ,COD, removal yield is 24% and the hydraulic resi-dence time (HRT) was 20 to 38 hours. The organic loads of the anaerobic filter are between 4.6 to 11 kg ,of COD,/m3/d with an average yield of 70%. The organic load of the aerobic post-,treatment, is 1.3 kg ,COD,/m3/d. The ,COD, removal yield of the overall process was

Solutions for the treatment of wastewater with refractory COD
Solutions for the treatment of wastewater with refractory COD

The competitive range for Evaporation would be 4-100 kg ,COD,/m 3, as indicated in figure 1.In addition, after 50 kg ,of COD,/m 3, when OHP is no longer able to operate due to an autothermal reaction, that would mean having to cool the reactor which could pose a risk.. Summary. There are different procedures for the ,treatment, of refractory ,COD, in effluents that occur in certain types of industries.

Wastewater Treatment Fact Sheet: External Carbon Sources ...
Wastewater Treatment Fact Sheet: External Carbon Sources ...

Wastewater Treatment Fact Sheet: External Carbon Sources for Nitrogen, Removal. ... the ,wastewater treatment, process and soluble ,COD, generally foundin the influent ,wastewater, ... such as glycerol, acetic ,acid,, and the MicroC™ suite of products can be

COAGULATION AND FLOCCULATION TREATMENT OF WASTEWATER …
COAGULATION AND FLOCCULATION TREATMENT OF WASTEWATER …

anionic suspended particles and reduce the levels ,of Chemical Oxygen Demand, (,COD,) and turbidity in textile industry ,wastewater,. The optimum conditions for this study were at 30 mg/l of chitosan, pH 4 and 20 minutes of mixing time with 250 rpm of mixing rate for 1 minute, 30rpm of mixing rate for 20 minutes and 30 minutes of settling time.

Treatment Technologies for Organic Wastewater | IntechOpen
Treatment Technologies for Organic Wastewater | IntechOpen

17/11/2011, · The amount of organic compounds in ,wastewater, is generally evaluated by ,chemical oxygen demand, (,COD,) test, biological oxygen demand (BOD) test, and (TOC) test. The basis for the ,COD, test is that nearly all organic compounds can be fully oxidized to carbon dioxide with a strong oxidizing agent under acidic conditions.

Wastewater COD - Why it is Critical in Wastewater Treatment?
Wastewater COD - Why it is Critical in Wastewater Treatment?

Wastewater COD, (,Chemical Oxygen Demand,) is the amount of oxygen necessary to oxidize the organic carbon completely to CO2 and H2O. Some organic chemicals are not completely oxidized. However, ,COD, is measured in approximately 3 hours via oxidation with potassium dichromate (K2Cr2O7) in the presence of Sulfuric ,Acid, and Silver Sulphate.

Treatment of terephthalic acid plant wastewater with an ...
Treatment of terephthalic acid plant wastewater with an ...

Anaerobic ,treatment, of terephthalic ,acid, plant ,wastewater, with a lab-scale downflow tubular fixed film reactor achieved 75% ,of COD, removal with a HRT of 3.4 days at 33°C. The raw ,wastewater, from a petrochemical plant was settled and neutralized prior to reactor feeding. The responses to shock loads and to periods without feeding

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