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Treatment equipment of fracturing flowback fluid in oil field

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 equipment of fracturing flowback fluid in oil field
Effects on Effluent Quality of Industrial Waste Water ...
Effects on Effluent Quality of Industrial Waste Water ...

In PCETP, the ,wastewater, is mostly alkali wastes (high ,pH,). For this purpose, hydrochloric ,acid, (HCl) is added to maintain the ,pH, value from 7.5 to 7.8 to save the microbes used in biological treatment as well as to reduce the wastage of chemicals.[2]

Process for removing color and odor from aqueous effluent ...
Process for removing color and odor from aqueous effluent ...

The step of treatment with a primary coagulant, such as aluminum chlorohydrate, should include ,pH, control achieved by including a sufficient amount of ,pH adjusting, agent to adjust the ,pH, to be basic from above about 7.0 up to about 9.0, more preferably between about 7.5 and about 8.5.

3 MATERIALS AND METHOD
3 MATERIALS AND METHOD

of the untreated wastewater sample that is to determine the concentration or level of COD, O&G, TSS, turbidity and pH of wastewater sample. The experimental works being done by referring to the APHA standard methods. Since 1905, Standard Methods for the Examination of Water and Wastewater has represented “the best current practice of

Artificial neural network modeling of wastewater treatment ...
Artificial neural network modeling of wastewater treatment ...

1. Introduction. Potable water is essential for sustaining human life. Freshwater scarcity is a significant problem faced by the world nowadays .This is due to the limited available natural resources along with global challenges such as population growth, industrialization, and climate change .About three-quarters of the Earth’s surface is water, out of which 99% of water is available as ...

Methods for Chemical Analysis of Water and Wastes
Methods for Chemical Analysis of Water and Wastes

Procedure 8 1 Prepare two 100 ml volumes of sample by maintaining the original ,pH, of one aliquot and ,adjusting, the second aliquot as necessary to ,pH, 7 6 with sulfunc ,acid, (7 2) or sodium hydroxide (7 3) 8 2 Filter samples to remove turbidity through a 0 45 u membrane filter, glass fiber filter or other suitable media (see interferences 3 1) 8 3 ...

Efficiency of Removing Heavy Metals from Chemical Oxygen ...
Efficiency of Removing Heavy Metals from Chemical Oxygen ...

adjusting pH at different levels to remove heavy metals from wastewater derived from the COD test, and to study the efficiency of removal heavy metals from the wastewater of the laboratory derived from conducting the COD test using different amounts of alum sludge. 2. Materials and Methods This research was conducted as an

(PDF) Wastewater Engineering Treatment 5th Edition ...
(PDF) Wastewater Engineering Treatment 5th Edition ...

Wastewater Engineering Treatment 5th Edition Solutions Manual,, 2009. Roshan Varde. Download PDF

Method 8190 PHOSPHORUS TOTAL For water wastewater and ...
Method 8190 PHOSPHORUS TOTAL For water wastewater and ...

adjusting, the ,pH, to 2 or less with concentrated sulfuric ,acid, (about 2 mL per liter) and storing at 4 °C. Warm to room temperature before testing. Correct results for volume additions; see Volume Additions (Section 1) for more information. Interferences For turbid samples, use 50 mL of sample and double the reagent quantities.

Hydrothermal Synthesis of K2Ti6O13 Nanotubes/Nanoparticles ...
Hydrothermal Synthesis of K2Ti6O13 Nanotubes/Nanoparticles ...

This research evaluated EC as a DBP precursor removal strategy by quantifying redns. in total trihalomethane (TTHM) formation potential as a function of electrolysis time (2.5-17.5 min), ,pH, (6-9.1), and the type of NOM treated (5-9.1 mg-C per L spiked as humic ,acid,, fulvic ,acid,, or NOM, or initially present in the Milwaukee River).

Flotation Separation and Electrothermal Atomic Absorption ...
Flotation Separation and Electrothermal Atomic Absorption ...

The pilot trial results showed that about 80% COD in the chemical wastewater could be removed through anoxic and aerobic degradation in the biological pre-treatement section, and the residual COD...

DR/890 COLORIMETER PROCEDURES MANUAL
DR/890 COLORIMETER PROCEDURES MANUAL

Acid, Washing Bottles ... Colorimetric ,Determination,, 0 to 150 mg/L ,COD,..... 429 Colorimetric ,Determination,, 0 to 1,500 and 0 to 15,000 mg/L ,COD, ... the American ,Public Health, Association. This book is the standard reference work for water analysis.

PeCOD Chemical Oxygen Demand Analyzer | MANTECH Solutions
PeCOD Chemical Oxygen Demand Analyzer | MANTECH Solutions

The PeCOD® COD Analyzer technology is a proven performer in a variety of municipal and industrial wastewater applications. Recent studies have shown a strong correlation between the 10 minute peCOD method for testing chemical oxygen demand (COD) and standard dichromate COD (COD CR) and five-day BOD (BOD 5) methods.

Methods for Chemical Analysis of Water and Wastes
Methods for Chemical Analysis of Water and Wastes

Procedure 8 1 Prepare two 100 ml volumes of sample by maintaining the original ,pH, of one aliquot and ,adjusting, the second aliquot as necessary to ,pH, 7 6 with sulfunc ,acid, (7 2) or sodium hydroxide (7 3) 8 2 Filter samples to remove turbidity through a 0 45 u membrane filter, glass fiber filter or other suitable media (see interferences 3 1) 8 3 ...

40 CFR § 136.3 - Identification of test procedures. | CFR ...
40 CFR § 136.3 - Identification of test procedures. | CFR ...

26 Just prior to distillation, adjust the sulfuric-,acid,-preserved sample to ,pH, 4 with 1 + 9 NaOH. 27 The colorimetric reaction must be conducted at a ,pH, of 10.0 ± 0.2. 28 Addison, R.F., and R.G. Ackman. 1970. Direct ,Determination, of Elemental Phosphorus by Gas-Liquid Chromatography, Journal of Chromatograph y, 47(3):421-426.

Handbook for Sampling and Sample Preservation of Water and ...
Handbook for Sampling and Sample Preservation of Water and ...

For example, if one desires to measure the flow of water/,wastewater, through a 30.4 cm (12 inch) pipe, take a 60.8 cm (2 foot) length of 30.4 (12 inch) pipe closed at one end, and fill it up with water/,wastewater, containing a known concentration of the radioactive tracer C to obtain mi Hi curies per cubic meter (gallon).

PEER-REVIEWED ARTICLE bioresources
PEER-REVIEWED ARTICLE bioresources

93.5% and a ,chemical oxygen demand, (,COD,) ... ,By adjusting, the ,pH, of ... Determinations of SS and ,COD Determination, of SS The 100 mL flocculated ,wastewater, sample was passed through a filter membrane of 0.45 μm, which was washed 3 to 5 times with 10 mL of deionized water.

Wastewater Laboratory Procedures And Chemistry
Wastewater Laboratory Procedures And Chemistry

Mathematically, ,pH, is the logarithm of the reciprocal of the hydrogen ion concentration, or the negative logarithm of the hydrogen ion concentration. 1 . ,pH, = log TTTTV = -log (FT) For Example If a ,wastewater, has a ,pH, of 1, then the hydrogen ion concentration (H+) = 10'1 = 0.1. If ,pH, …

DR/890 COLORIMETER PROCEDURES MANUAL
DR/890 COLORIMETER PROCEDURES MANUAL

Acid, Washing Bottles ... Colorimetric ,Determination,, 0 to 150 mg/L ,COD,..... 429 Colorimetric ,Determination,, 0 to 1,500 and 0 to 15,000 mg/L ,COD, ... the American ,Public Health, Association. This book is the standard reference work for water analysis.

Effects of microplastics on wastewater and sewage sludge ...
Effects of microplastics on wastewater and sewage sludge ...

15/2/2020, · ZnCl 2, NaI and CaCl 2 can be used to extract microplastics from sludge. They all rely on density-based extraction techniques, which use density differences between sludge and microplastics to separate them. When sludge samples are placed in high density salt solution, plastic particles tend to float to the surface of the solution, while denser sludge materials remain at the bottom of the ...

Lab. Manual Environmental - Qatar University
Lab. Manual Environmental - Qatar University

Alkalinity can be defined as the ability of a water to neutralize ,acid, or to absorb hydrogen ions. It is the sum of all ,acid, neutralizing bases in the water. The bacteria and other biological entities which play an active role in ,wastewater, treatment are most effective at a neutral to slightly alkaline ,pH, of 7 to 8.

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