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low permeability oilfield oil producing wastewater reinjection technology

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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low permeability oilfield oil producing wastewater reinjection technology
Simultaneous removal of acidity and lead from acid lead ...
Simultaneous removal of acidity and lead from acid lead ...

sulfuric acid. Wastewater from acid lead battery manufacturing or recycling industries contains mainly H 2SO 4 at a pH of 1.2 - 3 and soluble Pb2+ ions at a concentration of 5 - 15 mg L-1. Neutralization with alkaline substances, such as sodium hydroxide, sodium carbonate, lime or dolomite can adjust

2 Wastewater Treatment by using Natural Coagulant
2 Wastewater Treatment by using Natural Coagulant

NaOH and 0.1 M of HCl were used to ,adjust, the ,pH, level to desired ,pH value, of the ,wastewater,. 2.5 Coagulation Activity The optimum condition of coagulation process is where the least dosage of coagulant is needed and the ,pH value, of the condition that can yield the wanted flocs and contributing to clean water. The ,pH

Efficient Synthesis of α-FeOOH from Pickling Wastewater in ...
Efficient Synthesis of α-FeOOH from Pickling Wastewater in ...

The purified pickling water was mixed with distilled water to ,adjust, its ferrous concentration to 0.5 mol/L. The ,pH, of the purified pickling water is around 2–3; alkali was added to ,adjust, the initial ,pH, to 5. During the reaction process, no alkali was added to observe the ,pH value, of the solution changes over time.

PHYSICAL AND CHEMICAL WASTEWATER TREATMENT METHODS
PHYSICAL AND CHEMICAL WASTEWATER TREATMENT METHODS

Neutralization may be used in order to treat acid wastewaters containing metals, the method comprising increasing the pH of the acid waste by addition of an alkaline reagent, to form a precipitate and collecting the precipitate. This way the incoming solution is pH adjusted to the optimum range for precipitating metals as hydroxides.

Immediate pH Correction For Fluctuating Flow
Immediate pH Correction For Fluctuating Flow

When trying to ,adjust, a ,pH, dosing pump based on attenuating flow, a ratio flow control loop can be used. This will need to be combined with a PID loop using ,pH, as the process ,value,. When the two outputs are combined using only a scaled ,value, of fifty present on each, the result will be the desired full range.

STANDARD METHODS FOR THE EXAMINATION OF WATER AND WASTEWATER
STANDARD METHODS FOR THE EXAMINATION OF WATER AND WASTEWATER

Use one sample at the original ,pH,; ,adjust pH, of the other to 7.6 by using sulfuric ,acid, (H 2 SO 4) and sodium hydroxide (NaOH) of such concentrations that the resulting volume change does not exceed 3%. A standard ,pH, is necessary because of the variation of colour with ,pH,. Remove excessive quantities * Celite No. 505, Manville Corp., or ...

Influence of Wastewater PH on Turbidity
Influence of Wastewater PH on Turbidity

Influence of ,Wastewater PH, on Turbidity Harashit Kumar Mandal ... suspended substance in printing ,wastewater, treatment by regulating the ,pH value, of water treatment. Firstly, ... the ,pH, range of the sample, ,adjust, the selector switch to either 0-7 or 7-14. Read the ,pH, of the sample.

STANDARD METHODS FOR THE EXAMINATION OF WATER AND WASTEWATER
STANDARD METHODS FOR THE EXAMINATION OF WATER AND WASTEWATER

Use one sample at the original ,pH,; ,adjust pH, of the other to 7.6 by using sulfuric ,acid, (H 2 SO 4) and sodium hydroxide (NaOH) of such concentrations that the resulting volume change does not exceed 3%. A standard ,pH, is necessary because of the variation of colour with ,pH,. Remove excessive quantities * Celite No. 505, Manville Corp., or ...

Standard Analytical Procedures for Water Analysis
Standard Analytical Procedures for Water Analysis

Adjust pH, from about 9 to about 2.9 with 1 + 1 acetic ,acid, (approximately 2 mL will be required). Dilute with water to 100 mL. g. Working dye solution: Dilute 10.0 mL of stock dye solution to 100 mL in a volumetric flask with water. Stable for at least 6 months. h. Bromcresol green indicator, ,pH, 4.5, solution: Dissolve 100 mg bromcresol green ...

Efficient Synthesis of α-FeOOH from Pickling Wastewater in ...
Efficient Synthesis of α-FeOOH from Pickling Wastewater in ...

adjust, its ferrous concentration to 0.5 mol/L. The ,pH, of the purified pickling water is around 2−3; alkali was added to ,adjust, the initial ,pH, to 5. During the reaction process, no alkali was added to observe the ,pH value, of the solution changes over time. It can be seen from Figure 2 that the ,pH, of solution

Efficient Synthesis of α-FeOOH from Pickling Wastewater in ...
Efficient Synthesis of α-FeOOH from Pickling Wastewater in ...

adjust, its ferrous concentration to 0.5 mol/L. The ,pH, of the purified pickling water is around 2−3; alkali was added to ,adjust, the initial ,pH, to 5. During the reaction process, no alkali was added to observe the ,pH value, of the solution changes over time. It can be seen from Figure 2 that the ,pH, of solution

PHYSICAL AND CHEMICAL WASTEWATER TREATMENT METHODS
PHYSICAL AND CHEMICAL WASTEWATER TREATMENT METHODS

Neutralization may be used in order to treat acid wastewaters containing metals, the method comprising increasing the pH of the acid waste by addition of an alkaline reagent, to form a precipitate and collecting the precipitate. This way the incoming solution is pH adjusted to the optimum range for precipitating metals as hydroxides.

Standard Analytical Procedures for Water Analysis
Standard Analytical Procedures for Water Analysis

Adjust pH, from about 9 to about 2.9 with 1 + 1 acetic ,acid, (approximately 2 mL will be required). Dilute with water to 100 mL. g. Working dye solution: Dilute 10.0 mL of stock dye solution to 100 mL in a volumetric flask with water. Stable for at least 6 months. h. Bromcresol green indicator, ,pH, 4.5, solution: Dissolve 100 mg bromcresol green ...

Simultaneous removal of acidity and lead from acid lead ...
Simultaneous removal of acidity and lead from acid lead ...

sulfuric acid. Wastewater from acid lead battery manufacturing or recycling industries contains mainly H 2SO 4 at a pH of 1.2 - 3 and soluble Pb2+ ions at a concentration of 5 - 15 mg L-1. Neutralization with alkaline substances, such as sodium hydroxide, sodium carbonate, lime or dolomite can adjust

Alkalinity Adjustments in my Wastewater Treatment Plant ...
Alkalinity Adjustments in my Wastewater Treatment Plant ...

The use of the following chemicals will address and ,adjust, Alkalinity issues in your plants. Magnesium Hydroxide, Lime Slurry. Soda Ash. Caustic Soda. With so many options for treating alkalinity, there are three main options that are typically represented in the marketplace for ,Wastewater, Treatment Plants (WWTP) when faced with this question: ...

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