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Experiment of fracturing flowback fluid 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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Experiment of fracturing flowback fluid technology
Biological and Chemical Wastewater Treatment Processes ...
Biological and Chemical Wastewater Treatment Processes ...

2/12/2014, · ,Wastewater,, or sewage, originates from human and home wastewaters, industrial wastes, animal wastes, rain runoff, and groundwater infiltration. Generally, ,wastewater, is the flow of used water from a neighborhood. The ,wastewater, consists of 99.9% water by weight, where the remaining 0.1% is suspended or dissolved material.

Process and apparatus for treating wastewater from lead ...
Process and apparatus for treating wastewater from lead ...

Such ,acid wastewater, is usually then treated by a two-step ,neutralization,. Milk of ,lime,, caustic soda or sodium carbonate are commonly used as the neutralizing agents. In the case of precipitation with milk of ,lime,, gypsum is produced which is contaminated with lead and which must therefore be given special handling (as a hazardous waste).

Industrial waste water treatment - SlideShare
Industrial waste water treatment - SlideShare

For wastes entering biological treatment processes, the pH should be maintained between 6.5 and 9 for optimum growth of the microorganisms. Acidic wastes are commonly neutralized with waste alkaline streams, ,lime,, dolomite, ammonia, caustic soda, or soda ash. ,Lime, is the most widely used alkaline material for ,neutralization acid, wastes because of its low cost.

Method two-stage neutralization of wastewater
Method two-stage neutralization of wastewater

The ,neutralization, process ,wastewater, share sequentially in two stages to pH 6-7 by filtration under a vacuum of 0.4-0.6 kgf/cm 2 through a thin layer of fine neutralizing reagent - ferrochromium slag thickness of 0.5-2.0 mm for 1 min in the first stage and to a pH of 8.5 to 9.5 by ,neutralization, with ,lime, milk on the second level.

Tertiary Treatment – Wastewater Operator Certification ...
Tertiary Treatment – Wastewater Operator Certification ...

Coagulation – Charge ,neutralization, causes floc particles to cling together, sometimes aided by polyelectrolytes. Floculation – Gentle stirring agglomerates solids into large settleable flocs. ,Lime, Processes. Recarbonation – Carbon dioxide is dissolved in the ,wastewater after lime, …

The method of purification of sulfuric acid wastewater ...
The method of purification of sulfuric acid wastewater ...

There is also known a method of purification of sulfuric acid and hydrochloric acid wastewater containing compounds of vanadium, manganese and chromium, which includes operations neutralization water with lime milk, the precipitation of heavy metal ions by sodium sulfide and subsequent alkalization of wastewater enter the polyacrylamide and the clarification of water in settling apparatus, filtering the …

Tertiary Treatment – Wastewater Operator Certification ...
Tertiary Treatment – Wastewater Operator Certification ...

Coagulation – Charge ,neutralization, causes floc particles to cling together, sometimes aided by polyelectrolytes. Floculation – Gentle stirring agglomerates solids into large settleable flocs. ,Lime, Processes. Recarbonation – Carbon dioxide is dissolved in the ,wastewater after lime, …

Pollution prevention strategy at an H-acid manufacturing unit
Pollution prevention strategy at an H-acid manufacturing unit

(,after neutralization,) Washing of the Neutch ,filter, contributed (0.35- 0.5 m3/batch) around 1.5 per cent to the com- bined ,wastewater, discharge. This was collected in a drum of 500 litre capacity and reused in the ,neutralization, vessel as a make-up for fresh water (around 1500 litres of fresh water was used) in the ,neutralization, vessel.

Laundry wastewater treatment plant - AZU Water
Laundry wastewater treatment plant - AZU Water

Most common process is the coagulation by means of aluminium salts, such as aluminium sulphate and ,lime,, ,after neutralization, reaction with sulphuric ,acid,. A well-functioning system can get a COD removal efficiency about 85% and suspended solids reduction of about 94%.

Laundry wastewater treatment plant - AZU Water
Laundry wastewater treatment plant - AZU Water

Most common process is the coagulation by means of aluminium salts, such as aluminium sulphate and ,lime,, ,after neutralization, reaction with sulphuric ,acid,. A well-functioning system can get a COD removal efficiency about 85% and suspended solids reduction of about 94%.

Industrial waste water treatment - SlideShare
Industrial waste water treatment - SlideShare

For wastes entering biological treatment processes, the pH should be maintained between 6.5 and 9 for optimum growth of the microorganisms. Acidic wastes are commonly neutralized with waste alkaline streams, ,lime,, dolomite, ammonia, caustic soda, or soda ash. ,Lime, is the most widely used alkaline material for ,neutralization acid, wastes because of its low cost.

Pollution prevention strategy at an H-acid manufacturing unit
Pollution prevention strategy at an H-acid manufacturing unit

(,after neutralization,) Washing of the Neutch ,filter, contributed (0.35- 0.5 m3/batch) around 1.5 per cent to the com- bined ,wastewater, discharge. This was collected in a drum of 500 litre capacity and reused in the ,neutralization, vessel as a make-up for fresh water (around 1500 litres of fresh water was used) in the ,neutralization, vessel.

Neutralization Water Wastewater Treatment Plants ...
Neutralization Water Wastewater Treatment Plants ...

This effluent has low pH values. pH balancing agent (caustic or ,lime, in this case) is added to adjust the pH and also for coagulation. The effluent is then mixed for Flocculation. The flocks so formed are settled and dewatered on a Sludge Bed(or through ,Filter, Press). Treated effluent ,after, …

The method of purification of sulfuric acid wastewater ...
The method of purification of sulfuric acid wastewater ...

There is also known a method of purification of sulfuric acid and hydrochloric acid wastewater containing compounds of vanadium, manganese and chromium, which includes operations neutralization water with lime milk, the precipitation of heavy metal ions by sodium sulfide and subsequent alkalization of wastewater enter the polyacrylamide and the clarification of water in settling apparatus, filtering the …

Process and apparatus for treating wastewater from lead ...
Process and apparatus for treating wastewater from lead ...

Such ,acid wastewater, is usually then treated by a two-step ,neutralization,. Milk of ,lime,, caustic soda or sodium carbonate are commonly used as the neutralizing agents. In the case of precipitation with milk of ,lime,, gypsum is produced which is contaminated with lead and which must therefore be given special handling (as a hazardous waste).

Efficient Liquid-Solids Separation Is Critical to ...
Efficient Liquid-Solids Separation Is Critical to ...

Wastewater, that is recovered from the gypsum stack contains environmentally-challenging contaminants including residual phosphoric ,acid,, hydrofluoric ,acid,, fluosilicic ,acid,, and heavy metals. WesTech’s two-stage ,neutralization, system removes these contaminants, yielding usable plant water including a small solids effluent that offers much easier and less expensive disposal.

Neutralization Water Wastewater Treatment Plants ...
Neutralization Water Wastewater Treatment Plants ...

This effluent has low pH values. pH balancing agent (caustic or ,lime, in this case) is added to adjust the pH and also for coagulation. The effluent is then mixed for Flocculation. The flocks so formed are settled and dewatered on a Sludge Bed(or through ,Filter, Press). Treated effluent ,after, …

Method two-stage neutralization of wastewater
Method two-stage neutralization of wastewater

The ,neutralization, process ,wastewater, share sequentially in two stages to pH 6-7 by filtration under a vacuum of 0.4-0.6 kgf/cm 2 through a thin layer of fine neutralizing reagent - ferrochromium slag thickness of 0.5-2.0 mm for 1 min in the first stage and to a pH of 8.5 to 9.5 by ,neutralization, with ,lime, milk on the second level.

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