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Fracturing flowback fluid belongs to drilling cuttings

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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Fracturing flowback fluid belongs to drilling cuttings
Simplified Removal of Chelated Metals
Simplified Removal of Chelated Metals

bring the concentrations of copper and nickel to 1 ppm or less. TABLE I The wastewater is treated without pH adjustment. Analytical data shown in Table I indicate that the facility is meeting the set limit of < 1 ppm for both copper and nickel. Furthermore, the treatment generates

Wastewater Treatment during PCB Fabrication Process | PSPCB
Wastewater Treatment during PCB Fabrication Process | PSPCB

This process produces acidic copper-containing waste liquid, copper-containing wastewater, and ammonia. (6) Fading:, Dissolve the hardened dry film on the copper line with an aqueous solution containing sodium hydroxide or an organic solvent to expose the copper line and wash it with water., This process produces organic wastewater and waste.

14 Industrial Wastewater Treatment Principals and Ideas
14 Industrial Wastewater Treatment Principals and Ideas

Generally, alkaline mercury-,containing wastewater, is usually treated by chemical coacervation or sulfide precipitation; ,acidic, mercury-,containing wastewater, can be treated by metal reduction; low-concentration mercury-,containing wastewater, can be treated by activated carbon adsorption, chemical coacervation or activated sludge; organic mercury ,wastewater, is difficult to ,treat, and is usually ...

Why and how to treat urban wastewater? - Encyclopedia of ...
Why and how to treat urban wastewater? - Encyclopedia of ...

This total oxidation is carried out chemically by using a very strong oxidant (potassium dichromate), in a very ,acidic, environment and at about 150°C for 2 hours [5]. For raw domestic ,wastewater,, about 50% of the COD is in dissolved form and 50% in particulate form.

Clean & environmentally friendly regeneration of Fe ...
Clean & environmentally friendly regeneration of Fe ...

The spent pickling solution, which comes from the pickling process of ,iron and steel,, is indispensable in the manufacturing ,industry,. ,Iron, gets dissolved in the ,acid, solution during the pickling process. When the concentration of metal ions in the ,acid, solution accumulates to a certain value, it cannot to be

US7722841B2 - Polymeric chelant and coagulant to treat ...
US7722841B2 - Polymeric chelant and coagulant to treat ...

The present invention is directed to the use of a combination of a polymeric chelant and coagulant to ,treat, metal ,containing wastewater,. More particularly, the invention is directed at removing ,copper, from CMP ,wastewater,.

The Treatment of Copper-Containing Wastewater by ...
The Treatment of Copper-Containing Wastewater by ...

The effect of electrolysis-enhanced micro-electrolysis fluidized bed technology on treating cooper-,containing wastewater, had been systematic researched. Operation conditions including applied flow rate, voltage, solution pH and reaction time on the ,copper, ions (Cu2+) removal effect, had been studied scanning electron microscope (SEM) analysis had been used to characterize the surface features ...

Denitrification and neutralization treatment by direct ...
Denitrification and neutralization treatment by direct ...

1/12/2001, · Denitrification and neutralization treatment by direct feeding of an acidic wastewater containing copper ion and high-strength nitrate to a bio-electrochemical reactor process

Comprehensive review on wastewater discharged from the ...
Comprehensive review on wastewater discharged from the ...

The third and fourth kind of WW is generated from ,steel, plants and TPPs respectively, which are responsible for ,steel, production and electricity generation from the washed coal. The former makes metallurgical coke from coal through carbonization for further use in blast furnaces, which ultimately generates coke oven WW having highly hazardous nitrogenous, phenolic and other organic pollutants.

Research on Treating Acid Wastewater Containing Heavy Metal
Research on Treating Acid Wastewater Containing Heavy Metal

to a large number of generations of ,copper,-,containing wastewater,. If excess ,copper, is inhaled, the human digestive system will be stimulated and may lead to cirrhosis after a long-term inhalation. Lower organisms and crop will be toxic by ,copper, and appear diseases. So it is particularly important to ,treat, and recycle ,copper, before discharge [27]. Kathy indicated in 2000 that ,copper, was removed

Improving efficiency of electroplating wastewater ...
Improving efficiency of electroplating wastewater ...

Wastewater, analysis was performed to define acidity and presence of metals such as ,iron,, copper, nickel, zinc, cadmium and hexavalent chrome. The study of ,wastewater, treatment efficiency was performed in one stage using an AVS-100 unit (see Figure 2) ,and steel, ferromagnetic elements.

The Treatment of Copper-Containing Wastewater by ...
The Treatment of Copper-Containing Wastewater by ...

The effect of ,electrolysis-enhanced micro-electrolysis fluidized, bed technology on treating cooper-,containing wastewater, had been systematic researched. Operation conditions including applied flow rate, voltage, solution pH and reaction time on the ,copper, ions (Cu2+) removal effect, had been studied scanning electron microscope (SEM) analysis had been used to characterize the surface features ...

Copper removal from industrial wastewater: A comprehensive ...
Copper removal from industrial wastewater: A comprehensive ...

25/12/2017, · There are many techniques to treat different types of industrial wastewater that are contaminated with heavy metals such as copper. This article focuses on reviewing the most advanced wastewater treatment techniques, including, adsorption, membrane filtration, cementation and electrodialysis.

The waste water treatment method in PCB manufacturing-News ...
The waste water treatment method in PCB manufacturing-News ...

When ,containing, the above several PCB ,wastewater,, the ,copper, ammonia complex ,wastewater,, ink ,waste water,, comprehensive heavy metal ,waste water,, it should be shunt collected. After printing ink ,wastewater, pretreatment, mixed with the integrated ,wastewater, for subsequent treatment, after separately deal with the ,copper, ammonia complex ,wastewater, into the integrated ,wastewater, …

Heavy Metal Complexes Wastewater Treatment with Chelation ...
Heavy Metal Complexes Wastewater Treatment with Chelation ...

Because chelator can be used directly to treat acidic wastewater containing heavy metals, it is unnecessary to destroy the constitution of metal complexes preliminarily, and therefore the cost for pH adjustment can be saved and the treatment process can be simplified.

Mini Steel Mills - IFC
Mini Steel Mills - IFC

wastewater, depend on the type of ,steel,, the form-ing and finishing operations, and the quality of scrap used as feed to the process. Solid wastes, excluding EAF dust and ,waste-water, treatment sludges, are generated at a rate of 20 kg/t of ,steel, product. Sludges and scale from ,acid, pickling, especially in stainless ,steel

Treatment of Industrial Wastewater by Organic Wastes
Treatment of Industrial Wastewater by Organic Wastes

acidic, industrial wastes in the treatment of ,acidic, industrial wastes in terms of acid neutralization, sulphate and metal removal processes. Glass jars of 1.5 liter capacity (30 cm height) ,containing, bacterial consortium of different organic substrates were inoculated with dairy whey to promote SRB culture.

Research on Treating Acid Wastewater Containing Heavy Metal
Research on Treating Acid Wastewater Containing Heavy Metal

to a large number of generations of ,copper,-,containing wastewater,. If excess ,copper, is inhaled, the human digestive system will be stimulated and may lead to cirrhosis after a long-term inhalation. Lower organisms and crop will be toxic by ,copper, and appear diseases. So it is particularly important to ,treat, and recycle ,copper, before discharge [27]. Kathy indicated in 2000 that ,copper, was removed

Acid Content of Metal Pickling Baths | Hanna Instruments ...
Acid Content of Metal Pickling Baths | Hanna Instruments ...

Steel, is an alloy, or a mixture of metal and other ingredients, made ,from iron, and carbon. Typical ,steel, alloys have a carbon content of around 2.1%. ,Steel, finds use in a wide variety of different applications due to the wide range of properties ,steel, can take on during its production.

(PDF) Copper Removal from Industrial Wastewater: A ...
(PDF) Copper Removal from Industrial Wastewater: A ...

There are many techniques to treat different types of industrial, wastewater, that are, contaminated, with heavy metals such as, copper., This article focuses on reviewing the most advanced wastewater...

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