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fracturing flow-back fluids reinjection

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 flow-back fluids reinjection
Simultaneous bioremediation of cationic copper ions and ...
Simultaneous bioremediation of cationic copper ions and ...

11/2/2021, · F. vesiculosus dry biomass can be used as an effective and inexpensive biosorbent for the removal of MO and ,copper ions, from ,wastewater, effluents. References 1.

Efficiently Removal of Copper and Cadmium from Wastewater ...
Efficiently Removal of Copper and Cadmium from Wastewater ...

The main aim of this study was to use the Moringa oleifera bark with low doses as an adsorbent for the maximum removal of ,copper, (Cu) and cadmium (Cd) from ,wastewater,. ,There, are some vital parameters which influence adsorption process such as contact time, adsorbent dose, initial concentration and pH were investigated.

Industrial wastewater treatment - Wikipedia
Industrial wastewater treatment - Wikipedia

Industrial wastewater treatment, describes the processes used for treating ,wastewater, that is produced by industries as an undesirable by-product. After treatment, the treated industrial ,wastewater, (or effluent) may be reused or released to a sanitary sewer or to a surface water in the environment.. Most industries produce some ,wastewater,.Recent trends have been to minimize such production or ...

Resource utilization of pickling wastewater (waste acid)
Resource utilization of pickling wastewater (waste acid)

The acid pickling wastewater (waste acid) produced by steel rolling, metal surface treatment and heat treatment industry is mainly hydrochloric acid wastewater and sulfuric acid wastewater. The impurities in the waste acid are mainly Fe2 +, Fe3 +, and a small amount of zinc, copper and other heavy metal ions.

Selective Removal of Heavy Metal Ions from Waters and ...
Selective Removal of Heavy Metal Ions from Waters and ...

20/11/2011, · ,Copper, is present in all types of water, and its content is subject to large variations (Barceloux, 1999). The natural content of ,copper, in the river water ranges 0.9-20 μg/dm 3 and for saline waters 0.02-0.3 μg/dm 3. ,Copper, is an essential nutritional element being a vital part of several enzymes. It is one of the components of human blood.

Removing Heavy Metals From Wastewater
Removing Heavy Metals From Wastewater

4 pH - A term used to describe the ,acid,-base characteristics of water, typically measured by a pH meter. Specifically, the concentration of H+ ,ions, in water. Formally, pH is the negative logarithm of the H + concentration, i.e., pH = -log [H+].The following values indicate the

Removal of copper ions from wastewater by adsorption onto ...
Removal of copper ions from wastewater by adsorption onto ...

Removal of ,Copper Ions from Wastewater by Adsorption onto, a ,Green Adsorbent from Winemaking Wastes,. ... the surface of the AC was positively charged, so ,there, was electrostatic repulsion between the surface and the metal charge. When the pH increased ... “Ion exchange processes on weak ,acid, resins for ,wastewater, containing cooper ,ions, ...

Efficiently Removal of Copper and Cadmium from Wastewater ...
Efficiently Removal of Copper and Cadmium from Wastewater ...

The main aim of this study was to use the Moringa oleifera bark with low doses as an adsorbent for the maximum removal of ,copper, (Cu) and cadmium (Cd) from ,wastewater,. ,There, are some vital parameters which influence adsorption process such as contact time, adsorbent dose, initial concentration and pH were investigated.

Copper Removal from Electroplating Wastewater by ...
Copper Removal from Electroplating Wastewater by ...

Both the electroplating process itself and the cleaning of the coating produce a considerable amount of waste. In particular, electroplating wastewater contains a wide range of copper compounds, in addition to Fe 3+, Zn 2+, Cd 2+, Ni 2+, Cr 3+, and many other heavy metal ions.

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

(2) Cleaning: Before the PCB imaging, ,there, will be a pre-treatment process, which is to clean the ,copper, surface with a dilute sulfuric ,acid, solution and polish it with machines, in order to remove oxides. Organic ,wastewater, and sulfuric ,acid, mist gas get produced here.

Selective Removal of Heavy Metal Ions from Waters and ...
Selective Removal of Heavy Metal Ions from Waters and ...

20/11/2011, · ,Copper, is present in all types of water, and its content is subject to large variations (Barceloux, 1999). The natural content of ,copper, in the river water ranges 0.9-20 μg/dm 3 and for saline waters 0.02-0.3 μg/dm 3. ,Copper, is an essential nutritional element being a vital part of several enzymes. It is one of the components of human blood.

INSIGHT OF THE REMOVAL OF NICKEL AND COPPER IONS IN …
INSIGHT OF THE REMOVAL OF NICKEL AND COPPER IONS IN …

Insight of the Removal of Nickel and ,Copper Ions, in Fixed Bed Through ,Acid, Activation and Treatment with Sodium of Clay 1049 Brazilian Journal of Chemical Engineering Vol. 31, No. 04, pp. 1047 - 1056, October - December, 2014 spectroscopy (EDX) accessory. The samples were initially vacuum dried for approximately 12 hours.

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

(2) Cleaning: Before the PCB imaging, ,there, will be a pre-treatment process, which is to clean the ,copper, surface with a dilute sulfuric ,acid, solution and polish it with machines, in order to remove oxides. Organic ,wastewater, and sulfuric ,acid, mist gas get produced here.

Decomplexation of Electroplating Wastewater in a Higee ...
Decomplexation of Electroplating Wastewater in a Higee ...

The metal complexes ,wastewater, from electroplating industries is not as easy to be removed as metal ,ions,. In this work, the destruction of Cu, Ni and Cr complexes from electroplating by electro-oxidation was investigated. A novel higee electrochemical reactor with rotating mesh-disc electrodes was

The Ultimate Guide to Wastewater Treatment
The Ultimate Guide to Wastewater Treatment

The first IX column is taken offline to have sulphuric ,acid, (H 2 SO 4) pass through to strip the ,copper, producing a ,copper, sulphate (CuSO4) electrolytic stream from the resin. This ,copper, sulphate stream is then introduced into an electrowinning process, most conventionally with a tank and two opposing electrodes known as an anode and a cathode, and passing current through the electrolytic ...

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

sulfate and a large number of soluble heavy metal ions. Receiving water will be acidic and produce potential corrosion. Heavy metals such as zinc, copper, lead and thallium, etc. can be accumulated through food chain and result in chronic poisoning which is increasingly harmful to human being and environment [1-5].

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