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EIA of fracturing flowback fluid in oil and gas fields

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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EIA of fracturing flowback fluid in oil and gas fields
Laboratory chemical waste - Water Corporation
Laboratory chemical waste - Water Corporation

strongly acidic or alkaline wastes; highly reactive chemicals or flammable wastes. We control the input of chemicals to our wastewater systems. This is necessary to protect the wastewater system itself, our workers within the system, the safety of the community, and to protect the environment. Waste avoidance and waste minimisation

Electrochemical technologies for wastewater treatment and ...
Electrochemical technologies for wastewater treatment and ...

EC or ECF processes are now used widely in the treatment of many types of wastewaters including dye and textile ,wastewater,, 373–377 refractory oily ,wastewater,, 378–380 municipal ,wastewater,, 381–385 manufacturing ,wastewater,, 386–388 and wastewaters with phenol, 389 toxic metals 390–393 and inorganic metals. 394–398 Bench and pilot-scale research studies on using EC and ECF technologies …

[SnS4]4- clusters modified MgAl-LDH composites for mercury ...
[SnS4]4- clusters modified MgAl-LDH composites for mercury ...

abstract. The high acidity of mercury ions (Hg2þ) contained ,wastewater, can complicate its safe disposal. MgAl- LDHs supported [SnS4] 4-clusters were synthesized for Hg2þremoval from acid ,wastewater,. The active sites of [SnS4] 4-clusters were inserted into the interlayers of …

Plating and Coating Wastewater Treatment
Plating and Coating Wastewater Treatment

Plating bath used in the plating and coating industry are generally contain hexavalent chromium, cadmium, ,nickel,, tin and other heavy metals, their effluent are ,strongly acidic, or alkaline which is composed of various pollutants.

Removing Heavy Metals From Wastewater
Removing Heavy Metals From Wastewater

process as applied to industrial ,wastewater, treatment. Definitions The following words or phrases are commonly used when discussing metal removal. Caustic - Refers to sodium hydroxide (NaOH). When caustic is added to water, the water becomes ,strongly, alkaline (pH > > 7). Concentration - The quantity of a material in a given volume of solution.

Determination of Trace Metals in Waste Water and Their ...
Determination of Trace Metals in Waste Water and Their ...

9/3/2012, · ,Nickel, is a naturally occurring element widely used in many industrial applications for the shipbuilding, automobile, electrical, oil, food and chemical industries. Although it is not harmful in low quantities, ,nickel, is toxic to humans and animals when in high concentrations. ,Nickel, can be present in ,wastewater, as a result of human activities.

Heavy Metals in Contaminated Soils: A Review of Sources ...
Heavy Metals in Contaminated Soils: A Review of Sources ...

Nickel, can also end up in surface water when it is a part of ,wastewater, streams. The larger part of all Ni compounds that are released to the environment will adsorb to sediment or soil particles and become immobile as a result. In ,acidic, soils, however, Ni becomes more mobile and often leaches down to the adjacent groundwater.

nickel recovery system chrome recovery system effluent ...
nickel recovery system chrome recovery system effluent ...

The ,strongly acidic, cation exchanger removes trivalent chromium (and other cations) while the macroracticular weak base anion exchange resin removes the haxavalent chrome. This produces deionised water which can be recycled in a closed loop system.

Method for treating heavy-metal-containing wastewater ...
Method for treating heavy-metal-containing wastewater ...

In the hydroxide method (alkali method) for treating ,wastewater containing, a heavy metal, the (generally ,acidic,) ,wastewater containing, the heavy metal is neutralized by adding an alkaline agent such as caustic soda or slaked lime thereto, whereby the heavy metal ions and hydroxide ions react together to produce a solid having a heavy metal hydroxide as a principal component thereof, and then ...

Heavy Metals in Contaminated Soils: A Review of Sources ...
Heavy Metals in Contaminated Soils: A Review of Sources ...

Nickel, can also end up in surface water when it is a part of ,wastewater, streams. The larger part of all Ni compounds that are released to the environment will adsorb to sediment or soil particles and become immobile as a result. In ,acidic, soils, however, Ni becomes more mobile and often leaches down to the adjacent groundwater.

Electroflotation for Treatment of Industrial Wastewaters ...
Electroflotation for Treatment of Industrial Wastewaters ...

The opposite condition took place in ,strongly acidic wastewater,. Alam et al. ( 2017 ) conducted electroflotation studies on effect of pH on bubbles size using Iridium dioxide-coated titanium anode, and SS 316 cathode and concluded that the neutral pH condition was in favour of smaller hydrogen bubbles whereas smaller oxygen bubbles were produced in ,acidic, solution.

Electroflotation for Treatment of Industrial Wastewaters ...
Electroflotation for Treatment of Industrial Wastewaters ...

The opposite condition took place in ,strongly acidic wastewater,. Alam et al. ( 2017 ) conducted electroflotation studies on effect of pH on bubbles size using Iridium dioxide-coated titanium anode, and SS 316 cathode and concluded that the neutral pH condition was in favour of smaller hydrogen bubbles whereas smaller oxygen bubbles were produced in ,acidic, solution.

Selective Sulphide Precipitation of Copper Nickel and ...
Selective Sulphide Precipitation of Copper Nickel and ...

2.3. ,Wastewater, solution precipitation The Last part of studies were carried out in the strong ,acidic, refinery waste solutions ,containing, 10 g/L Cu2+, 0.3 g/L Ni2+ ve 3 g/L Zn2+ ions. After pH adjustment, Na 2S were added to the main solution to initiate the precipitations. Afterward, …

Ion Exchange - SSWM
Ion Exchange - SSWM

in Industrial ,Wastewater, Treatment • Recovery of chromic acid from plating rinsewaters • Recovery of metals from acid copper-plating and ,nickel,-plating rinsewaters • Recovery of metals from mixed rinsewaters • Removal of chromates from cooling water circuits • Recovery, purification and re-use of spent acids from metal pickling and etching processes

Remediation of heavy metals in drinking water and ...
Remediation of heavy metals in drinking water and ...

wastewater containing, high concentrations of heavy metals to receiving water bodies has serious adverse environmental effects. Their occurrence and accumulation in the environment is a result of direct or *Corresponding author. E-mail: akporbo@tut.ac.za. Tel: +27(0) 12 382 3046. Fax: +27(0) 12 382 3071.

Remediation of heavy metals in drinking water and ...
Remediation of heavy metals in drinking water and ...

wastewater containing, high concentrations of heavy metals to receiving water bodies has serious adverse environmental effects. Their occurrence and accumulation in the environment is a result of direct or *Corresponding author. E-mail: akporbo@tut.ac.za. Tel: +27(0) 12 382 3046. Fax: +27(0) 12 382 3071.

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