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Substances after fracturing flowback fluid treatment

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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Substances after fracturing flowback fluid treatment
BIOSORPTION OF Cr(VI) FROM SYNTHETIC WASTEWATER …
BIOSORPTION OF Cr(VI) FROM SYNTHETIC WASTEWATER …

Wastewater, was collected from after the rinsing stage of a ,nickel,/chromium electroplating unit located in ... were carried out in 250 ml Erlenmeyer flasks ,containing, 100 ml of Cr(VI) solutions at the ... Complete removal of Cr(VI) is shown under ,strongly acidic, conditions (pH<3.0), whereas negligible removal was observed when the pH ...

Constructed Wetlands and their Role in Remediation of ...
Constructed Wetlands and their Role in Remediation of ...

Constructed wetlands (CWs) are an alternative method for ,wastewater, treatment and its purification. In the past decades, CW techniques were hardly used for contamination removal [1,2], although first time in early 1950s, Dr. Kathe Seidel used constructed wetland for ,wastewater, treatment [].But evolutionary period started since the 1990s, this technique is used to treat various types of ...

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.

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.

Overview Scheme for Nickel Removal and Recovery from Wastes
Overview Scheme for Nickel Removal and Recovery from Wastes

14.2.3 Problems Associated with ,Nickel,-,Containing, Wastes ,Nickel, occurs in sea water, petroleum, and coal at trace levels, and Ni2+ present in the environment can seep into plant and animal bodies. Minor quantities of Ni2+ serve as an activator of certain enzymes and have a ben - eficial effect on humans and other organisms (Peng et al. 2014).

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 ...

Process for the catalytic treatment of wastewater ...
Process for the catalytic treatment of wastewater ...

A process is presented for the treatment of ,wastewater containing, non-volatile pollutants and volatile chemically oxidizable ... such as, ,nickel,, zinc, cadmium, mercury, arsenic, and lead. Typically the ,wastewater, stream has a ... The inherent alkalinity of limestone will neutralize and remove ,strongly acidic, gases contained in the gaseous ...

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.

Sources and Treatment of Wastewater in the Nonferrous ...
Sources and Treatment of Wastewater in the Nonferrous ...

Industrial Sources of ,Acidic Wastewater Containing, Metal 18 6. ... aluminum silver arsenic chromium copper iron mercury lead ,nickel, selenium tin cadmium manganese zinc ----- Concentration ranges reported ... These resins may be either ,strongly acidic,, weakly ,acidic,, ,strongly, basic, or weakly basic, ...

Rust Preventing Agent and Stripping Agent - 表面处理部门
Rust Preventing Agent and Stripping Agent - 表面处理部门

Not ,containing, chromium, easy ,wastewater, treatment Improve adhesion with ... Use for iron materials to strip ,nickel, plating films ,Strongly, protect materials ... Acid Copper Plating ,Acidic, Cleaner Activator Additive For Electro-polishing To Stainless Steel Alkaline Type Electroless ,Nickel, Plating Solution Batch Application Type Catalyzer ...

Overview Scheme for Nickel Removal and Recovery from Wastes
Overview Scheme for Nickel Removal and Recovery from Wastes

14.2.3 Problems Associated with ,Nickel,-,Containing, Wastes ,Nickel, occurs in sea water, petroleum, and coal at trace levels, and Ni2+ present in the environment can seep into plant and animal bodies. Minor quantities of Ni2+ serve as an activator of certain enzymes and have a ben - eficial effect on humans and other organisms (Peng et al. 2014).

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

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.

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 ...

[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 …

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