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Current status of fracturing flowback fluid treatment 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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Current status of fracturing flowback fluid treatment technology
Highly efficient oxidation of chromium (III) with hydrogen ...
Highly efficient oxidation of chromium (III) with hydrogen ...

Hydrogen peroxide (H 2 O 2) is widely used in the treatment of wastewater as an oxidant like the Fenton-like method (Li et al. 2018; Wang & Liu 2018; Xu et al. 2018; Zhao et al. 2018). H 2 O 2 reacts with transition metal ions to generate ·OH according to Equations ( 1 ) and ( 2 ), which can be treated as the mechanism of Fenton-like reaction ( Rahim Pouran et al. 2016 ; Wang et al. 2016 ).

Hydrogen Peroxide Storage Handling and Safety ...
Hydrogen Peroxide Storage Handling and Safety ...

16/12/2020, · Tiny amounts of gaseous ,hydrogen peroxide, occur naturally in the air around us. Pure ,hydrogen peroxide, is denser than water; it freezes at minus 0.43°C (31.3°F) and boils at 150.2°C (302°F). ,Hydrogen peroxide, is biochemically formed in human bodies and the bodies of other animals but it is actually toxic to cells.

Decomplexation of electroplating wastewater by ozone-based ...
Decomplexation of electroplating wastewater by ozone-based ...

In this work, four ozone-based advanced oxidation processes, O 3, O 3 /H 2 O 2, O 3 /UV and O 3 /H 2 O 2 /UV to decomplex electroplating wastewater were investigated and their performance compared., Ethylenediaminetetraacetic acid (EDTA), and citric acid are the most common components of electroplating wastewater.

REMOVAL OF SELENIUM FROM REFINERY WASTEWATER - …
REMOVAL OF SELENIUM FROM REFINERY WASTEWATER - …

4. The method of claim 1 in which the pH is lowered by the addition of sulfuric ,acid, HCl, H 3 PO 4, and any combination thereof. 5. The method of claim 1 in which the ,ferric, salt is selected from the group consisting of ,ferric sulfate,, ,ferric, chloride, ferrous ,sulfate,, ferrous …

A novel technique of COD removal from electroplating ...
A novel technique of COD removal from electroplating ...

18/2/2020, · The effect of the current concentration (I V), initial pH (pH 0), and the addition of ,hydrogen peroxide, (30% H 2 O 2) was discussed on the optimal process parameters. In pH 0 2.0 ,wastewater,, applying current concentration of 1 A dm −3 , the addition 20 cm 3 dm −3 30% H 2 O 2 , the removal efficiency of COD reached 94.21% and the residual COD in ,wastewater, was only 60 mg dm −3 after 90 …

SOLUTION FOR WASTEWATER PROBLEM RELATED TO …
SOLUTION FOR WASTEWATER PROBLEM RELATED TO …

Oxidants other than chlorine can also be used to destroy cyanide. ,Hydrogen peroxide, and potassium permanganate have been used to oxidize cyanide-containing ,wastewater, (Renzo De 1981). The residual cyanide is less than one ppm. Operating costs are high and sludge disposal problems are there. Treatment with ozone

Processes | Free Full-Text | Photochemical Oxidation ...
Processes | Free Full-Text | Photochemical Oxidation ...

The photochemical ,oxidation, process of Cu from ,electroplating wastewater, has been investigated. It is shown that the UV-Ozone process has high performance on Cu removal compared to UV and Ozone processes due to the high production rate of HO• radicals as the oxidant and due to the direct ,oxidation, …

Treatment of highly acidic wastewater containing high ...
Treatment of highly acidic wastewater containing high ...

1/10/2017, · In the next phase, the addition of ,hydrogen peroxide, (30% w/w) (H 2 O 2) was done and COD degradation was evaluated by varying the dosage of H 2 O 2. Maximum COD removal efficiencies of 48.83% was observed at J = 750 A/m 2, t = 150 min, pH o = 0.3. This method produced very low or no amount of sludge and scum.

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Subject: "ferric sulfate" - PubAg Search Results

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Water Treatment Chemicals Equipment & Service - Hawkins
Water Treatment Chemicals Equipment & Service - Hawkins

Hawkins carries a wide selection of ,water treatment chemicals, and products that are reliable, high quality, and cost effective. ,Water treatment chemicals, from the Hawkins Water Treatment Group include a complete range of chemical formulas specifically designed for water treatment applications in municipal drinking water, municipal ,wastewater,, industrial and additional industries.

(PDF) Characterization and treatment of electroplating ...
(PDF) Characterization and treatment of electroplating ...

Oxidation, of chlorinated phenols using Fenton's reagent (,hydrogen peroxide, and ferrous iron catalyst) both oxidize and dechlorinate phenol species. The kinetics of the Fenton's ,oxidation, of the ...

Hydrogen Peroxide Storage Handling and Safety ...
Hydrogen Peroxide Storage Handling and Safety ...

16/12/2020, · Tiny amounts of gaseous ,hydrogen peroxide, occur naturally in the air around us. Pure ,hydrogen peroxide, is denser than water; it freezes at minus 0.43°C (31.3°F) and boils at 150.2°C (302°F). ,Hydrogen peroxide, is biochemically formed in human bodies and the bodies of other animals but it is actually toxic to cells.

Original Research Combined Wastewater Treatment from ...
Original Research Combined Wastewater Treatment from ...

well as techniques of advanced ,oxidation, with the use of ozone, ,hydrogen peroxide,, UV radiation and Fenton’s reagents [23,24]. ... in which ,acidic, sewage is mixed after digestion in ... of ,electroplating wastewater, treatment from manganese phosphate coating by coagulation using iron ...

Reduction of Hexavalent Chromium by H2O2 in Acidic ...
Reduction of Hexavalent Chromium by H2O2 in Acidic ...

The values of k2 (M -(n+z) min -1) are given by k2 = k/ [H +] z = k1 / [H 2 O 2] n [H +] z, where k is the overall rate constant (M -n min -1) and k1 is the pseudo-first-order rate constant (min -1 ). The values of k in the pH range 2−4 have been fitted to the equation log k = 2.14pH − 2.81 with σ = ± 0.18.

Processes | Free Full-Text | Photochemical Oxidation ...
Processes | Free Full-Text | Photochemical Oxidation ...

The photochemical ,oxidation, process of Cu from ,electroplating wastewater, has been investigated. It is shown that the UV-Ozone process has high performance on Cu removal compared to UV and Ozone processes due to the high production rate of HO• radicals as the oxidant and due to the direct ,oxidation, …

SOLUTION FOR WASTEWATER PROBLEM RELATED TO ELECTROPLATING …
SOLUTION FOR WASTEWATER PROBLEM RELATED TO ELECTROPLATING …

Oxidants other than chlorine can also be used to destroy cyanide. Hydrogen peroxide and potassium permanganate have been used to oxidize cyanide-containing wastewater (Renzo De 1981). The residual cyanide is less than one ppm. Operating costs are high and sludge disposal problems are there. Treatment with ozone

Microbial metabolism - Wikipedia
Microbial metabolism - Wikipedia

Microbial metabolism, is the means by which a microbe obtains the energy and nutrients (e.g. carbon) it needs to live and reproduce.Microbes use many different types of metabolic strategies and species can often be differentiated from each other based on metabolic characteristics. The specific metabolic properties of a microbe are the major factors in determining that microbe's ecological niche ...

Workplace Safety and Health Guidelines
Workplace Safety and Health Guidelines

Electroplating, waste has to be chemically reduced or oxidised prior to discharge ... like ,hydrogen peroxide, (H 2 O 2). 6 toxic industrial waste treatment Neutralisation ... ,wastewater,. Neutralisation of an ,acidic, waste stream can cause precipitation of heavy metals.

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