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Fracturing flowback fluid of Dingbian oil production plant

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 of Dingbian oil production plant
Photocatalytic degradation of AZO dyes by supported TiO ...
Photocatalytic degradation of AZO dyes by supported TiO ...

di•erent loading content was evaluated using the photocatalytic oxidation of dyes direct fast scarlet 4BS and acid red 3B in aqueous medium. The results showed that the best reaction dosage of TiO2–zeolite catalysts is about 2 g/l and the photocatalytic kinetics follows first order for all supported catalysts.

Explanation of Mechanism of Photocatalytic Oxidation ...
Explanation of Mechanism of Photocatalytic Oxidation ...

The degradation mechanism of ,photocatalytic oxidation, to high concentrated organic contaminants ,in dye,-house effluent is expounded. Based on experiments and from study by mechanics and dynamics, the major factors influencing the rate of degradation are discussed.

Water | Free Full-Text | Dye Waste Treatment | HTML
Water | Free Full-Text | Dye Waste Treatment | HTML

The integrated sequential photocatalytic oxidation and membrane filtration were used for the treatment of dyestuff effluent . The combined effects of both heterogeneous photocatalytic oxidation and reverse osmosis membrane leads to complete decolorization of the synthetic dyestuff effluent as well as 90% reduction of initial organic content.

Photocatalytic Decolorization of Acid Red 186 Using ...
Photocatalytic Decolorization of Acid Red 186 Using ...

As the ,dye, concentration increased, rate of degradation decreased (figure- 5), may be due to following reason: As ,dye, concentration increases, number of photons ... Other. ,Photocatalytic, Decolorization ,of Acid, Red 186 Using Alternative Developed Photocatalyst MBIR Dowex 11 .

Combinative Sonolysis and Photocatalysis for Textile Dye ...
Combinative Sonolysis and Photocatalysis for Textile Dye ...

Treatment of ,dye wastewater, by using ,photo-catalytic oxidation, with sonication. Ultrasonics Sonochemistry 2007, 14 (5) , 615-620. DOI: 10.1016/j.ultsonch.2006.11.002. Faisal Ibney Hai, Kazuo Yamamoto, Kensuke Fukushi. Hybrid Treatment Systems for ,Dye Wastewater,.

(PDF) Treatment of textile dyehouse wastewater by TiO2 ...
(PDF) Treatment of textile dyehouse wastewater by TiO2 ...

this context, ,photocatalytic oxidation, may be used as an Grzechulska, J., Morawski, A.W., 2002. ,Photocatalytic, decomposi- efficient pre-treatment step to biological post-treatment tion of azo-,dye acid, black 1 in water over modified titanium of textile effluents since it does not generate toxic by- dioxide.

Explanation of Mechanism of Photocatalytic Oxidation ...
Explanation of Mechanism of Photocatalytic Oxidation ...

The degradation mechanism of ,photocatalytic oxidation, to high concentrated organic contaminants ,in dye,-house effluent is expounded. Based on experiments and from study by mechanics and dynamics, the major factors influencing the rate of degradation are discussed.

Photocatalytic degradation of AZO dyes by supported TiO ...
Photocatalytic degradation of AZO dyes by supported TiO ...

di•erent loading content was evaluated using the ,photocatalytic oxidation, of dyes direct fast ,scarlet, 4BS and ,acid, red 3B in aqueous medium. The results showed that the best reaction dosage of TiO2–zeolite catalysts is about 2 g/l and the ,photocatalytic, …

Evaluation of the photo-catalytic oxidation process with ...
Evaluation of the photo-catalytic oxidation process with ...

The pH is related to the ionization of the surface of the reactants and products in the solution, since the degradation of the ,dye, occurs by the contribution of three reaction mechanisms: the hydroxyl radical attack, direct ,oxidation, by the positive gap and the direct reduction by the electron in the conduction band (depending on the nature of the substrate).

Textiles wastewater treatment technology: A review - Deng ...
Textiles wastewater treatment technology: A review - Deng ...

The discharge of textile ,dye wastewater, represents a serious environmental problem and public health ... provided a holistic review of the various study to treat textile ,wastewater, using UV‐TiO 2 ,photocatalytic oxidation, process. ... The authors reported that 92% of the Azo ,Dye Acid Scarlet, GR was decolorized under optimal conditions within ...

Recent Advances in Heterogeneous Photocatalytic ...
Recent Advances in Heterogeneous Photocatalytic ...

As far as the wastewater treatment technologies are concerned, different techniques have been utilized for the reduction and degradation of dispersed dyes such as chemical precipitation, H 2 O 2 adsorption, oxidation by chlorine, electrochemical treatment, ozone electrolysis, adsorption, ion pair extraction, flocculation, coagulation, membrane filtration, and specially the photocatalytic process [145–147].

Effect of glucose on photocatalytic decolorization of dyes ...
Effect of glucose on photocatalytic decolorization of dyes ...

The effect of saccharides, such as glucose, on the ,photocatalytic, decolorization of various dyes has been investigated using TiO2 as a photocatalyst in an aqueous solution saturated with nitrogen. An azo ,dye,, such as Orangell, used as a typical ,dye,, was reduced by cleavage of the azo linkage, as evidenced by the production of sulfanilic ,acid,. All of the dyes tested were decomposed with first ...

Photocatalytic Decolorization of Acid Red 186 Using ...
Photocatalytic Decolorization of Acid Red 186 Using ...

The size of catalyst particle is 20-50 mesh can filter easily. The kinetics of ,photocatalytic, degradation of the ,dye, was found to follow pseudo first-order kinetics according to Langumuir-Hinshelwood model. The results showed that the ,dye, removal efficiency found 98% after 160 min of reaction time.

Evaluation of the photo-catalytic oxidation process with ...
Evaluation of the photo-catalytic oxidation process with ...

The pH is related to the ionization of the surface of the reactants and products in the solution, since the degradation of the ,dye, occurs by the contribution of three reaction mechanisms: the hydroxyl radical attack, direct ,oxidation, by the positive gap and the direct reduction by the electron in the conduction band (depending on the nature of the substrate).

A study of photocatalytic degradation of direct scarlet ...
A study of photocatalytic degradation of direct scarlet ...

By using titanium dioxide prepared with solgel processing,the feasibility of ,photocatalytic, degradation of direct ,scarlet,-,dye, polluted ,wastewater, with the help of a minute amount of H2O2 was investigated.The influence of different ,oxidation, processing,added amount and reaction time-period of H2O2,its pH-value,and initial concentration of ,wastewater, on the decolorizing rate was discussed ...

Photocatalytic Decolorization of Acid Red 186 Using ...
Photocatalytic Decolorization of Acid Red 186 Using ...

The size of catalyst particle is 20-50 mesh can filter easily. The kinetics of ,photocatalytic, degradation of the ,dye, was found to follow pseudo first-order kinetics according to Langumuir-Hinshelwood model. The results showed that the ,dye, removal efficiency found 98% after 160 min of reaction time.

Ponceau 6R dye decoloration and chromate reduction ...
Ponceau 6R dye decoloration and chromate reduction ...

Ponceau 6R, or Crystal ponceau 6R, Crystal ,scarlet,, Bril-liant crystal ,scarlet, 6R, ,Acid, red 44, or C.I. 16250, is a red * Corresponding author. Tel.: ... of ,photocatalytic, methods for the ,oxidation, of dyes in ,waste-water, using TiO ... o is the initial absorbance of Ponceau 6R ,dye, before beginning the ,oxidation, process (without oxidant), A

Comparison of Photocatalytic Activities of Two Different ...
Comparison of Photocatalytic Activities of Two Different ...

wastewater, treatments, advanced ,oxidation, processes (AOPs) can be explored as an alternative in order to reduce the ,dye, compounds [9]. Among these processes, ,photocatalytic, method (TiO 2) can play an important role in new technologies of water and ,wastewater, purification. ,Photocatalytic, …

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