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oil field fracturing flow-back fluids separation definition chemistry

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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oil field fracturing flow-back fluids separation definition chemistry
Decolourization of textile dye effluents
Decolourization of textile dye effluents

72 Summary Conventional technologies to treat textile ,wastewater, include combinations of biological, physical and chemical methods, but require high capital and operating costs Biological treatments can efficiently remove dyes from large volumes of ,wastewater, at low cost Need of the day is to substitute hazardous chemicals by using environment friendly methods Best approach to reduce ,wastewater, …

Biosorptive Decontamination of Acid Red-87 Dye from ...
Biosorptive Decontamination of Acid Red-87 Dye from ...

affecting man through the food chain [3]. ,Acid Red,-87 ,dye, (Eosin) is an acidic ,dye, and is commonly used for dyeing wools, cotton, silk, leather, papers and nylon. This ,dye, may be harmful by inhalation, in contact with skin, and if swallowed [1]. Various ,treatment, methods and technologies have been reported in literature to remove such effluents.

Treatment of Acid Dyeing Wastewater With Trioctylamine by ...
Treatment of Acid Dyeing Wastewater With Trioctylamine by ...

The trioctylamine and kerosine was used as complexing agent and diluent agent separately to extract ,acid red G, in dyeing ,wastewater, and ,acid, dyeing ,wastewater,.The effects of dosing quantity of diluent,phase ratios,pH on the extraction efficiency was studied,when the concentration of CODCr was 1526 mg/L,the extraction rate of the ,dye, contained in the ,wastewater, can reach 94.09% while the ...

CN103755088A - Treatment method of acid dye mother liquor ...
CN103755088A - Treatment method of acid dye mother liquor ...

The invention discloses a ,treatment, method ,of acid dye, mother liquor ,wastewater,. According to the ,treatment, method, the collected ,acid dye, mother liquor ,wastewater, is subjected to acidification, microelectrolysis, flocculation, concentration and crystallization and separation, thereby obtaining high-quality sodium salt damp products, and the sodium salt damp products can be recycled to ...

Synergetic treatment of dye contaminated wastewater using ...
Synergetic treatment of dye contaminated wastewater using ...

Synergetic ,treatment, of ,dye contaminated wastewater using microparticles functionalized with carbon nanotubes,/titanium dioxide nanocomposites† Zheng Lian,abc Chaohui Wei,d Bin Gao,e Xiaogang Yang,b Yue Chan,f Jing Wang,,g, George Zheng Chen, dh Kai Seng Koh,i Yong Shi,bc Yuying Yan,cj Yong Ren, *bc Jun He *d and Fu Liu *k The highly e fficient ,treatment, of azo ,dye, contaminated ,wastewat er, from ...

Advanced Oxidation Processes: A Powerful Treatment Option ...
Advanced Oxidation Processes: A Powerful Treatment Option ...

9/8/2019, · Advanced oxidation processes (AOPs) are the technologies that generally use the hydroxyl radicals, the ultimate oxidant for the remediation of organic contaminants in ,wastewater,. These are highly effective novel methods speeding up the oxidation process. AOP can combine with ozone (O3), catalyst, or ultraviolet (UV) irradiation to offer a powerful ,treatment, of ,wastewater,.

Biosorptive Decontamination of Acid Red-87 Dye from ...
Biosorptive Decontamination of Acid Red-87 Dye from ...

affecting man through the food chain [3]. ,Acid Red,-87 ,dye, (Eosin) is an acidic ,dye, and is commonly used for dyeing wools, cotton, silk, leather, papers and nylon. This ,dye, may be harmful by inhalation, in contact with skin, and if swallowed [1]. Various ,treatment, methods and technologies have been reported in literature to remove such effluents.

Relevance of Toxicity Assessment in Wastewater Treatments ...
Relevance of Toxicity Assessment in Wastewater Treatments ...

2.1. ,Dye, and Chemicals. Basovit ,Red, 440 E (C 20 H 14 O 7 N 2 S 2 Na 2, Figure 1), which is the commercial name of C.I. ,Acid Red, 14 , was purchased from Sigma Aldrich (Spain) and used without further purification. It is chemically classified as monoazo, with bluish ,red, color, molecular weight of 502.44 ,g,/mol, and of 516 nm.

DYE WASTEWATER TREATMENT: REMOVAL OF REACTIVE DYES …
DYE WASTEWATER TREATMENT: REMOVAL OF REACTIVE DYES …

Wastewater treatment, in textile and ,dye, industry mainly involves ,treatment, of highly colored ,wastewater, containing variety of dyes in different concentrations. The ,wastewater, needs to be treated prior to discharge by effectively removing ,dye, color in order to protect environment and as per the statutory guidelines.

Treatment of dyeing wastewater including reactive dyes ...
Treatment of dyeing wastewater including reactive dyes ...

and humans (Crini, 2006). It is well known that the ,treatment, of dyeing ,wastewater, is very difficult due to the complex aro - matic structure and synthetic origin of most dyes (Hadibarata et al., 2012). Generally, synthetic dyes can be classified as anionic (direct, ,acid, and reactive dyes), cationic (basic) and

Removal of acid red 88 from wastewater by adsorption on ...
Removal of acid red 88 from wastewater by adsorption on ...

The optimum pH for\ud ,treatment, was 4.5 which is in the acidic range. Enhancing the adsorbent dosage from 0.5 to 2.5 ,g, caused\ud increasing in removal efficiency from 73.85% to 95.85%. Decreasing in ,dye, concentration from 70 to 30\ud mg/L caused increasing in removal efficiency from 79.73% to 95.83%.

Microbial fuel cell - Wikipedia
Microbial fuel cell - Wikipedia

A ,microbial fuel cell, (MFC) is a bio-electrochemical system that drives an electric current by using bacteria and a high-energy oxidant such as O 2, mimicking bacterial interactions found in nature.MFCs can be grouped into two general categories: mediated and unmediated. The first MFCs, demonstrated in the early 20 th century, used a mediator: a chemical that transfers electrons from the ...

Synergetic treatment of dye contaminated wastewater using ...
Synergetic treatment of dye contaminated wastewater using ...

Synergetic ,treatment, of ,dye contaminated wastewater using microparticles functionalized with carbon nanotubes,/titanium dioxide nanocomposites† Zheng Lian,abc Chaohui Wei,d Bin Gao,e Xiaogang Yang,b Yue Chan,f Jing Wang,,g, George Zheng Chen, dh Kai Seng Koh,i Yong Shi,bc Yuying Yan,cj Yong Ren, *bc Jun He *d and Fu Liu *k The highly e fficient ,treatment, of azo ,dye, contaminated ,wastewat er, …

Sustainable removal of anodized aluminum dye by ...
Sustainable removal of anodized aluminum dye by ...

13/8/2020, · cationic (Basic Violet 16), anionic (Direct Blue 71, ,Acid, Blue 40, and Reactive Blue 29) and non-ionic (Disperse Brown 19) dyes was tested (Kayranli, 2011). In addition, solid waste generated during drinking water ,treatment, can be applied as coagulants. ,Acid Red, 119 ,dye, removal by coagulation-floculation using two different types of waterworks

Recent trends and developments in Fenton processes for ...
Recent trends and developments in Fenton processes for ...

In another study on ,dye wastewater treatment, (Orange II ,dye,), color, TOC, and COD removal efficiencies of 91%, 36%, and 29%, respectively, were obtained after 90 min with 6 mM H 2 O 2, at pH 3, and 70 °C, using commercial FeZSM5 zeolite as the catalyst (Queirós et al., 2015); the iron concentration in the treated solution was 0.173 mg L −1, corresponding to a leaching rate of 0.13%.

Relevance of Toxicity Assessment in Wastewater Treatments ...
Relevance of Toxicity Assessment in Wastewater Treatments ...

2.1. ,Dye, and Chemicals. Basovit ,Red, 440 E (C 20 H 14 O 7 N 2 S 2 Na 2, Figure 1), which is the commercial name of C.I. ,Acid Red, 14 , was purchased from Sigma Aldrich (Spain) and used without further purification. It is chemically classified as monoazo, with bluish ,red, color, molecular weight of 502.44 ,g,/mol, and of 516 nm.

Biosorption of acid dye Benewol Red by red alga Gracilaria ...
Biosorption of acid dye Benewol Red by red alga Gracilaria ...

To evaluate the ability and potential use of ,red alga; Gracilaria fisheri, to remove ,acid dye, (Benewol ,Red,) from synthetic ,wastewater,, the optimum conditions and kinetics of this alga for ,acid dye, removal were studied. The results showed that the optimum pH for ,acid dye, removal by ,G,. fisheri was 3. The adsorption ,of acid dye, was very rapid and reached equilibrium within 6 h with adsorption...

Effects of microplastics on wastewater and sewage sludge ...
Effects of microplastics on wastewater and sewage sludge ...

15/2/2020, · ZnCl 2, NaI and CaCl 2 can be used to extract microplastics from sludge. They all rely on density-based extraction techniques, which use density differences between sludge and microplastics to separate them. When sludge samples are placed in high density salt solution, plastic particles tend to float to the surface of the solution, while denser sludge materials remain at the bottom of the ...

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