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Color of fracturing flowback fluid

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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Color of fracturing flowback fluid
Electro-Oxidation–Plasma Treatment for Azo Dye Carmoisine ...
Electro-Oxidation–Plasma Treatment for Azo Dye Carmoisine ...

2.1. ,Azo Dye, Carmoisine (,Acid, Red 14) Solution A test solution of ,azo dye, Carmoisine was prepared with distilled water at a concentration of 5 mgL1 from a stock solution of ,azo dye, Carmoisine (50 mgL1). The used ,azo dye, Carmoisine was Sigma-Aldrich 98%. All the solutions were prepared with the use of amber glass volumetric material.

Advanced Oxidation Processes in Azo Dye Wastewater Treatment
Advanced Oxidation Processes in Azo Dye Wastewater Treatment

electrolyte,, was applied to treat dye wastewater. Gao et al. (2003) have documented that the addition of ferrous salt significantly enhances process efficiency, leading to complete decolorization in a few minutes. The Fenton process includes application of Fenton reagent, which is a strong oxidative mixture of ferrous salts and hydrogen peroxide (H202).

Textile Dyeing Wastewater Treatment - IntechOpen
Textile Dyeing Wastewater Treatment - IntechOpen

dyeing ,wastewater, analysis of production and pollution is based on these two fibers. Pre-treatment of cotton includes desizing and scouring. The main pollutants are the impurities in the cotton, cotton gum, hemicellulose and the slurry, alkali in weaving process. The current average COD concentration in the pre-treatment is 3000 mg/L. The main

Effective Treatment Systems for Azo Dye Degradation: A ...
Effective Treatment Systems for Azo Dye Degradation: A ...

Practically most of the accepted physico-chemical and biological techniques have been explored for treatment of extremely recalcitrant ,dye wastewater,; none, however, has emerged as a panacea. A single universally applicable end-of-pipe solution appears to be unrealistic, and combination of appropriate techniques is deemed imperative to devise technically and economically feasible options.

Exploration of the Binding Properties of the Azo Dye ...
Exploration of the Binding Properties of the Azo Dye ...

Azo dye,. Binding energy (kcal mol –1) 1. ,Acid, Blue 29 –42.7. 2. ,Acid, Orange 5 –32.6. 3. ,Acid, Orange 7 –30.1. 4. ,Acid, Orange 8 –32.2. 5. ,Acid, Orange 52 –28.3. 6. Blue 113 –55.2. 7. Direct Blue 71 –67.3. 8. Hydrolyzed Reactive Black 5H –30.2. 9. Hydrolyzed Reactive Orange 16H –32.6. 10. Hydrolyzed Reactive Orange 107H –27.0

Effective Treatment Systems for Azo Dye Degradation: A ...
Effective Treatment Systems for Azo Dye Degradation: A ...

Practically most of the accepted physico-chemical and biological techniques have been explored for ,treatment, of extremely recalcitrant ,dye wastewater,; none, however, has emerged as a panacea. A single universally applicable end-of-pipe solution appears to be unrealistic, and combination of appropriate techniques is deemed imperative to devise technically and economically feasible options.

(PDF) Oxidative treatment of azo dyes in aqueous solution ...
(PDF) Oxidative treatment of azo dyes in aqueous solution ...

However, after 24 h of treatment, complete mineralization of the dye solutions, cannot be achieved by using 5-fold excess concentration of permanganate. In fact, this method could be used as a pre-treatment process for the mineralization of azo dye solutions. It can be combined with the other methods to degrade wastewater completely.

Dyes and their removal technologies from wastewater: A ...
Dyes and their removal technologies from wastewater: A ...

1/1/2021, · The need of, backwashing, flushing,, and, rinsing, during, restoration, of, ion-exchange media, confines the practicality of ion exchange for wastewater treatment. Although charged dye substances can be removed by this process, the system is not extremely compatible for the removal of dye system .

Effective Treatment Systems for Azo Dye Degradation: A ...
Effective Treatment Systems for Azo Dye Degradation: A ...

However, during post-,treatment, of anaerobically treated ,azo dye, containing ,wastewater,, there will be competition between biodegradation and autoxidation of aromatic amines. This may be problematic not only because the formed products are colored but also because some of these compounds, e.g., azoxy compounds, may cause toxicity.

A critical review on advances in the practices and ...
A critical review on advances in the practices and ...

The ,dye, industrial ,wastewater treatment, proce-dures are a unique key feature in effective trading of ,dye, ... use ,of strong, alkaline (18–24% by weight) solution ... (3.19% N) ,azo dye, is the most toxic to growth

Post-treatment of anaerobically degraded azo dye Acid Red ...
Post-treatment of anaerobically degraded azo dye Acid Red ...

The degradation processes have been considered in several researches release of colored wastewaters in the environment even at low con- [12–14]. centrations of water soluble ,azo, dyes (10–50 mg/L) not only is a Due to the large degree of complex aromatics present in ,azo, matter for aesthetic point of view, but also leads to the reduction in dyes molecules and also ,strong, electron-withdrawing property sunlight penetration diminishing the photosynthesis and oxygen of the ,azo, …

Textile dye wastewater characteristics and constituents of ...
Textile dye wastewater characteristics and constituents of ...

27/11/2018, · Ong et al. (2009, 2010) studied the ability of an up-flow CW for treatment of, artificial textile wastewater, comprising 50 and 100 mg/l of the azo dye AO7. The synthetic textile wastewater consisted of ammonium nitrate, magnesium chloride hexahydrate, calcium chloride dihydrate, sodium benzoate, sodium acetate, potassium phosphate and sodium chloride.

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 ...

Treatment of Dye Effluent by Electrochemical and ...
Treatment of Dye Effluent by Electrochemical and ...

removal efficiencies the removal of colour of methyl red azo dye is a challenge in textile industry. The fol-lowing methods have been adopted for the treatment of real textile wastewater: 1) Electro-oxidation (EO) and 2) Bio-treatment (BT). In EO process, reduction of COD and …

Treatment of azo dye wastewater by the self-flocculating ...
Treatment of azo dye wastewater by the self-flocculating ...

1/8/2020, · As to, azo dyes wastewater treatment,, fungi (Wang et al., 2017) and bacteria (Bose et al., 2018, Zhuang et al., 2020), has been applied to mediate, azo wastewater treatment,. But the high salinity and toxicity of, azo dyes wastewater, seriously inhibited biological metabolism, leading to poor performance of biotreatment ( Pernetti and Di Palma, 2005 ).

Textiles Wastewater Treatment
Textiles Wastewater Treatment

best treatment method as 10% color remained after 10 min of treatment, ii) wastewater decolorization was not significantly affected by textile wastewater matrix, and iii) using multiple AOPs did not contribute to synergistic or additive treatment effects. The authors concluded that AOPs can produce readily usable brine solution for next textile

Effective Treatment Systems for Azo Dye Degradation: A ...
Effective Treatment Systems for Azo Dye Degradation: A ...

However, during post-treatment of anaerobically treated ,azo dye, containing ,wastewater,, there will be competition between biodegradation and autoxidation of aromatic amines. This may be problematic not only because the formed products are colored but also because some of these compounds, e.g., azoxy compounds, may cause toxicity.

Frontiers | Degradation of Azo Dye (Acid Orange 7) in a ...
Frontiers | Degradation of Azo Dye (Acid Orange 7) in a ...

More than 80% of ,wastewater, from industries is discharged into receiving water bodies without any pollution control. Microbial fuel cells (MFCs) are a promising technology for the simultaneous ,treatment, of ,wastewater, and electricity production. With regard to ,azo,-,dye, containing ,wastewater, (e.g., from textile manufacturing), the ,dye, may be fed via the anode chamber containing electrochemically ...

Study on the treatment of simulated azo dye wastewater by ...
Study on the treatment of simulated azo dye wastewater by ...

The purpose of this study was to investigate the feasibility of using micro-electrolysis technology for the, treatment, of, azo dye-containing wastewater., Methyl orange, one of the most commonly used azo dyestuffs, was selected as the simulated printing and dye, wastewater,.

Exploration of the Binding Properties of the Azo Dye ...
Exploration of the Binding Properties of the Azo Dye ...

Acid, Blue 29, ,Acid, Orange 5, ,Acid, Orange 7,... Exploration of the Binding Properties of the ,Azo Dye, Pollutants with Nitrogen‐Doped Graphene Oxide by Computational Modeling for ,Wastewater Treatment, Improvement - Hezarkhani - 2019 - ChemistrySelect - Wiley Online Library

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