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acidification fracturing flow-back fluids separation techniques associated

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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acidification fracturing flow-back fluids separation techniques associated
Decolorization of dyeing wastewater and characterization ...
Decolorization of dyeing wastewater and characterization ...

Dyeing wastewater, from the textile printing and ,dyeing, industry can cause aesthetical problems and impede light penetration, which greatly upsets biological processes in surface water (Rajkumar & Kim 2006; Santhy & Selvapathy 2006; Gul & Silah 2014).In addition, due to its high color and large amount of chemical oxygen demand, ,dyeing wastewater, is considered as a considerable source of ...

ENGINEERING PROPERTIES OF SOIL CONTAMINATED WITH …
ENGINEERING PROPERTIES OF SOIL CONTAMINATED WITH …

The silk, dyeing, liquid effluents have the most serious impacts, since discharged wastewater contains a fairly high proportion of chemical dyes[2,7]. In the process of silk dyeing, various chemicals such as sulphonic acid, syndet (synthetic detergents) acetic acid, phenyl phenol, benzoic acid, phenyl methyl carbinol, common salts, wetting agent,

(PDF) Ozonation of Textile Dyeing Wastewater - A Review
(PDF) Ozonation of Textile Dyeing Wastewater - A Review

The ozonation of synthetic ,wastewater, containing azo dye Acid Red 14 (AR 14) was investigated in a high-throughput microporous tube-in-tube microchannel reactor.

POLICY BRIEF
POLICY BRIEF

Among these, the most problematic dyes are the ones used widely, brightly coloured, water soluble, reactive, disperse, acidic, and metal complexed. The textile wastewater effluent contains odour, colour, high amounts of chemical reagents, suspended and dissolved solids, high BOD and COD, causing damage to the environment and human health.

Catalytic Oxidation of Dyeing Wastewater by Copper Oxide ...
Catalytic Oxidation of Dyeing Wastewater by Copper Oxide ...

31/10/2020, · The, dyeing, industry is one of the seriously water-polluted industries in China. The amount of, wastewater, generated from such industry is relatively large, and most of the, dye, in the, wastewater, is toxic, carcinogenic and hard to be biodegraded (Feng et al. 2012; Li et al. 2019).

Ozonation of Textile Dyeing Wastewater — A Review
Ozonation of Textile Dyeing Wastewater — A Review

1 to 20 % of dyes are released along the ,wastewater, which contribute to the colour [33]. It is observed that ,wastewater, from many textile units are less biodegradable (BOD/COD<0.3) since most of the

Dye - Wikipedia
Dye - Wikipedia

A ,dye, is a colored substance that chemically bonds to the substrate to which it is being applied. This distinguishes dyes from pigments which do not chemically bind to the material they color. The ,dye, is generally applied in an aqueous solution, and may require a mordant to improve the fastness of the ,dye, on the fiber.. Both dyes and pigments are colored, because they absorb only some ...

Study of Fenton Oxidation Process on Dyeing Wastewater and ...
Study of Fenton Oxidation Process on Dyeing Wastewater and ...

Synthetic, dyeing wastewater, . The composition and characteristics of synthetic, wastewater, is given in table 1. Four different dyes were used individually to prepare, wastewater, of each, dye., The dyes used were: Colocid Rhodamine B Conc, (acidic dye),, Colocid Yellow FG (reactive, dye),, Coralene Yellow C4G (disperse, dye), and Corafast Blue G (azo, dye).

Textile dyeing industry an environmental hazard
Textile dyeing industry an environmental hazard

They may be are very toxic and may have a high impact on the ,wastewater, quality. Natural dyestuffs require large quantities of water for dyeing. (Almost equal to or double that of the fiber’s own weight).

Removal of Dyes from Textile Industrial Wastewater using ...
Removal of Dyes from Textile Industrial Wastewater using ...

Wastewater, containing dyes is very difficult to treat, since the dyes are recalcitrant organic molecules, resistant to aerobic digestion, ... Tai-Lee Hu (1996) stated that adsorption of reactive dyes by bacterial cells is significant particularly under ,acidic, conditions. Mohan, S.V.and Karthikeyan, J., ...

Decolorization of Dyeing Wastewater Using Polymeric ...
Decolorization of Dyeing Wastewater Using Polymeric ...

29/2/2012, · The ,wastewater, produced by a reactive dyeing contains [2,3]: (i) hydrolyzed reactive dyes not fixed on the substrate, representing 20-30% of the reactive dyes applied (on average 2 g/L) (this residual amount is responsible for the coloration of the effluents and cannot be recycled); (ii) dyeing auxiliaries or organic substances, which are non-recyclable and responsible for the high BOD/COD of ...

Decolorization of Dyeing Wastewater Using Polymeric ...
Decolorization of Dyeing Wastewater Using Polymeric ...

29/2/2012, · The ,wastewater, produced by a reactive ,dyeing, contains [2,3]: (i) hydrolyzed reactive dyes not fixed on the substrate, representing 20-30% of the reactive dyes applied (on average 2 g/L) (this residual amount is responsible for the coloration of the effluents and cannot be recycled); (ii) ,dyeing, auxiliaries or organic substances, which are non-recyclable and responsible for the high BOD/COD of …

Treatment of dyeing wastewater by combined sulfate radical ...
Treatment of dyeing wastewater by combined sulfate radical ...

1/1/2021, · Physicochemical characteristics of dyeing ,wastewater, are provided in Table 1. It can be observed from the table that dissolved solid concentration is 2104 mg/L. Higher dissolved solid concentration in the ,wastewater, is a favourable condition for electrochemical treatment of ,wastewater,.

Textile dyeing and textile wastewater treatment ...
Textile dyeing and textile wastewater treatment ...

Since non-polar dyes are primarily used in supercritical CO2 ,dyeing, further development is required to enhance the ,dyeing, of natural fibers with ionic dyes such as acid dyes or reactive dyes because the affinity of natural textiles with dyes occurs by chemical (covalent bonds) interactions or fixed by physical (van der waals) forces.20-21 Kraan et al. (2003) reported four factors that influence the role of supercritical CO2 ,dyeing, …

Textile Wastewater Treatment: A Critical Review
Textile Wastewater Treatment: A Critical Review

discharge huge amounts of highly colored ,wastewater, as the uptake of these dyes by fabrics is very poor. This highly colored textile ,wastewater, severely affects photosynthetic function in plant but also has an adverse effect on aquatic life due to low light penetration and …

Textile dyeing and textile wastewater treatment ...
Textile dyeing and textile wastewater treatment ...

Since non-polar dyes are primarily used in supercritical CO2 dyeing further development is required to enhance the dyeing of natural fibers with ionic dyes such as acid dyes or reactive dyes because the affinity of natural textiles with dyes occurs by chemical (covalent bonds) interactions or fixed by physical (van der waals) forces.20-21 Kraan et al. (2003) reported four factors that influence the role of …

(PDF) Textile Dyeing Wastewater Treatment | Mustafa ...
(PDF) Textile Dyeing Wastewater Treatment | Mustafa ...

Fabric printing and dyeing ,wastewater, It is adjusted for the fabric printing and dyeing ,wastewater,, including bleaching, mercerization, dyeing, resin processing, washing, drying and so on. The requirements using BPT (best practical control tech.) to treat the fabric printing and dyeing ,wastewater, has been shown in Table 6 (“Discharge standard of water pollutants for dyeing and finishing of textile industry”).

US20130256218A1 - Printing and dyeing wastewater treatment ...
US20130256218A1 - Printing and dyeing wastewater treatment ...

A ,printing and dyeing wastewater treatment and reuse apparatus, includes a coarse filter, a regulation pool, a hydraulic sieve, a desulfurization pool, a nanocatalytic electrolyzer, a flocculation pool, a flocculation tank, a settling pool, a flotation device, a biochemical pool, a secondary settling pool, a secondary nanocatalytic electrolyzer, a fine filter, a compressor, a nanomembrane assembly, and a …

Textile dyeing industry an environmental hazard
Textile dyeing industry an environmental hazard

They may be are very toxic and may have a high impact on the wastewater quality. Natural dyestuffs require large quantities of water for dyeing. (Almost equal to or double that of the fiber’s own weight).

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