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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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Profile control with fracturing fluid backflow
Removal of Dyes by Using Low Cost Adsorbents ... - IJERT
Removal of Dyes by Using Low Cost Adsorbents ... - IJERT

The ,weak, interactions occur due to the Vander Waals forces while the strong interactions occur due to (1) hydrogen bonding interaction between the nitrogen containing amine groups of CV and TGW surface (2) hydro- phobichydrophobic interactions between the hydrophobic parts of CV and TGW (3) electrostatic interaction between the cationic dye [due to the presence of N+ (CH3)2 group] and ...

Nanomaterials | Free Full-Text | Efficiency of Differently ...
Nanomaterials | Free Full-Text | Efficiency of Differently ...

In order to minimize the pollution caused by the reuse of textile dyes, technologies and materials have been developed that purify ,waste water, in an efficient and cost-effective manner before it is discharged into a water body. In this context, the presented research investigates the potential of two types of fully cellulose-based membranes as adsorbents for cationic dyes used in the textile ...

Analysis and Development of Models for Liquid Effluent ...
Analysis and Development of Models for Liquid Effluent ...

The three basic steps in cotton processing are spinning, weaving, and finishing. Cotton spinning and weaving are dry process while the finishing process are mostly wet involving ,dyeing, and ,printing,. Due to the natural and synthetic nature of textile fibrous materials, several methods of finishing operations are available for different materials.

Theory and Practice of Water and Wastewater Treatment ...
Theory and Practice of Water and Wastewater Treatment ...

18.1 Aeration in Biological ,Wastewater, Treatment 689 18.1.1 Aeration Devices in ,Wastewater, Treatment 692 Diffused Aerators 692 Surface and Other Aerators 692 18.2 Post-aeration Systems for ,Wastewater, Treatment 697 18.2.1 Diffused Aeration Systems 697 18.2.2 Cascades 699 18.2.3 Weirs 699 18.3 Type III Sedimentation: Zone Settling 700

Thermodynamics kinetics and isotherm studies on the ...
Thermodynamics kinetics and isotherm studies on the ...

Wastewater, containing synthetic dyes from the textile, food, paper making, ,printing,, leather and cosmetic industries may have major effects on living organisms due to the toxicity of these pollutants (Copaciu et al. 2013).Water bodies used to supply drinking water have become contaminated with these effluent toxicants in many developing countries.

Cost effectiveness in textile processing - Free Textile ...
Cost effectiveness in textile processing - Free Textile ...

It is sometimes advisable to add minute quantities of a ,weak, acid in final rinsing bath of washing off process. 3.2.7.4. Photochromy:

Adsorption of Congo red from solution by iron doped PVA ...
Adsorption of Congo red from solution by iron doped PVA ...

In modern times, enterprises mainly in the ,printing,, ,dyeing, industry, and paint industry have increased rapidly, which has led to the generation of a large amount of ,waste-water, containing dyes [1–3]. Untreated effluents from these industries have a deleterious effect on the environment as

Cost effectiveness in textile processing - Free Textile ...
Cost effectiveness in textile processing - Free Textile ...

It is sometimes advisable to add minute quantities of a ,weak, acid in final rinsing bath of washing off process. 3.2.7.4. Photochromy:

Removal of Dyes by Using Low Cost Adsorbents ... - IJERT
Removal of Dyes by Using Low Cost Adsorbents ... - IJERT

The ,weak, interactions occur due to the Vander Waals forces while the strong interactions occur due to (1) hydrogen bonding interaction between the nitrogen containing amine groups of CV and TGW surface (2) hydro- phobichydrophobic interactions between the hydrophobic parts of CV and TGW (3) electrostatic interaction between the cationic dye [due to the presence of N+ (CH3)2 group] and ...

Nanocellulose-Based Sustainable Dyeing of Cotton Textiles ...
Nanocellulose-Based Sustainable Dyeing of Cotton Textiles ...

The combination of NFC ,dyeing, and PCA post-treatment leads to a substantial improvement of dye fixation and reduction of dye contaminants in ,wastewater,. Notable attempts have been reported using PCA for wrinkle-resistant post-treatment on cotton and had discussed the formation of chemical crosslinks/grafts with the submicron-scale cellulose fabric fibers using maleic, itaconic, and citric acids.

Nanocellulose-Based Sustainable Dyeing of Cotton Textiles ...
Nanocellulose-Based Sustainable Dyeing of Cotton Textiles ...

The combination of NFC ,dyeing, and PCA post-treatment leads to a substantial improvement of dye fixation and reduction of dye contaminants in ,wastewater,. Notable attempts have been reported using PCA for wrinkle-resistant post-treatment on cotton and had discussed the formation of chemical crosslinks/grafts with the submicron-scale cellulose fabric fibers using maleic, itaconic, and citric acids.

Wastewater Analysis and Study of Soil Microorganisms of ...
Wastewater Analysis and Study of Soil Microorganisms of ...

It is well known that cotton mills consumelarge volume of water for various processes such as sizing, desizing, scouring, bleaching,mercerization, ,dyeing,, ,printing,, finishing and ultimately washing. Due to the nature ofvarious chemical processing of textiles, large volumes of ,waste water, …

Chemicals from A to Z
Chemicals from A to Z

Weak, base used in viscose ,dyeing, and ,printing,, in pre-treatment of cotton/PES fibres,in pigment ,printing, baths to prevent early polimerisation of binder, used instead of caustic soda and light soda ash in ,dyeing, of fibres which are resistant to alkali

Theory and Practice of Water and Wastewater Treatment ...
Theory and Practice of Water and Wastewater Treatment ...

18.1 Aeration in Biological ,Wastewater, Treatment 689 18.1.1 Aeration Devices in ,Wastewater, Treatment 692 Diffused Aerators 692 Surface and Other Aerators 692 18.2 Post-aeration Systems for ,Wastewater, Treatment 697 18.2.1 Diffused Aeration Systems 697 18.2.2 Cascades 699 18.2.3 Weirs 699 18.3 Type III Sedimentation: Zone Settling 700

Analysis and Development of Models for Liquid Effluent ...
Analysis and Development of Models for Liquid Effluent ...

The three basic steps in cotton processing are spinning, weaving, and finishing. Cotton spinning and weaving are dry process while the finishing process are mostly wet involving ,dyeing, and ,printing,. Due to the natural and synthetic nature of textile fibrous materials, several methods of finishing operations are available for different materials.

Fast Degradation of Azo Dyes by Using Cu-based Metallic ...
Fast Degradation of Azo Dyes by Using Cu-based Metallic ...

wastewater,, the pH is in the range of 2–10. In this work, therefore, we chose to degrade the Direct Blue at pH = 2, 7 and 10. Figure 2(a) shows the UV absorption spectra of Direct Blue 6 dye by using Cu 46 Zr45 Al7Y2 amorphous ribbons. It can indicate that the dye is completely degraded. The

Dyeing thermodynamics of acrylic acid photografted linen ...
Dyeing thermodynamics of acrylic acid photografted linen ...

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Module 6 - CHEM Notes - Chemistry MODULE ACID BASE ...
Module 6 - CHEM Notes - Chemistry MODULE ACID BASE ...

BUFFERS Utilised in the natural environment, biological systems, pharmaceutical, fermentation and food, the ,dyeing,, ,printing, and electroplating industry, to maintain an optimal pH. A buffer is a solution of a ,weak, acid and its conjugate base (or vice versa) that is able to resist a …

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