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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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(PDF) Textile Dyeing Effluents and Environment Concerns ...
(PDF) Textile Dyeing Effluents and Environment Concerns ...

The ,study, aimed to review the different types of textile dyes use in the industrial processes and their contribution to environmental pollution in South Asian countries. The article was prepared ...

Biological treatment of acid dyeing wastewater using a ...
Biological treatment of acid dyeing wastewater using a ...

2/5/2006, · The characteristics of, acid dyeing wastewater, depend on the type of dye, the fiber and the dyeing method. Horning [2] reported that wool-acid, dyeing wastewaters, contained an average color load of 3200 ADMI (American, Dye, Manufacturers Institute Unit), a total organic carbon (TOC) of 210 mg dm −3 , a suspended solid (SS) of 9 mg dm −3 and a pH of 4 through different dyeing processes.

Nitric acid - Wikipedia
Nitric acid - Wikipedia

Nitric acid, (H NO 3), also known as aqua fortis (Latin for "strong water") and spirit of niter, is a highly corrosive mineral ,acid,.. The pure compound is colorless, but older samples tend to acquire a yellow cast due to decomposition into oxides of nitrogen and water. Most commercially available ,nitric acid, has a concentration of 68% in water.

(PDF) Biological treatment of acid dyeing wastewater using ...
(PDF) Biological treatment of acid dyeing wastewater using ...

In this ,study,, the treatment of a ,wastewater, taken from a wool ∗ Corresponding author. Tel.: +90 232 4531008/1119; fax: +90 232 4531153. ,dyeing, processing from the wool manufacturing plant located E-mail address: delya.sponza@deu.edu.tr (D.T. Sponza).

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

Wastewater Analysis and Study of Soil Microorganisms of, ... is the use of huge volumeof water either in the actual chemical processing or during re-processing in preparatory,,dyeing,, ,printing, and ... heat,colour, ,acidity,, and other soluble substances. The removal of colour from textile industry anddyestuff manufacturing industry ...

Top PDF textile dyeing wastewater - 1Library
Top PDF textile dyeing wastewater - 1Library

Wastewater, from textile ,dyeing, industry showed 95% degradation measured by Chemical Oxygen Demand removal and 80% mineralization by reduction of Total Organic Carbon. Biodegradability of the treated ,wastewater, increased to 0.42 implying that the further treatment could be progressed by biological method.

Assessment of Textile Industrial Effluent by Wastewater ...
Assessment of Textile Industrial Effluent by Wastewater ...

around 90% appears as ,wastewater,. The process of adding colour to the fibre is known as ,dyeing, which normally requires large volumes of water not only in the dye bath, but also during the rinsing step. The process of ,dyeing, involves the use of different chemicals like sulphide, formaldehyde salts, metals

(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”).

Studies on Treating the Printing and Dyeing Wastewater ...
Studies on Treating the Printing and Dyeing Wastewater ...

This experimental study was conducted to investigate the COD and color removal efficiency in, printing and dyeing wastewater, by, ferrate and, by UV irradiation combined with the ferrate...

Response to Comment on “Suspect and Nontarget Screening of ...
Response to Comment on “Suspect and Nontarget Screening of ...

Hexafluoropropylene ,oxide, dimer ,acid, (HFPO-DA, trade name GenX) is a perfluoroalkyl ether carboxylic ,acid, (PFECA) that has been detected in watersheds around the world. Similar to other per- and polyfluoroalkyl substances (PFASs), few processes are able …

CN1765779A - Printing and dyeing wastewater recovery and ...
CN1765779A - Printing and dyeing wastewater recovery and ...

The recycle treatment method for ,printing and dyeing wastewater, aims to providing a system technique to recycle and treat the desizing, base-decrement, ,dyeing, sewage with no effect to ,dyeing, product quality and high yield and low cost, which comprises: taking acid-out pre-treatment to sewage for recycling slurry; then, taking A/O biochemical treatment with ,dyeing, sewage and ozone catalytic ...

Treatment and reuse of reactive dyeing effluents ...
Treatment and reuse of reactive dyeing effluents ...

1/2/2006, · The objectives of this ,study, were (a) to removal cotton fibres and to control the carbonate concentration which might strongly influence the nanofiltration, (b) the treatment of dye baths by nanofiltration in order to recover and reuse the sodium chloride and the water, (c) to select the NF membranes that were able to operate at high temperatures (50–70 °C), allowed for passage of …

CHAPTER 1 INTRODUCTION 1.1 Background of the problem
CHAPTER 1 INTRODUCTION 1.1 Background of the problem

Recently, the problems created by textile wastewater getting more serious concerns especially in developing country. This is due to low biodegradation of dye and chemical used in commercial textile are hazardous and danger to the environment. Approximately 10000 different dyes mainly used in the dying and printing industries are produced

WASTEWATER TREATMENT & ZERO LIQUID DISCHARGE …
WASTEWATER TREATMENT & ZERO LIQUID DISCHARGE …

- 70%) and nylon ,dyeing, (acid dyes - 30%). Additional ,wastewater, originates from the cotton towel ,dyeing, using vat/reactive dyes. For disperse ,dyeing,, the two main chemicals used are a buffer and a levelling agent. For acid ,dyeing,, four main chemicals are being used: an acid donor, a levelling agent, a scouring agent and soda ash. For cotton

CN1323042C - Printing and dyeing wastewater recovery and ...
CN1323042C - Printing and dyeing wastewater recovery and ...

The present invention aims to provide a systematic technology for recovering and treating de-sizing ,waste water,, alkali weight reduction ,waste water and dyeing waste water,; the ,waste water, treated and recovered by using the systematic technology can be used in the ,printing and dyeing, process and does not influence the quality ,of printing and dyeing, products; compared with the prior art, the systematic …

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