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Membrane treatment of acid wastewater

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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Membrane treatment of acid wastewater
Pollution Control In Dye Industry | CivilDigital
Pollution Control In Dye Industry | CivilDigital

15/3/2017, · The volume of effluent generated in ,dyeing, is comparatively more. It contains dyes, mordants, acids (acetic ,acid,), alkalis, nitrites, chromium salts, sodium chloride and soaps. These effluents are usually hot, highly coloured with a high pH and sulfide ,content

“Use of lignin-based carbons for decolorization of ...
“Use of lignin-based carbons for decolorization of ...

The obtained carbon materials displayed excellent adsorption-decolorization abilities for 5 dyes, including ethyl violet, malachite green, cationic brilliant ,red,, ,acid, blue 92, and direct ,red, 23. The concentrations of these 5 dyes in ,wastewater, were reduced by SLS-C from 20 mg/L to 0.12 mg/L, 0.20 mg/L, 0.32 mg/L, 0.78 mg/L, and 3.77 mg/L, respectively, over a 60 min treatment.

TREATMENT OF TEXTILE DYE WASTEWATER BY CHROMIUM …
TREATMENT OF TEXTILE DYE WASTEWATER BY CHROMIUM …

Dyeing, and ,printing wastewater, are highly colored and have a high BOD and COD and sodium ,content,. The ,wastewater, is however, amenable for treatment for ... respectively. “Solutions A” was slowly added to “solution ,B,”. The chelating agent, citric ,acid,, was added to this resultant solution.

Pipeline rehabilitation systems for service life extension ...
Pipeline rehabilitation systems for service life extension ...

1/1/2011, · First, the soil load reaching the liner pipe is overestimated by treating the liner as if it had been ,directly buried, in a trench. The more correct liner pipe condition, even in circumstances where the existing pipe may continue to deteriorate after renewal, is a tunnel lining situation ( Schrock et al. , 1997 ).

Pollution Control In Dye Industry | CivilDigital
Pollution Control In Dye Industry | CivilDigital

15/3/2017, · The volume of effluent generated in ,dyeing, is comparatively more. It contains dyes, mordants, acids (acetic ,acid,), alkalis, nitrites, chromium salts, sodium chloride and soaps. These effluents are usually hot, highly coloured with a high pH and sulfide ,content

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

dye (,Acid Red,-87 dye) from aqueous media. The structure of dye molecule is shown in Fig. 1. Figure 1. ,Acid Red,-87 dye (Also known as eosin yellow) It is a fluorescent dye usually employed in detergents, hair dyes, cosmetics, histology, photovoltaic devices, nano-scale host material, color filter, and in inks used for detection of latent ...

Cotton Dyeing Wastewater Characteristics and its Treatment ...
Cotton Dyeing Wastewater Characteristics and its Treatment ...

Textile ,wastewater, often contains a mix of chemicals, solvents and additives which require numerous physical and chemical treatment methods which can tolerate wide range of pollutants. Application of adsorption treatment for textile ,wastewater, has been studied for years. However, there is very limited data available on the development of eco-friendly composite adsorbent derived from coconut ...

CSFRST 3 Flashcards | Quizlet
CSFRST 3 Flashcards | Quizlet

CSFRST 3, study guide by annmarie_tran includes 93 questions covering vocabulary, terms and more. ,Quizlet, flashcards, activities and games help you improve your grades.

The Dependence of Oxidation Parameters and Dyes' Molecular ...
The Dependence of Oxidation Parameters and Dyes' Molecular ...

30/11/2019, · Dye has been widely used in practical applications closely relevant to human life such as textile, paper, leather, ,printing,, ,dyeing, and other industries. 1 However, due to its innate toxicity, carcinogenicity, and refractory biodegradable dye ,wastewater, and intermediates, 2 it has caused huge damages to water and environment, as well as human health. 3,4 It is generally acknowledged that dye …

TREATMENT OF TEXTILE DYE WASTEWATER BY CHROMIUM …
TREATMENT OF TEXTILE DYE WASTEWATER BY CHROMIUM …

Dyeing, and ,printing wastewater, are highly colored and have a high BOD and COD and sodium ,content,. The ,wastewater, is however, amenable for treatment for ... respectively. “Solutions A” was slowly added to “solution ,B,”. The chelating agent, citric ,acid,, was added to this resultant solution.

Cotton Dyeing Wastewater Characteristics and its Treatment ...
Cotton Dyeing Wastewater Characteristics and its Treatment ...

Textile ,wastewater, often contains a mix of chemicals, solvents and additives which require numerous physical and chemical treatment methods which can tolerate wide range of pollutants. Application of adsorption treatment for textile ,wastewater, has been studied for years. However, there is very limited data available on the development of eco-friendly composite adsorbent derived from coconut ...

Process optimization and mechanism study of acid red G ...
Process optimization and mechanism study of acid red G ...

On the other hand, the ,dyeing, process also involves a large consumption of water. With the rapid development of the ,dyeing, industry, its emissions account for a growth inthe proportion of industrial ,wastewater, discharge, and it has become one of the key pollution sources in the industry [1].

Effective Removal of Congo Red by Triarrhena Biochar ...
Effective Removal of Congo Red by Triarrhena Biochar ...

Congo ,red, 1-naphthalenesulfonic ,acid,, 3, 3-(4, 4-biphenylenebis (azo) bis (4-amino) disodium salt, as one of the most widely used direct dyes in PDI for its high chromaticity, is the critical source contamination of ,wastewater, with high chemical oxygen demand and high biological toxicity [9–14].

Sustainability | Free Full-Text | Comparison of Different ...
Sustainability | Free Full-Text | Comparison of Different ...

Printing and dyeing wastewater, (PDW) is considered to be one of the most difficult industrial wastewaters to treat because of its large quantities, high pH values, and high color and toxicity, which may endanger the lives of animals and humans. In this study, we assessed the chemical decolorization process of Congo ,Red, in azo dyes using response surface methodology (RSM), and the effect of ...

HJ 861-2017 PDF. - Chinese Standard
HJ 861-2017 PDF. - Chinese Standard

Acid, (acetic ,acid,, malic ,acid,, tartaric ,acid,, succinic ,acid,, sulfuric ,acid,, hydrochloric ,acid,), alkali agent (caustic soda, soda ash, ammonia water), oxidant (chlorine dioxide, Liquid chlorine, hydrogen peroxide, sodium hypochlorite), reducing agent (sulfur dioxide, insurance powder, sodium sulfate), biological enzymes, staple fiber velvet, release paper, additives

Minerals | Free Full-Text | Study on Chromaticity Removal ...
Minerals | Free Full-Text | Study on Chromaticity Removal ...

Cai et. al. studied an advanced treatment of ,printing and dyeing wastewater, by the AC catalytic ozonation method, with the optimal conditions as follows: pH value 11, reaction time 60 min, doped-AC catalyst dosage 50 g/L, and ozone 6.5 mg/min, the removal ratio of color was 95.83% .

Assessing buried infrastructure deep under buried ...
Assessing buried infrastructure deep under buried ...

Peel Water & ,Wastewater, services approximately 1.3 million residents and 88,000 businesses in Brampton, Caledon and Mississauga. The Hanlan Water Project is the largest water ,pipeline, capital initiative ever undertaken by Peel, with a cost of approximately $500 million.

Wet process engineering - Wikipedia
Wet process engineering - Wikipedia

Water. Water consumption and discharge of ,wastewater, are the two major concerns.The textile industry uses a large amount of water in its varied processes especially in wet operations such as pre-treatment, ,dyeing,, and ,printing,. Water is required as a solvent of various dyes and chemicals and it is used in washing or rinsing baths in different steps. Water consumption depend upon the ...

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