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Acid wastewater is usually neutralized by hydrated lime

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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Acid wastewater is usually neutralized by hydrated lime
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].

Study on the degradation mechanism and pathway of benzene ...
Study on the degradation mechanism and pathway of benzene ...

4, n-hexane, formic ,acid,, acetic ,acid, and oxalic ,acid, werereceivedfromSinopharmChemicalReagentCo.,Ltd.The physical and chemical properties of 4M2NA are shown in Table 1. 2.2 Experimental setup The4M2NAwastewatersample(500mL)wasputinabeaker(1L) with a magnetic stirrer. The initial solution pH was adjusted to Table 1 Physical and chemical …

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 pre-oxidization. The experiment results showed that 77.5% COD and 76.6% color removal efficiency could be attained at pH 5 with 77.0 mgldrL-1 ferrate (in terms of Fe(VI) ions).

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

Chemical Engineering Journal Journal Impact IF 2020-2021 ...
Chemical Engineering Journal Journal Impact IF 2020-2021 ...

The ,Chemical Engineering Journal, Journal Impact IF 2020-2021 is 10.652. More IF Analysis, Trend, Ranking & Prediction.

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 …

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 ...

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 pre-oxidization. The experiment results showed that 77.5% COD and 76.6% color removal efficiency could be attained at pH 5 with 77.0 mgldrL-1 ferrate (in terms of Fe(VI) ions).

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

Preparation of Quaternary Ammonium Salt-Modified Chitosan ...
Preparation of Quaternary Ammonium Salt-Modified Chitosan ...

The exptl. results show that, the decolorizing ceramsites made of palygorskite have the best performances among different clay minerals in treating printing and dyeing wastewater. Its decolorizing amt. is 635 mL/g and the redn. in COD is 81%, after 5 min static treatment at normal temp.

Access Denied - LiveJournal
Access Denied - LiveJournal

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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.

Electrocatalytic Properties of a Novel β-PbO2/Halloysite ...
Electrocatalytic Properties of a Novel β-PbO2/Halloysite ...

The treatment methods of ,printing and dyeing wastewater, mainly include adsorption, ozone degradation, microbial degradation, electrochemical degradation, and others. (4−6) However, the traditional treatment of dye ,wastewater, has been unable to meet the requirements of environmental protection.

ACS Sustainable Chemistry & Engineering | Vol 9 No 10
ACS Sustainable Chemistry & Engineering | Vol 9 No 10

Biodegradable Elastomer from 2,5-Furandicarboxylic ,Acid, and ε-Caprolactone: Effect of Crystallization on Elasticity; β,γ-Vicinal Dicarbofunctionalization of Alkenyl Carbonyl Compounds via Directed Nucleopalladation

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 ...

Performance evaluation of novel PVDF–Cloisite 15A hollow ...
Performance evaluation of novel PVDF–Cloisite 15A hollow ...

When tested using a ,dyeing, solution containing 50 ppm ,acid red, and 1.0 M NaCl, the membrane flux was reported to enhance by 200% and 25% on increasing the feed temperature from 50 to 90 °C and the flow rate from 0.010 to 0.023 m s −1, respectively.

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