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Guar gum fracturing flowback fluid

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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Guar gum fracturing flowback fluid
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.

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.

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.

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].

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 ...

Access Denied - LiveJournal
Access Denied - LiveJournal

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Strategies to improve the adsorption properties of ...
Strategies to improve the adsorption properties of ...

For example, ,printing and dyeing wastewater, is a typical compound pollution industrial ,wastewater, containing both organics and heavy metals (Korbahti et al., 2011). ,Dyeing wastewater, often contains high-,content, toxic pollutants such as dyes, waxes, grease, bleaching agents, enzymes, salts, surfactants, acids, alkalis, etc., and also contains Cd, Cu, Zn, Cr, Fe and other metal elements.

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

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

A new approach for the removal of unfixed dyes from ...
A new approach for the removal of unfixed dyes from ...

Many industries, such as textile, paper and pulp, ,dyeing, and ,printing, industries, are causing water pollution by discharging their effluent into water bodies (Christensen et al. 2009). The textile industry is one of the major industrial sectors which consumes high volumes of water for its various processes and consequently discharges large amounts of highly polluted water ( Patel & Shah 2013 ).

Study on Purification Technology of High-salt Nitrogenous ...
Study on Purification Technology of High-salt Nitrogenous ...

1/2/2019, · When the production of ozone was 167 mg/min and the reaction time was 4 min, the decolorization rates all of neutral ,red,, ,acid, green and methyl orange could reach over 94.0%. This study provides theoretical and technical support for the purification of high-salt nitrogenous ,printing and dyeing wastewater,.

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.

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

Textile ,Printing and Dyeing, Industry ,Wastewater, Unit Type of ,Wastewater,, Pollutants Sewage, Pollutant Items, Pollution Control Facilities and Discharge Ports See Table 1. Where there is a requirement for local emission standards, it shall be determined according to local emission standards.

Chromium(III) acetate | C6H9CrO6 - PubChem
Chromium(III) acetate | C6H9CrO6 - PubChem

The adsorption of chromium (III) onto soil follows the pattern typical of cationic metals and increases with increasing pH (lowering pH results in increased protonation of the adsorbent leading to fewer adsorption sites for the cationic metal) and the organic matter ,content, of the soil and decreases when other competing (metal) cations are present(1).

Chromium sulfate | Cr2(SO4)3 - PubChem
Chromium sulfate | Cr2(SO4)3 - PubChem

The acute and subacute toxicities of several Cr(III) and Cr(VI) compounds (chromium(3+) chloride, chromium(3+) nitrate, chromium(3+) sulfate, chromium trioxide, potassium dichromate) were determined in NZC and (CxO) mice injected ip.The distal median lethal doses (> 10 days after treatment) averaged (17.9 + or - 1.8) X 10(-6) g chromium/g body wt regardless of the oxidation state of the Cr ...

Application of magnetic fields to wastewater treatment and ...
Application of magnetic fields to wastewater treatment and ...

1. Introduction. ,Wastewater, discharge has caused various water environmental problems such as deterioration of water quality and eutrophication of waterbodies (Arbib et al., 2014).Although traditional treatment methods have been successfully applied to a wide range of ,wastewater,, they are far from efficient for industrial ,wastewater, that contains a large number of heavy metals, dye chemicals ...

Degradation of Acid Red 73 by Activated Persulfate in a ...
Degradation of Acid Red 73 by Activated Persulfate in a ...

with an azo dye, ,Acid Red, 73 (AR73), by persulfate/heat/Fe 3 O 4 @AC/ultrasound (US). The introduction of ultrasound into the persulfate/heat/Fe 3 O 4 @AC system greatly enhanced the reaction rate because of the physical and chemical effects induced by cavitation. Various parameters such as temperature, initial pH, sodium persulfate dosage,

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