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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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waste gas treatment equipment cost
(PDF) Electrocoagulation in Wastewater Treatment | Erick ...
(PDF) Electrocoagulation in Wastewater Treatment | Erick ...

Overall, pulse current was found to be better than direct current, reducing power consumption by 40 to 50% [144]. Wang et al. concluded that by using DC electrocoagulation, in a treatment time of 25 minutes, decolorization and COD removal was 75.45% and 84.62%, respectively.

Degradation of mono azo dye in aqueous solution using
Degradation of mono azo dye in aqueous solution using

Comparative assessment of degradation efficiencies of cast ,iron, and pure elemental ,iron, reveals greater capability of cast ,iron, to treat dye containing ,wastewater,.Apart from the experimental results, the fact that cast ,iron, is available at a fraction of the cost of the high purity ,iron, makes it a more ideal cost effective alternative for practical treatment applications.

Lizhi Huang – Postdoctoral Fellow – Aarhus University ...
Lizhi Huang – Postdoctoral Fellow – Aarhus University ...

A low pH value is beneficial to the ,decolorization, of dyeing ,wastewater,. A preliminary photocatalytic mechanism is proposed: the ,iron, in the MMt is responsible for the ,decolorization, of the ,wastewater, because it produces a highly oxidative species of hydroxyl radicals (•OH). Vis mere Vis mindre

Application of zero valent iron coupling with biological ...
Application of zero valent iron coupling with biological ...

11/9/2017, · The current paper provides a comprehensive review on recent developments in: (1) the chemical behavior of ZVI and potential mechanisms of integrated bio-ZVI technology in contaminants removal; (2) synergistic effects of bio-ZVI towards various common environmental pollutants in ,wastewater,, including inorganic oxyanions, organic compounds, heavy metals and dyes; (3) promotion …

WORDS | Nature - Scribd
WORDS | Nature - Scribd

WORDS.TXT, - Free ebook download as Text File (.txt), PDF File (.pdf) or read book online for free.

Scaling-up of a zero valent iron packed anaerobic reactor ...
Scaling-up of a zero valent iron packed anaerobic reactor ...

In practice, full-scale iron chipping–filtration processes have also been applied to pretreat less-biodegradable textile dye wastewater for improving the biodegradability of wastewater and reducing color. However, the application of this technology is limited as ZVI is liable to rust and harden when the surface of ZVI is exposed to air.

US4194973A - Method of lowering the color of effluent ...
US4194973A - Method of lowering the color of effluent ...

Effluent which contains aryl azo- and/or aryl nitro-containing compounds is treated to remove the color by contacting the effluent with Fe(II) in the presence of ,iron, at a temperature and for a time sufficient to cause reduction of the aryl azo and aryl nitro groups of the effluent.

Impacts of dyebath auxiliaries on the reductive ...
Impacts of dyebath auxiliaries on the reductive ...

The chloride dissolves the oxide layer and induces pits and cracks on the HCIF surface, forming ,iron, chloride, which hydrolyzes to produce ,iron, hydroxide and hydrochloric ,acid, (Su et al. 2012). Thus, an autocatalytic process begins where HCl can further rejuvenate the surface, increase the surface area and generate electrons for the discoloration reaction.

Decolorization of molasses-based distillery wastewater by ...
Decolorization of molasses-based distillery wastewater by ...

1/6/2017, · Conventional treatment of the molasses-based ,wastewater,, typically using a combination of anaerobic digestion and activated sludge processes, requires a long retention time to remove the BOD and COD but this method barely affects melanoidin pigments decolorization since melanoidins possess antioxidant, antimicrobial and cytotoxic properties , which make them recalcitrant to biodegradation …

Subject:
Subject: "biological treatment" - PubAg Search Results

Treatment of textile ,wastewater, using calcium hypochlorite oxidation followed by waste ,iron rust, aided rapid filtration for color and COD removal for application in resources challenged Bangladesh Author:

CN101085688A - Decolorization flocculating agent for ...
CN101085688A - Decolorization flocculating agent for ...

The invention provides a method for preparing decolouring flocculating agent for printing and dyeing ,wastewater,. It comprises following steps: adding 6- 9 units dicyandiamide, 4- 1 units urea, 20 -26 units formaldehyde and 3.5- 7.5 untis ammonium chloride into autoclave equipped with reflux condensing unit, reacting at 40 -50 Deg. C for 1- 2 hours, heating to 80- 85 Deg. C and reacting for ...

Biosorption : Techniques and Mechanisms
Biosorption : Techniques and Mechanisms

Under the pH condition existing in drinking water supply, ferrous sulphate is unstable and precipitates as insoluble ferric hydroxide, which settles out as a ,rust, coloured silt. Such water often tastes unpalatable even at low concentration (0.3 mg/L) and stains laundry and plumbing fixtures. ,Iron, is an essential element in human nutrition.

Water | Free Full-Text | Electrocoagulation in Wastewater ...
Water | Free Full-Text | Electrocoagulation in Wastewater ...

Zhang et al. decolorized CI ,Acid, Red 2 on a platinum rotating disc resulting in a 98% reduction within 40 minutes by using an electrogenerated ,iron, hydroxide from eelctrogenerated ferrous irons, where decolorization was combined with electrocoagulation electro oxidation procedures .

Comparison of electrocoagulation using iron and aluminium ...
Comparison of electrocoagulation using iron and aluminium ...

17/10/2011, · Initial pH of wastewater was a key parameter of EC and should be maintained between 7 and 8 with Al electrodes, whereas decolorization yield depended only slightly on initial pH for iron electrodes. As voltage was also nearly independent of the metal, the electrical power input was similar for Al and Fe electrodes and differences in specific energy consumption (E dye ) were mainly governed by …

(PDF) Comparison of electrocoagulation using iron and ...
(PDF) Comparison of electrocoagulation using iron and ...

Influence of ,wastewater, properties First, the comparison between Al and Fe electrodes for decolor- ization always highlighted that Y was higher with ,iron, at constant ,wastewater, properties and operation parameters: e.g., the maximum Y values achieved in this work were 93.4% and 98.1% with Al and Fe Fig. 8.

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(PDF) Sensory Evaluation and Consumer Acceptability
(PDF) Sensory Evaluation and Consumer Acceptability

PDF | On Oct 18, 2017, Mian Kamran Sharif and others published ,Sensory Evaluation and Consumer Acceptability, | Find, read and cite all the research you need on ResearchGate

Decolorization of Acid Red 1 dye solution by Fenton-like ...
Decolorization of Acid Red 1 dye solution by Fenton-like ...

This paper presents successful ,decolorization, of high-concentration reactive dye ,wastewater, using a wide range of temperatures and solar irradiances in two locations for the first time.

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