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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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shale gas fracturing flow-back fluids recycling materials suppliers
(PDF) Reductive Dissolution of Colloidal Manganese Dioxide ...
(PDF) Reductive Dissolution of Colloidal Manganese Dioxide ...

Over the years, ,manganese, oxides and their composites have proved to be effective as adsorbents for the removal of metal ions and contaminants from water/,wastewater,.

Methanogenesis from wastewater stimulated by addition of ...
Methanogenesis from wastewater stimulated by addition of ...

Though there were few studies on methanogenesis from ,wastewater, with elemental ,manganese, addition, it was assumed that the ,manganese, metal could also …

Research on treatment of wastewater containing heavy metal ...
Research on treatment of wastewater containing heavy metal ...

1/2/2018, · This paper introduced the working principle of MFC, the classification of cathode, and the research progress on the ,treatment, of ,wastewater containing, Cr(VI), Cu(II), Ag(I), Mn(II) and Cd(II) by MFC. The study found that different cathode, different heavy metals anddifferent hybrid systems would affect the performance of the system and removal effect for heavy metal in MFC.

Reduction Leaching of Manganese Dioxide Ore Using Black ...
Reduction Leaching of Manganese Dioxide Ore Using Black ...

applied to leaching ,manganese, from ,manganese dioxide, ore, including aqueous sulfur oxide [3,4], pyrite [5], iron(II) sulfate [6], iron metal [7], oxalic acid [8] and hydrogen peroxide [9]. A wealth of studies have been published recently regarding the use of biomass as reduc-tants for reductive leaching of ,manga nese dioxide, ore, such as waste

A microbial fuel cell system with manganese dioxide ...
A microbial fuel cell system with manganese dioxide ...

1/5/2020, · Abstract. To meet the urgent demands for sustainable and efficient, environmental-friendly ,wastewater, treatment, a Microbial fuel cell reactor system with MnO 2 /TiO 2 /g-C 3 N 4 (,manganese dioxide,/ titanium ,dioxide,/graphitic carbon nitride) @GAC (granular activated carbon) electrode was developed. It was both efficient and energy-saving in ...

Reductive recovery of manganese from low-grade manganese ...
Reductive recovery of manganese from low-grade manganese ...

Reductive recovery of ,manganese, from low-grade ,manganese dioxide, ore using toxic nitrocellulose ,acid wastewater, as reductant Yong-tao Zhang1,2), Zhi-gang Dan3), Ning Duan3), and Bao-ping Xin2) 1) School of Petroleum and Environment Engineering, Yan’an University, Yan’an 716000, China

Remediation of Hexavalent Chromium Polluted Ground Water ...
Remediation of Hexavalent Chromium Polluted Ground Water ...

[15] Jun Yang, Yunxiu Wang, Yinsheng Zhang, Mechanism of ,treatment, of ,chromium,—,containing wastewater, by activated carbon, Journal of Polytechnic University. 19(1989) 13-22. (in Chinese). [16] United States Environmental Protection Agency, An in-situ permeable reactive barrier for the ,treatment, for hexavalent ,chromium, and trichloroethylene in ground water: Volume 1 Design and Installation.

THE PERMANGANATE METHOD FOR REMOVING MANGANESE FROM ACID ...
THE PERMANGANATE METHOD FOR REMOVING MANGANESE FROM ACID ...

manganese dioxide,. 3Mn2− + 2 MnO 4 - → 5 MnO 2 ↓ † It may seem a paradox that one ,manganese, compound, permanganate, would be used successfully to produce a treated water that is free of ,manganese, contamination. It is the oxidation potency of permanganate that established its use to remove ,manganese, from water and ,wastewater,.

Purification And Treatment Of Electroplating Baths And ...
Purification And Treatment Of Electroplating Baths And ...

Abstract: The invention relates to a method for separating ferrous ions from an iron-,containing, tinning electrolyte on the basis of methanesulfonic ,acid, or phenolsulfonic ,acid,, comprising the following steps:(a) providing a concentrated tin and iron-,containing, electrolyte ,containing, 0.75 mols/l or more methanesulfonic ,acid, phenolsulfonic ,acid,(b) agitating and cooling the concentrated ...

water treatment - the oxidants and disinfectants - Degremont®
water treatment - the oxidants and disinfectants - Degremont®

oygen. Oxygen is one of the most abundant elements found in Nature. In its molecular form O 2, oxygen or "dioxygen" is a colourless gas that is relatively insoluble in water (see characteristic constants of gases).. As demonstrated by the oxidation reduction equations, the oxidising capacity of oxygen is heavily dependant on pH and low compared to other oxidants used.

Study of the electrocoagulation of electroplating industry ...
Study of the electrocoagulation of electroplating industry ...

the ,treatment, of various emissions : water washing [5], discharges of oil [6], water ,containing, metal ions such as arsenic [7-8], copper, lead, cadmium [9], iron [10,11], ,chromium, [12-14]. 1. Theory of electrocoagulation EC involves several chemical and physicochemical phenomena due to ,electrolysis,. Generally three steps occur

Reductive recovery of manganese from low-grade manganese ...
Reductive recovery of manganese from low-grade manganese ...

6/9/2018, · Zhang, Y., Dan, Z., Duan, N. et al. Reductive recovery of ,manganese, from low-grade ,manganese dioxide, ore using toxic nitrocellulose acid ,wastewater, as reductant. Int J Miner Metall Mater 25, 990–999 (2018). https://doi.org/10.1007/s12613-018-1649-9. Download citation. Received: 27 November 2017. Revised: 28 February 2018. Accepted: 25 April 2018

14 Industrial Wastewater Treatment Principals and Ideas
14 Industrial Wastewater Treatment Principals and Ideas

14 Industri al ,Wastewater Treatment Principals and Ideas,. Industrial ,wastewater, refers to ,waste water,, sewage and waste liquid produced in industrial production processes, which contain industrial production materials, intermediate products and products that are lost …

Catalytic oxidation and spectroscopic analysis of ...
Catalytic oxidation and spectroscopic analysis of ...

The catalyst was used for the catalytic oxidation of simulated acid chrome blue K ,wastewater,. The COD removal efficiency and decolor efficiency by catalytic oxidation are 72.0% and 87.8%, respectively, at the condition of ,wastewater,'s COD is 2,418 mg/L, the optimum pH value is 1.2, the dosage of chlorine ,dioxide, is 1,200 mg/L, the dosage of activated carbon-MnO(2) catalyst is 4 g by reacting 50 min.

Experimental study on the treatment of electroplating ...
Experimental study on the treatment of electroplating ...

Based on iron-carbon micro-,electrolysis, process,the effectiveness of the ,treatment, of electroplating ,wastewater containing, copper and nickel by aluminum-carbon process has been studied.The effects of aluminum carbon ratio,reaction time,and influent water pH on the ,treatment, effectiveness are investigated.The results show that the best reaction time of aluminum-carbon micro-,electrolysis, is ...

Oxidative Removal of Bisphenol A by Manganese Dioxide ...
Oxidative Removal of Bisphenol A by Manganese Dioxide ...

The exceptional efficiency of MnO2 in removing BPA represents a potential use of MnO2 to treat waters containing phenolic compounds and also suggests a potentially important role of oxide-facilitated abiotic transformations in BPA attenuation in natural soil and sediment environments. ACS.

A review of technologies for manganese removal from ...
A review of technologies for manganese removal from ...

1/3/2016, · ,Manganese, is a transition metal. Although the elemental (metal) form of ,manganese, does not occur naturally in the environment, ,manganese, is a component of over 100 minerals. The most common mineral forms include ,manganese dioxide,, ,manganese, carbonate, and ,manganese, silicate . It can exist in a range of oxidation states, +2, +3, +4, +6 and +7.

Treatment of Effluents of Fertilizer Industry ...
Treatment of Effluents of Fertilizer Industry ...

The basic principle of chromate removal is the reduction of hexavalent ,chromium, to trivalent form and precipitation of ,chromium, as ,chromium, hydroxide (Fig. 17.10). The cooling tower blowdown which contains chromate is collected in a tank and the pH of the water is lowered to the range 2 to 4 by adding sulphuric ,acid,.

Adsorption and Oxidation of Thallium(I) by a Nanosized ...
Adsorption and Oxidation of Thallium(I) by a Nanosized ...

24/12/2014, · Abstract. The adsorption and oxidation of thallium (I) by nanosized ,manganese dioxide, (nMnO 2) may have an impact on the removal of Tl from waters in engineered applications, as well as the fate and transport of Tl in natural waters. The fundamental data on the adsorption and oxidation of Tl (I) by nMnO 2 were obtained here.

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