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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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fracturing flow-back fluids recycling near me
Recovery of Byproducts from Acid Mine Drainage Treatment ...
Recovery of Byproducts from Acid Mine Drainage Treatment ...

5 Technologies that can be Used for the Treatment of ,Wastewater, and Brine for the Recovery of Drinking Water and Saleable Products 99 Tumelo Monty Mogashane, Johannes Philippus Maree, Munyaradzi Mujuru and Mabel Mamasegare Mphahlele-Makgwane. 5.1 Introduction 100. 5.1.1 Formation of ,Acid Mine, Water 100. 5.1.2 Water Volumes 100. 5.1.3 Legislation 101

Guidance Manual for Disposal of Chlorinated Water
Guidance Manual for Disposal of Chlorinated Water

Passive Non-Chemical Methods for the ,Disposal of Chlorinated Water, Chlorine is a relatively unstable, moderately reactive element. In the environment, chlorine is neutralized upon reaction with air, sunlight and other contacting surfaces. Furthermore, chlorine readily reacts with organic and inorganic impurities in soil, paved surfaces, water and ,wastewater,.

US Patent Application for Water treatment dechlorination ...
US Patent Application for Water treatment dechlorination ...

A ,dechlorination, tablet for water and ,wastewater, treatment contains 70 to 91 weight percent active sodium sulfite, 0.5 to 4.2 weight percent mixture solution of color liquid and liquid sugar binder, 0.05 to 1 weight percent one type of stearate salt used as dissolution rate control chemical, 0.05 to 1 weight percent another type of stearate salt used as mold release chemical, and 2 to 3.75 ...

Guidance Manual for Disposal of Chlorinated Water
Guidance Manual for Disposal of Chlorinated Water

Passive Non-Chemical Methods for the ,Disposal of Chlorinated Water, Chlorine is a relatively unstable, moderately reactive element. In the environment, chlorine is neutralized upon reaction with air, sunlight and other contacting surfaces. Furthermore, chlorine readily reacts with organic and inorganic impurities in soil, paved surfaces, water and ,wastewater,.

The Chlorination/dechlorination Handbook - Gerald F ...
The Chlorination/dechlorination Handbook - Gerald F ...

acid, addition ,agent, allow ammonia Ammonium application Association automatic bisulfite calcium hypochlorite carbon cars chamber chemical feed pumps chlorine dioxide chlorine gas Chlorine Institute chlorine or sulfur chlorine residual codes combined compounds concentration connection considered containers cylinders ,dechlorination, depending desired devices disinfection Effects effluent emergency ...

Water treatment dechlorination tablet and production ...
Water treatment dechlorination tablet and production ...

A ,dechlorination, tablet for water and ,wastewater, treatment contains 70 to 91 weight percent active sodium sulfite, 0.5 to 4.2 weight percent mixture solution of color liquid and liquid sugar binder, 0.05 to 1 weight percent one type of stearate salt used as dissolution rate control chemical, 0.05 to 1 weight percent another type of stearate salt used as mold release chemical, and 2 to 3.75 ...

Emission reduction process for dechlorinating flue‐gas ...
Emission reduction process for dechlorinating flue‐gas ...

However, despite favorable results, research on the ,dechlorination, of FGD gypsum and its ,wastewater, reduction via ,wastewater, treatment, and the utilization of FGD gypsum has been limited. 73-75 Therefore, this study combined the results of laboratory experiments conducted in previous studies 76, 77 and developed an emission reduction process for FGD gypsum ,dechlorination, and “zero emissions ...

Chlorination/Dechlorination of Wastewater
Chlorination/Dechlorination of Wastewater

Sulfur dioxide is the most common dechlorinating ,agent, for the following reasons: 1. Removes free or combined chlorine residual 2. Cost effective 3. Similar to chlorine feeding apparatus design 4. Simple to control Chemistry of ,Dechlorination, Sulfur dioxide dissolves in water rapidly, forming sulfuric ,acid, as shown in the following reaction: SO ...

Guidance Manual for Disposal of Chlorinated Water - Maria ...
Guidance Manual for Disposal of Chlorinated Water - Maria ...

DECHLORINATION AGENT, FEED ... ,Dechlorination,. 127: TabletT Cage ,Dechlorination,. 128: Portable Dechlorinator. 132: ChlorinationDechlorination Unit by Water and ,Wastewater, Technologies ... 0.1 mg/L instantaneously ammonia amount of ,dechlorination, amperometric titration ascorbic ,acid, AWWA bisulfite calcium thiosulfate catalytic carbon chloramine ...

Guidance Manual for Disposal of Chlorinated Water - Maria ...
Guidance Manual for Disposal of Chlorinated Water - Maria ...

DECHLORINATION AGENT, FEED ... ,Dechlorination,. 127: TabletT Cage ,Dechlorination,. 128: Portable Dechlorinator. 132: ChlorinationDechlorination Unit by Water and ,Wastewater, Technologies ... 0.1 mg/L instantaneously ammonia amount of ,dechlorination, amperometric titration ascorbic ,acid, AWWA bisulfite calcium thiosulfate catalytic carbon chloramine ...

Remediation of acid mine drainage | SpringerLink
Remediation of acid mine drainage | SpringerLink

29/5/2019, · Additionally, the possibility of, recovery, of valuable solid products from, acid mine drainage waste, is a potential option since not only environmental impact is reduced but also economic advantages can be obtained. Furthermore, clean water which can be, reused, might be obtained by some techniques.

The Use of Recovered Coagulants in Wastewater Treatment
The Use of Recovered Coagulants in Wastewater Treatment

The treatment of acid mine drainage by neutralization produces large quantities of iron rich sludge. This iron can be recovered by acidification with H2SO4 and then used as a wastewater coagulant...

Dechlorination - Earth Renaissance Technologies LLC
Dechlorination - Earth Renaissance Technologies LLC

In most cases, ERT's dechlor application is at least 10% less expensive than the cost of dechlor using sodium bisulfite as a chlorine neutralization ,agent, and its on-site generation from elemental raw sulfur is much safer than transport and use of gaseous SO 2. Advantages. Proven technology to neutralize free chlorine in effluent

Sustainability assessment of the recovery and utilisation ...
Sustainability assessment of the recovery and utilisation ...

1/2/2016, · Acid mine drainage (AMD) presents serious threats to the environment due to its toxic constituents. Traditional wastewater treatment methods such as neutralization, precipitation, membrane processes, ion exchange and biological sulpha,te removal,, etc., have been applied, to remediate AMD and reduce its negative impact on the receiving environment,.

DECHLORINATION METHOD AND SOLUTION - GONG TERRY R.
DECHLORINATION METHOD AND SOLUTION - GONG TERRY R.

A sulfurous ,acid dechlorination, method of chlorinated waters to increase sulfites, prevent sulfur dioxide gassing off, and off-setting monovalent chlorides in the treated water for land application, comprising: a. injecting sulfur dioxide (SO 2) into water or ,wastewater, to provide H +, SO 2, SO 3 =, HSO 3 −, dithionous ,acid, (H 2 S 2 O 4), and other sulfur intermediate reduction products, b ...

Evidence for Widespread Dechlorination of Polychlorinated ...
Evidence for Widespread Dechlorination of Polychlorinated ...

This ,dechlorination, signal was most prevalent in effluents from sites with contaminated groundwater and from ,wastewater, treatment plants (WWTPs) that serve combined sewers or treat landfill leachate. The other ,dechlorination, signal appeared to represent an intermediate stage of ,dechlorination,, because it was dominated by two coeluting groups of tetrachlorinated congeners: PCBs 44 + 47 + 65 and ...

Remediation of acid mine drainage | SpringerLink
Remediation of acid mine drainage | SpringerLink

29/5/2019, · Additionally, the possibility of recovery of valuable solid products from acid mine drainage waste is a potential option since not only environmental impact is reduced but also economic advantages can be obtained. Furthermore, clean water which can be reused might be obtained by some techniques.

The Use of Recovered Coagulants in Wastewater Treatment
The Use of Recovered Coagulants in Wastewater Treatment

The treatment of acid mine drainage by, neutralization, produces large quantities of, iron, rich sludge. This, iron, can, be recover,ed by, acidification, with H2SO4 and …

Pilot test of pollution control and metal resource ...
Pilot test of pollution control and metal resource ...

The study was undertaken in order to recover the metal resources from ,acid mine, drainage (AMD). A 300 m (3)/d continuous system was designed and fractional precipitation technology employed for the main metals Fe, Cu, Zn, and Mn recovery. The system was operated for six months using actual AMD in situ.

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