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Back flow of fracturing 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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Back flow of fracturing fluid
How to Remove Phenol from Wastewater?
How to Remove Phenol from Wastewater?

The activated carbon is used to measure the, nicotinic acid, content of foodstuffs, the, nicotinic acid, being adsorbed by carbon and subsequently eluted with a solution of sodium hydroxide in alcohol. Tastes, colours and odours are removed from potable waters and dissolved organics such as phenols, pesticides, organic dyes, surfactants etc., are removed from industrial and municipal waste water.

An Electrochemical Method for Acid Mine Drainage ...
An Electrochemical Method for Acid Mine Drainage ...

Research Category: Groundwater, Contaminants, ,Treatment,, Land and Waste Management Objective: The major goal of this project is to obtain the necessary ,experimental, information required to determine the feasibility of an electrodialytic ion exchange (EDIX) cell-based metal recovery system as applied to ,acid, mine drainage. Approach:

International Journal of harmTechResearch
International Journal of harmTechResearch

D. Sivakumar /Int.J. PharmTech Res. 2015,8(5),pp 836-842. 839 The maximum removal percentage of colour in a textile industry ,wastewater, by the group of an isolated Aspergillus niger with an optimum incubation time of 5 days,Aspergillus niger biomass of 2 g, and an initial colour concentration of 45 mg/L against different pH was presented in Table 3.

Stabilization/Solidification of CERCLA and RCRA Wastes ...
Stabilization/Solidification of CERCLA and RCRA Wastes ...

The leaching solution is added to a Zero Headspace Extractor (ZHE) at a liquid:solid ratio of 20:1, and the sample is agitated with a National Bureau of Stan- Test method TCLP EPTox Cal. WET MEP MWEP Equilibrium leach test Add neutralization capacity Sequential extraction tests Sequential chemical extraction Leaching medium Acetic ,acid,* 0.04 M acetic add (pH - 5.0) 0.2 M sodium citrate (pH . 5 ...

International Journal of harmTechResearch
International Journal of harmTechResearch

D. Sivakumar /Int.J. PharmTech Res. 2015,8(5),pp 836-842. 839 The maximum removal percentage of colour in a textile industry ,wastewater, by the group of an isolated Aspergillus niger with an optimum incubation time of 5 days,Aspergillus niger biomass of 2 g, and an initial colour concentration of 45 mg/L against different pH was presented in Table 3.

Treatment Technologies for Organic Wastewater | IntechOpen
Treatment Technologies for Organic Wastewater | IntechOpen

17/11/2011, · 1.1. Resources of organic ,wastewater,. There are several contaminants in ,wastewater,, with organic pollutants playing the major role. Many kinds of organic compounds, such as PCBs, pesticides, herbicides, phenols, polycylic aromatic hydrocarbons (PAHs), aliphatic and hetercyclic compounds are included in the ,wastewater,, and industrial and agricultural production as well as the people living ...

Effect of coal fly ash addition on cement stabilization ...
Effect of coal fly ash addition on cement stabilization ...

The leaching toxicity results showed that Cd, Pb and Zn concentrations in leachates after ,treatment, by Solid waste-Extraction procedure for leaching toxicity-Acetic ,acid, buffer solution method ( HJ/T 300—2007) were lower than the limits of the Identification Standards for Hazardous Wastes -Identification for Extraction Toxicity ( GB 5085.3—2007) .

Isolation and Identification of Klebsiella pneumonia and ...
Isolation and Identification of Klebsiella pneumonia and ...

Recently prevention of bacterial infections using their specific viruses, bacteriophages, is challenging. In this research we isolated and identified a native strain of ,Klebsiella, pneumoniae from Isfahan municipal ,wastewater treatment, plant we named K. pneumoniae SBSWIF3.Also we isolated and characterized two novel bacteriophages related to Myoviridae and Podoviridae families of bacteriophages ...

Combined treatment of hydroxypropyl guar gum in oilfield ...
Combined treatment of hydroxypropyl guar gum in oilfield ...

Hydroxypropyl guar gum is considered to be a main component of oilfield fracturing ,wastewater, (OFW). This work is intended to optimize the ,experimental, conditions for the maximum oxidative degradation of hydroxypropyl guar gum by the coagulation and UV/H 2 O 2 /ferrioxalate complexes process. Optimal reaction conditions were proposed based on the chemical oxygen demand (COD) removal efficiency ...

Treatment Technologies for Organic Wastewater | IntechOpen
Treatment Technologies for Organic Wastewater | IntechOpen

17/11/2011, · 1.1. Resources of organic ,wastewater,. There are several contaminants in ,wastewater,, with organic pollutants playing the major role. Many kinds of organic compounds, such as PCBs, pesticides, herbicides, phenols, polycylic aromatic hydrocarbons (PAHs), aliphatic and hetercyclic compounds are included in the ,wastewater,, and industrial and agricultural production as well as the people living ...

CN103011726A - Solidification treatment process of ...
CN103011726A - Solidification treatment process of ...

The invention discloses a ,solidification treatment, process of smelting waste of lead and zinc. The ,solidification treatment, process is characterized in that surface active agent, stabilizing agent, adsorbent and lime are added into and mixed uniformly with the smelting waste of lead and zinc; water-reducing agent, active blending material, river sand and water are added into and mixed ...

Study on Treatment Methods of Phenol in industrial Wastewater
Study on Treatment Methods of Phenol in industrial Wastewater

simulation ,phenol wastewater,. The removal rate can reach 91.7% when volume is 20L, temperature is 30℃, inoculation amount is 15thousands, pH is 7.0, and treatment time is 7d. 2.3 P. HENOL-DEGRADING BACTERIUM TECHNOLOGY. ,Phenol,-degrading bacterium technology belongs to the microbial degradation method and has been more and more widely used.

Original paper Preparation and characterization of high ...
Original paper Preparation and characterization of high ...

Citric ,acid, (CA) is a multifunctional chemical compound that supplies ... membrane ,solidification,. Finally, ... method for application in advanced ,wastewater treatment,, Journal of Applied Research in Water and ,Wastewater,, 3 (1), 2016, 233-235. Fig. 2.

Solidification- Stabilization Technique for Metal bearing ...
Solidification- Stabilization Technique for Metal bearing ...

Solidification- Stabilization Technique for Metal bearing, Solid Waste from Zinc Industry –A case ,study, A.K.Vyas Professor & Head Department of Civil Engineering, Malaviya National Institute of Technology, Jaipur, INDIA Abstract. Disposal of solid and hazardous wastes has become a major issue in all industrialized countries.

Combined treatment of hydroxypropyl guar gum in oilfield ...
Combined treatment of hydroxypropyl guar gum in oilfield ...

Hydroxypropyl guar gum is considered to be a main component of oilfield fracturing ,wastewater, (OFW). This work is intended to optimize the ,experimental, conditions for the maximum oxidative degradation of hydroxypropyl guar gum by the coagulation and UV/H 2 O 2 /ferrioxalate complexes process. Optimal reaction conditions were proposed based on the chemical oxygen demand (COD) removal efficiency ...

(PDF) Presence of phenol in wastewater effluent and its ...
(PDF) Presence of phenol in wastewater effluent and its ...

adsorbent is employed to eliminate ,phenol, from ,wastewater, at some locations around the world. Even high concentration ,phenol, (20,000 mg/L) was reported to treat in waste-

Engineering Bulletin: Solidification/Stabilization of ...
Engineering Bulletin: Solidification/Stabilization of ...

----- a site-specific treatability ,study, or non-site-specific treatability ,study, data generated on waste which is very similar (in terms of type of contaminant, concentration, and waste matrix) to that to be treated and that demonstrates, through Total Waste Analysis (TWA), a significant reduction (e.g., a 90 to 99 percent reduction) in the concentration of chemical constituents of concern.

Functionalized chitosan biosorbents with ultra-high ...
Functionalized chitosan biosorbents with ultra-high ...

selective removal method has been long sought for heavy metal ions ,wastewater treatment,. In this ,study,, a highly monodispersed polyethylenimine-chitosan ... ,acid,, ethylene diamine tetraacetic ,acid, (EDTA), CuCl2·2H2O, ... with n-octane was used as crosslinking reagent for ,solidification,.

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