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oil 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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oil fracturing fluid
Process for the purification of acidic metal-bearing waste ...
Process for the purification of acidic metal-bearing waste ...

The remediation treatment by sodium sulfite was conducted as follows: To the above reaction Berkeley Pit Pyrites were added 10 mole percent of 8.4 millimolar of sulfite ions in 15 mL of water, and the sulfite was added in ten portions over the one hour period at 55° C. Stirring and heating were terminated.

Waste Water Treatment Plant for Copper Refineries ...
Waste Water Treatment Plant for Copper Refineries ...

One or more tanks will receive the very ,acidic, waste streams from the acid plant and the ,copper, refinery. Another tank will receive the ,wastewater, streams from the rest of the facility including the storm water system. The purpose of these Equalization Tanks is to provide a relatively stable feed to the rest of the ,Wastewater Treatment, Plant.

A Role of Sodium Hydroxide in the Process of Hydrogen ...
A Role of Sodium Hydroxide in the Process of Hydrogen ...

The results showed that, with increasing loading of NaOH, the H 2 S breakthrough capacity increases 4−5 times until maximum capacity is reached at about 10% NaOH. This capacity per unit volume of the carbon bed is the same for all carbons and insensitive to their pore structures and surface areas.

sodium hydrosulfide uses
sodium hydrosulfide uses

sodium hydrosulfide, uses. Home; Bez kategorii; ,sodium hydrosulfide, uses; ,sodium hydrosulfide, uses

top 8 most popular sodium hydrosulfide flakes brands and ...
top 8 most popular sodium hydrosulfide flakes brands and ...

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Dechelation of Cd-EDTA complex and recovery of EDTA from ...
Dechelation of Cd-EDTA complex and recovery of EDTA from ...

1/4/2019, · Considering the high concentration of sodium sulfide or sodium hydrosulfide generated from petrochemical waste liquid and soil-washing wastewater containing EDTA and metal-EDTA complexes, treating waste liquid with another waste liquid could be a good potential technology.

sodium hydrosulfide uses
sodium hydrosulfide uses

sodium hydrosulfide, uses. Home; Bez kategorii; ,sodium hydrosulfide, uses; ,sodium hydrosulfide, uses

KR101438713B1 - water treatment agent for separating ...
KR101438713B1 - water treatment agent for separating ...

The present invention relates to a water treatment agent for neutralizing hexavalent chromium in ,wastewater, using ,acidic, water and then reducing and reducing the water to insoluble trivalent chromium having low toxicity and mobility by using diluted water and a water treatment method using the water treatment agent, 500 to 1000 parts by weight ,of acidic, water ,containing, 0.015 to 0.030% by weight of …

Summary Report: Control and Treatment Technology for the ...
Summary Report: Control and Treatment Technology for the ...

In the soluble sulfide precipitation (SSP) process, the sulfide is added in the form of a water-soluble sulfide reagent such as ,sodium, sulfide (Na2S) or ,sodium hydrosulfide, (IMaHS). A more recently developed process adds a slightly soluble ferrous sulfide (FeS) slurry to the ,wastewater, to supply the sulfide ions needed to precipitate the heavy metals.

Summary Report: Control and Treatment Technology for the ...
Summary Report: Control and Treatment Technology for the ...

In the soluble sulfide precipitation (SSP) process, the sulfide is added in the form of a water-soluble sulfide reagent such as ,sodium, sulfide (Na2S) or ,sodium hydrosulfide, (IMaHS). A more recently developed process adds a slightly soluble ferrous sulfide (FeS) slurry to the ,wastewater, to supply the sulfide ions needed to precipitate the heavy metals.

top 8 most popular sodium hydrosulfide flakes brands and ...
top 8 most popular sodium hydrosulfide flakes brands and ...

best chilled cast iron rubber calender rolls ideas and get free shipping

HJ 2056-2018 PDF. - Chinese Standard
HJ 2056-2018 PDF. - Chinese Standard

6.2.5 Vulcanization method and membrane separation method are suitable for treating ,acidic wastewater containing copper, concentration above 80mg/L for recovery of valuable metals; In order to ensure that the effluent is up to standard, it is generally required to be combined with the lime neutralization method and the HDS method.

X-ray photoelectron spectroscopy studies of solvated metal ...
X-ray photoelectron spectroscopy studies of solvated metal ...

Enhanced removal of chromium( vi ) by Fe( iii )-reducing bacterium coated ZVI for ,wastewater treatment,: batch and column experiments. RSC Advances 2019, 9 (62) , 36144-36153. https://doi.org/10.1039/C9RA06516D

Removal of Heavy Metals from Industrial Wastewater by ...
Removal of Heavy Metals from Industrial Wastewater by ...

25/3/2021, · The aim of the present work is to study the effect of the use of different precipitating agents for the ,treatment, of industrial ,wastewater containing, high levels of Cu (II) and Zn (II) using lime (Ca (OH) 2 ), caustic soda (NaOH) and soda ash (Na 2 CO 3) as individual precipitating agent.

Physicochemical and environmental properties of arsenic ...
Physicochemical and environmental properties of arsenic ...

1/7/2020, · The, ASSs, were precipitated and filtered sludge generated during the treatment of acidic wastewater with sodium sulfide. The collected, ASSs, were stored and protected from light and oxygen by HDPE film at the companies’ hazardous waste yard for several years. The process flow scheme of arsenic production is shown in Fig. 1.

The method of extracting arsenic from solutions
The method of extracting arsenic from solutions

The contacting of the solution with the sorbent preferably is carried out in dynamic mode at a filtration rate of 2-4 odels concentration of 150-300 g/l at 40-60 about Or a solution of N 2 SO 4 with a concentration of 25-50 g/l, optionally ,containing, a sulfite or ,sodium, pyrosulphite in the amount of 0.5-1.0 mol/l (60-80 about C.

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