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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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oil gas field fracturing flow-back fluids recycled waste
Fluoride Wastewater Treatment by Adsorption onto ...
Fluoride Wastewater Treatment by Adsorption onto ...

Vaishali Tomar, Dinesh Kumar, A critical ,study, on efficiency of different materials for ,fluoride removal, from aqueous media, Chemistry Central Journal, 10.1186/1752-153X-7-51, 7, 1, (51), (2013). Crossref

Removal of fluoride from industrial wastewater by using ...
Removal of fluoride from industrial wastewater by using ...

The study found out that the composite synergy between different materials, morphological and structural control, and the strengthening of their functional groups can effectively improve the ability of the adsorbents for removing fluoride. This study has prospected the direction of various adsorbents for removing fluoride in wastewater, which would serve as guiding significance for future research in the …

Removal of fluoride from industrial wastewater by using ...
Removal of fluoride from industrial wastewater by using ...

The study found out that the composite synergy between different materials, morphological and structural control, and the strengthening of their functional groups can effectively improve the ability of the adsorbents for removing fluoride. This study has prospected the direction of various adsorbents for removing fluoride in wastewater, which would serve as guiding significance for future research in the …

Fluoride Removal by Clays Geomaterials Minerals Low ...
Fluoride Removal by Clays Geomaterials Minerals Low ...

effective ,removal, of ,fluoride, from drinking and ,wastewater, ... tap water ,containing, 10 ppm ,fluoride, to below 1.5 mg/l, ... little or no effects ,on fluoride removal, in batch ,study,. The soil could be regenerated by ,acid, rising and directly passing

Fluoride ion adsorption from wastewater using magnesium(II ...
Fluoride ion adsorption from wastewater using magnesium(II ...

A set of wastewater solutions with different pHs was used in the adsorption experiment. The fluoride removal process was studied over the pH range of 2 to 12, the results for which are shown in Figure 1. It was found that the pH of the wastewater plays a significant role in the adsorption process.

A Review on the Removal of Fluoride using Inexpensive ...
A Review on the Removal of Fluoride using Inexpensive ...

The effectiveness of maximum ,fluoride removal, for both adsorbents is seen as good at 150 rpm. Column experiments gave efficiency in initial stage as 78 percent yet the effectiveness continues diminishing. [11] N. Gandhi et al. (2012) researched the ,fluoride removal, efficiency using inexpensive adsorbents in water and ,waste water,.

Ground Water Contamination with Fluoride and Potential ...
Ground Water Contamination with Fluoride and Potential ...

1/6/2012, · Removal of fluoride from water has been researched on employing a number of materials among which are bauxite, gypsum, magnesite and their composite filters [2,46,47], Calcium chloride (C a C l 2) and Sodium dihydrogen phosphate (N a H 2 P O 4) as co-precipitation reagents in contact precipitation [33, 34], cow bone char in batch and fixed bed [7, 32], fish bone , activated carbon and …

FLUORIDE REMOVAL FROM WATER – A REVIEW
FLUORIDE REMOVAL FROM WATER – A REVIEW

Defluoridation is the process of ,removal, of ,fluoride, ion from water or ,wastewater,. This can be possible in two ways: (i) Blending the existing water supply with the water ,containing, low concentration of ,fluoride, (or) (ii) treating the ,fluoride, contained water in two ways; (a) Centralized treatment method - This method is best suited in developed nations where cost is not a factor.

(PDF) A critical study on efficiency of different ...
(PDF) A critical study on efficiency of different ...

Fluoride removal from water by a mechanochemically synthesized anion clay (meixnerite) and its calcinations product was studied at initial fluoride: meixnerite molar ratios (FI:meix) of 0.1 to 2.0 the theoretical fluoride uptake limit for meixnerite [66].Al-Ce hybrid adsorbent by co-precipitation method was prepared and used for fluoride removal [67].

[PDF] Removal of Fluoride Ions from Electronic Industrial ...
[PDF] Removal of Fluoride Ions from Electronic Industrial ...

Removal of Fluoride Ions from Electronic Industrial Wastewater Using Lime Stone Slurry. This study attempted to utilize ultrafine precipitated calcium carbonate for fluoride removal from the wastewater of electronics industries. An average particle size of the calcium carbonate was 0.96 μm, and pH of the aqueous slurry was 10 with 70% in mass.

FLUORIDE ION REMOVAL USING COFFEE GROUNDS BASED ADSORBENT
FLUORIDE ION REMOVAL USING COFFEE GROUNDS BASED ADSORBENT

Fluoride removal, on ,wastewater, is currently a key research due to the rapid development on semiconductor manufacturing and metal processing industry. This ,study, performed several batch adsorption tests to determine the ,removal, efficiency and adsorption capacity of ,fluoride, on spent coffee grounds based adsorbent (SCGA). The

FLUORIDE ION REMOVAL USING COFFEE GROUNDS BASED ADSORBENT
FLUORIDE ION REMOVAL USING COFFEE GROUNDS BASED ADSORBENT

Fluoride removal, on ,wastewater, is currently a key research due to the rapid development on semiconductor manufacturing and metal processing industry. This ,study, performed several batch adsorption tests to determine the ,removal, efficiency and adsorption capacity of ,fluoride, on spent coffee grounds based adsorbent (SCGA). The

A Review on the Removal of Fluoride using Inexpensive ...
A Review on the Removal of Fluoride using Inexpensive ...

The effectiveness of maximum ,fluoride removal, for both adsorbents is seen as good at 150 rpm. Column experiments gave efficiency in initial stage as 78 percent yet the effectiveness continues diminishing. [11] N. Gandhi et al. (2012) researched the ,fluoride removal, efficiency using inexpensive adsorbents in water and ,waste water,.

Fluoride removal from water using crushed limestone
Fluoride removal from water using crushed limestone

some of these fluoride removal methods have the potential for use in treating wastewater, either due to low efficiency, high cost or production of huge amount of sludge containing fluoride they may not be preferable for application in fluoride removal from groundwater. Calcium containing compounds/materials have

Fluoride Wastewater Treatment by Adsorption onto ...
Fluoride Wastewater Treatment by Adsorption onto ...

Vaishali Tomar, Dinesh Kumar, A critical ,study, on efficiency of different materials for ,fluoride removal, from aqueous media, Chemistry Central Journal, 10.1186/1752-153X-7-51, 7, 1, (51), (2013). Crossref

FLUORIDE REMOVAL FROM WATER – A REVIEW
FLUORIDE REMOVAL FROM WATER – A REVIEW

Defluoridation is the process of ,removal, of ,fluoride, ion from water or ,wastewater,. This can be possible in two ways: (i) Blending the existing water supply with the water ,containing, low concentration of ,fluoride, (or) (ii) treating the ,fluoride, contained water in two ways; (a) Centralized treatment method - This method is best suited in developed nations where cost is not a factor.

[PDF] Removal of Fluoride Ions from Electronic Industrial ...
[PDF] Removal of Fluoride Ions from Electronic Industrial ...

Removal of Fluoride Ions from Electronic Industrial Wastewater Using Lime Stone Slurry. This study attempted to utilize ultrafine precipitated calcium carbonate for fluoride removal from the wastewater of electronics industries. An average particle size of the calcium carbonate was 0.96 μm, and pH of the aqueous slurry was 10 with 70% in mass.

Fluoride removal from water using crushed limestone
Fluoride removal from water using crushed limestone

some of these fluoride removal methods have the potential for use in treating wastewater, either due to low efficiency, high cost or production of huge amount of sludge containing fluoride they may not be preferable for application in fluoride removal from groundwater. Calcium containing compounds/materials have

Fluoride Removal by Clays Geomaterials Minerals Low ...
Fluoride Removal by Clays Geomaterials Minerals Low ...

effective ,removal, of ,fluoride, from drinking and ,wastewater, ... tap water ,containing, 10 ppm ,fluoride, to below 1.5 mg/l, ... little or no effects ,on fluoride removal, in batch ,study,. The soil could be regenerated by ,acid, rising and directly passing

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