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Water Filtration System Reviews

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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Water Filtration System Reviews
Removal of nitrogen in wastewater by polyvinyl alcohol ...
Removal of nitrogen in wastewater by polyvinyl alcohol ...

Removal of nitrogen in ,wastewater, by ,polyvinyl alcohol, (,PVA,)-immobilization ... were hardened in the solution of boric ,acid, and 1% calcium chloride. The subsequent spherical beads in 3-7mm diameter were washed with distilled water, and adapted with a synthetic ,wastewater, before

Using Zeolite/Polyvinyl alcohol/sodium alginate ...
Using Zeolite/Polyvinyl alcohol/sodium alginate ...

1/6/2020, · Poly (vinyl alcohol) (PVA) is, a nontoxic water-soluble synthetic polymer,, which is extensively utilized in biochemical, medical, and industrial applications as a result of its compatibility with the alive body [ Yamaura et al., 1990 ]. The combination of PVA in convinced hydrogel confirms its excellent water rejection possessions.

Adsorption of polyvinyl alcohol from wastewater by ...
Adsorption of polyvinyl alcohol from wastewater by ...

Polyvinyl alcohol (PVA), a sizing agent used in the tex-tile and printing industry, was the main pollutant in industrial wastewater. Three main processes, Fenton oxi-dation process (Lin & Lo ; Hachem et al. ; Georgiou et al. ; Baban et al. ; Selcuk et al. ),

Synthesis of Modified Starch/Polyvinyl Alcohol Composite ...
Synthesis of Modified Starch/Polyvinyl Alcohol Composite ...

Typical textile printing and dyeing wastewater usually contains dyes, polyvinyl alcohol (PVA), starch, and so on [ 1, 2 ]. Some dyes may be further degraded into toxic and carcinogenic substances, which will affect human health [ 3 ]. The efficient and complete removal of dyes from effluents is necessary.

Synthesis of Modified Starch/Polyvinyl Alcohol Composite ...
Synthesis of Modified Starch/Polyvinyl Alcohol Composite ...

Typical textile printing and dyeing wastewater usually contains dyes, polyvinyl alcohol (PVA), starch, and so on [ 1, 2 ]. Some dyes may be further degraded into toxic and carcinogenic substances, which will affect human health [ 3 ]. The efficient and complete removal of dyes from effluents is necessary.

Study of the treatment of domestic sewage using PVA gel ...
Study of the treatment of domestic sewage using PVA gel ...

Recently, several researchers have explored adding polyvinyl alcohol (PVA) gel beads to moving-bed biofilm reactors as a biomass carrier. The PVA gel is composed of 4 mm spherical beads with a network of 10–20 micron pores in each bead that allow cultivation of bacteria in a sheltered environment and thus reduces sloughing of the biomass ( Hoa et al. 2006 ; Gani et al. 2016 ).

Facile Preparation of Tannic Acid–Poly(vinyl alcohol ...
Facile Preparation of Tannic Acid–Poly(vinyl alcohol ...

Removal of bromothymol blue (BTB) and methylene blue (MB) from wastewater using polyvinyl alc. (PVA) has been elucidated in the present work. PVA exhibited high adsorption capacity and more active sites for the highly efficient removal of these toxic dyes. The impact of several variables such as concn., contact time, pH and temp. were studied.

Adsorption of Dyes Using Poly(vinyl alcohol) (PVA) and PVA ...
Adsorption of Dyes Using Poly(vinyl alcohol) (PVA) and PVA ...

5/2/2020, · The study on the unmodified PVA as an adsorbent for methylene blue dye from wastewater has been carried out at 303–333 K by Umoren et al. The results revealed that the maximum adsorption capacity of PVA was 13.80 mg/g at 303 K.

Reactive toughening of polyvinyl alcohol hydrogel and its ...
Reactive toughening of polyvinyl alcohol hydrogel and its ...

In order to improve the hydraulic impact resistance of a polyvinyl alcohol (PVA) hydrogel as a microorganism immobilization material and meet the requirements of long-time aeration of sewage treatment, toughened PVA hydrogel beads were prepared by co-crosslinking with glycerol through the boric acid (H 3 BO 3) – chemical crosslinking method.

Degradation of polyvinyl alcohol in aqueous solutions ...
Degradation of polyvinyl alcohol in aqueous solutions ...

wastewater contaminated with PVA. This investigation was conducted in Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan, Taiwan, during 2010–2011. Materials and methods PVA with a molecular weight of 22,000 was obtained from Showa. Sodium persulfate (Na 2S 2O 8, 99 %) was obtained from Sigma. HNO

Improvement of biodegradability of PVA-containing ...
Improvement of biodegradability of PVA-containing ...

Read "Improvement of biodegradability of ,PVA,-containing ,wastewater, by ionizing radiation pretreatment, Environmental Science and Pollution Research" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

POLYVINYL ALCOHOL (PVA)
POLYVINYL ALCOHOL (PVA)

Polyvinyl alcohol, for food use is an odourless and tasteless, translucent, white or cream colored granular powder. It is soluble in water, slightly soluble in ethanol, but insoluble in other organic solvents. Typically a 5% solution of ,polyvinyl alcohol, exhibits a pH in the range of 5.0 to 6.5. ,Polyvinyl alcohol, has a melting point of 180 to 190°C.

Facile Preparation of Tannic Acid–Poly(vinyl alcohol ...
Facile Preparation of Tannic Acid–Poly(vinyl alcohol ...

mixed solution of PVA and sodium alginate (SA) to form TA− PVA/SA hydrogel beads, which can be utilized to purify the MB dye from sewage. TA can increase the adsorption capacity and thermal stability. The reaction between SA and CaCl 2 can form a shell of hydrogel beads, and the cross-linking of boric

Improvement of biodegradability of PVA-containing ...
Improvement of biodegradability of PVA-containing ...

Read "Improvement of biodegradability of ,PVA,-containing ,wastewater, by ionizing radiation pretreatment, Environmental Science and Pollution Research" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

Study of the treatment of domestic sewage using PVA gel ...
Study of the treatment of domestic sewage using PVA gel ...

Recently, several researchers have explored adding polyvinyl alcohol (PVA) gel beads to moving-bed biofilm reactors as a biomass carrier. The PVA gel is composed of 4 mm spherical beads with a network of 10–20 micron pores in each bead that allow cultivation of bacteria in a sheltered environment and thus reduces sloughing of the biomass ( Hoa et al. 2006 ; Gani et al. 2016 ).

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