Welcome to the company ! we have many years of professional experience !
rsdgj@pyzyrsd.com +86 513525609655

waste oil extraction products

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.

Certificate of Honor

Get in touch with us

We will confidentially process your data and will not pass it on to a third party.

waste oil extraction products
Analysis of effluents in chemical industry
Analysis of effluents in chemical industry

Both chromium species exhibit a color and absorb light in the visible region of the spectrum. In the 400 nm region the dichromate ,ion, (Cr2072-) absorbs strongly while the chromic ,ion, (Cr3+) absorbs much less. In the 600 nm region it is the chromic ,ion, that absorbs strongly and the dichromate ,ion, …

Flocculation and wastewater treatment | Enduramaxx ...
Flocculation and wastewater treatment | Enduramaxx ...

Flocculation is based on a chemical process involving adding chemicals to the wastewater in sequence and allowing tiny solid particles to collect together in a larger mass called a floc. As a treatment of wastewater, flocculation is carried out in stages. STAGE 1, Suspended solid particles in wastewater are negatively charged.

Use of selected industrial waste materials in concrete ...
Use of selected industrial waste materials in concrete ...

For 5, 10, and 15% chromite waste and red mud, the reduction of the slumps from the original slump value are 6.66%, 13.33%, and 33.33%, and 23.33%, 30.0%, and 50.0%, respectively. The reductions of slumps are 10.0%, 16.67%, and 40.0% for 5%, 10%, and 15% chromite +red mud mixtures, respectively.

Chemical Oxygen Demand Analysis of Wastewater Using ...
Chemical Oxygen Demand Analysis of Wastewater Using ...

chromium (bichromate or, more commonly, dichromate) for the estimation of organic matter in water. Mohlman and Edwards (1931) developed a method and apparatus for chromic acid oxi dation of wastewater, based on the increased sulfuric acid concen trations suggested by Friedemann and Kendall (1929) for the digestion of biological samples.

Combined biological treatment of high-sulphate wastewater ...
Combined biological treatment of high-sulphate wastewater ...

The biological treatment of A similar cleavage mechanism for trimethylglycine ,wastewater, was intended to be performed first in the under anaerobic conditions has also been reported for anaerobic stage with granules forming methanogens, Clostridium sporogenes (Naumann et al. 1983; von Zum- followed by an aerobic treatment with activated sludge. busch et al. 1994) while the fermentation products of After the …

Removal of Chromate in Trace Concentration Using Ion ...
Removal of Chromate in Trace Concentration Using Ion ...

directly (Ashraf and Shazhad, 2003). ,Ion, exchange a physico-chemical process is an economic and convenient method that can directly and adequately removes heavy metals ions in trace concentration from ,industrial, solutions and ,wastewater,. Arup, et al., 1988, reported the mechanism and some properties of Chromate ,Ion, exchange. The uptake of these

COAGULATION AND FLOCCULATION TREATMENT OF …
COAGULATION AND FLOCCULATION TREATMENT OF …

by using chitosan in coagulation and flocculation process. Therefore, this study was carried out to analyze the effect of chitosan in clarifying textile ,wastewater, in flocculation process in different experimental ,conditions,. The optimum pH, dosage and mixing time needed to achieve the best performance of chitosan in flocculation

Flocculation and wastewater treatment | Cleanawater
Flocculation and wastewater treatment | Cleanawater

Flocculation, is a, water treatment, process where solids form larger clusters, or flocs, to be removed from water. This process can happen spontaneously, or with the help of chemical agents. It is a common method of stormwater treatment,, wastewater treatment,, and in the purification of drinking, water.

Equilibrium Thermodynamic and Density Functional Theory ...
Equilibrium Thermodynamic and Density Functional Theory ...

Water is contaminated by different toxicants such as anions, cations, and organic waste products. In this regard, this study reveals the removal of Cr2O7 ions from water using calix[4]arene modified silica (CMS) resin under the optimized conditions of concentration, pH, resin dosage, and effects of temperature. During the experiments, it was noticed that the adsorption of Cr2O7 ions onto CMS ...

Treatment of 124 -acid wastewater combined flocculation ...
Treatment of 124 -acid wastewater combined flocculation ...

The best flocculation conditions are: pH value of the, wastewater, is 3, formaldehyde Dicyandiamide to, wastewater, at the ratio of 1%, stirred quickly for 2 min and slowly for 10 min at 70 °C ...

(PDF) Removal of chromium(III) from tannery wastewater ...
(PDF) Removal of chromium(III) from tannery wastewater ...

Huang Ammonia (mg/l nitrogen) 325 Nitrate (mg/l nitrogen) 1.07 and Wu [27,28] and Leyva-Raoms et al. [30,31] found that Calcium (mg/l as CaCO3 ) 920 Cr(VI) is adsorbed in the form of the complex ,bichromate,, Magnesium (mg/l as CaCO3 ) 55 HCrO4 − at pH values below 6, whereas activated carbon cat- Turbidity (NTU) 110 alyzes the reduction of Cr(VI) to Cr(III).

Chemicals in Water & Wastewater Treatment
Chemicals in Water & Wastewater Treatment

wastewater, is due to the formation of metallic sulfides, which form as the sulfide produces under as aerobic condition reacts with the metals in ,wastewater,. Temperature: Temperature of ,wastewater, is higher than that of the local water supply because of the addition of warm water from household and ,industrial, activities.

Treatment of 124 -acid wastewater combined flocculation ...
Treatment of 124 -acid wastewater combined flocculation ...

Abstract: Combined flocculation with complex extract process to treat with 1,2,4-,acid wastewater,, dicyandiamide formaldehyde was used as the flocculant; TOA(trioctylamine) as extracting agent, propyl butyl-carbinol as the diluent, NaOH as back-extracting agent, the best flocculation ,conditions, are: pH value of the ,wastewater, is 3, formaldehyde Dicyandiamide to ,wastewater, at the ratio of 1% ...

Chemical precipitation of heavy metals from wastewater by ...
Chemical precipitation of heavy metals from wastewater by ...

Magnesium hydroxy carbonate reacted with ,acid, and heavy metals in the ,wastewater, due to its chemical characters. Magnesium hydroxy carbonate was slightly soluble in water, while Fe(OH) 3 , Cr(OH) 3 and VO 2 OH were hardly soluble in water, so according to the principle of inorganic chemistry, the precipitation reactions proceeded spontaneously.

(PDF) Removal of heavy metal from industrial wastewater ...
(PDF) Removal of heavy metal from industrial wastewater ...

wastewater, effluents (Raji and Anirudhan, 1997). The maximum concentration limit for Cr (VI) for discharge into inland surface waters is 0.1 mg/l and in potable water is 0.05 mg/l (EPA, 1990).A wide range of physical and chemical processes is available for the removal of Cr (VI) from ,wastewater,, such as electro-chemical precipitation, ultrafiltration, ,ion, exchange and reverse osmosis (Rengaraj ...

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City