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Supercritical Co2 Extraction

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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Supercritical Co2 Extraction
Benzene and Toluene Biodegradation with Different ...
Benzene and Toluene Biodegradation with Different ...

column study. ,Sulfate,- and ,nitrate,-reducing bacteria enriched from a ,wastewater, treatment plant hardly degraded catechol within 20 days. However, an inoculum from a contaminated site was able to remove 90% of the initial 16.5 mg/L catechol, and Chemical Oxygen Demand was oxidized in parallel. Catechol biodegradation was

Method for anion removal by forming chemical precipitation ...
Method for anion removal by forming chemical precipitation ...

The present disclosure relates to a method for removing anions such as nitrate ion, sulfate ion, chloride ion, and phosphate ion existing in underground water, surface water or waste water. The method involves adding alumina cement and a calcium compound to the water containing the anion followed by applying an electric field thereto, thereby forming a chemical precipitate which is an insoluble complex salt.

Hydrogen Sulfide Corrosion In Wastewater Collection And ...
Hydrogen Sulfide Corrosion In Wastewater Collection And ...

Wastewater, pH measurements were 6 at four of the industrial sites, 5.5 at one site, and 10 at the remaining site. ,Wastewater, sulfide ranged from 0.0 to 0.3 mg/1. The ,wastewater, sulfide level was 0.05 mg/1 at the site where ,wastewater, pH was 5.5, and 0.0 mg/1 at the site where ,wastewater, pH was 10.

Efficacy of a Permeable Reactive Barrier at Nitrate ...
Efficacy of a Permeable Reactive Barrier at Nitrate ...

and sulfate,/chloride content. Next, a 22mm ashed Whatman GFF filter in a Swinex filter holder was attached to the pump and two 60ml collection bottles were filled. Upon returning to lab, one bottle was frozen for total dissolved nitrogen (TDN) and ,nitrate, analysis. The other was acidified using 1.5µM of 5N

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