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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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pressure test pump water
US3947354A - Removal of heavy metal ions from wastewater ...
US3947354A - Removal of heavy metal ions from wastewater ...

Abstract. Concentrations of undesirable heavy metals in industrial ,wastewater, are reduced to below or very close to the most stringent aqueous discharge limits. This is accomplished by forming an insoluble metal-polyelectrolyte complex which can be easily and economically removed from the …

Removing Heavy Metals From Wastewater
Removing Heavy Metals From Wastewater

pH - A term used to describe the ,acid,-base characteristics of water, typically measured by a pH meter. Specifically, the concentration of H+ ,ions, in water. Formally, pH is the negative logarithm of the H + concentration, i.e., pH = -log [H+]. The following values indicate the classification of a water: pH < 7 refers to ,acid, …

Removal of heavy metals from wastewater using agricultural ...
Removal of heavy metals from wastewater using agricultural ...

The ,removal, of other metals such as zinc, cobalt, nickel, thallium (Tl), and ,iron, are also of great interest due to their existence in various industrial effluents and their high toxicity. Zinc has effective impacts on several biochemical processes of living tissues, where high concentrations cause several health issues such as skin irritations, stomach nausea, cramps, vomiting, and anemia ( Abbas et al. 2016 ).

Removal of Heavy Metal Ions from Water and Wastewaters by ...
Removal of Heavy Metal Ions from Water and Wastewaters by ...

28/9/2020, · The most commonly used methods of metal removal from wastewater include methods based on the precipitation of metal hydroxides or sulfides, ion exchange on chelating ion exchangers, evaporation in vacuum evaporators, reverse osmosis process, membrane filtration, electrochemical processing technologies, adsorption on various materials, co-precipitation with ferrite, or the use of …

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