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deep well drilling residue emission treatment technology co. ltdt technology co ltd

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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deep well drilling residue emission treatment technology co. ltdt technology co ltd
Removal of Cr( vi ) from wastewater by a two-step method ...
Removal of Cr( vi ) from wastewater by a two-step method ...

Unfortunately, the presence of heavy metals, even at small concentrations, in usable water is detrimental to human health; moreover, chromium compounds that are widely used in several industrial processes, such as printing, electroplating, leather tanning, polishing and pigment industries, lead to the emission of Cr (VI) and thus contribute to heavy-metal pollution.

Nanomaterials for the Removal of Heavy Metals from Wastewater
Nanomaterials for the Removal of Heavy Metals from Wastewater

Heavy metals could be released into water mainly through the mining, electroplating, metallurgy, chemical plants, agriculture and household wastewater etc. Heavy metals such as Pb, Zn, Cu, Hg, etc. could pose a severe threat to human’s health because they can be accumulated biologically in the food chain [ 1 ].

Mycoremediation of heavy metals: processes mechanisms ...
Mycoremediation of heavy metals: processes mechanisms ...

6/1/2021, · However, the time, pH, temperature, concentration of HMs, the dose of fungal biomass, and shaking rate are the most influencing factors that affect the bioremediation of HMs and vary with characteristics of the fungi and nature of the HMs.

Heavy Metal Complexes Wastewater Treatment with Chelation ...
Heavy Metal Complexes Wastewater Treatment with Chelation ...

Using electroplating wastewater containing copper, nickel and chromium complexes with EDTA, ammonia and citric acid as an example, this study investigated the reaction mechanism and influencing factors of heavy metal removal efficiency from metal complexes using dithiocarbamates. The stability of chelating complexes was evaluated.

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