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Is cod high in acid wastewater

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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Is cod high in acid wastewater
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 ...

Preliminary Ions Removal from Synthetic Iron Solution by ...
Preliminary Ions Removal from Synthetic Iron Solution by ...

Ion removal, is a long problem on natural freshwater resources. In order to modify the adsorption performance to, remove ions, from standard, iron, solution, natural zeolite and natural perlite were treated with deionized water (DI water) as D-zeolite, and, D-perlite. And, 1M sulphuric acid (H 2 SO 4) was used to treat the adsorbent as H-zeolite, and, H-perlite.

(PDF) Removal of heavy metal ions from wastewaters: A ...
(PDF) Removal of heavy metal ions from wastewaters: A ...

Flotation Electrocoagulation (,EC) involves the generation of coagulants in situ by dissolving electrically either aluminum or iron ions from Flotation has nowadays found extensive use in wastewater aluminum or iron electrodes (Chen, 2004).

US3947354A - Removal of heavy metal ions from wastewater ...
US3947354A - Removal of heavy metal ions from wastewater ...

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 effluent.

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