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Acid potassium dichromate is contained in the wastewater of an electroplating plant

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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Acid potassium dichromate is contained in the wastewater of an electroplating plant
A study on treatment methods of spent pickling liquor ...
A study on treatment methods of spent pickling liquor ...

One of the major environmental problems for the ,steel, industries comes from pickling ,plant, waste. ,Steel, finishing operations, such as pickling, galvanizing and plating, involve a surface cleaning process to eliminate the scale, rust and dust. This process is carried out by immersion of ,steel, into hot acidic solution. Spent baths must be dumped

Raw materials recovery from spent hydrochloric acid-based ...
Raw materials recovery from spent hydrochloric acid-based ...

1/6/2018, · The hydrochloric ,acid, recovered during tests reached a concentration above 18%, representing a suitable precursor to produce a solution of CaCl 2 by adding ,hydrated lime,. Alternatively, it may be used within the industry of detergents (e.g. a 10% solution ,can, be used as a washing agent for concrete or as a pH modifier in swimming pools).

(PDF) Recovery of Zinc fromTreatment of Spent Acid ...
(PDF) Recovery of Zinc fromTreatment of Spent Acid ...

with hydrochloric ,acid, in order to remove ,iron, oxides such as r ust or scale, and (3) rinsing with water and fluxing to chemically activate the ,steel, surface and enhance the reaction with zinc [ 3 ].

Treatment of Industrial Effluents - Environmental Pollution
Treatment of Industrial Effluents - Environmental Pollution

17/9/2016, · The combined wastewater from, the plant, is proposed to be, treated with lime, followed by clarification, and sludge disposal., Based on, the, local condition prevailing at, the, factory site two alternative, sludge disposal, methods have been suggested. The schemes are shown in, the, flow sheets (Figs. 16 and 17).

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