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Purification and treatment system of acid industrial 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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Purification and treatment system of acid industrial wastewater
Chromium Total - Hach
Chromium Total - Hach

• ,Trivalent Chromium, Standard Solution, 50 mg/L Cr3+ • 5-mL volumetric pipet, Class A and pipet filler • Mixing cylinders (4), 25 mL • Deionized water • Pipet, TenSette®, 0.1–1.0 mL and tips 1. Prepare a 12.5 mg/L ,trivalent chromium, standard solution as follows: a. Use a pipet to add 5.00 mL of a 50 mg/L Cr3+ standard solution into a 25-mL

Troubles with trivalent chromium precipitation
Troubles with trivalent chromium precipitation

Troubles with trivalent chromium precipitation, 2006. Hello all Usually I work with hexavalent chrome ,wastewater,. The ,wastewater, is provided by a de-tanning process and the final slurry is a mix among chrome and little bit of organic fibers.

Wastewater: Industrial Metal Finishing
Wastewater: Industrial Metal Finishing

discharge. There are four main reasons to control the pH in ,wastewater,: 1. Protect human health and the environment; fish and other living organisms in rivers and streams. 2. Protect the ,wastewater, infrastructure from corrosion, especially from acidic ,wastewater,. 3.

Removal of Trivalent and Hexavalent Chromium by Seaweed ...
Removal of Trivalent and Hexavalent Chromium by Seaweed ...

13/8/1998, · Biosorption of ,Trivalent Chromium, from ,Wastewater,: An Approach towards Green Chemistry. Chemical Engineering & Technology 2014, 37, 1741-1750. ... Removal and Recovery of ,Chromium, from Solutions Simulating Tannery ,Wastewater, by Strong ,Acid, Cation Exchanger.

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