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What occasion is acid wastewater neutralization suitable for

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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What occasion is acid wastewater neutralization suitable for
Effluent Treatment Plant Design Operation And Analysis Of ...
Effluent Treatment Plant Design Operation And Analysis Of ...

Wastewaters include ,acidic, rinsewaters together with waste acid. Although many plants operate acid recovery plants,(particularly those using Hydrochloric acid), where the mineral acid is boiled away from theiron salts, there remains a large volume of highly acid ,ferrous sulfate, or ,ferrous, …

Selenium removal from waste waters by chemical reduction ...
Selenium removal from waste waters by chemical reduction ...

In this study, the fundamental and practical aspects of the selenate reduction by chromous ions as a novel method to remove selenate from waste waters was investigated mainly in ,sulfate, media. At first, the stoichiometry of selenate reduction by chromous ions was studied.

The Complete Guide On Industrial Pollution Control by H ...
The Complete Guide On Industrial Pollution Control by H ...

In research sponsored by the Air Force, it was found that chrome reduction could be accomplished at neutral to slightly alkaline pH using a combination of ,ferrous sulfate, and sodium sulfide as reducing agents and sodium hydroxide for precipitat­ing heavy metals.

Visible Light Assisted Photocatalytic Degradation of ...
Visible Light Assisted Photocatalytic Degradation of ...

The ,wastewater, sample ,containing, Cr(VI) was introduced with Heber-Immersion type photoreactor. In the test a precisely weighted quantity of photocatalysts was added in the flask, adjusting pH with NaOH and HCl in the different flask at pH 2 to 7. The flask was sited ,under, Heber-Immersion type photoreactor, by steady shaking by magnetic stirrer.

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