Treatment of Acidify Waste Fluid in Oilfield by Neutralization/Iron Chipping Micro-Electrolysis/Oxidation/Coagulation Four Process

Abstract:

The composition of acidizing waste fluid is complicated, its chromaticity is high, the demand of chemical oxygen (CODCr) is high and hard to be degraded by biochemical treatment. That is why it causes serious pollution to the environments. The four process--neutralization/iron chipping micro-electrolysis/oxidation/coagulation were used to treat acidizing waste fluid. A new method of treating acidizing waste fluid with the neutralization/iron chipping micro-electrolysis/oxidation/coagulation was put forward. The optimal conditions of the treatment of single reaction are given. The experimental results showed that if neutralization/iron chipping micro-electrolysis/oxidation/coagulation are used, the removal rate of chromaticity is 100%, the removal rate of CODCr is more than 96%, CODCr could be reduced to less than 150mg/L, and the treated wastewater can come to the second discharge standard allowing to be discharged. The analysis result shows that lixivium from solidified sludge cake of per unit operation comply with the second kind of general industrial sold of state standard for pollution control on the storage and disposal site for general industrial sold,GB18599-2001.

• Periodical: Applied Mechanics and Materials (Volumes 295-298)
• Pages: 1267-1272
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.295-298.1267
• Online since: February 2013
• Authors: Bin Chen*, Hong Yan, Huan Jie He
• Keywords: Acidizing Waste Fluid, Coagulation, Iron Chipping Micro-Electrolysis, Neutralization, Oxidation

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