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2012•Journal of Qingdao University of Science and TechnologyRequires access

Pretreatment of Printing and Dyeing Wastewater by Fe-C Microelectrolysis

LI Xing-pan

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Abstract

The pretreatment of printing and dyeing wastewater was studied by Fe-C microelectrolysis.The effects of initial pH,reaction time,iron-carbon dosage and aeration time on the pretreatment results were examined.The obtained optimum conditions were initial pH=3,reaction time 120 min,iron-carbon dosage 100 g·(100 mL)-1 and aeration time 120 min.Under above conditions,CODCr could achive 489 mg·L-1,the colour could decrease by 125 times and the B/C could rise to 0.37.

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The pretreatment of printing and dyeing wastewater was studied by Fe-C microelectrolysis.The effects of initial pH,reaction time,iron-carbon dosage and aeration time on the pretreatment results were examined.The obtained optimum conditions were initial pH=3,reaction time 120 min,iron-carbon dosage 100 g·(100 mL)-1 and aeration time 120 min.Under above conditions,CODCr could achive 489 mg·L-1,the colour could decrease by 125 times and the B/C could rise to 0.37.

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Available abstract

The pretreatment of printing and dyeing wastewater was studied by Fe-C microelectrolysis.The effects of initial pH,reaction time,iron-carbon dosage and aeration time on the pretreatment results were examined.The obtained optimum conditions were initial pH=3,reaction time 120 min,iron-carbon dosage 100 g·(100 mL)-1 and aeration time 120 min.Under above conditions,CODCr could achive 489 mg·L-1,the colour could decrease by 125 times and the B/C could rise to 0.37.

Key concepts: Aeration, Dyeing, Wastewater, Chemistry, Carbon fibers, Pulp and paper industry, Nuclear chemistry, Environmental engineering

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