2010•Environmental Science & TechnologyRequires access

Study on Pretreatment of Dyeing Wastewater by Circulating Micro-electrolysis Process with Aeration

Deng Xing-xin

Abstract

The circulating micro-electrolysis process with aeration was employed for pretreatment of dyeing wastewater.The results showed that the removal rate of color and COD were 95.0% and 68.0%,respectively,when aeration flow was 1.0 m3/h,circulating time was 6 h,pH value was 3,Fe/C ratio was 1 and wastewater flow was 1 L/min.Approving removal efficiency for dyeing wastewater was achieved in this process with the low cost and convenient pretreatment.

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Key concepts: Aeration, Wastewater, Electrolysis, Pulp and paper industry, Dyeing, Chemistry, Waste management, Environmental science