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Effect of Rare Earths on Iron-Carbon Micro Electrolysis in Dyeing Wastewater Treatment

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Abstract:

In the paper we first discussed the principle of wastewater treatment by iron-carbon micro electrolysis. And the experimental methods were stated clear soon afterwards. Then we designed the micro electrolysis orthogonal experiments. Discussion of influences of related factors on waste water treatment followed. The main factors are cerium ion additive quantity, ratio of La3+/Ce4+ and pH in wastewater. The experimental results show that 1) The sequence of factors influence on wastewater micro-electrolysis treatment is Ce4+ > pH > La3+ > iron/carbon ratio; 2) The lanthanum and cerium ions have a synergistic effect in the wastewater treatment, and cerium ion plays a main role; 3) When pH is 6, COD removal rate arrives at maximum 89%, however when the pH is in the case of too high or too low, the effect of sewage treatment is not good.

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Periodical:

Advanced Materials Research (Volumes 1010-1012)

Pages:

190-194

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1010-1012.190

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Online since:

August 2014

Authors:

Xiao Gang Chen, Ju Chi Kuang, Min Hua Chen

Keywords:

Dyeing Wastewater, Iron-Carbon Micro Electrolysis, Orthogonal Experiment, Rare Earth (RE)

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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