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Experimental Study on High Salt Acid Pretreatment of Refinery Wastewater

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Abstract:

We pretreat the high salt level, high CODcr and strong acid refinery wastewater and analyse the influence of the iron-carbon ratio and the pH to ferric-carbon micro-electrolysis. Thereby we confirmed the reaction time and mixture component. Furthemore, we discussed the influence of supersaturated sodium on ferric-carbon micro-electrolysis. The results show that ferric-carbon micro-electrolysis can take full advantage of high salt, strongly acidic water quality characteristics of refinery wastewater to confirm that the removal rate of CODcr can reach to 49%, at the conditions of the iron-carbon ratio of 1:1, micro-electrolysis time is 45 minutes and the pH rise to 8 by lime milk. In addition, the decoloring effect is remarkable.

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Periodical:

Advanced Materials Research (Volume 859)

Pages:

369-372

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.859.369

Citation:

Cite this paper

Online since:

December 2013

Authors:

Mei Tao*, Ting Ting Kang

Keywords:

Ferric-Carbon Micro-Electrolysis, Strong Acid Refinery Wastewater, Supersaturated Sodium Over-Saturation

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