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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