Solvent extraction process development and on-site trial-plant for phenol removal from industrial coal-gasification wastewater [An article from: Chemical Engineering Journal]

This digital document is a journal article from Chemical Engineering Journal, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
A phenol removal process was developed for the coal-gasification wastewater. Based on extraction principles and experimental results, an extracting solvent was selected in consideration of phenol removal, solvent recovery and COD removal for the coal-gasification wastewater. The extraction process conditions were studied, and a flowsheet for phenol removal was proposed. An on-site trial-plant of 2t/h wastewater was set up for testing and industrial verification. The results of the on-site trials showed that more than 93% of the phenols and 80% of COD in the wastewater were removed. The operating cost of the proposed process was approximately balanced by the economic return of the recovered phenols.