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Removal of Phenol from Coke-Oven Wastewater by Cross-Flow Nanofiltration Membranes

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Abstract:

This study investigated the phenol rejection characteristics of some nanofiltration membranes during treatment of coke wastewater. Four different types of composite polyamide commercial nanofiltration membranes (Sepro, USA) were tested under different operating conditions including transmembrane pressure, pH and recovery rate. When pressure was increased from 4 to 16 bars, the percentage of rejection of phenol in the permeate increased from 72.5% to 97.7% while yielding a high flux of 118 litres per square meter per hour(LMH) at a volumetric cross flow rate of 800 litres per hour at pH 10 (in recirculation mode) in case of NF1 membrane. The effect of recovery rate on the rejection coefficient of phenol and flux was also studied in concentrated mode and found that a recovery rate of up 55% nanofiltration was successfully operated without much decline of flux and rejection coefficient. Finally, nanofiltration had great efficiency in phenol removal from industrial wastewater and was considered suitable regarding its operation.

Keywords: coke wastewater; cross-flow mode; nanofiltration; phenol removal; recovery rate

Document Type: Research Article

DOI: https://doi.org/10.2175/106143013X13596524516824

Publication date: 2013-05-01

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  • Water Environment Research (WER) is published monthly, including an annual Literature Review. A subscription to WER includes access to the latest content back to 1992, as well as access to fast track articles. An individual subscription is valid for 12 months from month of purchase.

    Water Environment Research (WER) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

    Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
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