Industrial effluent treatment with immersed MBRs: Treatability and cost
Author | Qiblawey H. |
Author | Judd S. |
Available date | 2020-04-27T08:34:17Z |
Publication Date | 2019 |
Publication Name | Water Science and Technology |
Resource | Scopus |
ISSN | 2731223 |
Abstract | A comprehensive OPEX analysis for both municipal and industrial wastewaters has been conducted encompassing energy, critical component (membrane) replacement, chemicals consumption, waste disposal and labour. The analysis was preceded by a review of recent data on industrial effluent treatability with reference to published chemical oxygen demand (COD) removal data for four effluent types: food and beverage, textile, petroleum and landfill leachate. Outcomes revealed labour costs to be the most significant of those considered, contributing 50% of the OPEX for a 10,000 m3/day capacity municipal wastewater treatment works. An analysis of the OPEX sensitivity to 12 individual parameters (labour cost, flux, electrical energy cost, membrane life, feed COD, membrane cost, membrane air-scour rate, chemicals cost, waste disposal cost, mixed liquor suspended solids (MLSS) concentration, recirculation ratio, and transmembrane pressure) revealed OPEX to be most sensitive to labour effort and/or costs for all scenarios considered other than a large (100,000 m3/day capacity) works, for which flux and electrical energy costs were found to be slightly more influential. It was concluded that for small- to medium-sized plants cost savings are best made through improving the robustness of plants to limit manual intervention necessitated by unforeseen events, such as electrical/mechanical failure, foaming or sludging. - IWA Publishing 2019. |
Sponsor | This work was made possible by the support of a National Priorities Research Programme (NPRP) grant from the Qatar National Research Fund (QNRF), grant reference number NPRP8-1115-2-473. The statements made herein are solely the responsibility of the authors. |
Language | en |
Publisher | IWA Publishing |
Subject | Industrial effluent Membrane bioreactor Operating cost Sensitivity Treatability |
Type | Article |
Pagination | 762-772 |
Issue Number | 4 |
Volume Number | 80 |
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Chemical Engineering [1141 items ]