Separating powdered activated carbon (PAC) from wastewater – Technical process options and assessment of removal efficiency
Loading...
Authors
Krahnstöver, Thérèse
Author (Corporation)
Publication date
10.2018
Typ of student thesis
Course of study
Collections
Type
01A - Journal article
Editors
Editor (Corporation)
Supervisor
Parent work
Journal of Environmental Chemical Engineering
Special issue
DOI of the original publication
Link
Series
Series number
Volume
6
Issue / Number
5
Pages / Duration
5744-5762
Patent number
Publisher / Publishing institution
Elsevier
Place of publication / Event location
Edition
Version
Programming language
Assignee
Practice partner / Client
Abstract
Wastewater treatment plant effluents often contain anthropogenic micropollutants that can have harmful effects on aquatic ecosystems in the receiving water body. For this reason, more and more plants are being equipped with advanced treatment stages for micropollutant removal, such as ozonation or activated carbon adsorption. If powdered activated carbon (PAC) is used, it is crucial to retain the loaded PAC particles within the system and prevent PAC leakage into the environment. A range of different PAC separation processes is available today, but a systematic method comparison and derivation of practical recommendations is still missing. To fill this gap, we reviewed 27 pilot-, large- and full-scale PAC applications in the field of wastewater treatment with a specific focus on the implemented PAC separation processes. The operating conditions and removal efficiencies of all set-ups were collated and summarized. We also compared analytical methods to determine the residual PAC content in treatment plant effluents with regard to their sensitivity and selectivity. On this basis, recommendations were compiled to efficiently design and operate PAC separation stages and monitor their process quality.
Keywords
Micropollutants, Wastewater, powdered activated carbon, solid separation, solid concentration
Subject (DDC)
Event
Exhibition start date
Exhibition end date
Conference start date
Conference end date
Date of the last check
ISBN
ISSN
2213-2929
2213-3437
2213-3437
Language
English
Created during FHNW affiliation
Yes
Strategic action fields FHNW
Publication status
Published
Review
Peer review of the complete publication
Open access category
License
Citation
Krahnstöver, T., & Wintgens, T. (2018). Separating powdered activated carbon (PAC) from wastewater – Technical process options and assessment of removal efficiency. Journal of Environmental Chemical Engineering, 6(5), 5744–5762. https://doi.org/10.1016/j.jece.2018.09.001