E3S Web Conf.
Volume 44, 201810th Conference on Interdisciplinary Problems in Environmental Protection and Engineering EKO-DOK 2018
|Number of page(s)
|03 July 2018
Effect of sedimentation time on the granulometric composition of suspended solids in the backwash water from biological activated carbon filters
Poznan University of Technology, Faculty of Civil and Environmental Engineering, Institute of Environmental Engineering, 4 Berdychowo, PL-60965 Poznan, Poland
2 Poznan University of Technology, Faculty of Chemical Technology, Institute of Chemical Technology and Engineering, 4 Berdychowo, PL-60965 Poznan, Poland
* Corresponding author: firstname.lastname@example.org
The paper presents the results of analyzes of the granulometric composition of suspended solids in backwash water from biological activated carbon (BAC) filters and its changes during sedimentation. Backwash water samples were taken during backwashing of two pilot filters after different filtration time. It was found that regardless of the concentration of suspended solids in the collected backwash water, particle sizes vs. their percentage volume contributions for all samples were similar. Particle sizes were in the range of 2–100 μm. However, the two-hour sedimentation for most of the samples proved to be effective (total suspended solids removal up to 93%), which is caused by self-coagulation of the sample.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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