Biofilter with innovative filling for low-temperature treatment of sewage from de-icing airport runways

Joanna Rodziewicz , Artur Mielcarek , Wojciech Janczukowicz , Kamila Ostrowska , Krzysztof Jóźwiakowski , Piotr Bugajski , Andrzej Jucherski

Abstract

The hydraulic loading of biofilter (HL), temperature and C/N ratio - these factors influence on nitrogen and carbon removal efficiency from airport wastewater containing de-icing agents. The vast area of airports and significant fluctuations in atmospheric precipitation contribute to huge differences in wastewater flows discharged to treatment systems. The aim of the study was to determine the influence of the hydraulic loading on nitrogen and organic compounds removal in biofilters in low temperatures. The novelty of the paper results from low temperatures (0, 4 and 8 °C), specific wastewater and biofilter filling (light weight aggregates prepared from fly ashes from sewage sludge thermal treatment (FASST LWA). The study was divided into four series differing in the hydraulic loading (1.0, 3.0, 5.0, and 10.0 L·m−2·d−1). In each series, biofilters (filled with FASST LWA) were operated at the temperature of 0, 4, 8 °C and 25 °C. The organic carbon to nitrogen ratio was 0.5. The study showed the effective removal of nitrogen at low temperatures, even at high HL. The highest efficiency of nitrogen removal at the temperature of 0 °C (34.93 ± 4.54%) was obtained at 5.0 L·m−2·d−1. The hydraulic loading and temperature affected the efficiency of nitrogen and COD removal. The presented experiment demonstrated that the use of biofilters filled with FASST LWA may offer an effective and sustainable method for the treatment of airport de-icing wastewater.
Author Joanna Rodziewicz
Joanna Rodziewicz,,
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, Artur Mielcarek
Artur Mielcarek,,
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, Wojciech Janczukowicz
Wojciech Janczukowicz,,
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, Kamila Ostrowska
Kamila Ostrowska,,
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, Krzysztof Jóźwiakowski
Krzysztof Jóźwiakowski,,
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, Piotr Bugajski (FoEEaLS / DoSEaWM)
Piotr Bugajski,,
- Department of Sanitary Engineering and Water Management
, Andrzej Jucherski
Andrzej Jucherski,,
-
Journal seriesSeparation and Purification Technology, ISSN 1383-5866, e-ISSN 1873-3794, (N/A 140 pkt)
Issue year2020
Vol242
No116761
Pages1-8
Publication size in sheets0.5
Keywords in EnglishAirport de-icing agents, Low temperature, Biofilters with light weight aggregates, Hydraulic loading, Nutrients removal
ASJC Classification1506 Filtration and Separation; 1602 Analytical Chemistry
DOIDOI:10.1016/j.seppur.2020.116761
URL https://www.sciencedirect.com/science/article/pii/S1383586620300265/pdfft?md5=1219893144fcec96dec7a6adf9daece2&pid=1-s2.0-S1383586620300265-main.pdf
Languageen angielski
Score (nominal)140
Score sourcejournalList
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.394; WoS Impact Factor: 2018 = 5.107 (2) - 2018=4.551 (5)
Citation count*
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Finansowanie This study was financed under by Project No. 18.610.008-300 of the University of Warmia and Mazury in Olsztyn, Poland
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