Alternated biodegradation of naphthalene (NAP), acenaphthylene (ACY) and acenaphthene (ACE) in an aerobic granular sludge reactor (GSBR)

Piotr Ofman , Joanna Struk-Sokołowska , Iwona Skoczko , Józefa Wiater


The paper presents quantitative changes of selected 2- and 3-ring PAHs after process phases of GSBR reactor. The studies have been carried out for 264 cycles of GSBR reactor, during which concentration of naphthalene was increased in the range of 3.00–710.00 μg/L, acenaphthylene 1.00–160.00 μg/L, acenaphthene 3.00–440.00 μg/L. GSBR operating cycle consisted of filling (30 min), mixing (90 min), aeration (540 min), sedimentation (10 min), decanting (30 min) and downtime (20 min) phases. Activated sludge dry mass concentration was 4.00 kg/m3. Conducted studies showed that in GSBR reactor naphthalene was degraded with the highest intensity. Results of the statistical analysis confirmed that naphthalene concentrations were statistically significantly different (α = 0.05) after each individual GSBR process phase, while in case of acenaphthene and acenaphthylene, the differences were observed only between mixing and aeration phases. Additionally, equations estimating concentrations of PAHs in treated wastewater were developed. Selected activated sludge technological parameters (sludge volume index, sludge and hydraulic retention time) and concentration of PAHs were used for equations. The R2 coefficients of equations were above 0.99, which indicates a good adjustment of estimation to observed values.
Author Piotr Ofman (FCEE/DTiEE)
Piotr Ofman,,
- Department of Technologies and Systems in Environmental Engineering
, Joanna Struk-Sokołowska (FCEE/DTiEE)
Joanna Struk-Sokołowska,,
- Department of Technologies and Systems in Environmental Engineering
, Iwona Skoczko (FCEE/DTiEE)
Iwona Skoczko,,
- Department of Technologies and Systems in Environmental Engineering
, Józefa Wiater (FCEE/DTiEE)
Józefa Wiater,,
- Department of Technologies and Systems in Environmental Engineering
Journal seriesJournal of Hazardous Materials, ISSN 0304-3894, (N/A 200 pkt)
Issue year2020
Publication size in sheets0.50
Keywords in EnglishAerobic granular activated sludge, GSBR, PAHs, Naphthalene, Acenaphthylene, Acenaphthene
ASJC Classification Environmental Chemistry2304; Environmental Engineering2305; Health, Toxicology and Mutagenesis2307; Pollution2310; Waste Management and Disposal2311
Internal identifierROC 19-20
Languageen angielski
LicenseOther open licence
Score (nominal)200
Score sourcejournalList
ScoreMinisterial score = 200.0, 14-02-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2018 = 2.055; WoS Impact Factor: 2018 = 7.650 (2) - 2018=7.336 (5)
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