Effects of di-n-butyl phthalate and di-2-ethylhexyl phthalate on pollutant removal and microbial community during wastewater treatment.
Dibutyl Phthalate
/ chemistry
Diethylhexyl Phthalate
/ toxicity
Esters
/ chemistry
Microbiota
/ drug effects
Phthalic Acids
Plasticizers
Plastics
Sewage
/ chemistry
Soil
/ chemistry
Soil Pollutants
/ analysis
Waste Disposal, Fluid
/ methods
Wastewater
Water Pollutants
/ toxicity
Water Pollutants, Chemical
Water Purification
Evolutionary relationship
Microbial community
Pollutant removal
di-2-ethylhexyl phthalate
di-n-butyl phthalate
Journal
Ecotoxicology and environmental safety
ISSN: 1090-2414
Titre abrégé: Ecotoxicol Environ Saf
Pays: Netherlands
ID NLM: 7805381
Informations de publication
Date de publication:
15 Jul 2020
15 Jul 2020
Historique:
received:
09
01
2020
revised:
17
04
2020
accepted:
19
04
2020
pubmed:
1
5
2020
medline:
18
12
2020
entrez:
1
5
2020
Statut:
ppublish
Résumé
Due to the wide use of plastic products and the releasability of plasticizer into surrounding environment, the hazards, residues and effects of phthalic acid esters (PAEs) in ecosystems have been paid more and more attention. Little information is available about the effects of PAEs on the normal wastewater treatment, although the distribution of PAEs in soil and other ecosystems is closely related to the discharge of sewage. In this study, the effects of high concentrations of di-n-butyl phthalate (DBP) and di-2-ethylhexyl phthalate (DEHP) on pollutant removal and the microbial community during landfill leachate treatment was investigated. After domestication, the activated sludge was used in the co-treatment of landfill leachate and simulated domestic wastewater. We verified that this process reduced the toxicity of landfill leachate. However, high concentrations of added DBP and DEHP were removed first, while the removal of these pollutants from raw landfill leachate was limited. The results of high-throughput sequencing revealed that the bacterial diversity was diminished and the microbial community structure was significantly affected by the addition of DBP and DEHP. The DBP and DEHP samples had 79.05% and 82.25% operational taxonomic units (OTU), respectively, in common with the raw activated sludge. Many genera of PAE-degrading bacteria that had no significant evolutionary relationship were found in the raw activated sludge. And the widespread presence of PAE-degrading bacteria could effectively keep the concentrations of PAEs low during the wastewater treatment.
Identifiants
pubmed: 32353604
pii: S0147-6513(20)30504-2
doi: 10.1016/j.ecoenv.2020.110665
pii:
doi:
Substances chimiques
Esters
0
Phthalic Acids
0
Plasticizers
0
Plastics
0
Sewage
0
Soil
0
Soil Pollutants
0
Waste Water
0
Water Pollutants
0
Water Pollutants, Chemical
0
Dibutyl Phthalate
2286E5R2KE
phthalic acid
6O7F7IX66E
Diethylhexyl Phthalate
C42K0PH13C
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
110665Informations de copyright
Copyright © 2020 Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.