Abstract
The effect of different microwave (MW) pretreatment on the removal of triclosan (TCS) was assessed in ten semi-continuous flow anaerobic digesters operated under thermophilic (TH) and mesophilic (MH) conditions at sludge retention times (SRTs) of 20, 12 and 6 days. The antimicrobial TCS was quantified in total and supernatant (liquid) phases of the digester influents and effluents. TCS occurred predominantly in the solid (sorbed) fraction of total phase. MW pretreatment was found to improve TCS removals at TH temperatures at the highest and lowest SRTs. Digesters pretreated with shorter holding time (1 min) achieved better TCS elimination under TH and MH conditions at the SRT of 6 d. Higher chemical oxygen demand and biopolymer solubilization was achieved at higher temperature/holding time combinations. Regarding methane production, MW final temperature was an important parameter under MH whereas holding time played a significant role under TH conditions.
| Original language | English |
|---|---|
| Title of host publication | Water Environment Federation Technical Exhibition and Conference 2017, WEFTEC 2017 |
| Publisher | Water Environment Federation |
| Pages | 1827-1847 |
| Number of pages | 21 |
| ISBN (Print) | 9781510863682 |
| Publication status | Published - 2017 |
| Event | Water Environment Federation Technical Exhibition and Conference 2017, WEFTEC 2017 - Chicago, United States Duration: 30 Sept 2017 → 4 Oct 2017 |
Publication series
| Name | Water Environment Federation Technical Exhibition and Conference 2017, WEFTEC 2017 |
|---|---|
| Volume | 3 |
Conference
| Conference | Water Environment Federation Technical Exhibition and Conference 2017, WEFTEC 2017 |
|---|---|
| Country/Territory | United States |
| City | Chicago |
| Period | 30/09/17 → 4/10/17 |
Bibliographical note
Publisher Copyright:Copyright © 2017 Water Environment Federation.
Funding
This work has been carried out with the financial support of TUBITAK - International Research Fellowship Program (2214/A) and NSERC CRD Grant (CRDP J462765-13).
| Funders | Funder number |
|---|---|
| TUBITAK | |
| Intelligence Community Postdoctoral Research Fellowship Program | 2214/A |
| Natural Sciences and Engineering Research Council of Canada | CRDP J462765-13 |
Keywords
- Anaerobic digestion
- Antimicrobial
- Biogas
- Biopolymers
- Microwave
- Sludge retention time
- Solubilization
- Thermal pretreatment
- Triclosan
- Wastewater treatment sludge
