Journal
BIORESOURCE TECHNOLOGY
Volume 232, Issue -, Pages 35-43Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.02.011
Keywords
Emerging pollutant; Microalgae; Raceway; Photolysis; Wastewater
Funding
- MINECO [CTM2015-70442-R]
- Regional Government of Castilla y Leon [VA024U14, UIC 71]
- INIA [RTA2013-00056-C03-02]
- Massey University Doctoral Scholarship
- CONACyT-Mexico [237873]
Ask authors/readers for more resources
The degradation of the antibiotic tetracycline, supplied at 100 mu g L (1) in domestic wastewater, was studied in an outdoor, pilot scale, high rate algal pond (HRAP). Effective operation was demonstrated with the biomass concentration and the chemical oxygen demand removal efficiency averaging 1.2 +/- 0.1 gTSS L (1) and 80 +/- 4%, respectively, across all operational periods. Tetracycline removal exceeded 93% and 99% when the HRAP was operated at hydraulic retention times of 4 and 7 days, respectively. Batch tests and pulse testing during HRAP operation repeatedly evidenced the significance of photodegradation as a removal mechanism. Sorption dominated tetracycline removal during the night, but accounted for less than 6% of the total pollutant removal based on sorbed tetracycline extracted from biomass. Overall, these results provide the first demonstration of efficient antibiotic removal, occurring mainly via indirect photodegradation, during relevant HRAP operation (low pollutant concentration, domestic wastewater and natural sunlight). (C) 2017 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available