Micropollutant removal in an algal treatment system fed with source separated wastewater streams

被引:184
作者
de Wilt, Arnoud [1 ]
Butkovskyi, Andrii [1 ,2 ]
Tuantet, Kanjana [1 ]
Leal, Lucia Hernandez [2 ]
Fernandes, Tania V. [3 ]
Langenhoff, Alette [1 ]
Zeeman, Grietje [1 ]
机构
[1] Wageningen Univ, Sub Dept Environm Technol, NL-6700 AA Wageningen, Netherlands
[2] Ctr Excellence Sustainable Water Technol, Wetsus, NL-8900 CC Leeuwarden, Netherlands
[3] Netherlands Inst Ecol NIOO KNAW, Dept Aquat Ecol, NL-6700 AB Wageningen, Netherlands
关键词
Micropollutants; Wastewater; Algae; Source separation; Pharmaceuticals; LIGHT-PATH PHOTOBIOREACTOR; CARE PRODUCTS PPCPS; ANAEROBIC TREATMENT; TRANSFORMATION KINETICS; BLACK WATER; URINE; PHARMACEUTICALS; PHOSPHORUS; CARBAMAZEPINE; DEGRADATION;
D O I
10.1016/j.jhazmat.2015.10.033
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Micropollutant removal in an algal treatment system fed with source separated wastewater streams was studied. Batch experiments with the microalgae Chlorella sorokiniana grown on urine, anaerobically treated black water and synthetic urine were performed to assess the removal of six spiked pharmaceuticals (diclofenac, ibuprofen, paracetamol, metoprolol, carbamazepine and trimethoprim). Additionally, incorporation of these pharmaceuticals and three estrogens (estrone, 17 beta-estradiol and ethinylestradiol) into algal biomass was studied. Biodegradation and photolysis led to 60-100% removal of diclofenac, ibuprofen, paracetamol and metoprolol. Removal of carbamazepine and trimethoprim was incomplete and did not exceed 30% and 60%, respectively. Sorption to algal biomass accounted for less than 20% of the micropollutant removal. Furthermore, the presence of micropollutants did not inhibit C. sorokiniana growth at applied concentrations. Algal treatment systems allow simultaneous removal of micropollutants and recovery of nutrients from source separated wastewater. Nutrient rich algal biomass can be harvested and applied as fertilizer in agriculture, as lower input of micropollutants to soil is achieved when algal biomass is applied as fertilizer instead of urine. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:84 / 92
页数:9
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