Journal
BIOCHEMICAL ENGINEERING JOURNAL
Volume 130, Issue -, Pages 76-82Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.bej.2017.11.010
Keywords
Co-bioevaporation; Concentrated landfill leachate; Food waste
Funding
- National Natural Science Foundation of China [51608241]
- Yunnan Applied Basic Research Projects [2015FD010]
- Research Foundation for High Level Talents in Kunming University of Science and Technology [10978191]
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In this study, concentrated landfill leachate (CLL) from two-stage DTRO (Disk-Tube Reverse Osmosis) process was treated by co-bioevaporation process with addition of food waste (FW) as the supplementary carbon source. A series of experiments were conducted to explore the feasibility and critical factors of the co-bioevaporation treatment of CLL and FW. The results indicated that the simultaneous removal of water and organic matters contained in CLL and FW mixture was effectively achieved in the co-bioevaporation process, and when the CLL and FW mixing ratio was 1:1.10 (m(CLL):m(FW)), 85.67% of the added water can be evaporated by complete consumption of the organics. Initial moisture content (MC) of 33.9%, dosage of 90%, and air-flow rate (AFR) of 0.035 m(3) kg(-1) (TS) h(-1) were found to be the optimal operating conditions. Water evaporation of 96.7% and volatile solids (VS) consumption of 96.5% were obtained under those optimal conditions during five cycles of co-bioevaporation process. (C) 2017 Elsevier B.V. All rights reserved.
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