KMS Chongqing Institute of Green and Intelligent Technology, CAS
| Net-Zero-Energy Model for Sustainable Wastewater Treatment | |
Yan, Peng1 ; Qin, Rong-cong1; Guo, Jin-song1 ; Yu, Qiang1; Li, Zhe1; Chen, You-peng1; Shen, Yu1; Fang, Fang2
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| 2017-01-17 | |
| 摘要 | A large external energy input prevents wastewater treatment from being environmentally sustainable. A net-zero-energy (NZE) wastewater treatment concept based on biomass energy recycling was proposed to avoid wasting resources and to promote energy recycling in wastewater treatment plants (WWTPs). Simultaneously, a theoretical model and boundary condition based on energy balance were established to evaluate the feasibility of achieving NZE in WWTPs; the model and condition were employed to analyze data from 20 conventional WWTPs in China. A total of six WWTPs can currently export excess energy, eight WWTPs can achieve 100% energy self-sufficiency by adjusting the metabolic material allocation, and six municipal WWTPs cannot achieve net-zero energy consumption based on the evaluation of the theoretical model. The NZE model offset 79.5% of the electricity and sludge disposal cost compared with conventional wastewater treatment. The NZE model provides a theoretical basis for the optimization of material regulation for the effective utilization of organic energy from wastewater and promotes engineering applications of the NZE concept in WWTPs. |
| DOI | 10.1021/acs.est.6b04735 |
| 发表期刊 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
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| ISSN | 0013-936X |
| 卷号 | 51期号:2页码:1017-1023 |
| 通讯作者 | Guo, JS (reprint author), Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm CAS, Chongqing 400714, Peoples R China. |
| 收录类别 | SCI |
| WOS记录号 | WOS:000392457700033 |
| 语种 | 英语 |
