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Net-Zero-Energy Model for Sustainable Wastewater Treatment

机译：净零能耗模型用于可持续废水处理

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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.
机译：大量外部能量输入会阻止废水处理在环境上可持续。提出了一种基于生物质能回收的净零能耗（NZE）废水处理概念，以避免浪费资源并促进废水处理厂（WWTP）的能量回收。同时，建立了基于能量平衡的理论模型和边界条件，以评价污水处理厂实现零排放的可行性。该模型和条件被用来分析来自中国20个常规污水处理厂的数据。根据理论模型的评估，目前共有六个污水处理厂可以输出多余的能量，八个污水处理厂可以通过调整代谢物质的分配实现100％的能源自给，而六个市政污水处理厂则无法实现零净能耗。与传统的废水处理相比，NZE模型可抵消79.5％的电力和污泥处理成本。 NZE模型为有效利用废水中的有机能源的材料调节的优化提供了理论基础，并促进了NZE概念在污水处理厂中的工程应用。

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  • 来源
    《Environmental Science & Technology》 |2017年第2期|1017-1023|共7页
  • 作者

    Peng Yan; Rong-cong Qin; Jin-song Guo; Qiang Yu; Zhe Li; You-peng Chen; Yu Shen; Fang Fang;

  • 作者单位

    Key Laboratory of Reservoir Aquatic Environment of CAS, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China;

    Key Laboratory of Reservoir Aquatic Environment of CAS, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China;

    Key Laboratory of Reservoir Aquatic Environment of CAS, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China;

    Key Laboratory of Reservoir Aquatic Environment of CAS, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China;

    Key Laboratory of Reservoir Aquatic Environment of CAS, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China;

    Key Laboratory of Reservoir Aquatic Environment of CAS, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China;

    Key Laboratory of Reservoir Aquatic Environment of CAS, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China;

    College of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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