De Clercq Djavan, Wen Zongguo, Fan Fei
State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), School of Environment, Tsinghua University, Beijing, 100084, China; Key Laboratory for Solid Waste Management and Environment Safety (Tsinghua University), Ministry of Education of China, Tsinghua University, Beijing, 100084, China.
State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), School of Environment, Tsinghua University, Beijing, 100084, China; Key Laboratory for Solid Waste Management and Environment Safety (Tsinghua University), Ministry of Education of China, Tsinghua University, Beijing, 100084, China.
J Environ Manage. 2017 Mar 15;189:115-124. doi: 10.1016/j.jenvman.2016.12.030. Epub 2016 Dec 22.
The objective of this research was to conduct a performance evaluation of three food waste/biowaste-to-biogas pilot projects across 7 scenarios in China based on multi-criteria decision analysis (MCDA) methodology. The projects ranked included a food waste-biogas project in Beijing, a food waste-biogas project in Suzhou and a co-digestion project producing biomethane in Hainan. The projects were ranked from best to worst based on technical, economic and environmental criteria under the MCDA framework. The results demonstrated that some projects are encountering operational problems. Based on these findings, six national policy recommendations were provided: (1) shift away from capital investment subsidies to performance-based subsidies; (2) re-design feed in tariffs; (3) promote bio-methane and project clustering; (4) improve collection efficiency by incentivizing FW producers to direct waste to biogas projects; (5) incentivize biogas projects to produce multiple outputs; (6) incentivize food waste-based projects to co-digest food waste with other substrates for higher gas output.
本研究的目的是基于多准则决策分析（MCDA）方法，对中国7种情景下的3个食物垃圾/生物垃圾制沼气试点项目进行绩效评估。所评估的项目包括北京的一个食物垃圾制沼气项目、苏州的一个食物垃圾制沼气项目以及海南的一个生产生物甲烷的共消化项目。在MCDA框架下，根据技术、经济和环境标准，对这些项目从最佳到最差进行了排名。结果表明，一些项目正面临运营问题。基于这些发现，提出了六项国家政策建议：（1）从资本投资补贴转向基于绩效的补贴；（2）重新设计上网电价；（3）促进生物甲烷和项目集群发展；（4）通过激励食物垃圾生产者将垃圾直接送往沼气项目来提高收集效率；（5）激励沼气项目生产多种产出；（6）激励以食物垃圾为基础的项目将食物垃圾与其他底物进行共消化以提高气体产量。
