Production of bioplastic through food waste valorization.

The analytic hierarchy process supporting decision making for sustainable development: An overview of applications

Pretreatment of food waste for methane and hydrogen recovery: A review.

The anaerobic digestion process of biogas production from food waste: Prospects and constraints

This article aims to comprehensively review the anaerobic digestion (AD) process utilising the organic fraction of municipal solid waste (OFMSW) substrate. The AD of OFMSW has received considerable attention due to its significant energy and nutrient recovery as well as its greenhouse gas (GHG) mitigation potential. AD is a biological process involving treating and stabilising organic matter in the absence of oxygen accomplished by a consortium of microorganisms and occurs under hydrolysis, acidogenesis, acetogenesis, and methanogenesis phases. The hydrolysis phase is recognised as the primary rate-limiting step. Thus, exploring the ways to speed up the hydrolysis process will maximise biogas production. The key factors affecting the digestion efficiency include feedstock quality, pre-treatment process, design and selection of digestion process and process conditions including pH, temperature, carbon to nitrogen (C: N) ratio, organic loading rate and hydraulic retention time. The review reveals that solid-state anaerobic digestion (SSAD) is best suited for OFMSW due to its high solid concentration (>15%) and better process performance. The continuous digestion with thermophilic temperatures was found to be the best condition for high solid AD process. The plug flow and continuous stir tank reactors were the best performing options to control the biological conditions for the digestate post-treatment. Proper selection of the parameters for the whole process is crucial in ensuring process feasibility and economic sustainability of AD of OFMSW. The study revealed that the AD of OFMSW could play a significant role to mitigate waste and waste-related problems.

A comprehensive review on anaerobic digestion of organic fraction of municipal solid waste

The objective of this paper is to review policies around the world that promote the conversion of food waste to biogas We review policies and operational projects from a diverse set of case study countries including South Korea, China, France, Germany, and the United Kingdom Using a four-step analysis methodology that focuses on each country's (1) food waste background, (2) food-waste-to-biogas policy environment, (3) status quo of food waste-to-biogas projects and (4) future policy/project-level challenges, we provide a comprehensive cross-country review of food waste-to-biogas policy developments We find that, while each surveyed country has unique strengths and weaknesses in their policy structure, Asian and European countries also do face similar bottlenecks in the food waste-to-biogas sector Some specific findings include: (1) highly centralized policies in Asian case countries such as China and South Korea have led to the rapid build-up of a food waste-to-biogas sector; (2) European case countries such as France and the United Kingdom have succeeded in implementing policies that incentivize the production of multiple outputs within treatment facilities; (3) South Korea is a good example of how countries can implement smart waste management systems to decrease the volume of FW generated at the source; (4) South Korea, Germany and France have successfully built many co-digestion projects treating FW together with other waste sources, indicating that project operators in countries have understood the multiple benefits of co-digestion The geographic breadth of the case studies, and the best practices and challenges identified for each country, should prove highly useful for policy-makers in developing countries who are seeking to enhance food waste management via anaerobic treatment methods

A review of global strategies promoting the conversion of food waste to bioenergy via anaerobic digestion

SWOT-AHP-TOWS analysis of private investment behavior in the Chinese biogas sector

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Oliver Gottfried

Papers

A review of global strategies promoting the conversion of food waste to bioenergy via anaerobic digestion

SWOT-AHP-TOWS analysis of private investment behavior in the Chinese biogas sector

China’s Financial System – A Comparative Analysis of Its Characteristics With Banking- or Market-Based Financial Systems

US, Chinese, German VCs Selection Criteria for Investments Into AI Start-Ups