A sustainable biogas model in China: The case study of Beijing Deqingyuan biogas project

Abstract

According to the Paris Agreement, China has the ambition to develop non-fossil energy which will account for 20% of the total energy consumption in 2030. China has abundant biomass potential implying the bioenergy should be an important option of non-fossil energy. In this analysis, we present an representative biogas project (the Deqingyuan project, DQY) in Beijing and conduct a cost-benefit analysis for the whole value chain. DQY is the first large-scale biogas project in China that utilizes 100% chicken manure as a feedstock and integrates biogas production with ecological agriculture using advanced technologies. DQY uses 80,000 t of chicken manure and 100,000 t of sewage each year to produce biogas, which generates 14 million KWh of power annually, and obtains an additional revenue of RMB 8 million yuan each year through the Clean Development Mechanism (CDM). Operating as an example of a sustainable bioenergy model, DQY accomplishes the full use of a recycled resource while showing consideration for animal welfare during the entire production, which is a fundamental component of the new rural energy strategy. The circular economy model of DQY plays a prominent role in reducing greenhouse gas emissions, mitigating pollution, and increasing employment, among other benefits. This paper aims to conduct a comprehensive analysis of the typical demonstration model (DQY) in utilization of agricultural waste in China, and further proposes a general development model of Chinese biogas in the future

Methanogenic community during the anaerobic digestion of different substrates and organic loading rates

“…The production of livestock manure was around 3.49 billion tons in 2016 (National Bureau of Statistics of the People's Republic of China, ; Zhang, Bo, & Geng, ). It was reported that the total biogas production from these agricultural wastes was 2 billion m 3 , implying that less than 5% of the waste was utilized for biogas production in 2014 (Chen, Cong, Shu, & Mi, ; Zhang, Yang, & Xie, ). Worldwide, large amounts of livestock and poultry manure have become concentrated in certain areas over the last few decades, as agricultural land is not sufficient for their recycling via the soil‐plant system.…”

Logistics as an Essential Area for the Development of the Solid Waste Management in Colombia

“…By transforming solid waste and biomass in secondary forms of energy such as heat, electricity, and fuel, Latin America and the Caribbean could produce a new source of the economy towards the development, in addition to have control over the generation and final disposition of these wastes. This positive economy transformation has been conducted already in countries such as Jordan (Al-Hamamre et al, 2017), China (Chen;Rong-Gang;Bangrong;Mi, 2017), Brazil (Freitas et al, 2019), Argentina (Francisca;Montoro;Glatstein, 2017), and now in Colombia (Andrade;Tibaquirá, 2018).…”

A Review on the Research of Promoting Biogas Fermentation Efficiency by Mixing

“…With the rapid development of biogas industry, especially the vigorous development of large-scale biogas projects, many countries have replaced traditional household biogas digesters with large-scale biogas projects [9][10][11], which puts forward higher requirements for the design of agitation process [12][13]. The large-scale biogas plants such as Deqingyuan Ecological Farm were constructed, with the annual treatment capacity of 80,000 t of chicken manure and 100,000 t of sewage [14]. Without a good agitation scheme, the slurry can easily form silt and the whole system will stop running.…”