Energy storage in the breeding industry

How can livestock manure be used to generate energy?

Various techniques could gain energy potential from livestock manure, including direct combustion, biomass densification, and anaerobic digestion (AD) technology. Direct combustion involves high-fiber cow or horse manure directly as heating fuel after being naturally dried. This method is usually used in pasturing areas.

How much does livestock breeding cost in China?

The China Merchants Bank reported that the breeding cost of small-scale farming was 16.6 RMB·kg −1, and that of large-scale farming was 14.3 RMB·kg −1. The costs incurred by Wens, the leading livestock breeding company in China, were only 13.2 RMB·kg −1 in 2016.

Is livestock manure a bioenergy source?

Simultaneously, livestock waste, especially livestock manure (LM), is an excellent source of bioenergy (Xing et al., 2020). Various techniques could gain energy potential from livestock manure, including direct combustion, biomass densification, and anaerobic digestion (AD) technology.

How much COD is emitted from livestock breeding in China?

The latest national survey on pollution sources in China in 2017 showed that chemical oxygen demand (COD) emissions reached 21.44 million tons, 46.67% from livestock breeding. Compared with 2007, the proportion of COD discharge from livestock breeding was 41.87%.

Can livestock manure reduce biogas energy potential loss?

The energy recovery potential from livestock manure in China was estimated. Worldwide anaerobic digestion applications for livestock waste were summarized. The bottlenecks of biogas project promotion in the whole chain were assessed. Large-scale farming is the key for reducing biogas energy potential loss.

Why do cities breed animals?

As urban economies have developed, livestock breeding in city suburbs has evolved to provide the city with fresh milk, eggs, meat, and other animal products. This type of animal husbandry was found near cities such as Beijing, Tianjin, and Shanghai.