Effects of the functional membrane covering on the gas emissions and bacterial community during aerobic composting

Shuangshuang Ma; Jinpeng Xiong; Xiaoyi Wu; Hongtao Liu; Lujia Han; Guangqun Huang

doi:10.1016/j.biortech.2021.125660

Effects of the functional membrane covering on the gas emissions and bacterial community during aerobic composting

Bioresour Technol. 2021 Nov:340:125660. doi: 10.1016/j.biortech.2021.125660. Epub 2021 Jul 24.

Authors

Shuangshuang Ma¹, Jinpeng Xiong², Xiaoyi Wu³, Hongtao Liu⁴, Lujia Han², Guangqun Huang⁵

Affiliations

¹ Engineering Laboratory for AgroBiomass Recycling & Valorizing, College of Engineering, China Agricultural University, Beijing 100083, China; Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
² Engineering Laboratory for AgroBiomass Recycling & Valorizing, College of Engineering, China Agricultural University, Beijing 100083, China.
³ School of Technology, Beijing Forestry University, Beijing 100083, China.
⁴ Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
⁵ Engineering Laboratory for AgroBiomass Recycling & Valorizing, College of Engineering, China Agricultural University, Beijing 100083, China. Electronic address: huangguangqun@126.com.

PMID: 34330007
DOI: 10.1016/j.biortech.2021.125660

Abstract

The effects of the functional membrane covering on the gas emissions and bacterial community during dairy cow manure aerobic composting were investigated. A lab-scale aerobic composting experiment was conducted with the control group (CK), Gore group (Gore), and ZT group (ZT), namely, without and with two functional membranes. Covering the functional membrane retained heat and improved the seed germination index in Gore and ZT groups. Compared with the CK group, the Gore membrane decreased NH₃ and N₂O emissions by 11.77% and 26.40%, respectively. The ZT membrane decreased N₂O and CO₂ emissions by 68.44% and 1.56%, respectively. The Gore and ZT membranes decreased the global warming potential by 16.97% and 53.41%, respectively. Moreover, Covering the two functional membranes improved the Actinobacteria relative abundance and were conducive to the degradation of volatile solid. Altogether, membrane-covered aerobic composting is an important technology for the resource utilization of organic waste.

Keywords: Aerobic composting; Bacterial community; Gas emission; Membrane-covered.

MeSH terms

Bacteria
Composting*
Manure
Soil

Substances

Manure
Soil