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Published in: Journal of Material Cycles and Waste Management 2/2023

19-12-2022 | REGIONAL CASE STUDY

Reasonable water replenishment strategies can improve the fermentation efficiency and bacterial community of sheep manure composting on the Qinghai–Tibet Plateau

Authors: Rui Cai, Shuai Zhang, Xinyu Cui, Chuncheng Xu

Published in: Journal of Material Cycles and Waste Management | Issue 2/2023

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Abstract

The dry climate of the Qinghai–Tibet Plateau causes the rapid loss of moisture in composting piles, which affects dynamics of the composting process and the maturity of the compost product. In this study, regular water replenishment was used to solve the problem of rapid water loss during composting on the Qinghai–Tibet Plateau. Multiple combinations of initial water content (60% and 70%) and water replenishment frequency (no water supplementation, water supplementation every 7 days, and supplementation every 3.5 days) were set to determine a reasonable water replenishment strategy to promote compost maturity on the Qinghai–Tibet Plateau. The changes in the bacterial diversity and community structure of the compost were also studied. The results indicated that regular water supplementation during composting can adjust the physicochemical environment of compost, increase bacterial richness and diversity, improve bacterial community structure, and significantly promote compost maturity. A moisture content of 60% can promote fermentation, increase the maximum temperature of the composting pile, and increase the abundance of thermophilic bacteria, such as Firmicutes and Planifilum, better than an initial moisture content of 70%. Among all water replenishment treatments, an initial moisture content of 60% and water supplementation every 3.5 days was the best combination.

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Literature
6.
go back to reference Shi Y (2019) Climate change and its impact on potential evapotranspiration in the Tibetan plateau. Dissertation, Beijing Forestry University. Shi Y (2019) Climate change and its impact on potential evapotranspiration in the Tibetan plateau. Dissertation, Beijing Forestry University.
Metadata
Title
Reasonable water replenishment strategies can improve the fermentation efficiency and bacterial community of sheep manure composting on the Qinghai–Tibet Plateau
Authors
Rui Cai
Shuai Zhang
Xinyu Cui
Chuncheng Xu
Publication date
19-12-2022
Publisher
Springer Japan
Published in
Journal of Material Cycles and Waste Management / Issue 2/2023
Print ISSN: 1438-4957
Electronic ISSN: 1611-8227
DOI
https://doi.org/10.1007/s10163-022-01575-7

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