College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China.
College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China.
Bioresour Technol. 2018 Oct;266:82-88. doi: 10.1016/j.biortech.2018.06.073. Epub 2018 Jun 26.
To assess the impact of clay as additive on compost maturity and reduction of greenhouse gases (GHGs) as well as ammonia emission during chicken manure composting. Six treatments with different dosages of clay (0%, 2%, 4%, 6%, 8% and 10% clay added by dry weight basis of chicken manure and wheat straw) were designed to conduct an aerobic composting experiment for 50 days. The results showed that the clay amendment could prolong the thermophilic phase and reduced the maturity period of composting. In addition, the GHGs (NO and CH) and ammonia emission of clay added treatments were reduced by 25.3-63.4%, 26.01-50.24% and 8.5-70.5%, respectively. But CO emission was significantly higher in 10% clay amended treatment. Furthermore, the redundancy analysis showed that C/N ratio and total organic matter among all physiochemical properties had significant relationship with GHGs and ammonia emission. Therefore, this study shown that clay addition can promote maturity, reduced GHGs emission and improve the quality of product.
为了评估粘土作为添加剂对鸡粪堆肥过程中成熟度和温室气体（GHGs）减排以及氨气排放的影响。本研究设计了 6 种不同剂量的粘土处理（鸡粪和小麦秸秆干重的 0%、2%、4%、6%、8%和 10%）进行为期 50 天的好氧堆肥实验。结果表明，粘土的添加可以延长高温期，缩短堆肥的成熟周期。此外，添加粘土处理的 GHGs（NO 和 CH）和氨气排放分别减少了 25.3-63.4%、26.01-50.24%和 8.5-70.5%。但在添加 10%的粘土处理中，CO 的排放量显著增加。此外，冗余分析表明，所有理化性质中 C/N 比和总有机物质与 GHGs 和氨气排放有显著关系。因此，本研究表明，粘土的添加可以促进成熟度，减少 GHGs 排放，提高产品质量。
