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;266:524-531. doi: 10.1016/j.biortech.2018.07.010. Epub 2018 Jul 5.
In this study, the main objective was to investigate the potential effect of tertiary-amine modified bentonite (TAMB) on the nitrogen transformation and the volatile fatty acids (VFAs) degradation during the chicken manure (CM) composting. Six dosages of TAMB (0%, 2%, 4%, 6%, 8% and 10%) were amended into the mixture of CM and wheat straw and then composted for 50 days. The results revealed the TAMB amendment could prolong the thermophilic phase and enhance the organic matter (OM) degradation. With the increasing dosage of TAMB, the ammonia volatilization was reduced by 15.41%-65.35%. Meanwhile, the TAMB addition had a positive effect on VFAs degradation and reducing odor unit (OU) by 17.61%-59.24%. Moreover, CH was reduced by 12.15%-32.78% in TAMB applied treatments compared to control. Finally, combined with all results, it indicated that TAMB amendment could reduce VFAs, CH emission and nitrogen loss to improve the compost quality.
在这项研究中，主要目的是研究叔胺改性膨润土（TAMB）对鸡粪（CM）堆肥过程中氮转化和挥发性脂肪酸（VFAs）降解的潜在影响。将六种剂量的 TAMB（0%、2%、4%、6%、8%和 10%）添加到 CM 和小麦秸秆混合物中，然后进行 50 天堆肥。结果表明，TAMB 改良剂可以延长高温期并增强有机物（OM）降解。随着 TAMB 剂量的增加，氨挥发减少了 15.41%-65.35%。同时，TAMB 的添加对 VFAs 的降解有积极影响，减少了 17.61%-59.24%的气味单位（OU）。此外，与对照相比，TAMB 处理组的 CH 减少了 12.15%-32.78%。最后，综合所有结果表明，TAMB 改良剂可以减少 VFAs、CH 排放和氮损失，从而提高堆肥质量。
