厚壁菌
放线菌门
修正案
生物炭
拟杆菌
蛋白质细菌
鸡粪
肥料
微生物种群生物学
化学
原材料
生态演替
农学
生物
制浆造纸工业
细菌
生态学
有机化学
法学
工程类
遗传学
16S核糖体RNA
热解
政治学
作者
Yuwen Zhou,Sanjeev Kumar Awasthi,Tao Liu,Shivpal Verma,Zengqiang Zhang,Ashok Pandey,Sunita Varjani,Ronghua Li,Mohammad J. Taherzadeh,Mukesh Kumar Awasthi
标识
DOI:10.1016/j.jhazmat.2021.126562
摘要
The purpose of this study was to investigate the heavy metal resistant bacteria (HMRB) community succession and bacterial activity in poultry manure (PM) composting. Five different concentration of chicken manure biochar (CMB) at 0%, 2%, 4%, 6%, and 10% on a dry weight basis was applied with initial feedstock (poultry manure + wheat straw) and indicated with T1, T2, T3, T4, and T5. In addition, high-throughput sequencing, principal coordinate analysis, and correlation analysis were used to analyze the evolution of HMRB communities during composting. The study indicated that crucial phyla were Proteobacteria, Actinobacteria, Bacteroidetes, and Firmicutes. The bacterial diversity in the CMB amendment treatment was higher than in the control treatment, and T4 treatment has the highest among all CMB applied treatments. Moreover, results from CCA indicated that T4 and T5 treatments quickly enters the high-temperature period which is maintained for 5 days, and is significantly positively correlated with Proteobacteria, and Actinobacteria. These findings offer insight into potential strategies to understand the succession of HMRBs during PM reuse. Overall, the above results show the addition of 6% biochar (T4) was potentially beneficial to enrich the abundance of bacterial community to improve composting environment quality and composting efficiency. In addition, effective to immobilized the heavy metals and HMRB in the end product.
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