School of Resources & Environmental Science, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Key Laboratory of Biomass-Resources Chemistry and Environmental Biotechnology, Wuhan University, Wuhan 430079, P.R. China.
School of Resources & Environmental Science, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Key Laboratory of Biomass-Resources Chemistry and Environmental Biotechnology, Wuhan University, Wuhan 430079, P.R. China.
Bioresour Technol. 2022 Oct;362:127820. doi: 10.1016/j.biortech.2022.127820. Epub 2022 Aug 24.
Soil pollution caused by petroleum pollutants from production trade activities in petroleum-related factories contributes serious threat to the environment and human health. Composting is technically-feasible and cost-effective in the biodegradation of heavy oil pollutants. This composting experiment was developed with four rice husk biochar (RHB) concentrations of 0 wt% (CK), 5 wt% (S1), 10 wt% (S2) and 15 wt% (S3) for the degradation of heavy oil. The results showed that RHB amendment could strengthen the degradation performance of heavy oil, and the degradation efficiencies for CK, S1, S2 and S3 were 59.67%, 65.00%, 73.29% and 74.82%, respectively. Microbial community succession process was investigated through high-throughput sequencing technology, and the RHB addition regulated bacterial community succession and further effectively facilitated the biodegradation of heavy oil in composting. This study substantiated that biochar materials-amended aerobic composting would be a promising strategy for the biodegradation of petroleum pollutants.
石油相关工厂在生产贸易活动中产生的石油污染物造成的土壤污染，对环境和人类健康造成严重威胁。堆肥技术在重油污染物的生物降解方面具有技术可行性和成本效益。本堆肥实验采用四种稻壳生物炭（RHB）浓度，分别为 0wt%（CK）、5wt%（S1）、10wt%（S2）和 15wt%（S3），用于重油的降解。结果表明，RHB 改良可以增强重油的降解性能，CK、S1、S2 和 S3 的降解效率分别为 59.67%、65.00%、73.29%和 74.82%。通过高通量测序技术研究了微生物群落演替过程，RHB 的添加调节了细菌群落演替，进一步有效地促进了堆肥中重油的生物降解。本研究证实，生物炭材料改良的好氧堆肥将是一种有前途的石油污染物生物降解策略。
