首页|Efficient removal of atrazine in wastewater by washed peanut shells biochar: Adsorption behavior and biodegradation
Efficient removal of atrazine in wastewater by washed peanut shells biochar: Adsorption behavior and biodegradation
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
Elsevier
Peanut shell powder was washed with water and then calcined to produce biochar, which acted as an adsorbent and biofilm supporter for the removal of atrazine (ATR). Biochar sample prepared by washing 6 h (named BC-W) achieved the highest biodegradation amount (Q_m, 12.48 mg/g). The adsorption process of ATR on BC-W involved hydrogen bonding and π-π interactions. We found that the removal rate of ATR by biodegradation was 6.34-6.75 times that of adsorption, with an ATR concentration of 30 mg/L under half aeration. The results of high-throughput sequencing showed that there were two dominant bacterial phyla in the BC-W samples after biofilm culture: Firmitcutes (51.89 %) and Proteobacteria (47.79 %), among which Bacillus, Clostridium (sensu stricto), and Pseudomonas, played a major role in the biodegradation of ATR. These findings showed that biochar could be employed as a low-cost adsorbent for the removal of pesticides from wastewater, also a biofilm supporter for enhanced biodegradation of organic pollutants.
College of Environment and Resources, Guangxi Normal University, 1 Yanzhong Road, Guilin 541006, PR China
College of Environment and Resources, Guangxi Normal University, 1 Yanzhong Road, Guilin 541006, PR China||Guangxi Key Laboratory of Environmental Processes and Remediation in Ecologically Fragile Regions, Guangxi Normal University, 1 Yanzhong Road, Guilin 541006, PR China||Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, 1 Yanzhong Road, Guilin 541006, PR China
NETL
NSTL
Elsevier
