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| 1 | 头孢氨苄降解菌的分离鉴定及其降解特性显示文摘从生活污水处理厂污泥中筛选出一株能高效降解头孢氨苄的菌株CQ2,鉴定为苍白杆菌(Ochrobactrum sp.)。考察了温度、pH、混合强度和接种量等对CQ2菌的生长和头孢氨苄降解率的影响,确定最佳培养条件为温度30℃、pH 7.0、转速150 r/min、接种量5%(体积分数)。在该条件下培养CQ2菌28 h,对水中初始质量浓度为10 mg/L的头孢氨苄的降解率可达100%;CQ2菌对其他抗生素的降解效果为:培氟沙星<磺胺嘧啶<土霉素<阿莫西林。基于液相色谱-串联质谱仪(LC-MS/MS)测定的降解中间产物,提出了CQ2菌生物降解头孢氨苄的初步路径。 | 杨涛 孙贤波 刘勇弟 蔡正清 | 2021 | 华东理工大学学报(自然科学版)2021,47,1: | 1 |
| 2 | 制药废水中抗生素抗性的污染特征、检测手段和控制方法显示文摘制药行业废水中含有大量的抗生素、抗生素抗性细菌(ARBs)及抗性基因(ARGs)等新污染物,现今的生物处理工艺尚不能有效地对其进行去除.最终以上新污染物随出水进入各类水体或渗入土壤,造成环境污染,影响人类健康.因此,探明制药废水中抗生素、ARBs和ARGs的污染特征,知晓检测和控制废水中抗生素抗性污染的方法,对于削减环境中的抗生素和ARGs,评估抗生素抗性的生态风险至关重要.针对制药废水处理厂(PWWTPs)环境中的抗生素抗性污染问题,讨论了制药废水中的抗生素、ARBs和ARGs的污染现状;概述了制药废水环境中抗生素抗性的不同评估方法;最后对PWWTPs中常用去除抗生素及ARGs的废水处理技术进行了概述,以期为环境中抗生素及抗性基因的生态风险评价及科学防治提供理论依据. | 彭安萍 高虎 张新波 | 2024 | 环境科学2024,45,2: | 0 |
| 3 | 污水处理厂生物气溶胶抗生素抗性污染特征、来源及潜在风险显示文摘污水处理厂是抗生素抗性基因(antibiotic resistance genes,ARGs)和抗生素抗性细菌(antibiotic resistant bacteria,ARB)重要的源和汇,生物气溶胶是ARGs和ARB自污水处理厂向周边环境释放的关键载体。目前缺乏对污水处理厂生物气溶胶抗生素抗性污染特征、来源及潜在风险的系统性总结。本文从采样方法、检测方法、逸散特征、来源、潜在危害和风险评估等方面对污水处理厂抗生素抗性污染研究现状进行综述。惯性采样法和过滤法是常用的污水处理厂抗生素抗性生物气溶胶主要采集方法,而宏基因组测序、组装和分箱为其ARGs组成、可移动性和宿主提供了有效的检测方法,抗多药类、抗杆菌肽类、抗氨基糖苷类、抗四环素类、抗β-内酰胺类、抗磺胺类、抗大环内酯类和抗糖肽类等抗性基因在污水处理厂PM10、PM_(2.5)和PM_(1.0)颗粒物中广泛检出。格栅间、生化反应池和污泥处理单元是污水处理厂PM10、PM_(2.5)和PM_(1.0)负载ARGs和ARB的主要释放单元。污水处理厂不同粒径生物气溶胶中致病性ARB的存在增加了抗生素治疗的难度,而污水和污泥对ARGs和ARB的释放起到了重要的源的贡献。本文在研究内容、研究技术和控制策略等方面也提出了相关展望,以期为污水厂生物气溶胶抗生素抗性污染的监测和防护提供参考和借鉴。 | 姜波 王旭一 黄青 隋心 杨唐 惠晓亮 张展鹏 高晓东 | 2024 | 微生物学通报2024,51,1: | 0 |
| 4 | Composition,dispersion,and health risks of bioaerosols in wastewater treatment plants:A review显示文摘Bioaerosols are defined as airbome particles(0.05-100 um in size)of biological origin.They are considered potentially harmful to human health as they can contain pathogens such as bacteria,fungi,and viruses.This review summarizes the most recent research on the health risks of bioaerosols emitted from wastewater treatment plants(WWTPs)in order to improve the control of such bioaerosols.The concentration and size distribution of WWTP bioaerosols;their major emission sources,composition,and health risks;and considerations for future research are discussed.The major themes and findings in the literature are as follows:the major emission sources of WWTP bioaerosols include screen rooms,sludge-dewatering rooms,and acration tanks;the bioaerosol concentrations in screen and sludge-dewatering rooms are higher than those outdoors.WWTP bioacrosols contain a variety of potentially pathogenic bacteria,fungi,antibiotic resistance genes,viruses,endotoxins,and toxic metal(loid)s.These potentially,pathogenic substances spread with the bioaerosols,thereby posing health risks to workers and residents in and around the WWTP.Inhalation has been identified as the main exposure route,and children are at a higher risk of this than adults.Future studies should identify emerging contaminants,establish health risk assessments,and develop prevention and control systems. | Yunping Han Lin Li Ying Wang Jiawei Ma Pengyu Li Chao Han Junxin Liu | 2021 | Frontiers of Environmental Science & Engineering2021,15,3: | 0 |