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菌藻共生生物膜污水处理研究进展

2021-07-22廖怀玉孙丽李济斌何頔

土木建筑与环境工程 2021年4期

廖怀玉 孙丽 李济斌 何頔

摘 要:传统生物污水处理技术以活性污泥法及其衍生工艺为主,虽工艺成熟、操作简单,但仍存在运行能耗高、微生物对有毒物质耐受性差等缺陷。菌藻共生生物膜污水处理技术具有低耗高效、抗冲击负荷及环境毒性耐受能力强等优势,日益受到广泛关注。从菌藻共生生物膜形成过程及净水机理出发,介绍菌藻生物膜形成的影响因素以及净水优势,综述菌藻生物膜体系在污水处理中的推广应用,并针对现有研究的不足,对未来菌藻共生生物膜的研究趋势进行展望,以期为菌藻共生生物膜污水处理技术的进一步工程实践提供理论依据。

关键词:菌藻共生;生物膜;净水原理;污水处理

中图分类号:X703.1   文献标志码:A   文章编号:2096-6717(2020)04-0141-13

收稿日期:2021-01-13

基金项目:中国博士后科学基金(2020M672540)

作者简介:廖怀玉(1997- ),女,主要从事菌藻共生污水处理技术研究,E-mail:m18329967274@163.com。

孙丽(通信作者),女,博士,副研究员,E-mail:sunli@gdut.edu.cn。

Received:2021-01-13

Foundation item:Postdoctoral Science Foundation of China (No. 2020M672540)

Author brief:LIAO Huaiyu (1997- ), main research interest: bacterial-algal symbiosis wastewater treating technology, E-mail: m18329967274@163.com.

SUN Li (corresponding author), PhD, associate research fellow, E-mail: sunli@gdut.edu.cn.

Bacterial-algal symbiosis biofilm for wastewater treatment:A review

LIAO Huaiyu, SUN Li, LI Jibin, HE Di

(Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, P.R. China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, P. R. China)

Abstract: Conventional activated sludge process and its derivative process have been regarded as a representative and valuable process for biological water treatment because of their simple operation and mature technology. Nevertheless, several drawbacks hinder their wider applicability, in which the high operating energy costs and poor microbial tolerance for toxic substances. Bacterial-algal symbiosis biofilm technology has been given increasing attentions since their high nutrients removal under the condition of less aeration and the excellent suffertibility of load and toxicity. The motivation of this study, therefore, to discuss the formation process of bacterial-algal biofilm and the mechanism of pollutants removal, to introduce the influence factors for the biofilm formation and advantage of the engineering application. We also summarize the insufficient and analysis the further prospects of the bacteria-algal biofilm to provide technical support for the popularization of bacterial-algal symbiotic biofilm.

Keywords:bacterial-algal symbiosis; biofilm; mechanism of wastewater treatment; sewage treatment

隨着工业化的不断推进,人类生产生活产生的废水日益增多。水体中富含氮磷等营养元素,其中,工业废水中更含有难降解有机物、致病菌等有毒有害物质,此类废水若未经有效治理而直接排放至天然水体,严重威胁生态环境及人类健康[1]。目前,污水处理技术以活性污泥法及其衍生工艺为主,这些传统工艺虽然技术成熟、工艺稳定,但存在运行能耗高、泥水分离效果差、难降解有机物处理处置效果不佳、微生物对环境毒性以及盐度等耐受力差等一系列问题。……

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