自然沉降藻-菌共生絮凝体研究进展

发布时间：2018-01-18 13:05

本文关键词：自然沉降藻-菌共生絮凝体研究进展　出处：《中国给水排水》2016年18期 　论文类型：期刊论文

【摘要】：藻-菌共生系统可实现污水二、三级处理低成本运行,特别是还可将CO2捕捉、固定于藻类后用于可再生生物能源生产,是应用前景广阔的可持续污水处理技术。然而,占地面积大、处理能力低、处理效果不稳定和藻细胞采收成本高等限制了其大规模工程推广应用。究其根本原因主要是藻-水分离困难,因此筛选可自然沉降微藻是解决问题的关键。在此方面,可自然沉降藻-菌共生絮凝体研究受到国内外广泛关注。从藻-菌共生絮凝体富集培养方法出发,系统总结藻-菌共生絮凝体污水处理效果;揭示其对藻-菌系统处理能力的提升作用;讨论藻-菌相互作用关键新问题;探讨藻-菌共生絮凝体生物能源生产潜力;提出后续研发重点方向。
[Abstract]:The algae-bacteria symbiosis system can realize the low cost operation of the second and third stages of sewage treatment, especially the CO2 can be captured, fixed in algae and used in renewable bioenergy production. It is a sustainable sewage treatment technology with broad application prospects. However, it occupies a large area and has a low treatment capacity. The instability of treatment effect and the high cost of collecting algal cells restrict the application of algal cells in large-scale engineering. The main reason is that the separation of algae and water is difficult. Therefore, the key to solve the problem is to screen the microalgae that can precipitate naturally. In this respect, the study on the symbiotic flocculation of alga and bacteria has received extensive attention both at home and abroad. Starting from the enrichment culture method of algal-bacteria symbiotic flocculant. The effect of algal-bacteria symbiotic flocculation wastewater treatment was systematically summarized. To reveal its ability to enhance the treatment of algae-bacteria system; The key new problems of algae-bacteria interaction are discussed. The potential of bioenergy production of algal-bacteria symbiotic flocculant was discussed. Put forward the following research and development key direction.
【作者单位】：北京建筑大学城市雨水系统与水环境省部共建教育部重点实验室;
【基金】：国家自然科学基金资助项目(51308024)
【分类号】：X703
【正文快照】： 自Oswald等人在20世纪50年代提出利用微藻处理污水的理念以来,以高效藻类塘为代表的藻-菌共生系统已成功应用于各类污水处理[1~3]。与传统活性污泥法相比,藻-菌共生系统具有一些独特优势:1微藻通过光合作用为好氧微生物提供氧气[4];2通过藻细胞合成、硝化/反硝化等过程能有效

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