JIANG Shan,FU Kun-ming,SU Xue-ying,et al.Application Prospects of Adsorption-Biodegradation (AB) Process Based on Mainstream ANAMMOX[J].China Water & Wastewater,2018,34(22):25-30.
基于主流厌氧氨氧化的AB工艺应用前景
- Title:
- Application Prospects of Adsorption-Biodegradation (AB) Process Based on Mainstream ANAMMOX
- 文章编号:
- 1000-4602(2018)22-0025-06
- 分类号:
- TU992.3
- 文献标志码:
- B
- 摘要:
- 基于未来可能的主流厌氧氨氧化应用,总结与分析了AB工艺的A段中微生物的研究现状、净化机理以及A段中存在的胞外聚合物(EPS)的作用与影响。A段对污水中碳源的回收,存在着吸附、絮凝、沉降以及生物作用等多种过程,其中,增加进水SS、升高EPS含量、提高pH值、加入二价或三价阳离子、降低多糖含量等方法均可提高污泥的絮凝、沉降、吸附性能。在强化A段捕捉有机物的研究中发现,投加化学絮凝剂是较为可行的强化方法,可以将BOD5去除率提高到60%～70%。想要进一步降低BOD5/N比值还需要在B段进一步降低有机物的值,可在新提出的两种工艺的短程硝化阶段或是有机物氧化阶段通过调节DO值,氧化分解有机物使得ANAMMOX菌具有良好活性,以实现主流ANAMMOX工艺。
- Abstract:
- Based on the possible application of anaerobic ammonia oxidation in the main treatment process in future, this paper summarized and analyzed the research status of microorganisms and purification mechanism in A-stage of AB process, as well as the effect of the extracellular polymer substances(EPS)in the A-stage. There were many processes such as adsorption, flocculation, sedimentation and biodegradation in the A-stage. Among them, it could be found that increasing influent SS, the EPS content and pH, adding two or trivalent cationic flocculants, and reducing the content of polysaccharidecould improve the adsorption, flocculation sedimentation performance of sludge. In the study on strengthening the performance to capture organic matter in A-stage, it was found that the addition of chemical flocculants was a feasible method to increase the removal rate of BOD5 to 60%-70%. To further reduce the BOD5/N ratio, it was necessary to further reduce the value of organic matter in B-stage, which could be realized by adjusting the DO value in the short-term nitrification stage of the two new processes or in the oxidative stage of organic matter. The oxidative decomposition organic compounds makes ANAMMOX bacteria had good activity to achieve the mainstream ANAMMOX process.
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备注/Memo
基金项目: 北京市教育委员会科技发展计划项目(SQKM201710016006); 北京建筑大学市属高校基本科研业务费专项资金资助项目(X18214)
通信作者: 付昆明 E-mail:fukunming@163.com
作者简介:姜姗(1993- ), 女, 北京人, 硕士研究生, 研究方向为水处理技术。
E-mail:klarolines@163.com
收稿日期:2018-04-28