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作 者:龙焙[1] 程媛媛[1] 朱易春[1] 赵珏[1] 王家辰[1] 张树梅[1] 濮文虹[2] 杨昌柱[2] 程凯[2]
机构地区:[1]江西理工大学建筑与测绘工程学院,江西赣州341000 [2]华中科技大学环境科学与工程学院,湖北武汉430074
出 处:《中国给水排水》2018年第2期31-36,共6页China Water & Wastewater
基 金:江西省教育厅科技项目(GJJ150627);江西省大学生创新创业训练计划项目(XZG-16-08-08)
摘 要:好氧颗粒污泥(AGS)的培养时间一般在30 d以上。显然,较长的启动时间不利于技术的推广及应用。因此,研究经济、高效的AGS的快速培养策略一直是该领域的热门话题。总结已取得的研究成果发现,现有快速培养策略主要包括四种,即进水中添加钙镁等金属离子、投加絮凝剂或惰性载体、接种部分AGS及投加特殊菌种等促进污泥好氧颗粒化。结果表明,以上策略可有效缩短AGS形成所需时间,一般可将污泥好氧颗粒化的时间控制在30 d甚至20 d以内。然而,现有研究存在以下不足,一是缺乏统一的衡量污泥好氧颗粒化成功的标准,二是污泥快速好氧颗粒化的机理缺乏深入研究,三是现有研究成果缺乏实践检验。因此,后续研究应首先统一AGS培养成功的标准,为研究成果的重复及推广奠定基础。其次,通过捕捉污泥颗粒化过程中的原位信息探索快速颗粒化的机理,为实际应用提供理论指导。最后,借鉴厌氧颗粒污泥的销售及使用经验,探索AGS的产品化途径,并对现有快速培养模式进行整合及改进,在实践中检验其可靠性。The cultivation period of aerobic granular sludge (AGS) is usually more than 30 days. Obviously, this long start-up process is not conducive to the popularization and application of AGS tech- nology. Therefore, exploration of rapid cultivation strategies of AGS has always been a hot topic. There are mainly four kinds of rapid cultivation strategies for promoting aerobic granulation according to the exis- ted research results, which were summarized as follows : addition of Ca2 ~ and Mg2 ~ into the influent, us- age of flocculator or inert carrier, inoculation of part of AGS and addition of special strains. The results indicated that the above strategies could effectively shorten the period needed for AGS formation. As a re- sult, the aerobic granulation process could be generally controlled within 30 days or even 20 days. How- ever, there are following deficiencies in the existing research: the lack of unified standard for evaluatingthe success of aerobic granulation, in sufficient investigation of rapid aerobic granulation mechanism, and not enough practice test on the obtained achievement. Therefore, a unified standard for evaluating the a- chievement of aerobic granulation should be firstly developed in future research, which desired to lay the foundation for repetition and promotion of the research results. Then, rapid cultivation mechanism could be explored by capturing in situ information during granulation process, which could provide theoretical guidance for practical applications. Finally, based on the experience of the sale and application of anae- robic granular sludge, productization of AGS could be plication of anaerobic granular sludge. So the existing proved, whose reliability could be tested in practice. explored by using the experience of sales and ap- cultivation strategies could be integrated and im-
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