固定化高分子季铵盐对硫酸盐有机废水厌氧处理颗粒污泥的影响机制

固定化高分子季铵盐（IPQAS）作为一种新的粘泥剥离剂，其在解除颗粒污泥传质阻碍上的研究必将开辟一个崭新的废水生物处理研究和应用领域。根据我们前期研究中的发现，我们提出IPQAS可作为一种颗粒污泥表面包裹物的剥离剂解除颗粒污泥传质屏障以提高颗粒污泥生物活性的工作设想。为进一步证实该设想，我们拟建立硫酸盐厌氧处理中颗粒污泥活性抑制模型，探讨颗粒污泥表面包裹物对颗粒污泥生物活性和传质的影响；制备IPQAS并作用于活性受抑制的颗粒污泥，重点评价IPQAS烷基化链长对颗粒污泥特性的影响，以明确IPQAS与颗粒污泥表面相互作用的机理，阐明IPQAS长期作用下颗粒污泥的微生物群落结构及空间分布响应机制。本研究可为揭示硫酸盐有机废水厌氧处理的抑制机制提供一个新的思路，为废水厌氧处理效率的提高提供一个新的策略，为硫酸盐有机废水厌氧处理工艺在广西的推广应用提供科学依据。

As a kind of slime remover, the study of immobilized polymer quaternary ammonium salt (IPQAS) on removing mass transfer resistance for granular sludge will open up a new field and application of wastewater biotreatment. According to our previous research findings, a work plan is proposed that IPQAS could be used to remove surface secretion and precipitates of granular sludge, and to improve biological activity of granular sludge. To further confirm the idea, the activity inhibition model of anaerobic granule sludge will be established during treating the organic wastewater containing sulphate. The effects of surface secretion and precipitates on biological activity of the granular sludge will be explored. And then, IPQAS will be synthesized and used to touch and interact with inhibited granule sludge. To understand the mechanism of interaction of IPQAS with granular sludge, the impact of alkyl chain length of IPQAS on granular sludge characteristics will be studied. The community structure and distribution response of long-term interaction of IPQAS with granular sludge will be revealed. In this research, a new idea will be provided for revealing inhibition mechanism during anaerobic treating organic wastewater containing sulphate, a new way will be developed for improving the efficiency, and a scientific evidence will be laid for the popularization and application of anaerobic treatment process in Guangxi.