【作者】 赖震宏；

【导师】 龙腾锐；

【作者基本信息】 重庆大学 ， 市政工程， 2004， 硕士

【摘要】 在废水和微污染水处理中，生物膜法是一种高效的处理工艺。填料是该工艺的核心部分，其性能直接影响和制约着水处理工艺的处理效率。需氧生物催化填料是水处理生物膜法和催化微生物生长技术的结合，论文从需氧生物生长促进剂的筛选、填料最优烧制工艺以及填料物理学、生物学特性等方面对需氧生物催化填料进行了试验研究。促进剂筛选试验考查了A、B、C、D、E、F、G、H等八种金属离子对活性污泥活性的影响，除F离子外，其它七种金属离子在各自一定浓度范围内对活性污泥活性均有促进作用，且A离子对微生物活的促进性作用最明显，其最佳促进浓度为5mg/L。在生产性试验条件下，填料以粘土为骨料，粉煤灰为掺和料，煤粉为成孔剂以及A离子的添加成分M等四组分进行正交烧制试验，并以有效孔容、机械强度和松散容重为考查指标，对烧制的填料作正交极差分析，分析结果表明1 #填料各方面物理特性都较优。通过对烧制工艺条件的微观分析，并结合生产性烧制试验过程中所遇到的具体问题，确定了填料烧制的最优工艺。通过挂膜试验，考查了填料生物学特性，研究结果表明：需氧生物催化填料可以有效提高微生物活性和挂膜量，填料中含有的促进剂浓度是决定微生物生长快慢的重要因素，而物理特性中的孔结构分布对填料表面的最大覆着生物量有极大影响；与其它填料相比，1 #填料上微生物生长最快、活性最高、挂膜量最大，生物膜活性与最大挂膜量分别是普通陶粒的1． 2倍和1． 69倍。论文确定1 #填料为一种较理想的水处理生物催化填料，得到需氧催化填料的最佳配比为：促进剂添加量--0． 5％(折算成矿产物质M的质量百分含量为5． 1％)煤粉--2％ 粘土--92． 9％。更多还原

【Abstract】 In the wastewater and slightly polluted water treatment, the attached-growth process is a highly efficient technology. Media is the factor of this method, which performance directly influences and restricts the efficiency of the process. Promoter-media for aerobium is the combination of biofilm process and catalyze technology of organism. The selecting of the activator for aerobium, the optimal sintering process, and the physical and biological properties of promoter-media is studied in this paper.The effects of metallic ions A, B, C, D, E, F, G and H on the activated sludge are studied. Results show that all ions can stimulate the activated sludge activities in some concentration except ion H and the highest stimulatory effect happens when the concentration of ion A is 5 mg/l.Promoter-media for aerobium consists of clay, coal ash powder, braize and mineral M which is the additive substance for ion A. Under full-scale condition, the contrast and orthogonal tests for media production are conducted. Based on the greatest difference analysis of the physical indexes of media, such as mechanical strength, volumeweight and available pore volume, it shows that media is better than others in three physical properties. Through the microcosmic analysis of the sintering process and combined with the questions found in the course of sintering, we get the the optimal sintering process.The results of contrasting experiments for biomass attachment show that the concentration of the activator carried in media is the important factor in the growth of microorganism and that the surface micro-pore distribution influences the maximum of biomass. Compared with others, the microorganism on No. 1 media grows faster and is more active. The activity and the maximum of biomass attached on No. media is respective 1.2 times and 1.69 times of ceramic granular.In conclusion, No. 1 media is ideal for water treatment and it consists of clay (92.9%), braize (2%) and mineral M (5.1%).更多还原