河道底泥制成陶粒填料处理微污染原水毕业论文正文.doc

河道底泥制成陶粒填料处理微污染原水浙江工业大学 市政工程系 给水排水工程 2010 届 龚灵潇指导教师： 李军 韦甦摘要：摘要：以河道底泥制成陶粒为填料，采用序批式生物膜法对真实河道微污染原 水进行处理试验结果表明，系统启动速度快，1 周后 CODMn和 NH3-N 的去除 率达 32.1%和 91.3%；运行稳定后，在进水 CODMn为 3.28-5.68mg/L，NH3-N 为 0.85-6.20mg/L 时，出水 CODMn为 2.40-4.00mg/L，NH3-N 为 0.11-0.80mg/L， 均达到《地表水环境质量标准（GB3838-2002） 》中所规定的Ⅱ类水质SBBR 工艺单室交替进水、曝气的运行方式，陶粒的过滤、截留作用，有利于曝气量 和浊度的降低表面相对粗糙、比表面积大、成本低的这种陶粒填料被证明处 理微污染原水具有可行性 关键词：关键词：微污染原水；陶粒；SBBR； 氨氮；生物处理The ceramsite filling made from river sediment used to treat the micro-polluted raw waterAbstract Sequencing batch biofilm reactor packed with ceramsite which be made from river sediment is used to treat real micro-polluted river water. Test results indicate that system start rapidly, permanganate index and ammonia nitrogen removal rate of 32.1% and 91.3% a week later; after operating steady, the influent permanganate index of 3.28-5.68mg/L, ammonia nitrogen of 0.85 to 6.20mg/L, the effluent permanganate index of 2.40 to 4.00mg/L, ammonia nitrogen of 0.11 to 0.80mg/L, both of them reach the quality of standard class Ⅱ of surface water environmental quality standard (GB3838-2002). Owning to the operation mode which enter water and aerate alternately and fill with ceramsite to enhance the function of filtration and interception, aeration volume and turbidity are both reduced. This ceramsite with characteristics of relatively rough surface, large specific surface area and low cost is feasible to treat micro-polluted raw water.Keywords micro-polluted raw water; ceramsite; SBBR; ammonia nitrogen. biological treatment目目 录录1 绪论绪论.............................................................................................................................11.1 微污染原水的定义...........................................................................................11.2 我国水体污染的现状.......................................................................................11.3 我国水体污染的来源.......................................................................................11.3.1 氨氮污染的来源.....................................................................................21.3.2 有机物污染的来源.................................................................................31.4 水体污染的危害...............................................................................................31.5 微污染原水处理的必要性...............................................................................41.6 原水污染物的去除方式...................................................................................51.6.1 氨氮的去除方式.....................................................................................51.6.2 微污染原水去除有机物的方式.............................................................61.7 微污染原水处理的研究现状...........................................................................71.8 微污染原水常见生物预处理工艺...................................................................81.8.1 生物接触氧化.........................................................................................81.8.2 曝气生物滤池.........................................................................................91.8.3 生物流化床...........................................................................................111.9 本试验研究的主要内容及方法.....................................................................112.填料的选择填料的选择...............................................................................................................122.1 填料选择原则.................................................................................................132.2 填料的分类.....................................................................................................132.2.1 污水生物处理领域...............................................................................132.2.2 微污染原水处理领域...........................................................................132.3 陶粒与 SBBR..................................................................................................142.3.1SBBR 工艺的填料类型.........................................................................142.3.2SBBR 工艺与陶粒填料的结合.............................................................152.4 传统陶粒填料概述.........................................................................................152.4.1 特性及分类...........................................................................................152.4.2 常见陶粒...............................................................................................152.4.3 处理效果...............................................................................................162.4.4 存在问题...............................................................................................172.5 试验陶粒.........................................................................................................172.5.1 改性目的...............................................................................................172.5.2 加工工艺...............................................................................................172.5.3 物理特性..............................................................。