1、 图书分类号： 密 级：XXX大学毕业设计(论文)生物滴滤池处理生活污水试验研究BIOLOGICAL TRICKLING FILTER SEWAGE TREATMENT PILOT STUDY学生姓名学院名称环境工程学院专业名称给水排水工程指导教师20xx年 06月01日XXX学院学位论文原创性声明本人郑重声明： 所呈交的学位论文，是本人在导师的指导下，独立进行研究工作所取得的成果。除文中已经注明引用或参考的内容外，本论文不含任何其他个人或集体已经发表或撰写过的作品或成果。对本文的研究做出重要贡献的个人和集体，均已在文中以明确方式标注。本人完全意识到本声明的法律结果由本人承担。论文作者签名：
2、日期： 年 月 日XXX学院学位论文版权协议书本人完全了解XXX学院关于收集、保存、使用学位论文的规定，即：本校学生在学习期间所完成的学位论文的知识产权归XXX学院所拥有。XXX学院有权保留并向国家有关部门或机构送交学位论文的纸本复印件和电子文档拷贝，允许论文被查阅和借阅。XXX学院可以公布学位论文的全部或部分内容，可以将本学位论文的全部或部分内容提交至各类数据库进行发布和检索，可以采用影印、缩印或扫描等复制手段保存和汇编本学位论文。论文作者签名： 导师签名： 日期： 年 月 日 日期： 年 月 日I摘要生物滴滤池是最早应用的生物膜处理工艺。因具有能耗和运行成本低、维护管理方便及耐冲击负荷能力
3、强等诸多优点，在城市污水处理技术发展的早期曾得到广泛应用，但由于其自身的结构和运行特点而导致的占地面积大、易堵塞、处理负荷较低、滋生蚊蝇等问题，限制了该工艺的进一步发展。近年来，随着全球能源危机的加剧，人们逐渐开始重视污水处理工艺的能耗指标。由于目前应用较广的活性污泥处理工艺(如A/O、A2/O、氧化沟、SBR等)能耗均较高，因此具有低能耗、低运行成本优势的生物滴滤池再次受到了人们的关注3。国内外很多学者也开展了对传统生物滴滤池的更新改造和推广应用研究4-20。本研究对自行设计的生物滴滤池反应柱处理生活污水的试验研究，获得生物滴滤池运行控制参数，为生物滴滤池工程设计与建设提供最直接的依据。若干
4、年来，生物滴滤池工艺在提高滤池负荷、突破传统的滤料层高度、扩大应用范围等方面得到了发展。（1）气水比对处理效果的影响通过投加营养物质，控制进水有机物浓度相对稳定（在800mg/L左右），使得氨氮进水浓度在30mg/L左右，水力负荷为1.04m3/（m2h）（对应进水流量为4.0L/h）然后改变气水比，进行相关数据的测定。（2）水力负荷对处理效果的影响进水COD浓度在6001500mg/L，氨氮维持在30mg/L左右，在气水比为5:1的条件下，依次改变水力负荷得到对COD和氨氮处理的试验数据。（3）进水有机物浓度对处理效果的影响将气水比稳定在5:1，水力负荷稳定在1.0m3/（m2h），改变进水
5、COD和NH3H的浓度，得到对COD和NH3-H的去除效果。随着有机物浓度的增加，营养物质增多，溶解氧比较充足的条件下，微生物生长旺盛，微反应器内的生物量增加，从而保证了较高的有机物的去除率，即使在较高的进水有机物浓度下COD的去除率仍然可以达到较高的水平。（4）沿滤柱不同高度处COD和NH3-N浓度去除率的变化在试验中对滤柱上的3个取样口和出水口取样，测定水在不同高度处COD和NH3-H浓度的变化情况。本文将着重阐述生物滴滤池处理生活污水的可行性实验研究。关键词 生物滴滤池；生活污水；营养物质；氨氮AbstractBiological trickling filter is the firs
6、t application of biofilm treatment process. With low energy consumption and operating costs, maintenance management convenient and resistance to shock loading ability and many other advantages, has been widely used in the early development of the urban sewage treatment technology, but because of its
7、 structural and operational characteristics, covers an area of large, easy to plug, the processing load is low, the breeding of mosquitoes and other issues, limiting the further development of the process.In recent years, with the intensification of the global energy crisis, people are gradually sta
8、rting to focus on the energy consumption index of the sewage treatment process. Wider application of activated sludge treatment process (such as A / O, A2 / O, oxidation ditch, SBR, etc.) due to higher energy consumption, low energy consumption, low operating cost advantage biological trickling filt
9、er again by attention. Many scholars at home and abroad have carried out the renovation and promotion of traditional biological trickling filter applied research. Reaction column of this study is to design biological trickling filter handle domestic wastewater research, bio-trickling filter run cont
10、rol parameters for biological trickling filter engineering design and construction to provide the most direct basis.For several years, the biological trickling filter process to improve the filter load, breaking the traditional filter layer height, and to expand the range of applications has been de
11、veloped. (1) air-water ratio of treatment effectBy dosing nutrients, control influent concentration of organic matter is relatively stable (between 305 350mg / L), such that the concentration of ammonia water in about 30mg / L, the hydraulic load is 1.04 m3/（m2h） (corresponding to the water flow 4.0
12、L / h) and then change the air-water ratio, the determination of the relevant data. (2) hydraulic loading on the treatment effectInfluent COD concentration of 300 to 400 mg / L, ammonia nitrogen, maintained at about 30mg / L, in the gas-water ratio 5:1, followed by changing the hydraulic load of COD
13、 and ammonia nitrogen processing test data. (3) influent concentration of organic matter treatment effectGas-water ratio stabilized at 5:1, hydraulic loading stable in 1.0 m3/（m2h）, change the influent COD and NH3-H concentration, the removal efficiency of COD and NH3-H. With the increase of the con
14、centration of organic matter, nutrients increase, under conditions of adequate dissolved oxygen, the vigorous growth of microorganisms, an increase in biomass of the micro-reactor, thereby ensuring a high removal rate, even at high water concentration of organic matter removal rate of COD can still
15、reach a higher level. (4) along the filter column at different heights COD and NH3-N concentration removal rate changes.In the test a sample by filtration column four sampling ports and outlet water was measured at different heights COD and NH3-H concentration changes. This article will focus on the biological trickling filters for domestic wastewater treatment experimental study of feasibility.Keywords biological trickling filter domestic sewage nutrients ammoniaIV目 录1 绪论11.1课题背景11.2 废水的处理方11.2.1 物理法
