加强型复合生物净化床污水处理系统的设计

发布时间：2018-02-21 09:13

本文关键词： 人工湿地复合生物净化床水解酸化接触氧化　出处：《北京工业大学》2015年硕士论文　论文类型：学位论文

【摘要】：针对农村生活污水来源分散、水质水量不均匀、水力负荷高、氨氮浓度大、湿地易堵塞等问题,依托北京某农村污水处理实际工程项目,设计建设了一套新型高效的生态污水处理系统。在充分调研国内外农村污水处理技术研究进展的基础上,对常规污水处理技术的优缺点进行了分析和比选、确定了本课题的工艺采用自动格栅+调节池+水解酸化+接触氧化+斜板沉淀池+中间水池+复合生物净化床,遵照相关设计规范进行了系统的工程设计计算、工程图纸绘制、工程建设、处理系统调试、出水水质检测和数据分析。系统出水水质可以满足北京2014年1月1日开始实施的《水污染物综合排放标准》(DB11/307-2013)的B类标准。系统总装机容量为6.97k W,运行容量为3.97k W,总电动率为58.72k W,每天的电费为0.15元/吨,人工维护费元为0.16/吨,垃圾和污泥处置为费0.08元/吨,运行费用为0.39元/吨。系统总投资为77.5万元,其中土建投资为39.00万元,设备投资为26.50万元,设备安装及其他费用为12.00万元。这套系统每年可以处理7.30万吨生活污水,可减少排放CODcr约22.63吨,BOD约13.87吨,SS约13.87吨,NH3_N约1.83吨,TN约1.83吨,TP约0.19吨,经处理后达标的水可直接作为景观湖补充水源,每年可节约水资源7.30万吨,折合人民币36.5万元。本研究成果主要应用于农村分散型生活污水的生态处理并可实现污水的资源再利用。构建的低耗高效分散型污水处理系统为解决中国农村分散式点源污染提供了一种绿色节能可行的技术方案,对于我国农村环境治理和社会经济可持续发展具有重要实际指导意义。
[Abstract]:For the decentralized rural sewage source, water quality is not uniform, high hydraulic loading, ammonia concentration, the problem of wetland blockage, relying on Beijing rural sewage treatment engineering project, design and construction of a new type of high efficient ecological sewage treatment system. In the full research of rural sewage treatment based on technology progress and the advantages and disadvantages of the conventional sewage treatment technology is analyzed and compared, to determine the process of this project adopts automatic grid + regulation pool + hydrolysis acidification + contact oxidation + board Draintrap + middle + composite biological fluidized bed net pool, in accordance with the relevant design specifications for the calculation of system engineering design, engineering drawing engineering, construction, system debugging, testing and analysis of water quality data. The system can meet the water quality > water pollutants discharge standard of Beijing began in January 1, 2014 (DB11/ < 307-2013) the B standard system. The total installed capacity of 6.97k W, the operation capacity of 3.97k W, the total electric rate of 58.72k W, the daily electricity is 0.15 yuan / ton, artificial maintenance costs 0.16/ $tons of garbage and sludge disposal fee is 0.08 yuan / ton, the operation cost is 0.39 yuan / ton. The total investment is 775 thousand yuan, including construction investment of 390 thousand yuan, 265 thousand yuan investment in equipment, equipment installation and other expenses for 120 thousand yuan each year. This system can handle 73 thousand tons of sewage, can reduce the CODcr emissions of about 22.63 tons, about 13.87 tons of BOD SS NH3_N, about 13.87 tons, about 1.83 tons. TN TP is about 1.83 tons, about 0.19 tons, the treated water can be directly used as the standard of landscape lake water, annual savings of 73 thousand tons of water, equivalent to 365 thousand yuan. The ecological treatment results of this study are mainly used in rural decentralized domestic sewage and sewage water resources can be realized. The The constructed low consumption and high efficiency decentralized sewage treatment system provides a green, energy saving and feasible technical scheme for solving the decentralized rural point source pollution in China. It has important practical guiding significance for China's rural environmental governance and social and economic sustainable development.

【学位授予单位】：北京工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X703

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