| 分散式污水处理-滴灌系统对重金属及病原微生物的去除效果 |
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| 引用本文： | 李晓亮,李贵桐,林启美,赵小蓉.分散式污水处理-滴灌系统对重金属及病原微生物的去除效果[J].灌溉排水学报,2010,29(3). |
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| 作者姓名： | 李晓亮 李贵桐 林启美 赵小蓉 |
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| 作者单位： | 中国农业大学,资源与环境学院,北京,100193 |
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| 摘 要： | 大型集中式污水处理工程不适合小城镇污水分散式排放的特点,同时与污水资源循环利用存在一定程度的脱节。针对小城镇污水排放分散、排放量少的特点,建立一套新型分散式污水处理-滴灌一体化系统,直接与农田滴灌设备相连,实现污水处理与农田灌溉利用的直接对接。在系统设计上,建立"去除有害物质、保留营养元素"的污水灌溉新理念。在介绍系统的组成与功能的基础上,对3年试运行期间系统对重金属与病原微生物的去除效果和对作物营养物质的保留效果进行分析,大肠菌群数的去除效率最高达99.7%,对Pb的去除效率最高达99.9%。结果表明该系统运行稳定,基本实现了设计的目标要求。
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| 关 键 词： | 分散式污水处理 重金属 病原菌 作物养分 |
DESAR-Drip Irrigation System and Its Effects on Removing of Heavy Metals and Pathogenic Microorganisms in Sewage |
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| LI Xiao-liang,LI Gui-tong,LIN Qi-mei,ZHAO Xiao-rong.DESAR-Drip Irrigation System and Its Effects on Removing of Heavy Metals and Pathogenic Microorganisms in Sewage[J].Journal of Irrigation and Drainage,2010,29(3). |
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| Authors: | LI Xiao-liang LI Gui-tong LIN Qi-mei ZHAO Xiao-rong |
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| Abstract: | large-scale centralized sewage treatment work is not suitable for the scattered discharge situation of waste water from small town.It also disconnects with the reuse of the wastewater resource.This research is trying to establish a new facility that combine life wastewater treatment with drip-irrigation,which suitable for the scattered discharge and amount-small discharge of waste water in small town and direct reuse of treated waste water by connecting drip irrigation equipment.In the system,the new concept of waste water treatment,removing of harmful substances and pathogenic microorganisms,preserving plant nutrition material,and reducing irrigation with treated waste water,is trying to be tested.In this paper,the sections and basic function of the new system is described in detail,and the removal capacity of the pathogenic microorganisms,heavy metals and plant nutrients is analysised for the data of the first 3 years running of the system.Result shows that the new system is operating well and the designed objectives can be achieved. |
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| Keywords: | DESAR heavy metals pathogenic microorganisms plant nutrients |
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