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| 三江源区砷氟超标人畜饮水处理技术研发 | |
| 引用本文： | 李润杰,蒋素英,贾绍凤,吴智仁,张波.三江源区砷氟超标人畜饮水处理技术研发[J].资源科学,2012,34(11):2039-2044. |
| 作者姓名： | 李润杰 蒋素英 贾绍凤 吴智仁 张波 |
| 作者单位： | 1. 青海省水利水电科学研究所,西宁,810001 2. 艾特克控股集团有限公司,无锡,214200 3. 中国科学院地理科学与资源研究所,北京,100101 |
| 基金项目： | 国家科技支撑课题(编号:2009BAC61B04);江苏省中外合作项目(编号:BZ2012065)。 |
| 摘 要： | 人畜饮用水中砷、氟、矿化度的超标,是影响三江源区饮水安全的因素之一。本文针对人畜饮水中砷、氟超标情况,引进F-Catch、As-Catch2高性能粒状吸附材料,进行技术开发,设计出JCD-砷(氟)吸附系统。这种吸附材料对氟、砷酸、亚砷酸具有很高的吸附能力,吸附能力是目前国内外砷、氟吸附剂吸附能力的6倍以上,能吸附大量0.01ppm以下低浓度的氟离子和砷酸、亚砷酸。将JCD-砷(氟)吸附系统与活性碳联用形成砷、氟水处理工艺流程,该工艺流程的处理能力可达到0.5m3/h,按照国家农村用水标准每人每天40L水,能够解决200人的安全饮用水,适合于农村人畜安全饮水的需求。并在项目区进行了试验示范,将含砷原水打入JCD-砷(氟)吸附系统,吸附系统中的功能材料As-Catch2与进水中的砷进行物化反应。再通过JCD-砷(氟)吸附系统中的As-Catch2层下方的30cm高度的多孔质活性炭滤层,利用活性炭具有的高效吸附作用,吸附水中的微污染物质,最终出水进入集水箱中,通过泵打入居民生活用水管道,进入用户家中得以安全使用。设备处理速率快、时间短,无需进行预处理,实现了砷、氟、磷等指标的同时去除,砷去除率达到100%,氟去除率达到85%以上,处理后的水质满足国家生活饮用水卫生标准,且系统不产生污泥,节省了污泥处理费用,设备结构简单、具有灵活的可变性、成本较低,自动化程度高、操作简单、易于管理,为三江源区人畜安全饮水提供了技术保障。 |
| 关 键 词： | 三江源 饮水安全 砷 氟 处理技术 |
Development of a New Arsenic and Fluorine Treatment Method for "Three-River-Source" Area |
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| LI Runjie,JIANG Suying,JIA Shaofeng,WU Zhiren and ZHANG Bo.Development of a New Arsenic and Fluorine Treatment Method for "Three-River-Source" Area[J].Resources Science,2012,34(11):2039-2044. | |
| Authors: | LI Runjie JIANG Suying JIA Shaofeng WU Zhiren and ZHANG Bo |
| Institution: | Institute of Water Resources and Hydropower of Qinghai Province, Xining 810001, China;ATK Holdings Group, Wuxi 214200, China;Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;ATK Holdings Group, Wuxi 214200, China;ATK Holdings Group, Wuxi 214200, China |
| Abstract: | The concentration of Arsenic (As), Fluorine (F) and minerals in drinking water sources surpasses the state safe drinking water standards in Sanjiangyuan area, China. Here, we conducted research and development of a high performance absorbents of particle F-Catch and As-Catch2 and designed a JCD-Arsenic(Fluorine) absorption system. This kind of adsorption material has a very high adsorption capacity, more than six times current domestic and overseas adsorbents of arsenic and fluorine. Our system can absorb large quantities of low concentration fluorine ion and arsenic acid below 0.01 ppm. We combined the JCD-Arsenic(Fluorine) absorption system with adsorbent-activated carbon and developed a process flow to deal with drinking water containing As and F. The system has a handling capacity of 0.5 m3/h. According to national standards of 40 L of water per person per day for rural water usage, the safe drinking water requirements for 200 people can be met, making this system suitable for safe drinking water treatment for rural people and livestock. Our system pumps raw water with arsenic into the JCD-Arsenic(fluorine) adsorption system, then absorbents of As-Catch2 play a role as the functional materials in the absorption system undergo physicochemical reactions with arsenic in the raw water. Water passes through the high porous activated carbon filter layer of about 30cm below the As-Catch2 layer in the JCD-Arsenic adsorption system and the activated carbon with a high adsorption capacity adsorbs slightly polluted substances in water. In the end the treated water flows into the water tank and is pumped into the life water pipeline for domestic users. We conclude that the equipment can handle water treatment quickly which is time saving, and no pre-disposal is needed. With the combination of JCD-Arsenic(Fluorine) absorption system and activated carbon, we can dispose of As, F and phosphorus at the same time with an As disposal efficiency of 100% and F disposal efficiency above 85%. Moreover, no sludge is produced. The system also enjoys advantages such as a simple structure, high equipment flexibility, low investment, high automation and simple operation and management which provide technical support to drinking water security for human beings and livestock across Sanjiangyuan. |
| Keywords: | Sanjiangyuan Water security Arsenic Fluorine Water treatment Water pollution |
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