屋面雨水回灌裂隙岩溶水工程风险评价

徐巧艺; 周亚群; 王维平; 黄 强

doi:10.11932/karst20150613

屋面雨水回灌裂隙岩溶水工程风险评价

doi: 10.11932/karst20150613

1.
济南大学资源与环境学院/山东省地下水数值模拟与污染控制工程技术研究中心
2.
淮河流域水资源保护局

基金项目: 国家自然科学基金项目“城市屋面雨水处理后回灌裂隙岩溶含水层试验研究”(40972169）；山东省水利厅、山东省财政厅《水生态文明试点科技支撑计划》“多水源地下水回灌水质风险控制研究”

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出版历程
- 发布日期: 2015-12-25

Risk assessment of managed fracture-karst aquifer recharge with roof rainwater

1.
Shandong Provincial Engineering Technology Research Center for Ground Numerical Simulation and Contamination Control, School of Resource and Environment, University of Jinan
2.
Huaihe River Basin Water Resources Protection Bureau

摘要

摘要: 济南城市雨洪水回灌岩溶含水层是维护自然水循环，增加地下水补给量，维持济南泉群喷涌以及城市防洪的有效途径。但由于裂隙岩溶含水层具有渗透系数大、水流速度快，地下水一旦污染很难短时间恢复等特点，需要对回灌工程开展风险评价。本文以济南大学西校区的屋面雨水深井回灌裂隙岩溶水工程为例，利用澳大利亚MAR指南对工程进行风险评价。主要由初级风险评估、试运行调查、试运行风险评价及风险控制与管理4部分组成。初级风险评估结果显示屋面雨水回灌裂隙岩溶含水层工程的总体难度水平较低，项目可行。试运行调查期间监测的屋面雨水和回灌前后地下水水质可知屋面雨水经初期弃流、沉淀和过滤后，除浊度外基本达到地下水Ⅲ类标准，且处理后达标的雨水可迅速补充地下水。试运行风险评价结果显示屋面雨水中浊度经预处理后仍较高，使其成为该系统的最大风险项和关键控制点，故本项目的风险控制措施为改进预处理设施，降低雨水中的浊度。为保证工程能够高效持续运行，加强后期管理也尤为重要。
- 含水层补给 /
- 屋面雨水 /
- 岩溶地下水 /
- 风险评价
Abstract: Karst aquifer recharge with urban stormwater is an effective way, which can maintain natural water cycle, increase groundwater recharge, insure spring group spewing and urban flood control. But the fracture-karst aquifer has large permeability coefficient, fast water velocity and is hard to recover in short time once it is polluted; so the risk assessment of recharge project needs to be carried out. This paper took fracture-karst aquifer recharge project with roof rainwater in the west campus of University of Jinan as an example. To do so, the Australian Guidelines MAR was applied to the risk assessment, which mainly consisted of entry-level assessment, commissioning investigations, commissioning risk assessment and risk management. The entry-level assessment shows that this project has an overall low difficulty and certain feasibility. The monitoring of roof rainwater quality and groundwater quality before and after injection during commissioning investigations shows that except for the turbidity, roof rainwater treated by initial rainwater removal sedimentation and filtration basically meets the Ⅲ grade of quality standard for groundwater (GB/T 14848-93) and can quickly replenish the groundwater. The result of commissioning assessment indicates that the turbidity after the pre-treatment is still high and becomes the key hazard and critical control point. Therefore, risk management plan should be developed by improving pre-treatment device to decrease the turbidity. In addition, to ensure that the operation of this project can highly efficient and sustainable, the intensified finalperiod management is very important.
- managed aquifer recharge /
- roof rainwater /
- karst groundwater /
- risk assessment

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参考文献(17)

[1]	韩再生. 为可持续利用而管理含水层补给—第四届国际地下水人工补给会议综述［J］. 地质通报, 2003, 22(2): 142-143.
[2]	Asano T, Courtvo A J. Groundwater recharge with reclained municipal waste-water: health and regulatory considerations［J］. Water Research, 2004, 38: 1941-1951.
[3]	Gabella A, Page N, Dillon D,et al. Operational Residual Risk Assessment for the Bolivar ASR recycled water project［R］. CSIRO: Water for a Healthy Country National Research Fiagship, 2010.
[4]	NRM-EPHC-NHMRC. Australian Guidelines for Water Recycling: Managed Aquifer Recharge ［S］.Canberra: Natural Resource Ministerial Management Council, 2009.
[5]	Gerges N Z, Sibenaler X P, Armstrong D. Experience in injecting storm water into aquifers to enhance irrigation water supplies in South Australia［C］.Articial Recharge of GroundwaterⅡ,2010:436-445.
[6]	NRM–EPHC–NHMRC. Australian Guidelines for Water Recycling: Augmentation of Drinking Water Supplies (Phase2) ［S］. Canberra: Environment Protection and Heritage Council and National Health and Medical Research Council, 2008.
[7]	朱平, 王维平, 曹彬，等. 城市屋面雨水收集利用工程设计分析［J］. 地下水, 2011, 33(6): 218-219.
[8]	王维平, 曲士松, 叶新强，等. 用于裂隙岩溶含水层回灌的屋面雨水径流水质特性研究［J］. 水利学报, 2011, 42(4): 477-489.
[9]	何茂强, 王维平. 天然沸石对屋面雨水中氨氮的吸附性能［J］. 济南大学学报, 2012, 26(2): 187-188.
[10]	云桂春, 皮云正, 胡俊. 浅谈再生污水地下回灌的健康危害风险［J］. 给水排水, 2004,(4): 7-10.
[11]	张沛沛. 屋面雨水水质处理与地下水化学动态变化研究［D］. 济南大学：资源与环境学院, 2011.
[12]	王维平, 徐玉, 何茂强，等. 城市屋顶雨水回灌裂隙岩溶含水层的国内外案例介绍:兼对济南市屋顶雨水回灌裂隙岩溶含水层问题的思考［J］, 中国岩溶, 2010, 29(3): 325-330.
[13]	Pavelic P, Dillion P, Barry K,et al.Water quality effects on clogging rates during reclaimed water ASR in a carbonate aquifer ［J］. Journal of Hydrology,2007,34(3):1-16.
[14]	何茂强, 王维平, 朱平. 屋顶雨水回灌裂隙岩溶含水层连通示踪试验［J］. 地下水, 2012, 34(2): 3-5.
[15]	曹秀芹, 车武. 城市屋面雨水收集利用系统方案设计分析［J］. 给水排水, 2002, 28(1): 13-15.
[16]	朱中竹, 王维平, 蒋颖魁，等. 屋面雨水回灌裂隙岩溶水水岩作用实验研究［J］. 中国岩溶, 2012, 31(3): 272-278.
[17]	NRMM-EPHC-AHMC.Australian Guidelines for Water Recycling: Managing Health and Environmental Risks (Phase1) ［S］. Canberra: Environment Protection and Heritage Council and Australian Health Ministers' Conference, 2006.