ARTIFICIAL RECHARGE FOR SUSTAINABLE GROUNDWATER MANAGEMENT PLAN IN YOGYAKARTA

Nishi Verma, M. Anda, Y. Wijayanti
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引用次数: 9

Abstract

Aim: This study investigates the development of a sustainable groundwater management strategy in Yogyakarta province through groundwater recharge technologies. This study also compares technologies used in the province and the one already implemented in Perth due to its similar nature in site geology and hydrogeology. Methodology and Results: Primary and secondary data were collected and analyzed. Water depth and hydraulic conductivity data were analyzed using permeameter and GIS program. GIS image analysis of water depth and hydraulic conductivity suggested that the placement of potential aquifer recharge sites would be best suited in the north-east part of the province, slightly outside the study area, to provide water for all. Two recharge schemes of an infiltration basin and an injection well with storm water detention tank were proposed. The injection well was decided upon, despite its higher cost, due to the impermeability of soils in Yogyakarta and possible water seepage to the environment. Similar to Perth’s Hartfield park scheme, an injection well would directly bypass these soil layers to recharge the aquifers with rainwater and storm water. Hartfield Park injects 4400 kL of water/year. Conclusion, significance and impact study: The findings of this study indicate aquifer recharge is a possible solution to overcome Yogyakarta’s high abstraction. Further studies recommend that injection well trials are further developed in terms of location, depth and sizing.
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日惹市可持续地下水管理计划的人工补给
目的:本研究通过地下水补给技术探讨日惹省可持续地下水管理策略的发展。本研究还比较了该省使用的技术和珀斯已经实施的技术,因为它们在现场地质和水文地质方面具有相似的性质。方法与结果:收集第一手和第二手资料并进行分析。利用渗透率仪和GIS程序对水深和导电性数据进行分析。地理信息系统对水深和水力导电性的图像分析表明,潜在的含水层补给点最适合放置在该省东北部,稍微超出研究区域,为所有人提供水。提出了两种补给方案:入渗池和带雨水滞留罐的注水井。尽管成本较高,但由于日惹土壤的不渗透性和可能对环境的渗水,决定使用注入井。与珀斯的哈特菲尔德公园计划类似,注入井将直接绕过这些土壤层,为含水层补充雨水和雨水。Hartfield Park油田每年注入4400千升的水。结论、意义及影响研究:本研究结果表明,含水层补给是克服日惹高抽象性的可能解决方案。进一步的研究表明,在位置、深度和尺寸方面,注入井试验需要进一步发展。
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