地下水补给解决城市沿海含水层海水入侵与供应问题

IF 0.8 Q3 EDUCATION & EDUCATIONAL RESEARCH Case Studies in the Environment Pub Date : 2021-02-05 DOI:10.1525/CSE.2021.1223118
M. Kiparsky, K. Miller, W. Blomquist, Annapurna Holtzapple, Anita Milman
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引用次数: 1

摘要

奥兰治县水区(OCWD)于1933年由加州立法机构创建,负责管理奥兰治县的水资源。作为对抗海水入侵和保证盆地可靠地下水供应战略的一部分,OCWD建造了一个回收废水设施,处理来自奥兰治县卫生区的废水,并通过注入井和渗透池将水重新注入盆地。OCWD的第一个回收废水设施,21号水厂,于1975年开始运营,并于2008年被地下水补给系统(GWRS)取代。补给水不作为海水指导的障碍,由当地水区和市政当局(称为“生产商”)抽水,他们向OCWD支付抽水费用。对生产者来说,GWRS提供的水比从其他来源(包括进口地表水)获得的水更可靠,也更便宜。为了应对海水入侵的威胁,OCWD将其成功归功于通过开发新水源创造性地实现补给。OCWD在地下水管理方面的广泛权限和权威,加上其多年来对补给计划的有效实施和长期管理,使得利用处理过的废水进行MAR的创新成为可能。
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Groundwater Recharge to Address Seawater Intrusion and Supply in an Urban Coastal Aquifer
The Orange County Water District (OCWD) was created in 1933 by the California Legislature and tasked with managing water resources in Orange County. As a part of its strategy to fight seawater intrusion and guarantee a reliable groundwater supply in the basin, OCWD built a recycled wastewater facility that treats wastewater received from the Orange County Sanitation District and recharges the water into the basin through injection wells and infiltration ponds. OCWD’s first recycled wastewater facility, Water Factory 21, began operating in 1975 and was replaced in 2008 by the Groundwater Replenishment System (GWRS). Recharged water not serving as a barrier for seawater instruction is pumped by local water districts and municipalities (referred to as “producers”), who pay a pumping fee to OCWD. Water provided by GWRS is both more reliable and less expensive for the producers than water acquired from other sources, including imported surface water. In responding to the recognized threat of seawater intrusion, OCWD owes its success to creatively enabling recharge through the development of novel source water. OCWD’s broad purview and authority to manage groundwater, combined with its effective implementation and long-term stewardship of the recharge program as it has evolved over many years, have enabled innovation in MAR using treated wastewater.
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CiteScore
1.40
自引率
12.50%
发文量
18
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