Water supply, waste assimilation, and low‐flow issues facing the Southeast Piedmont Interstate‐85 urban archipelago

Water supply, waste assimilation, and low‐flow issues facing the Southeast Piedmont Interstate‐85 urban archipelago
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东南皮埃蒙特州际公路 85 城市群岛面临的供水、废物同化和低流量问题

DOI:
10.1111/1752-1688.13130
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发表时间:
2023
期刊:
JAWRA Journal of the American Water Resources Association
影响因子:
--
通讯作者:
Stephens, Timothy
Stephens, Timothy
中科院分区:
--
文献类型:
--
作者:
Jackson, C. Rhett;Wenger, Seth J.;Bledsoe, Brian P.;Shepherd, J. Marshall;Capps, Krista A.;Rosemond, Amy D.;Paul, Michael J.;Welch‐Devine, Meredith;Li, Ke;Stephens, Timothy

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从佐治亚州亚特兰大到北卡罗来纳州罗利的85号州际公路走廊沿线沿着快速发展的城市依靠小河流供水和废物同化。这些河流有着共同点,包括干旱期间的供水压力、季节性低流量的废水稀释、干旱和极端降水的增加、下游富营养化问题以及高区域水生生物多样性。进一步的挑战包括快速增长;加剧水质和基础设施问题的蔓延;跨越许多县和市的水基础设施;以及大量的化粪池系统。为了适应人口增长和气候变化,有必要沿着政策和基础设施的调整,进行整体的多管辖区合作水资源规划。我们提出了六项行动来提高水基础设施的弹性:提高市政,工业,农业和热电部门的用水效率;采用间接饮用水再利用或闭环系统;允许干旱期间的水资源共享,但规范流域间转移以保护水生生态系统;增加营养物回收并减少污水中的碳和营养物排放;采用绿色基础设施和更好的雨水管理,以减少非点污染物负荷和减轻城市热岛效应;并应用CRIDA框架,将气候和水文的不确定性纳入水规划。
Rapidly growing cities along the Interstate‐85 corridor from Atlanta, GA, to Raleigh, NC, rely on small rivers for water supply and waste assimilation. These rivers share commonalities including water supply stress during droughts, seasonally low flows for wastewater dilution, increasing drought and precipitation extremes, downstream eutrophication issues, and high regional aquatic diversity. Further challenges include rapid growth; sprawl that exacerbates water quality and infrastructure issues; water infrastructure that spans numerous counties and municipalities; and large numbers of septic systems. Holistic multi‐jurisdiction cooperative water resource planning along with policy and infrastructure modifications is necessary to adapt to population growth and climate. We propose six actions to improve water infrastructure resilience: increase water‐use efficiency by municipal, industrial, agricultural, and thermoelectric power sectors; adopt indirect potable reuse or closed loop systems; allow for water sharing during droughts but regulate inter‐basin transfers to protect aquatic ecosystems; increase nutrient recovery and reduce discharges of carbon and nutrients in effluents; employ green infrastructure and better stormwater management to reduce nonpoint pollutant loadings and mitigate urban heat island effects; and apply the CRIDA framework to incorporate climate and hydrologic uncertainty into water planning.
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