干旱区生态环境知识资源中心(Arid): Release of treated effluent into streams: A global review of ecological impacts with a consideration of its potential use for environmental flows

Arid

DOI	10.1111/fwb.13519
	Release of treated effluent into streams: A global review of ecological impacts with a consideration of its potential use for environmental flows
	Hamdhani, Hamdhani 1,2; Eppehimer, Drew E.1; Bogan, Michael T.1
通讯作者	Hamdhani, Hamdhani
来源期刊	FRESHWATER BIOLOGY
ISSN	0046-5070
EISSN	1365-2427
出版年	2020
卷号	65 期号:9 页码:1657-1670
英文摘要	Worldwide, the addition of treated wastewater (i.e. effluent) to streams is becoming more common as urban populations grow and developing countries increase their use of wastewater treatment plants. Release of treated effluent can impair water quality and ecological communities, but also could help restore flow and maintain aquatic habitat in water-stressed regions. To assess this range of potential outcomes, we conducted a global review of studies from effluent-fed streams to examine the impacts of effluent on water quality and aquatic and riparian biota. We identified 147 quantitative studies of effluent-fed streams, most of which were from the U.S.A. and Europe. Over 85% of the studies identified water quality as a primary study focus, including basic physical and chemical parameters, as well as trace organic contaminants. Nearly 60% of the studies had at least some focus on aquatic or riparian biota, primarily fish, aquatic invertebrates, and basal resources (e.g. algae). Effluent inputs generally impaired water quality near discharge points, mainly through increased water temperature, nutrients, and concentrations of trace organic contaminants, but also via decreased dissolved oxygen levels. The majority of ecological studies found that basal resources, aquatic invertebrates, and fish were negatively affected in a variety of ways (e.g. biodiversity losses, replacement of sensitive with tolerant species). However, several studies showed the importance of effluent in providing environmental flows to streams that had been dewatered by anthropogenic water withdrawals, especially in semi-arid and arid regions. Knowledge gaps identified include the abiotic impacts of effluent, such as changes in channel morphology and hydrology (e.g. how nutrient-rich and warmer effluent affects infiltration rates or interactions with groundwater), the effects of effluent on plants and vertebrates (e.g. amphibians, birds), and the impact of effluent-induced perennialisation on naturally intermittent or ephemeral streams. Although effluent-fed streams often exhibit signs of ecological impairment, there is great potential for these systems to serve as refuges of aquatic biodiversity and corridors of ecological connectivity when wastewater treatment standards are high, especially in semi-arid and arid regions where natural streams have been dewatered.
英文关键词	aquatic invertebrates contaminants fish primary producers stream ecology urban ecology wastewater treatment
类型	Review
语种	英语
国家	USA ; Indonesia
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000533441500001
WOS关键词	WASTE-WATER TREATMENT ; TREATMENT-PLANT EFFLUENTS ; PERSONAL CARE PRODUCTS ; ROACH RUTILUS-RUTILUS ; URBAN STREAM ; MACROINVERTEBRATE ASSEMBLAGES ; REPRODUCTIVE DISRUPTION ; EMERGING CONTAMINANTS ; BACTERIAL COMMUNITIES ; DOMINATED STREAMS.
WOS类目	Ecology ; Marine & Freshwater Biology
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
来源机构	University of Arizona
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319134
作者单位	1.Univ Arizona, Sch Nat Resources & Environm, 1064 E Lowell St, Tucson, AZ 85721 USA; 2.Univ Mulawarman, Dept Aquat Resources Management, Samarinda, Indonesia
推荐引用方式 GB/T 7714	Hamdhani, Hamdhani,Eppehimer, Drew E.,Bogan, Michael T.. Release of treated effluent into streams: A global review of ecological impacts with a consideration of its potential use for environmental flows[J]. University of Arizona,2020,65(9):1657-1670.
APA	Hamdhani, Hamdhani,Eppehimer, Drew E.,&Bogan, Michael T..(2020).Release of treated effluent into streams: A global review of ecological impacts with a consideration of its potential use for environmental flows.FRESHWATER BIOLOGY,65(9),1657-1670.
MLA	Hamdhani, Hamdhani,et al."Release of treated effluent into streams: A global review of ecological impacts with a consideration of its potential use for environmental flows".FRESHWATER BIOLOGY 65.9(2020):1657-1670.