Assessment of the impact of traditional septic tank soakaway systems on water quality in Ireland

被引：17

作者：

Keegan, Mary ^{[1
]}

Kilroy, Kate ^{[2
,3
]}

Nolan, Daniel ^{[1
]}

Dubber, Donata ^{[1
]}

Johnston, Paul M. ^{[1
]}

Misstear, Bruce D. R. ^{[1
]}

O'Flaherty, Vincent ^{[2
,3
]}

Barrett, Maria ^{[2
,3
]}

Gill, Laurence W. ^{[1
]}

机构：

[1] Trinity Coll Dublin, Dept Civil Struct & Environm Engn, Dublin, Ireland

[2] NUI, Sch Nat Sci, Dept Microbiol, Galway, Ireland

[3] NUI, Ryan Inst, Galway, Ireland

来源：

WATER SCIENCE AND TECHNOLOGY | 2014年 / 70卷 / 04期

关键词：

Escherichia coli; microbial source tracking; pollution attenuation; septic tanks; subsoils; SOILS;

D O I：

10.2166/wst.2014.227

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

One of the key threats to groundwater and surface water quality in Ireland is the impact of poorly designed, constructed or maintained on-site wastewater treatment systems. An extensive study was carried out to quantify the impact of existing sites on water quality. Six existing sites, consisting of a traditional septic tank and soakaway system, located in various ranges of subsoil permeabilities were identified and monitored to determine how well they function under varying subsoil and weather conditions. The preliminary results of the chemical and microbiological pollutant attenuation in the subsoil of the systems have been assessed and treatment performance evaluated, as well as impact on local surface water and groundwater quality. The source of any faecal contamination detected in groundwater, nearby surface water and effluent samples was confirmed by microbial source tracking. From this, it can be seen that the transport and treatment of percolate vary greatly depending on the permeability and composition of the subsoil.

引用

页码：634 / 641

页数：8

共 12 条

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