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Coal-Fired Power Plant Wastewater Co...

Good, Kelly D.

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Coal-Fired Power Plant Wastewater Contributions to Bromide Concentrations in Drinking Water Sources.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Coal-Fired Power Plant Wastewater Contributions to Bromide Concentrations in Drinking Water Sources./
作者:	Good, Kelly D.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
面頁冊數:	263 p.
附註:	Source: Dissertations Abstracts International, Volume: 80-07, Section: B.
Contained By:	Dissertations Abstracts International80-07B.
標題:	Environmental management. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13423046
ISBN:	9780438760462

Coal-Fired Power Plant Wastewater Contributions to Bromide Concentrations in Drinking Water Sources.
Good, Kelly D.

Coal-Fired Power Plant Wastewater Contributions to Bromide Concentrations in Drinking Water Sources. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 263 p.

Source: Dissertations Abstracts International, Volume: 80-07, Section: B.

Thesis (Ph.D.)--Carnegie Mellon University, 2018.

This item must not be sold to any third party vendors.

Drinking water sources are affected by natural and anthropogenic processes that can alter their treatability. Fossil fuel extraction and utilization activities have received considerable attention recently since discharge of their associated wastewaters can increase bromide loading to source waters and elevate bromide concentrations at downstream drinking water intakes. When bromide is present in drinking water sources, the rate and extent of disinfection byproduct (DBP) formation increases, and the speciation shifts toward brominated forms. Brominated DBPs exhibit higher toxicity and are associated with negative health outcomes (e.g., cancer) at lower concentrations than chlorinated DBPs. Thus, increases in brominated DBPs increase the health risk associated with treated drinking water. The objective of this work was to evaluate anthropogenic sources of bromide to surface waters and their effects on drinking water sources, with a focus on coal-fired power plants operating wet flue gas desulfurization (FGD) systems. Three main conclusions were reached through watershed-, state-, and national-level analyses. First, bromide concentrations at a drinking water intake in the lower Allegheny River in southwestern Pennsylvania are significantly affected by oil and gas produced water and wet FGD discharges, particularly during low flow periods, and the contributions are governed by the magnitude of the loads and the dilution capacity at the intake, not geographic proximity. Power plant-associated loads could increase threefold if bromide addition is selected as a process for mercury emission control. Second, considering a state-level analysis, there are significantly more people served by Pennsylvania drinking water systems that are downstream of coal-fired power plant FGD discharges than previously identified, and multiple power plants can affect a single drinking water intake. Third, although overall coal consumption has declined, an increase in wet FGD-associated coal consumption, concurrent with increasing use of halogen addition for meeting air quality regulations or securing federal tax credits, has resulted in increases in bromide discharges from wet FGD that are affecting drinking water systems across the country, particularly in the Ohio (HUC-05), Missouri (HUC-10) and South-Atlantic-Gulf (HUC-03) hydrologic regions. Insufficient information on use of refined coal (which may or may not have been treated with halogens) and on bromide addition for meeting mercury regulations leads to significant uncertainty in the amount of bromide that will enter drinking water sources in the future.

ISBN: 9780438760462Subjects--Topical Terms:

535182
Environmental management.
Subjects--Index Terms:

Disinfection byproducts

Coal-Fired Power Plant Wastewater Contributions to Bromide Concentrations in Drinking Water Sources.
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