Technical Report for Water Circulation Pumping System for Trihalomethanes (THMs)

doi:10.2172/1251040

GSTDTAP > 地球科学

DOI	10.2172/1251040
报告编号	LLNL--TR-672480
来源ID	OSTI ID: 1251040
	Technical Report for Water Circulation Pumping System for Trihalomethanes (THMs)
	Bellah, W.
	2015-06-08
出版年	2015
页数	16
语种	英语
国家	美国
领域	地球科学
英文摘要	The TSWWS was added as an active source of supply to the permit (No. 03-10-13P-003) in 2010, but has never been used due to the potential for formation of trihalomethanes (THMs) in the distribution system. THMs are formed as a by-product when chlorine is used to disinfect water for drinking. THMs are a group of chemicals generally referred to as disinfection by-products (DBPs). THMs result from the reaction of chlorine with organic matter that is present in the water. Some of the THMs are volatile and may easily vaporize into the air. This fact forms the basis of the design of the system discussed in this technical report. In addition, the design is based on the results of a study that has shown success using aeration as a means to reduce TTHMs to within allowable concentration levels with turn-over times as long as ten days. The Primary Drinking Water Standards of Regulated Contaminants Maximum Contaminant Level (MCL) for TTHMs is 80 parts per billion (ppb). No other changes to the existing drinking water distribution system and chlorination operations are anticipated before switching to the TSWWS as the primary drinking water source. The two groundwater wells (Wells 20 and 18) which are currently the primary and backup water sources for the system would be maintained for use as backup supply. In the future, one of the wells may be removed from the system. A permit amendment would be filed at that time if this modification was deemed appropriate.
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来源平台	US Department of Energy (DOE)
引用统计
文献类型	科技报告
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/7057
专题	地球科学
推荐引用方式 GB/T 7714	Bellah, W.. Technical Report for Water Circulation Pumping System for Trihalomethanes (THMs),2015.