Mixing in distribution system storage tanks: Its effect on water quality

被引:33
作者
Clark, RM
Abdesaken, F
Boulos, PF
Mau, RE
机构
[1] US EPA,DYNCORP,DIV WATER SUPPLY & WATER RESOURCE,NAT RISK MANAGEMENT RES LAB,CINCINNATI,OH
[2] MONTGOMERY WATSON,WATER DISTRIBUT TECHNOL,PASADENA,CA 91101
[3] MONTGOMERY WATSON,DEPT MUNICIPAL SERV,PASADENA,CA 91101
来源
JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE | 1996年 / 122卷 / 09期
关键词
D O I
10.1061/(ASCE)0733-9372(1996)122:9(814)
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Nearly all distribution systems in the United States include storage tanks and reservoirs. They are the most visible components of a water distribution system but are generally the least understood in terms of their impact on water quality. Long residence times in storage tanks can have negative impacts on water quality in drinking water distribution systems, including the loss of chlorine residuals and the regrowth of microorganisms. It is generally accepted that complete mixing maximizes water quality but little is understood about mixing regimes in general. This paper demonstrates the use of compartment models to characterize mixing in three tanks. It was found that the mixing regimes in these tanks were well characterized by compartment-type models and that these tanks were not completely mixed, contrary to conventional wisdom. It is clear that much more research is needed in order to truly understand mixing regimes in tanks and reservoirs and that this understanding, if properly applied, can have a positive impact on water quality.
引用
收藏
页码:814 / 821
页数:8
相关论文
共 11 条
[1]  
[Anonymous], CHEM ENG SCI
[2]  
BOULOS PF, 1995, ASCE, V121, P49
[3]   WATER LEGISLATION IN THE UNITED-STATES - AN OVERVIEW OF THE SAFE DRINKING-WATER ACT [J].
CLARK, RM ;
EHRETH, DJ ;
CONVERY, JJ .
TOXICOLOGY AND INDUSTRIAL HEALTH, 1991, 7 (5-6) :43-52
[4]  
CLARK RM, 1990, J AM WATER WORKS ASS, V82, P40
[5]  
CLARK RM, 1991, J AM WATER WORKS ASS, P67
[6]  
CLARK RM, 1987, WATER, V28, P20
[7]   FORCED PLUMES AND MIXING OF LIQUIDS IN TANKS [J].
GERMELES, AE .
JOURNAL OF FLUID MECHANICS, 1975, 71 (OCT14) :601-623
[8]  
GRAYMAN WM, 1993, J AM WATER WORKS ASS, V85, P67
[9]  
KENNEDY MS, 1993, J AM WATER WORKS ASS, V85, P78
[10]  
KIRMEYER G, 1994, ASSESSMENT CONDITION