Seawater ozonation: effects of seawater parameters on oxidant loading rates, residual toxicity, and total residual oxidants/by-products reduction during storage time

被引:13
作者
Goncalves, Alex Augusto [1 ]
Gagnon, Graham A. [2 ]
机构
[1] Fed Univ Semi Arid UFERSA, Lab Seafood Technol & Qual Control LAPESC, Agr Sci Ctr CCA, Anim Sci Dept DCA, Ave Francisco Mota 572, BR-59625900 Mossoro, RN, Brazil
[2] Dalhousie Univ, Dept Civil & Resources Engn, Ctr Water Resources Studies, Halifax, NS B3J 1Z1, Canada
关键词
Ozone; Bromate; Bromine; Bromoform; Disinfection; Safety; Seawater Parameters; BALLAST WATER-TREATMENT; BROMIDE-CONTAINING WATERS; TROUT SALMO-GAIRDNERI; BROMATE FORMATION; SEA-WATER; OZONE DISINFECTION; AQUATIC ORGANISMS; ATLANTIC HALIBUT; DISSOLVED OZONE; DRINKING-WATER;
D O I
10.1080/01919512.2018.1448705
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The efficacy of ozonation in different seawater conditions provides an improvement in the water quality and promotes the increment of dissolved oxygen. By-products (bromine, bromate, and bromoform) formation is directly proportional to the ozonation time. Ozone-produced oxidants remain toxic in both closed and dark containers for at least 4 days; however, during long storage period (35 days) in dark and cold conditions, these residual oxidants decrease slowly. These results have practical implications for both the installation of ozone systems on ships ballast water or for recirculating aquaculture system for inactivating undesirable organisms present in seawater.
引用
收藏
页码:399 / 414
页数:16
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