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Impact of chlorine dioxide and ozone on the oxidation of NTA during drinking water treatment

Journal Article · · Bull. Environ. Contam. Toxicol.; (United States)
DOI:https://doi.org/10.1007/BF01625582· OSTI ID:6000768
; ; ;
The use, as it is proposed, of nitrilotriacetic acid (NTA) for phosphate replacement in detergents will lead to its discharge in surface water at relatively high concentrations. Questions have been raised about potential health hazards related to the uptake and treatment of the NTA containing riverwater for drinking water supply. Degradation of NTA by biological oxidation in waste water treatment systems, soil and surface water under aerobic conditions has been demonstrated many times. However reports on degradation of NTA by chemical oxidation applied in water treatment processes are scarce. The aim of the present investigation was to determine removal of nitrilotriacetic acid upon chlorine, chlorine dioxide and ozone treatment under conditions characteristic for drinking water treatment practice; possible formation of mutagenic substances from the reaction of NTA with these oxidants; and formation of halogenated reaction products of NTA with chlorine and chlorine dioxide.
Research Organization:
National Inst. of Public Health and Environmental Hygiene, Leidschendam, Netherlands
OSTI ID:
6000768
Journal Information:
Bull. Environ. Contam. Toxicol.; (United States), Journal Name: Bull. Environ. Contam. Toxicol.; (United States) Vol. 33:5; ISSN BECTA
Country of Publication:
United States
Language:
English

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Related Subjects

520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AMINO ACIDS
BIODEGRADATION
CARBOXYLIC ACIDS
CHALCOGENIDES
CHELATING AGENTS
CHEMICAL REACTIONS
CHLORINE
CHLORINE COMPOUNDS
CHLORINE OXIDES
DECOMPOSITION
DRINKING WATER
ELEMENTS
ENVIRONMENTAL EFFECTS
HALOGEN COMPOUNDS
HALOGENS
HYDROGEN COMPOUNDS
MUTAGENS
NONMETALS
NTA
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
OZONE
SURFACE WATERS
WATER
WATER TREATMENT