Polymer-supported reagents for disinfection of water

A macroporous poly(styrene-co-divinylbenzene) resin having redox N,N-dichlorosulfonamide group, was modified for use in small-scale chlorination of potable water. The resin was synthesized via sulfonyl chloride by modification of the strong acid cation exchange resin, Amberlyst-15. The products obtained after treatment contained -SO2NH2 and -SO 3H groups. The sulfonic acid groups were determined by a total ion exchange capacity measurement. The sulfonamide groups were chlorinated mainly to the dichlorosulfonamide groups by laundry bleach acidified with acetic acid. The concentration of sulfonamide groups was determined by its chlorine holding capacity. The resin was further characterized by photoacoustic infrared spectroscopy. Tap water, sparged with air to remove chlorine, was passed through a column containing chlorinated resin at a flow rate of 5.0mL/min. Effluent water from the flow system was analyzed for free and combined active Cl. The resin was extracted with dichloromethane and examined for total organic carbon and by GC/MS and HPLC.

Name thesis:degree_name

Master of Science (MS)

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Chemistry

Grantor dc:publisher

University of Nevada, Las Vegas

Year

2004

Author dc:creator

• Ifalade, Sylvester Ojo

Contributors dc:contributor

• Spencer M. Steinberg
• David W. Emerson

Statement dc:rights

• IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/

Language dc:language

English

Identifier

https://oasis.library.unlv.edu/rtds/1648

OAI identifier oai:identifier

oai:oasis.library.unlv.edu:rtds-2647