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Titolo:
Decontaminating materials used in ground water sampling devices: Organic contaminants
Autore:
Parker, LV; Ranney, TA;
Indirizzi:
USA, Cold Reg Res & Engn Lab, Hanover, NH 03755 USA USA Hanover NH USA 03755 , Cold Reg Res & Engn Lab, Hanover, NH 03755 USA Sci & Technol Corp, Hanover, NH 03755 USA Sci & Technol Corp Hanover NH USA 03755 chnol Corp, Hanover, NH 03755 USA
Titolo Testata:
GROUND WATER MONITORING AND REMEDIATION
fascicolo: 1, volume: 20, anno: 2000,
pagine: 56 - 68
SICI:
1069-3629(200024)20:1<56:DMUIGW>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
PVC; SOLUTES; PTFE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Parker, LV USA, Cold Reg Res & Engn Lab, 72 Lyme Rd, Hanover, NH 03755 USAUSA 72 Lyme Rd Hanover NH USA 03755 e Rd, Hanover, NH 03755 USA
Citazione:
L.V. Parker e T.A. Ranney, "Decontaminating materials used in ground water sampling devices: Organic contaminants", GR WATER M, 20(1), 2000, pp. 56-68

Abstract

In these studies, the efficiency of various decontamination protocols was tested on small pieces of materials commonly used in ground water sampling devices. Three materials, which ranged in ability to sorb organic solutes, were tested: stainless steel (SS), rigid polyvinyl chloride (PVC), and polytetrafluoroethylene (PTFE). The test pieces were exposed to two aqueous test solutions: One contained three volatile organic compounds (VOCs) and one nitroaromatic compound. and the other contained four pesticides. Also, three types of polymeric tubing were exposed to pesticide solutions. Generally,the contact times were 10 minutes and 24 hours for sorption and desorption. The contaminants were removed from the nonpermeable SS and the less-sorptive rigid PVC test pieces simply by washing with a hot detergent solution and rinsing with hot water. Additional treatment was required for the PTFE test pieces exposed to the VOCs and for the low-density polyethylene (LDPE) tubing exposed to the pesticide test solution. Solvent rinsing did not improve removal of the three VOCs from the PTFE and only marginally improved removal of the residual pesticides from the LDPE. However a hot water and detergent wash and rinse followed by oven drying at approximately 105 degrees Cwas effective for removing the VOCs from the PTFE and substantially reduced pesticide contamination from the LDPE.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/10/20 alle ore 05:08:11