Hi Jessica
The following published gas evolution techniques have been used to
analyze for DIC in landfill leachates and groundwater
Games, L. M. and Hayes, J. M., 1976. Isolation and quantitative analysis
of the major carbon fractions in natural water samples. Anal. Chem. 48,
130-135.
Atekwana EA, Krishnamurthy RV. 1998. Investigations of seasonal
variations in dissolved inorganic carbon and d13C of surface waters
using a modified gas evolution technique. Journal of Hydrology 205:
265-278.

Some additional references on DIC in landfills include:
Games LM, and Hayes JM. 1977. Carbon isotopic study of the fate of
landfill leachate in groundwater. J. Water Pollution Control Federation
49: 668-677.

Walsh DC, LaFleur RG, Bopp RF. 1993. Stable carbon isotopes in dissolved
inorganic carbon of landfill leachate. Ground Water Management 16:
153-167.

Hackley KC, Liu CL, Coleman DD. 1996. Environmental isotope
characteristics of landfill leachates and gases. Ground Water 34:
827-836.

Rank D, Papessch W, Rajner V. 1996. Environmental isotopes study at a
research landfill (Breitenau, Lower Austria). International Atomic
Energy Vienna, IAEA-SM-336/111P: 379-381.

Cheers


Atekwana, Eliot A
Assistant Professor of Geology
Department of Geology and Geophysics
University of Missouri-Rolla
125 McNutt Hall
1870 Miner Circle
Rolla, MO  65409-0950 USA
email: [log in to unmask]
tel:   (573) 341-4016            fax:  (573)  341-6935

-----Original Message-----
From: Stable Isotope Geochemistry [mailto:[log in to unmask]] On
Behalf Of Jessica North
Sent: Wednesday, October 08, 2003 4:26 PM
To: [log in to unmask]
Subject: Re: [ISOGEOCHEM] landfill isotope studies

Thanks Ethan - I look forward to receiving the papers.

Just a quick question: did you analyse for d13C-DIC?  If so, what method
did you use?  I've been trying precipitation with barium chloride with
little success.

Regards,
Jessica

-----Original Message-----
From: Stable Isotope Geochemistry [mailto:[log in to unmask]] On
Behalf Of Ethan L. Grossman
Sent: Thursday, 9 October 2003 9:59 a.m.
To: [log in to unmask]
Subject: Re: [ISOGEOCHEM] landfill isotope studies

Jessica:

I'll send a couple of related papers.

Grossman, E.L., 2002. Stable carbon isotopes as indicators of
microbial activity in aquifers, in Manual of Environmental
Microbiology, 2nd ed., C.J. Hurst et al., (eds.), American Society
for Microbiology Press, Washington, DC, p. 728-742.

Grossman E.L., Cifuentes, L.A., and Cozzarelli, I.M., 2002. Anaerobic
methane oxidation in a landfill-leachate plume. Environmental Sci.
Technol., v. 36, p. 2436-2442.

Regards,
Ethan

>Dear list members,
>
>I am working on research involving stable isotope applications to
>municipal solid waste landfill leachate, specifically looking at
>d13C-DIC, d15N-NO3- and -NH4+, d34S-SO42-, d18O, and dD.
>
>I would very much like to make contact with other researchers involved
>in similar work, to exchange ideas, tips for methods (especially d15N
>analyses!), etc.  Particularly if anyone knows of landfill isotope
>researchers in New Zealand, that would be great.
>
>Many thanks, and kind regards,
>
>Jessica
>
>Jessica C. North
>Resource Consultant - PhD Candidate
>
>Department of Chemistry
>University of Otago
>PO Box 56, Dunedin
>New Zealand
>Tel 64 3 479 7477
>Mob 021 044 0382
>Fax 64 3 479 7906
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