Waste Management & Research

 

Advanced Search

Journal Navigation

Journal Home

Subscriptions

Archive

Contact Us

Table of Contents

Click here to sign up for SAGE Journal Email Alerts today!

Sign In to gain access to subscriptions and/or personal tools.
This Article
Right arrow Full Text (PDF)
Right arrow References
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to Saved Citations
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Request Reprints
Right arrow Add to My Marked Citations
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Zancada, M. C.
Right arrow Articles by Román, R.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Zancada, M. C.
Right arrow Articles by Román, R.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?
Waste Management & Research, Vol. 22, No. 1, 24-34 (2004)
DOI: 10.1177/0734242X04042282

Speciation of Lipids and Humus-Like Colloidal Compounds in a Forest Soil Reclaimed with Municipal Solid Waste Compost

M. Cristina Zancada

Centro de Ciencias Medioambientales, CSIC. Serrano 115 B, E-28006 Madrid, Spain

Gonzalo Almendros

Centro de Ciencias Medioambientales, CSIC. Serrano 115 B, E-28006 Madrid, Spain, humus{at}ccma.csic.es

Jesús Sanz

Instituto de Química Orgánica General, CSIC. Juan de la Cierva 3, E-28006 Madrid, Spain

Román Román

Centro de Ciencias Medioambientales, CSIC. Serrano 115 B, E-28006 Madrid, Spain

The progressive transformations of lipid and humus-like fractions in soil after massive input (400 Mg ha-1) of urban waste have been studied during an 87-week experiment in field plots of a degraded Calcic Regosol in Central Spain.

Structural changes in the macromolecular fractions were small when compared with the qualitative and quantitative changes in lipid composition. The intense depletion of the lipid fraction with time and the decrease of the humic acid to fulvic acid ratio were the most significant quantitative indices of the compost transformation in soil. Changes in soil lipid fractions were especially noted in relation to their speciation status and distribution patterns (carbon preference index and relative chain length). Three subfractions were considered: (I) direct extraction with petroleum ether, (II) liquid-liquid extraction after soil treatment with 2 M H3PO4 and (III) after soil treatment with 0.1 M NaOH.

Although lipid concentration tends to decrease with time, lipids in the fraction tightly bonded to soil (III) remained qualitatively and quantitatively constant in the course of the field experiment. Gas chromatographic-mass spectrometric analyses showed that the more stable the association of lipid to the soil matrix, the fewer the changes observed in the distribution pattern of the fatty acids during the progressive transformation stages.

Key Words: Alkanes • fatty acids • soil restoration • urban waste • humic acids • fulvic acids • wmr 596-6


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?