Modelling the Dynamics of organic pollutants in soil following the spreading of sludge-green waste composts
The aim of this work was to evaluate our COP-Soil model derived from the COP-Compost model (Zhang et al., 2012;Lashermes et al., submitted), using experimental data that described the evolution of carbon from organic matter (OM)and organic pollutants (OPs) after the incorporation of composts into soil. We used the results of experiments wheresludge-green waste composts, containing residues of 14 C-fluoranthene, 14C-nonylphenol, 14C-glyphosate and 14C-linearalkylbenzene sulfonate from composting treatment (Lashermes et al., 2012a), were mixed to soil and incubated for 140 days under controlled aerated conditions (Haudin et al., in preparation).
Further Author:
C.N. Geng - INRA, France
Sequential extractions had been performed onsoil-compost mixtures at different days. The fraction recovered though CaCl2 extraction was defined as “solublefraction”, while the one obtained through methanol or NH4OH extraction was defined as “adsorbed fraction”. Afterchemical extractions, soil had been combusted and 14C-CO2 released trapped before counting by Liquid ScintillationCounting; the fraction of non-extractable residues of 14C-OPs (NER) could be directly deduced. These three fractionsand 14C-CO2 trapped in the NaOH solution (mineralization of 14C-OPs) were used to calibrate the OP module.Simulations presented in this work were performed with Matlab® software and its optimization toolbox for solvingnonlinear least square problems. The mineralization of OM from sludge-green waste composts during the incubationwith soil was well simulated with the parameters estimated by Zhang et al. (2012) for the simulation of the OMevolution during green waste composting. However, a compartment of humified OM with no degradation was addedinto the COP-Soil model. Due to the adsorption of soluble organic OM on soil particles, included minerals, which wasdifferent from composting environment, the compartment of soluble OM, originally assumed as biodegradable insidecompost OM, was reduced to half and the remaining part was included into a compartment of slow degradability. Theparameters estimated for OP module were the rates of NER formation Fr, the rate of OP degradation (dr) and thesorption coefficient (Kd) that was treated separately in the different runs. Using some relationships established betweenthe coefficients of adsorption, Kd, for OPs and the different organic carbon (OC) compartments and coupling the OPmodule with the OC one (Run D) produced the best simulation. The toxic effects of OPs and the possible related inhibition of microbial activity were not included in the COP-Soil model and could be considered in a future work.
| Copyright: | © European Compost Network ECN e.V. | |
| Quelle: | Orbit 2012 (Juni 2012) | |
| Seiten: | 6 | |
| Autor: | C.S. Haudin  G. Lashermes Sabine Houot Dr P. Garnier | |
| Die Bibliothek und die Kaufoptionen sind umgezogen zu https://library.wasteculture.com Bereits erworbene Artikel können weiterhin über myASK abgerufen werden. | ||
Diese Fachartikel könnten Sie auch interessieren:
Gärprodukte in Wasserschutzgebieten
© Bundesgütegemeinschaft Kompost e.V. (7/2013)
In den vergangenen Jahren ist eine Vielzahl von Bioabfallbehandlungsanlagen entstanden, in denen Bioabfälle nicht kompostiert, sondern zwecks Erzeugung von Biogas vergoren werden. Im Zuge der Planung und Genehmigung solcher Anlagen blieb häufig unberücksichtigt, dass regional verfügbare Flächen zur Verwertung der anfallenden Gärrückstände in Wasserschutzgebieten liegen und die Ausbringung der Gärrückstände in solchen Gebieten deutlich eingeschränkt oder ausgeschlossen sein kann.
Provivion of a web tool on bio-waste prevention for local authorities in Europe
© European Compost Network ECN e.V. (6/2012)
The European community cannot address the issue of bio-waste solely in terms of collection and waste management, assuch activities generate costs. Today, waste prevention in Europe must involve waste reduction and prevention at a locallevel, targeting all producers of bio-waste, not only consumers and households, and promoting the use of a number ofwaste reduction practices including composting, mulching, grinding, use of slow-growing plant species, using bio-wasteas animal feed, reducing food wastage and the use of ramial wood chips.
Further Authors:
N. Gaillard, N. Euzen, A. Lopes, B. Chaves, J.-J. Dohogne, P. Micheaux Naudet, O., De Clercq, M. Vanecek, J. Cerny
Qualitätssicherung von Bioabfall und Kompost als Schlüssel für eine hochwertige Verwertung – Stand und Perspektiven
© Witzenhausen-Institut für Abfall, Umwelt und Energie GmbH (4/2025)
Die Erzeugung von qualitativ hochwertigen Komposten nimmt immer stärker an Bedeutung zu. Grundlage für die Produktion hochwertiger Komposte sind getrennt gesammelte Bioabfälle.
Comparing the movement of three different types of microplastic in a simulated agricultural environment dependent on soil slope and rain intensity
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
Compost is known as a potential source of microparticles of plastic (MP) transport into agricultural soil, with impurities originating from biowaste.
Vergleich der Analysenmethoden für Atmungsaktivität (AT4) und Sauerstoffaufnahmerate (OUR) zur Beurteilung der Stabilität von Komposten
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (12/2024)
Ein wesentliches Qualitätskriterium für Kompost ist dessen Stabilität. In Österreich wurde zu deren Abschätzung bisher der Pflanzenverträglichkeitstest (Kressetest) herangezogen (BGBl II Nr 292/2001, 2001). Diese aus dem Linzer Substarttest (Gusenleitner J., Müller, & Nimmervoll, 1982) hervorgegangene Untersuchungsmethode wurde zur Detektion toxischer Effekte von Substraten entwickelt.
