Evolution of non-dissolved particulate organic matter during composting of sludge with straw.
- Robin, Paul
- Ablain, Frédérique
- Yulipriyanto, Hiéronymus
- Pourcher, Anne-Marie
- Morvan, Thierry
- Cluzeau, Daniel
- Morand, Philippe
DOIAbstract
FR2116International audienceLong term composting induces loss of C and organic matter stabilisation. These two processes may have opposite effects on long term carbon storage in soils. To check whether raw materials should be composted or not before being spread on the soil, changes in particle size fractions were quantified during composting of 9 tons of sewage sludge and straw. Both the mass of the fine fraction (<2 lm) and the amount of carbon contained in it increased after seven months, respectively, +37% and +43%. The fine fraction contributes to carbon sequestration. A literature review supported the assumption that composting should increase long term C storage. Nevertheless, soil texture or agricultural practices modify the behavio...
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