Thermal analysis in the evaluation of compost stability: a comparison with humification parameters

被引：53

作者：

Dell'Abate, MT ^{[1
]}

Canali, S ^{[1
]}

Trinchera, A ^{[1
]}

Benedetti, A ^{[1
]}

Sequi, P ^{[1
]}

机构：

[1] Ist Sperimentale Nutr Piante, I-00184 Rome, Italy

来源：

NUTRIENT CYCLING IN AGROECOSYSTEMS | 1998年 / 51卷 / 03期

关键词：

compost stabilization; organic matter; humification parameters; differential scanning calorimetry; differential thermal analysis; thermogravimetry;

D O I：

10.1023/A:1009734816502

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Characterization of organic matter of six composts from agroindustrial wastes was carried out by both chemical analysis and thermal analysis in order to assess their level of stability. Degree of humification (DH%) and index of humification (HI) were calculated after extraction, fractionation and analysis of the organic carbon from composts. Differential Scanning Calorimetry (DSC) and thermogravimetry (TG) were simultaneously performed in oxidizing conditions on whole ground composts. Thermoanalitical data resulted to be useful in integrating quantitative information coming from chemical analysis of humified fraction of compost organic matter. Particularly, DSC curves allow to distinguish between well and poor stabilized composts, and information deriving from weight losses, registered by TG curves, permits to individuate a thermoanalytical parameter (R1) that resulted to be well correlated to humification parameters DH% and HI.

引用

页码：217 / 224

页数：8

共 14 条

[1]

Barberis R., 1996, The science of composting: part 1., P175

[2]

BENEDETTI A, 1993, P S NITR MIN AGR SOI, P127

[3] MATURITY ASSESSMENT OF WHEAT-STRAW COMPOSTS BY THERMOGRAVIMETRIC ANALYSIS [J].