| Titre : |
Chrome sludge compost - Effects on crops and soils |
| Type de document : |
texte imprimé |
| Auteurs : |
Li Gui-Ju, Auteur ; Zhang Chuan-Bo, Auteur ; Zhan Jing, Auteur ; Feng Wang, Auteur |
| Année de publication : |
2006 |
| Article en page(s) : |
p. 10-13 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Agriculture
Boues résiduaires
Chrome trivalent -- Absorption
Compostage
Déchets -- Valorisation
Engrais
Mesure
Tannage -- Déchets
|
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
Tannery sludge can contain 70% of organic substances which can have applications as a high-quality fertilizer, however, too high levels of chrome are a major obstacle for tannery sludge in agricultural applications. In this experiment, a study on chrome migration, transformation and resultant chrome levels has been done in the laboratory and expanded to using tannery sludge compost on agricultural land. These studies offer theoretical support for using tannery sludge. The experimental study shows that when Cr3+ levels in soil reach 250mg/kg, the plant absorption of chrome reaches the maximum value, which is 23.33mg/kg. The evidence shows that chrome loading of paddy field soil should be controlled to 350mg/kg. |
| Note de contenu : |
- EXPERIMENT PROGRAMS AND RESEARCH METHOD : Effect on soil and wheat growth - Measurement techniques - Compost materials and experimental project
- EXPERIMENTAL RESULTS AND DISCUSSION : Effect of chrome on wheat and in soil - Paddy rice comparison experiments
- Table 1 : Present condition of tannery sludge treatment in China
- Table 2 : Compost materials and experiment compost composition
- Table 3 : Chrome content in wheat and soil as a function of concentration of chrome solution (mg/kg)
- Table 4 : Biological production of wheat seedlings
- Table 5 : Existence state of chrome in the tannery sludge
- Table 6 : Main chemical constitutions of the compost with sludge and wheat straw
- Table 7 : Chrome distribution in each part of paddy rice (mg/Kg-1) |
| En ligne : |
https://drive.google.com/file/d/11ruWpVLjfp51cf-7AQufeSDxUHD26kOD/view?usp=share [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39178 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 90, N° 1 (01-02/2006) . - p. 10-13
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Chrome sludge compost - Effects on crops and soils in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 90, N° 1 (01-02/2006)
