Title:
METHOD FOR ACCELERATED PRODUCTION OF A COMPOST, AND COMPOST OBTAINED BY SAID METHOD
Document Type and Number:
WIPO Patent Application WO2003043957
Kind Code:
A3
Abstract:
The invention concerns a method comprising the following steps which consist, during the preparation phase, in: loading the waste to be treated in a bioreactor, providing optimal water content between 60 % and 70 %, homogenizing the mixture by an initial stirring; during the stabilizing phase: continuously carrying out forced ventilation, stirring at regular time intervals; during the maturation phase: allowing the compost to rest exposed to ambient air. The organic waste consists essentially of lignocellulosic residues in relatively fine fractions, and, before said initial stirring, adding nitrogenous liquid waste to obtain a mixture wherein the lignocellulosic residues/nitrogenous waste ratio is such that it provides an initial carbon/nitrogen ratio (C/N) of said mixture of about 25 to about 40, and providing an initial pH between about 5.2 and about 5.5.
Inventors:
DE SOUZA KATIA (FR)
Application Number:
PCT/FR2002/003980
Publication Date:
December 11, 2003
Filing Date:
November 20, 2002
Export Citation:
Assignee:
DE SOUZA KATIA (FR)
International Classes:
C05F5/00; C05F11/00; C05F17/00; (IPC1-7): C05F5/00; C05F17/00
Domestic Patent References:
| WO1990007282A1 | 1990-07-12 |
Foreign References:
| FR2125168A1 | 1972-09-29 | |||
| GB1600412A | 1981-10-14 | |||
| EP0908432A2 | 1999-04-14 | |||
| EP0090091A1 | 1983-10-05 |
Other References:
M.J. NEGRO ET AL.: "Composting of sweet sorghum bagasse with other wastes.", BIORESOURCE TECHNOLOGY, vol. 67, 1999, pages 89 - 92, XP002214135
M. TUOMELA ET AL.: "Biodegradation of lignin in a compost environment; a review", BIORESOURCE TECHNOLOGY, vol. 72, 2000, pages 169 - 183, XP002214136
DATABASE COMPENDEX [online] ENGINEERING INFORMATION, INC., NEW YORK, NY, US; BOUCHER V DAREES ET AL: "Reducing ammonia losses by adding FeCl3 during composting of sewage sludge", XP002214134, Database accession no. EIX99334708330
V.K. SHARMA ET AL.: "Processing of urban and Agro-Industrial Residues by Aerobic Composting: Review", ENERGY CONVERS. MGMT., vol. 38, no. 5, 1997, pages 453 - 478, XP002214137
M. TUOMELA ET AL.: "Biodegradation of lignin in a compost environment; a review", BIORESOURCE TECHNOLOGY, vol. 72, 2000, pages 169 - 183, XP002214136
DATABASE COMPENDEX [online] ENGINEERING INFORMATION, INC., NEW YORK, NY, US; BOUCHER V DAREES ET AL: "Reducing ammonia losses by adding FeCl3 during composting of sewage sludge", XP002214134, Database accession no. EIX99334708330
V.K. SHARMA ET AL.: "Processing of urban and Agro-Industrial Residues by Aerobic Composting: Review", ENERGY CONVERS. MGMT., vol. 38, no. 5, 1997, pages 453 - 478, XP002214137
Download PDF: