Rapid production of organic fertilizer by dynamic high-temperature aerobic fermentation (DHAF) of food waste.

Abstract:

:Keep composting matrix in continuous collision and friction under a relatively high-temperature can significantly accelerate the progress of composting. A bioreactor was designed according to the novel process. Using this technology, organic fertilizer could be produced within 96h. The electric conductivity (EC) and pH value reached to a stable value of 2.35mS/cm and 7.7 after 96h of fermentation. The total carbon/total nitrogen (TC/TN) and dissolved carbon/dissolved nitrogen (DC/DN) ratio was decrease from 27.3 and 36.2 to 17.4 and 7.6 respectively. In contrast, it needed 24days to achieve the similar result in traditional static composting (TSC). Compost particles with different size were analyzed to explore the rapid degradation mechanism of food waste. The evidence of anaerobic fermentation was firstly discovered in aerobic composting.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Jiang Y,Ju M,Li W,Ren Q,Liu L,Chen Y,Yang Q,Hou Q,Liu Y

doi

10.1016/j.biortech.2015.08.053

subject

Has Abstract

pub_date

2015-12-01 00:00:00

pages

7-14

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(15)01159-1

journal_volume

197

pub_type

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