화학공학소재연구정보센터
Bioresource Technology, Vol.126, 437-443, 2012
Management of food industry waste employing vermicomposting technology
This paper reports the vermicomposting of food industry sludges (FIS) mixed with different organic wastes employing Eisenia fetida. A total of 10 vermicomposting units containing different wastes combinations were established. After 15 weeks significant increase in total nitrogen (N-total) (60-214%), total available phosphorous (P-avail) (35.8-69.6%), total sodium (Na-total) (39-95%), and total potassium (K-total) (43.7-74.1%), while decrease in pH (8.45-19.7%), total organic carbon (OCtotal) (28.4-36.1%) and C:N ratio (61.2-77.8%) was recorded. The results indicated that FIS may be converted into good quality manure by vermicomposting if spiked with other organic wastes in appropriate quantities. (C) 2011 Elsevier Ltd. All rights reserved.