Department of Environmental Science and Engineering, Guru Jambheshwar University of Science and Technology, Hisar 125001, Haryana, India.
Bioresour Technol. 2012 Dec;126:437-43. doi: 10.1016/j.biortech.2011.11.116. Epub 2011 Dec 3.
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 (OC(total)) (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.
本文报道了利用赤子爱胜蚓对食品工业污泥(FIS)与不同有机废物混合进行堆肥的情况。共建立了 10 个含有不同废物组合的堆肥单元。经过 15 周的时间,总氮(N(total))(60-214%)、总有效磷(P(avail))(35.8-69.6%)、总钠(Na(total))(39-95%)和总钾(K(total))(43.7-74.1%)显著增加,而 pH(8.45-19.7%)、总有机碳(OC(total))(28.4-36.1%)和 C:N 比(61.2-77.8%)则下降。结果表明,如果将 FIS 与适量的其他有机废物混合进行堆肥,FIS 可以转化为优质肥料。