Effect of temperature on efficiency of Eisenia foetida vermicomposting on organic-waste-mixed municipal sludge
CHEN Da-zhi1, LIU Shun-hui2, WU Yan1
1. Institute of Engineering Technology of Guangdong, Guangzhou 510440, China; 2. School of Life Sciences and Biopharmacology, Guangdong Pharmaceutical College, Guangzhou 510006, China
In order to investigate the effect of temperature on earthworm's biomass and efficiency of vermicomposting,a simulated study of Eisenia foetida vermicomposting on organic-waste-mixed municipal sludge was carried out under different temperatures in laboratory.Results showed that under the condition with other ecological factors unchanged,there was an optimum temperature range for the growth and reproduction of E.foetida.This range was probably around 20℃,and temperatures above or below this range would do harm to earthworm's growth and reproduction.The efficiency of E.foetida vermicomposting on the organic-waste-mixed municipal sludge got the summit point when the medium temperature was 20℃,but declined under other temperatures,especially under low temperatures(5℃,10℃) where there were significant drops in the efficiency;while under higher temperatures(30℃,35℃),the efficiency drops were insignificant.In the view of industrial application,if the reproductive ability for the earthworm population and the efficiency of vermicomposting are considered together,medium temperature of around 20℃ is possibly the optimum temperature range for the vermicomposting of E.foetida on the organic-waste-mixed municipal sludge.
陈大志1, 刘顺会2*, 吴燕1. 温度对赤子爱胜蚓堆肥处理有机垃圾混合剩余污泥效率的影响[J]. , 2012, 31(1): 8-12.
CHEN Da-zhi1, LIU Shun-hui2, WU Yan1. Effect of temperature on efficiency of Eisenia foetida vermicomposting on organic-waste-mixed municipal sludge. , 2012, 31(1): 8-12.