Department of Environmental Science, Tezpur University, Assam 784028, India.
Department of Civil & Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 133-791, Republic of Korea.
Bioresour Technol. 2015 Mar;180:230-6. doi: 10.1016/j.biortech.2014.12.062. Epub 2015 Jan 3.
Information on vermicomposting with Metaphire posthuma is scanty. This paper, therefore, aims to evaluate the bioconversion efficiency of this species against Eiseniafetida. For comparative analysis, different combinations of municipal solid waste (MSW) and cow dung were used as substrates. The contents of total N and availability of P, K, and Fe increased significantly in both Metaphire and Eisenia systems which was accompanied by substantial reduction in pH and total organic C. Both species exhibited similar levels of urease activity and microbial respiration. Moreover, bioavailability of heavy metals (Pb, Zn, Mn, and Cu) was reduced substantially during vermicomposting, irrespective of the earthworm species. In contrast, each species was distinguished by the enhancement either in microbial biomass C and phosphatase activity (Eisenia) or in humification and fulvic/humic acid C (Metaphire). The overall results suggest that indigenous earthworm, M.posthuma could be utilized as a successful candidate for bioprocessing of toxic wastes.
关于赤子爱胜蚓进行堆肥的信息很少。因此，本文旨在评估该物种对赤子爱胜蚓的生物转化效率。为了进行比较分析，使用了不同组合的城市固体废物（MSW）和牛粪作为基质。在赤子爱胜蚓和赤子爱胜蚓系统中，总 N 含量和 P、K、Fe 的有效性显著增加，同时 pH 值和总有机 C 显著降低。两种生物的脲酶活性和微生物呼吸作用都相似。此外，无论蚯蚓种类如何，重金属（Pb、Zn、Mn 和 Cu）的生物有效性在堆肥过程中都显著降低。相比之下，每种生物都表现出微生物生物量 C 和磷酸酶活性（赤子爱胜蚓）或腐殖化和富里酸/胡敏酸 C（赤子爱胜蚓）的增强。总的来说，这些结果表明，本地蚯蚓赤子爱胜蚓可以作为处理有毒废物的生物处理的成功候选者。
