文章基本信息

标题：Earthworms Converting Milk Processing Industry Sludge into Biomanure
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作者：Satveer Singh ; Sartaj A. Bhat ; Jaswinder Singh 等
期刊名称：Open Waste Management Journal
印刷版ISSN：1876-4002
出版年度：2017
卷号：10
期号：1
页码：30-40
DOI：10.2174/1876400201710010030
出版社：Bentham open
摘要：Aims and Objectives: The present study was conducted to utilize the Milk Processing Industry Sludge (MPIS) for the purpose of vermicomposting, in two sets of experiments viz . with earthworms (ME) and without earthworms (MW). Methods and Materials: Twenty young non-clitellated Eisenia fetida were released in each tray. The various parameters like growth, clitellum development, biomass, cocoon production and hatchlings of E. fetida were observed after every 15 days, during 90 days of vermicomposting. Results: The maximum growth and better responses were observed in ME₂₅ mixtures of MPIS which was the minimum ratio of the waste to CD. The physico-chemical analysis (pH, EC, TKN, TOC, C/N ratio, TAP, TK, TNa) and heavy metals (Cr, Cu, Mn, Pb) were also done before and after vermicomposting process. There was a significant increase in TKN (23-46%), and TAP (39-47%), and a decrease in pH (6.2-6.8%), EC (24.6-37.2%), TOC (16.8-37.9%), C/N ratio (23.8-97.9%), TK (26.6-40.6%), and TNa (31.3-53%) and heavy metals (Cr 30.9-40.6%, Cu 32.7-44.6%, Mn 23.9-36.3%, and Pb 32.6-42.9%) from initial to final feed mixtures with earthworms. Conclusion: Thus the final vermicompost had excellent physico-chemical properties with all nutrients in plant available forms. The study further strengthens that the vermicomposting is an efficient technique in converting MPIS into nutrient rich biomanure in a short period of time i.e . 90 days.
关键词：Growth; Vermiremediation; Solid industrial waste; Eisenia fetida ; Heavy metals; Physico-chemical analysis.