Inactivation of bacterial pathogenic load in compost against vermicompost of organic solid waste aiming to achieve sanitation goals: A review
| Autor: | Romeela Mohee, Nuhaa Soobhany, Vinod Kumar Garg |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Municipal solid waste
Sanitation 020209 energy 02 engineering and technology 010501 environmental sciences engineering.material Solid Waste medicine.disease_cause complex mixtures 01 natural sciences Soil 0202 electrical engineering electronic engineering information engineering medicine Animals Humans Recycling Organic matter Oligochaeta Waste Management and Disposal 0105 earth and related environmental sciences chemistry.chemical_classification Waste management Compost Composting fungi Pathogenic bacteria Biodegradable waste Waste treatment chemistry engineering Environmental science Goals Vermicompost |
| Zdroj: | Waste Management. 64:51-62 |
| ISSN: | 0956-053X |
| DOI: | 10.1016/j.wasman.2017.03.003 |
| Popis: | Waste management strategies for organic residues, such as composting and vermicomposting, have been implemented in some developed and developing countries to solve the problem of organic solid waste (OSW). Yet, these biological treatment technologies do not always result in good quality compost or vermicompost with regards to sanitation capacity owing to the presence of bacterial pathogenic substances in objectionable concentrations. The presence of pathogens in soil conditioners poses a potential health hazard and their occurrence is of particular significance in composts and/or vermicomposts produced from organic materials. Past and present researches demonstrated a high-degree of agreement that various pathogens survive after the composting of certain OSW but whether similar changes in bacterial pathogenic loads arise during vermitechnology has not been thoroughly elucidated. This review garners information regarding the status of various pathogenic bacteria which survived or diffused after the composting process compared to the status of these pathogens after the vermicomposting of OSW with the aim of achieving sanitation goals. This work is also indispensable for the specification of compost quality guidelines concerning pathogen loads which would be specific to treatment technology. It was hypothesized that vermicomposting process for OSW can be efficacious in sustaining the existence of pathogenic organisms most specifically; human pathogens under safety levels. In summary, earthworms can be regarded as a way of obliterating pathogenic bacteria from OSW in a manner equivalent to earthworm gut transit mechanism which classifies vermicomposting as a promising sanitation technique in comparison to composting processes. |
| Databáze: | OpenAIRE |
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