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مجله بهداشت محیط و توسعه پایدار، جلد ۱، شماره ۱، صفحات ۴۳-۵۰
عنوان فارسی
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عنوان انگلیسی Reduction of Pathogens from Mixture of Cow Manure, Domestic Waste and Wastewater Treatment Plant Sludge by Vermicomposting Process
چکیده انگلیسی مقاله Introduction: The present study aimed to investigate the microbial quality of the produced vermicomposts and compare them with the existing standards. Methods: This experimental study was conducted as a pilot-scale one, in the laboratory school. some perishable domestic waste were mixed in a reactor, including food waste, vegetables and fruits, cow manure and sludge of wastewater treatment plant. Tests to determine the microbial quality of the product were carried out at an early stage, during the process of production and on the final product. These tests included determining the probable number of fecal coliform bacteria and parasite eggs. Results: According to the results of this study, a significant decrease was observed in the number of fecal coliforms in Sludge manure and domestic waste, as the number of fecal coliforms reduced from 5000000 (MPN / g), in the raw sample to 1500 (MPN / g), eight weeks after the outset. Moreover, according to the obtained results, the mixture of manure, sludge, and domestic waste had some parasite eggs (20 number /gr) in the raw samples. This amount was fully removed by the process of vermicomposting, during the third week. Conclusion: Findings revealed that the earthworms have a high capability to reduce the pathogens without increasing in temperature, however, in order to standardize the number of coliforms (compost class A), the vermicomposting of the mixture of cow manure, domestic waste, and sludge of wastewater treatment plant is not appropriate.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله حسین کریمی | hossein karimi
bsc. environmental science and technology research center, department of environmental health engineering, school of public health, shahid sadoughi university of medical sciences yazd, yazd, iran


اصغر ابراهیمی | asghar ebrahimi
assistant professor, environmental science and technology research center, department of environmental health engineering, school of public health, shahid sadoughi university of medical sciences yazd, yazd, iran


ماهرخ جلیلی | mahrokh jalili
bsc. environmental science and technology research center, department of environmental health engineering, school of public health, shahid sadoughi university of medical sciences yazd, yazd, iran


محمد رضوانی | mohammad rezvani
bsc. environmental science and technology research center, department of environmental health engineering, school of public health, shahid sadoughi university of medical sciences yazd, yazd, iran


مهدی مختاری | mehdi mokhtari
assistant professor, environmental science and technology research center, department of environmental health engineering, school of public health, shahid sadoughi university of medical sciences yazd, yazd, iran
نشانی اینترنتی http://jehsd.ssu.ac.ir/browse.php?a_code=A-10-1-5&slc_lang=en&sid=en
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/1981/article-1981-292556.pdf
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده تخصصی
نوع مقاله منتشر شده پژوهشی
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