دورية أكاديمية
Optimization of lactic acid fermentation for pathogen inactivation in fecal sludge.
| العنوان: | Optimization of lactic acid fermentation for pathogen inactivation in fecal sludge. |
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| المؤلفون: | Odey EA; School of Energy and Environmental Engineering, Beijing Key Laboratory of Resource-Oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Xueyuan 30, Beijing 100083, PR China. Electronic address: lordodey1@yahoo.com., Li Z; School of Energy and Environmental Engineering, Beijing Key Laboratory of Resource-Oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Xueyuan 30, Beijing 100083, PR China. Electronic address: zifuli@ces.ustb.edu.cn., Zhou X; School of Energy and Environmental Engineering, Beijing Key Laboratory of Resource-Oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Xueyuan 30, Beijing 100083, PR China., Yan Y; School of Energy and Environmental Engineering, Beijing Key Laboratory of Resource-Oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Xueyuan 30, Beijing 100083, PR China. |
| المصدر: | Ecotoxicology and environmental safety [Ecotoxicol Environ Saf] 2018 Aug 15; Vol. 157, pp. 249-254. Date of Electronic Publication: 2018 Apr 04. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Country of Publication: Netherlands NLM ID: 7805381 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1090-2414 (Electronic) Linking ISSN: 01476513 NLM ISO Abbreviation: Ecotoxicol Environ Saf Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Amsterdam, Netherlands : Elsevier |
| مواضيع طبية MeSH: | Fermentation* , Sanitation*, Lactic Acid/*metabolism , Sewage/*microbiology, Bioreactors ; Feces/microbiology ; Flour ; Lactobacillus ; Manihot ; Oryza/microbiology |
| مستخلص: | The efficiency of lactic acid fermentation (LAF) as a pretreatment for human feces was investigated in laboratory-scale experiments that lasted for 3 weeks. The sanitization effect of LAF on fecal sludge (FS) was conducted in triplicate. This study used three materials, namely, lactobacillus of lactic acid bacteria, fermented cassava flour, and fermented rice flour, which were known to enhance the production of lactic acid. Each material was mixed in three different reactors at equal ratio with raw FS (i.e., 1:1 v/w, w/w, and w/w). The pH decline rate, lactic acid production rate, and fecal coliform suppression degree were monitored over the period of the treatment process as parameters to evaluate the efficiency of various LAF for pathogen inactivation in FS. Results showed that only fermented rice flour was able to completely inactivate the indicator organism (fecal coliform) at the end of fermentation. Final plate counts of 8.6 × 10 8 CFU/100 mL, 2.4 × 10 8 CFU/100 mL, and zero (0) were achieved from lactobacillus, fermented cassava flour, and fermented rice flour treatment processes, respectively. The final pH from the reactors that contained lactobacillus and FS, cassava flour and FS, and fermented rice flour and FS were 5.5, 8, and 3.9, respectively. This study revealed that not all LAF materials can effectively suppress pathogens in FS. The results serve as the foundation in developing an effective, cheap, and easy to use LAF on FS pretreatment for pathogen inactivation. (Copyright © 2018 The Authors. Published by Elsevier Inc. All rights reserved.) |
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| فهرسة مساهمة: | Keywords: Fecal coliform; Fecal sludge; Fermented cassava flour; Fermented rice flour; Lactic acid fermentation; Lactobacillus |
| المشرفين على المادة: | 0 (Sewage) 33X04XA5AT (Lactic Acid) |
| تواريخ الأحداث: | Date Created: 20180407 Date Completed: 20180731 Latest Revision: 20210109 |
| رمز التحديث: | 20240628 |
| مُعرف محوري في PubMed: | PMC5939949 |
| DOI: | 10.1016/j.ecoenv.2018.03.075 |
| PMID: | 29625399 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1090-2414 |
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| DOI: | 10.1016/j.ecoenv.2018.03.075 |