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Evaluation of Occurrence, Concentration, and Removal of Pathogenic Parasites and Fecal Coliforms in Three Waste Stabilization Pond Systems in Tanzania
المؤلفون المشاركون
Zacharia, Abdallah
Ahmada, Wajihu
Outwater, Anne H.
Ngasala, Billy
Van Deun, Rob
المصدر
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-10-23
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الطب البشري
تكنولوجيا المعلومات وعلم الحاسوب
الملخص EN
In Tanzania, waste stabilization ponds (WSPs) are employed to treat wastewater, and effluents are used for urban agricultural activities.
The use of untreated or partially treated wastewater poses risks of disease transmission, including parasitic and bacterial infections, to exposed communities.
Little is known about the occurrence, concentration, and removal of parasites and fecal coliform (FC) bacteria in WSPs in Tanzania.
This study evaluates the occurrence and concentration of parasites and FCs in wastewater, the efficiency of WSPs in removing parasites and FCs, and the validity of using FCs as an indicator of parasites.
This was a cross-sectional study conducted between February and August 2018.
Wastewater samples were collected from three WSPs located in the Morogoro, Mwanza, and Iringa regions.
APHA methods were used to test physicochemical parameters.
The modified Bailenger method and Ziehl–Neelsen stain were used to analyse parasites.
Membrane filtration method was used to analyse FCs.
Data were analysed using IBM SPSS version 20.
Helminth egg removal ranged from 80.8% to 100%.
Protozoan (oo)cyst removal ranged from 98.8% to 99.9%.
The Mwanza WSP showed the highest FC reduction (3.8 log units (100 mL)−1).
Both the parasites and FCs detected in the effluents of assessed WSPs were of higher concentrations than World Health Organization and Tanzania Bureau of Standards limits, except for helminths in the Morogoro WSP and FCs in the Mwanza WSP.
FCs were significantly correlated with protozoa (p<0.01) and predicted protozoa occurrence well (p=0.011).
There were correlations between physicochemical parameters, parasites, and FC bacteria in the WSP systems.
Inadequate performance of these systems may be due to lack of regular maintenance and/or systems operating beyond their capacity.
FC indicators were observed to be a good alternative for protozoa monitoring, but not for helminths.
Therefore, during wastewater quality monitoring, helminths should be surveyed independently.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Zacharia, Abdallah& Ahmada, Wajihu& Outwater, Anne H.& Ngasala, Billy& Van Deun, Rob. 2019. Evaluation of Occurrence, Concentration, and Removal of Pathogenic Parasites and Fecal Coliforms in Three Waste Stabilization Pond Systems in Tanzania. The Scientific World Journal،Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1211825
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Zacharia, Abdallah…[et al.]. Evaluation of Occurrence, Concentration, and Removal of Pathogenic Parasites and Fecal Coliforms in Three Waste Stabilization Pond Systems in Tanzania. The Scientific World Journal No. 2019 (2019), pp.1-12.
https://search.emarefa.net/detail/BIM-1211825
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Zacharia, Abdallah& Ahmada, Wajihu& Outwater, Anne H.& Ngasala, Billy& Van Deun, Rob. Evaluation of Occurrence, Concentration, and Removal of Pathogenic Parasites and Fecal Coliforms in Three Waste Stabilization Pond Systems in Tanzania. The Scientific World Journal. 2019. Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1211825
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1211825
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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