H. Khanum, S. S. Khanam, M. Sultana, Md. Hafiz Uddin, R. C. Dhar, M. Islam
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引用次数: 11
摘要
寄生虫感染是一个全球性的健康问题，特别是在发展中国家。城市污水总是在一定程度上含有寄生原生动物的囊肿。本研究对污水处理厂不同阶段的原生动物寄生虫进行了检测，以检验其效果。在2007-08年度，我们每隔两周从孟加拉国达卡的Pagla污水处理厂的三个地点收集废水。处理厂不同阶段不同时间检出贾第鞭毛虫、内阿米巴原虫、大肠内阿米巴原虫、小内多里马原虫、布氏拟阿米巴原虫和大肠平衡杆菌。其中贾第鞭毛虫和内阿米巴原虫最常见。随着污水处理厂采样点的增加，原生动物寄生虫的患病率和优势度逐渐降低，说明污水处理厂对原生动物寄生虫的减少是有效的，但不足以完全消除它们。DOI: http://dx.doi.org/10.3329/ujzru.v31i0.15372 Univ. j. zool。Rajshahi university . Vol. 31, 2012 pp. 05-08
Protozoan parasites in a wastewater treatment plant of Bangladesh
Parasitic infection is a global health problem especially in developing countries. Municipal wastewaters always contain cysts of parasitic protozoans at some level. The present study was conducted to detect protozoan parasites in different stages of the treatment plant to check its efficacy. Wastewaters were collected from 3 points of the Pagla Sewage Treatent Plant (PSTP) of Dhaka, Bangladesh, throughout the year, 2007-08 at fortnight intervals. Giardia spp., Entamoeba spp., Entamoeba coli , Endolimax nana, Idoamoeba butschlii and Balantidium coli were detected at different times in different stages of the treatment plant. Among these Giardia and Entamoeba spp. were found most frequently than others . Both the prevalence and dominance of protozoan parasites were reduced gradually with the sampling point of the treatment plant which means that the treatment plant was effective in reducing protozoan parasites but not too effective to eliminate them completely. DOI: http://dx.doi.org/10.3329/ujzru.v31i0.15372 Univ. j. zool. Rajshahi Univ. Vol. 31, 2012 pp. 05-08
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