تعیین وجود انگل در فاضلاب خام شهری بوسیله روش بیلنجر در کرمانشاه، ایران

عنوان انگليسی

Determining Parasite Presence in Raw Municipal Wastewater by Bailenger Method in Kermanshah, Iran

خلاصه انگلیسی

The aim of this study is to measure the parasite presence in treated and raw sewage by Bailenger method. All the samples were gathered from the influent and effluent of six wastewater treatment plants on a weekly basis in the period of 6 months. Totally, 180 samples were analyzed by microscopy using the modified Bailenger method. The results indicated that the average number of helminth egg and protozoan cysts per liter of raw sewage in Kermanshah, Sarpol-e-Zahab, Paveh, Ghasr-e-Shirin, Islam Abad-e-Gharb, and Gilan-e-Gharb treatment plants was 5.27, 53.41, 45.72, 35.85, 39.94, and 44.8 n/l as well as 30.1, 21.93, 25.42, 19.95, 18.1, and 15.61 n/l, respectively. Also, the highest number of helminth eggs including Ascaris lumbricoides and Hymenolepis nana was observed in the raw sewage of all the treatment plants. Thus, improvements in wastewater treatment, lack of reusing raw sewage for agricultural development, and encouraging the public to apply proper disinfection method for vegetables could be recommended for decreasing parasitic infection in the society.

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