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M Khoobdel, M Shayeghi, S.m.a Seyedi Rashti, S Tirgari,
Volume 7, Issue 3 (10-2009)
Abstract

Background and Aim: Some medically important species of Muscidae and Fanniidae families are among synanthropic flies and can be seen in human habitats therefore they can be mechanical vectors of different pathogenic microorganisms. Identification and determination of species of these flies is essential for any control program planning. This study was conducted to determine the faunal diversity of Muscidae and Fanniidae flies in Tehran, Iran.

Methods and Materials: This was a cross-sectional descriptive and taxonomic study, conducted in 2 phases, during 1996-97 (pilot study) and 2000-2002 (complementary study) in Tehran and suburbs. Medically important flies were captured and identified. A net-hashing was used to capture adult flies by the direct observing method. To determine the fauna of flies in different habitats, 4 biotopes, including corpse (human, birds, livestock), garbage and decaying organic matter, animal carcasses, and human indoor habitat, were selected. Big hashing nets (95 cm in diameter) were used for capturing adult flies.

Results: A total of 2418 adult flies belonging to 8 families of Muscidae, Fanniidae, Calliphoridae, Sarcophagidae, Tachinidae, Syrphidae, Conopidae, and Anthomyiidae were captured. Among these, 1279 belonged to the Muscidae and Fanniidae families. Four genera and 5 medically important species were identified from two families.

Conclusion: Based on the existing scientific documentation, 2 species of M. stabulans and F. scalaris are reported for the first time from Iran. However, M. stabulans is a common species, the presence of which in Iran seemed probable.


Mohammad Malakoutian, Alireza Mesdaghi Nia, Shima Rezaei,
Volume 12, Issue 2 (10-2014)
Abstract

  Background and Aim: Chlorophenols are acidic Organic compounds and priority Pollutants. One of the best ways to removal chlorophenols was using different absorbents . In this study, removal efficiency of ortho- chlorophenol as one of the most common organic contaminants in aquatic environments was investigated with absorption method using activated Fly Ash.

  Materials and methods: In this experimental study, Fly ash of collected from Zarand Power plant was activated by sulfuric acid. Factors affecting in sorbent activation process including temperature, time, amount and concentration of the acid and also factors influencing in the adsorption process were adjusted for optimum conditions. Experiments was followed on real wastewater samples from coal washing plant of zarand . Data was analyzed by SPSS software.

  Results : The sorbent activation was performed in optimized condition acid concentration 1.8 mM, time 5h, temperature 29±2˚C and acid/fly ash ratio 7. Removal efficiency of zarand coal washing plant Effluent at the optimal conditions (pH: 2, adsorbent doze: 1g, time: 3h) was 84.4%.

  Conclusion: In addition to the high efficiency of ortho-chlorophenol absorption because of sorbent activation does not require complex and expensive technology, the adsorbents can be used to remove these contaminants from industry effluent.



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