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Comparison the Effect of Disinfection of Yasuj Sewage Effluent with UV/Paa/Naocl Combined Treatment : A Pilot Plant Study
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SA Sadat   1, MM Amin , A Jamshidi , A Hasani |
| 1- , sadat4335@yahoo. com |
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Abstract: (4676 Views) |
| ABSTRACT:
Introduction & objective: Disinfection of effluent swage treatment plant, is one of the the most important stage of treatment effluent that has been done with purpose of water sources protection or water reuse.Chlorine compounds are the most common disinfectants that have been ever used for this idea.Todays,with attention to the production of dangerous by-products,that can cause by using chlorine compounds in water, other disinfections such as H2o2,paa and uv ,o3 combinations of two or three of them has been stated for replacing items. This study designed to compare the disinfection efficiency of combinations of three common disinfectants mentioned above in pilot plant study.
Materials & Methods: This is an empirical study that was done on sewage effluent of Yasuj wastewater treatment plant in 1387. During sample operations, through 5 months, each 10 days, two sample sets with different concentrations of each disinfectant compound were experimented on determining total coliforms(TC), fecal coliforms(FC), fecal streptococci(FS) according to standard methods for waste water experiments. Reseived data was analysed by SPSS software and ANOVA, statistical test.
Results: This study indicates that combined methods Paa/Naocl/UV, Paa/UV, Naocl/UV, in order from left to right, has the most efficiency in decreasing total coliforms and Paa/Naocl/UV have the most efficiency and UV the least efficiency and Paa/UV, Naocl/UV have the same efficiency in decreasing fecal coliforms. all the combined disinifection methods that have been used in this research most times completely eliminate fecal streptococci from swage of Yasouj wastewater treatment plant.
Conclusion:The result indicate that combined uses of Paa, Naocl, with UV for disinfection sewage effluent make an intensive effect on disinfectant materials over each other and consequently increasing efficiency of this method in deactivation total coliforms, fecal coliforms, fecal streptococci . |
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Full-Text [PDF 121 kb]
(1259 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2015/05/9 | Accepted: 2015/05/9 | Published: 2015/05/9
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