Performance evaluation of wastewater stabilization ponds in Yazd-Iran
Publish Year: 1393
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_EHEM-1-1_002
تاریخ نمایه سازی: 15 شهریور 1395
Abstract:
Background: Yazd waste stabilization pond facilities consist of three stabilization pond systems, module 1, module 2 and module 3 that AWSP module 1 has started its operation. The existing facilities have had several problems in their operation. The objectives of this research were to evaluate the performance of stabilization ponds in wastewater treatment of the city of Yazd, due to several problems in their operation, and to prepare a scheme of its upgrading, if necessary.Methods: During the period from December to June 2010, data analysis were carried out for both raw and treated wastewater.Results: Results of these investigations showed that the average effluent concentrations of Biochemical Oxygen Demand 5 (BOD5), Chemical Oxygen Demand (COD) and Suspended Solid (SS) taken from anaerobic pond and secondary facultative ponds of module 1 were 306.9, 135.18, 139.75 and 136.75, 69.025, 136.5 mg/L, respectively.Conclusion: These results indicated that the effluent of the anaerobic pond of module 1 was complied with the Iranian treated wastewater standards for agricultural reuse in terms of BOD5 and COD concentrations; hence the secondary facultative ponds could be changed to other primary facultative ponds in order to increase the capacity of wastewater treatment plant.
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Authors
Mahdi Farzadkia
Associate Professor, Department of Environmental Health Engineering, Iran University of Medical Sciences, Tehran, Iran
Mohammad Hassan Ehrampoush
Professor, Department of Environmental Health Engineering, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Shahram Sadeghi
MSc Student, Environmental Health Engineering, Student Research Committee, Kurdistan University of Medical Sciences, Sanandaj, Iran
Majid Mermani
Assistant Professor, Department of Environmental Health Engineering, Iran University of Medical Sciences, Tehran, Iran