Showing 3 results for Abbas Khodabakhshi
Hassan Hashemi, Afshin Ebrahimi , Abbas Khodabakhshi ,
Volume 10, Issue 2 (6-2014)
Abstract
Background: Today, in many countries, wastewater treatment plants effluent is an important part of the renewable water resources. In this case, the effluent quality standards are developed and used is important. The aim of this study was to investigate the potential use of wastewater plants effluent Restricted Irrigation.Methods: In this descriptive - analytical study, samples was collected from the Isfahan wastewater treatment plants effluent. Effluent quality parameters; BOD5, COD, pH, calcium, magnesium, sodium, electrical conductivity, sodium absorption ratio absorption %Na, SAR, boron and chloride were analyzed.Results: Average of BOD5 and COD parameters in both plants was same as environmental standards but does not meet EPA standards. Both Wastewater effluent pH values were in the range of 9-6. Boron concentration and sodium adsorption ratio in the north wastewater treatment plant was good, for irrigation. %Na, chloride concentration and EC was inappropriate. In the south wastewater treatment plant, boron and SAR was at the excellent level. Chloride and EC was permissible, and %Na was good.Conclusion: Based on independent sample t test, there was significant deference between Isfahan North and South wastewater treatment plants (p< 0.05). There was not seen significant deference between effluent quality and standard level in both treatment plants (p>0.05). With proper operation of treatment plants and use of an appropriate disinfection process, the suitable effluent quality for agricultural purposes is provided.
Mansooreh Dehghani, Hassan Hashemi, Malihe Hosainpoor, Abbas Khodabakhshi, Marzihe Karami, Narges Shamsoddini,
Volume 10, Issue 2 (6-2014)
Abstract
Background: Due to the lack of proper rail road and air transportation, most commutes in Iran are carried out by buses. In most cases, the water in the busses is used for passengers for drinking usage. Although this kind of water source has provided convince for the travelers, it could be a great risk in disease outbreak. The aim of this study is to determine the water quality in commuting buses of Shiraz Karandish terminal in winter 2011.Methods: The study is of descriptive-cross-sectional type. 48 samples were collected through quota sampling. In this study, water microbial contamination (total and fecal coliform bacteria) was studied by method using nine-tube fermentation (MPN). The residual chlorine amount, Turbidity, pH and temperature were measured. SPSS software version 11.5 was used for statistical analysis.Findings: Results suggested that 18.75percent of total coliform and 4.17 percent of fecal coliform were positive. The turbidity in 8.3 percent of the cases was at the standard level (0.1-1NTU).Conclusion: Comparing between the results of this research with other studies showed that fecal contamination in bus water fountain of Shiraz was less than fecal contamination in bus water fountain of Kermanshah, Bandar Abbas and Kerman but it was more than Isfahan.
Mansooreh Dehghani , Hassan Hashemi , Tayebeh Abedi, Narges Shamsedini , Abbas Khodabakhshi , Reza Ghasemi ,
Volume 10, Issue 4 (1-2015)
Abstract
