List of Articles دترجنت

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  1 - Survey of amount of removed detergents and organic Materials of hospital wastewater with SBR developed method (case study of Yazd city)
  Bahman Banaiy Ghahfarrokhi Mohamad hassan Ehramposh Parvin Nasiri Asghar Ghasemee Reza Rezaee Javanmardi
  Introduction: There are many different methods for waste water treatment such as Physical, Chemical and Biological and activated sludge process. The most significant aims of waste water treatment include controlling of environmental pollutions, protecting of concinnity More

  Introduction: There are many different methods for waste water treatment such as Physical, Chemical and Biological and activated sludge process. The most significant aims of waste water treatment include controlling of environmental pollutions, protecting of concinnity of environment and controlling of infectious diseases. Among different type of waste water in a society, hospitals’ waste water are very important because of carrying various type of harmful, pathological and infectious micro-organisms and elements. One the harmful elements are detergents which are counted as biological pollutant in biological waste water treatment process. This research was carried out to eliminate detergents and organic material from hospitals’ waste water through developed SBR method with the aim of expressing of designing parameter and improved SBR potential process in order to use in waste water treatment process in hospitals. Methods: This research is experimental - applied study. At first pilot of advanced system was designed which was carried out in a period of 4 months. To chemical analyses 20 waste water samples were taken out from input and output pilot water and BOD, COD, SVI. MLVSS, SVI and detergents parameters were measured according to the suggested standard methods. Results: results in this research indicated that removal percentage of BOD is %95.54, COD%92.97, detergent 84.995 and average rate of mlss is 4327.65 mg/l, mlvss3172.05 mg/l and volume index 113.97 mg/l SVI obtained and average rate of F/M  in this system was 0.0865BOD/kg mlss.d. Conclusion: according to the results obtained from advanced SBR it could be said this method of process treatment has high standard of flexibility against organic and hydraulic shock and was capable to remove BOD, COD and detergents and also it can process the output standards. Also low volume of established sludge and low growth of sulfa bacteria are advantages which cause use of this system in industrial waste waters treatment and competes with other methods of waste water treatment which is an economical and money saving method Manuscript profile
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  2 - Investigation of Fenton Reagent Efficiency in Removal of Cetyl Trimethyl Ammonium Bromide from Synthetic Solution
  Mohammad Reza Samarghandi Mansor Zarrbi
  Industrial and municipal wastewaters are the main sources which contaminate  the surface water and groundwater. Application of detergent in industrial and domestic uses increases this substance in wastewater. Detergents are large organic molecules that are slightly More

  Industrial and municipal wastewaters are the main sources which contaminate  the surface water and groundwater. Application of detergent in industrial and domestic uses increases this substance in wastewater. Detergents are large organic molecules that are slightly soluble in water, highly toxic, responsible for foaming in wastewater treatment plants and making interference with wastewater treatment operations. A numorous methods yet have been applied for the removal of detergent. These methods include coagulation and flocculation, reverse osmosis, oxidation by ozone and advanced oxidation processes. This study investigates the removal of cetyl trimethyl ammonium bromide from synthetic solution by Fenton reagent as an easy and effective method. Experiments were conducted in several stages with 100 cc of synthetic sample and pH=4, 5, 10, 15 and 20 mg/L of ferrous ions, 20, 30, 40 and 50 ml/L of hydrogen perocide in a batch reactor with contact time of 20, 40 and 60 min. Results showe that, in a batch system with acidic pH (pH=4), the removal of detergent increases with the increases of contact time, ferrous ions concentration and hydrogen peroxide. Therefore, in pH= 4, contact times of 60 min, and 20 mg/L of ferrous ions, Lthe  removal efficiency increased from 54/5% to 89/5% by increase of hydrogen peroxide conventration from 20 ml/L to 50 ml/L. Finally, considering the simplicity and effectiveness of this method, it is be suggested to be used for the removal of detergent from municipal and industrial wastewaters. Manuscript profile
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  3 - Comparative effects of water application, detergent and some new acaricides on fig mite (Eotetranychus hirsti Pritchard & Baker)
  J. Shakarami S. Khorshidvand M. Arbabi A. Rezaei nejad
  Eotetranychus hirsti Pritchard & Baker is one of the most important pests in Pol-e-Dokhtar, Lorestan provice, Iran, the area where fig is extensively cultivated. In this research we aimed to study the control effects of the following treatments on the pest: one time More

  Eotetranychus hirsti Pritchard & Baker is one of the most important pests in Pol-e-Dokhtar, Lorestan provice, Iran, the area where fig is extensively cultivated. In this research we aimed to study the control effects of the following treatments on the pest: one time application of water, two times application of water, one time application of detergent, two times application of detergent and application of envidore, oberon and Floramite. The experiment was conducted based on a randomized complete block design with four replications. Correct mortality was measured and calculated on after 3, 7, 14 and 29 day from the time of application. Results showed significance differences among treatments in all times of measure. One time application of detergent showed 78.21%, 56.63%, 50.31% and 40.03% mortalities on 3, 7, 14 and 29 day from the time of application, respectively. The mortality of mite treated two times with detergent on day 29 was 92.54% which show not significantly different from those treated with acaricides. Moreover, one time application of water showed 47.32%, 25.33%, 23.37% and 19.77% mortalities of mite on 3, 7, 14 and 29 day from the time of application, respectively. The mortality of mites treated two times with water on 29 day was 62.21%. The population of the pest in trees treated with acaricides was about zero at all times of measure. The results of this research revealed that some more environment friendly methods, i.e. application of water or detergent, could decrease the population of fig mite. Therefore, considering their less effects on natural enemies of the pest, these methods could be recommended for integrated pest management. Manuscript profile