Volume 19, Issue 1 (April 2012)                   J Birjand Univ Med Sci 2012, 19(1): 59-69 | Back to browse issues page

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Shahryari T, Barikbin B, Sharifzadeh G, Dorri H. Evaluation of Vali Asr (aj) hospital effluent for irrigation of the green. J Birjand Univ Med Sci. 2012; 19 (1) :59-69
URL: http://journal.bums.ac.ir/article-1-790-en.html
1- Instructor, Department of Public Health, Birjand University of Medical Sciences, Birjand, Iran , shahryaritaher@yahoo.com
2- Health faculty, Birjand University of Medical Sciences, Birjand, Iran.
3- Department of Social Medicine, Birjand University of Medical Sciences, Birjand, Iran.
Abstract:   (18030 Views)

Background and Aim: Recycling of sewage in our country can be one of the ways to overcome the problem of water shortage. The aim of this paper is Evaluation of Valli-e-asr hospital effluent for irrigation of the green. Materials and Methods: During the 12 months of the project since January 2009, twelve samples of the hospital water were selected. 35 samples were taken both from raw sewage and refined effluent with the average frequency of two samples every month. Various physical, chemical, and biological factors were measured on the basis of the standard method book (AWWA). The gathered data was statistically analyzed using SPSS software (version 15) and paired T test at the significant level . Results: The percentages of separating some parameters such as BOD, TSS, COD, and MPS in the exiting effluent were 63.56%, 44.9%, 42.9%, and 89.97% respectively and those of the parameters PH, Mg, SO4, and SAR were 7.52mg/l, 66.82 mg/l, 382.14 mg/l, and 0.54 mg/l respectively. The amount of parameters BOD, COD, TSS, MPN, EC, CL, TDS, and NA% were 165.14mg/l, 887.657mg/l, 784.4286mg/l, 1856857 MPN, 4137.97µs/cm, 999mg/l, 2866.57mg/l, and 75.11% respectively. Conclusion: The sewage refinery of Valli-e-asr hospital does not produce a favorable outcome and some of the parameters of the effluent such as PH, Mg, SO4, and SAR are in accord with the standards of reusing in agriculture and irrigation but many of the necessary parameters do not correspond with the necessary standards for this task.

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Type of Study: Original Article | Subject: Environmental Health
Received: 2011/02/7 | Accepted: 2011/12/28 | ePublished: 2016/03/10

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