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:: Volume 12, Issue 2 (Quaterly 2008) ::
Feyz 2008, 12(2): 23-27 Back to browse issues page
Assessing the effect of chemical coagulation and lime addition in upgrading the quality of effluents of stabilization ponds of Kashan University of Medical Sciences
Mohammad Bagher Miranzadeh *, Gholam Reza Mostafaei
, miranmn@yahoo.com
Abstract:   (9581 Views)

Background : Pending solids concentration and turbidity are the main drawbacks of waste water stabilization ponds used in hot climates for sewage treatment to reuse effluent. The effectiveness of chemical coagulation and lime addition in upgrading the ponds effluent quality is the purpose of this study.

Materials and Methods : The e ffects of three coagulants including Alum, Ferric sulfate, and Ferric chloride and Lime with variable dosages on suspended solid and turbidity were studied in Kashan University of Medical Sciences living compounds stabilization ponds during the summer 2005. Data were analyzed using Jar test.

Results: F erric sulfate 20 mg/ldosage reduced suspended soil concentration from 215 to 11.8 mg/ land turbidity from 189 to 14.9 NTU (Nephelometric Turbidity Unit). Maximum TSS (Total Suspended Solid) and turbidity removal was 94.5 % and 92.1 %, respectively .

Conclusion: Chemical coagulation can efficiently upgrade the ponds effluent quality compared with Iranian organization of environmental health standards (TSS and turbidity less than 100 mg/land 50 NTU).

Keywords: Lime, Quality control, Reuse, Sewage, Stabilization pond
Full-Text [PDF 131 kb]   (2072 Downloads)    
Type of Study: Research | Subject: General
Received: 2008/12/22
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Miranzadeh M B, Mostafaei G R. Assessing the effect of chemical coagulation and lime addition in upgrading the quality of effluents of stabilization ponds of Kashan University of Medical Sciences. Feyz. 2008; 12 (2) :23-27
URL: http://feyz.kaums.ac.ir/article-1-634-en.html


Volume 12, Issue 2 (Quaterly 2008) Back to browse issues page
مجله علمی پژوهشی فیض ::: دانشگاه علوم پزشکی کاشان KAUMS Journal ( FEYZ )
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