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Comparation of Mono Layer Filter (Sand) Dual Media Filter (Anthracite and Leca) and Performance in Removal of Organic Matter and Turbidity

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Author(s): N Delbazi | M Ahmadi moghadam | A Takdastan | N Jaafarzade haghighi Fard

Journal: Iranian Journal of Health and Environment
ISSN 2008-2029

Volume: 4;
Issue: 3;
Start page: 301;
Date: 2011;
Original page

Keywords: Filter | Anthracite | Leca | Organic Matter | Turbidity

ABSTRACT
Backgrounds and Objectives: Improvement of water quality standards and inability of mono layer filters in producing such quality caused researchers attended to multi layer filters. Due to specific characteristics of anthracite and leca can improve removal of organic materials and Surface over flow rate. The aim of this research was evaluation performance of dual media filters (anthracite/leca) in removing of organic materials and turbidity from Ahvaz Water treatment plant.Materials and Methods: In this study two pilots built for investigation of mono layer filter and dual media filter performance. The researcher used sand in structures media of mono layer filter and composition of anthracite, sand and leca in structures media of dual media filter, respectively.In this study single and dual layer filter pilot examined in term of organic matter and turbidity removal efficiency.Results: Results indicated that removal of organic matter by single layer filter (sand), dual media filter (anthracite and sand), dual media filter (leca and sand) was 7%,12%,4/2% respectively. And also Turbidity removal by single layer filter(sand), dual media filter (anthracite and sand), dual media filter (leca and sand) was also 69%, 80%, 74% respectively.Conclusion: Results of this study showed that upgrading of Single layer to dual layer with anthracite and leca media can‘t show a significant affect in TOC removal.
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