APPLICATION OF MULTI-STAGE INCLINED TUBE SETTLERS FOR WATER TURBIDITY REMOVAL

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SHEVIDI ABBAS; AZIMI ALI AKBAR; NABI BIDHENDI GHOLAMREZA; FAZELI MOJTABA; ASADOLLAHFARDI GHOLAMREZA

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Journal: WATER AND WASTEWATER Year:2011 | Volume:22 | Issue:1 (77) Page(s): 12-22

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Title

APPLICATION OF MULTI-STAGE INCLINED TUBE SETTLERS FOR WATER TURBIDITY REMOVAL

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Keywords

WATER TREATMENTQ2

SEDIMENTATIONQ2

MULTI-STAGE TUBE SETTLERQ3

COAGULATIONQ3

TURBIDITYQ2

Abstract

The efficiency of particle settling in tube settlers can be improved by reducing tube diameter; however, this has limits due to the clogging at low diameters. In this study, effect of reduced tube diameters on enhanced efficiency of tube settlers was investigated. This improvement was achieved by staging of the operation and reducing tube diameter in the last stage of the MULTI-STAGE TUBE SETTLERs. Theoretical analysis indicated that the efficiency of tube settlers would improve if tube settlers were used in different stages in series and that if their diameter was reduced in the last stage. The predictions from the theoretical analysis were tested in a pilot study.One- and two-stage tube settler pilot plants were used to remove water TURBIDITY caused by clay in the first and second phases of tests with and without adding coagulant, respectively. The tube diameter in the one-stage tube settler were 5.0 cm, and those in those the first and second stages of the two-stage tube settler was 5.0 and 1.2 cm, respectively. The results of both phases showed that the two-stage tube settler was more efficient than the one-stage for TURBIDITY removal with no clogging observed because the majority of the particles had been removed in the first stage.

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APA: Copy

SHEVIDI, ABBAS, AZIMI, ALI AKBAR, NABI BIDHENDI, GHOLAMREZA, FAZELI, MOJTABA, & ASADOLLAHFARDI, GHOLAMREZA. (2011). APPLICATION OF MULTI-STAGE INCLINED TUBE SETTLERS FOR WATER TURBIDITY REMOVAL. WATER AND WASTEWATER, 22(1 (77)), 12-22. SID. https://sid.ir/paper/103520/en

Vancouver: Copy

SHEVIDI ABBAS, AZIMI ALI AKBAR, NABI BIDHENDI GHOLAMREZA, FAZELI MOJTABA, ASADOLLAHFARDI GHOLAMREZA. APPLICATION OF MULTI-STAGE INCLINED TUBE SETTLERS FOR WATER TURBIDITY REMOVAL. WATER AND WASTEWATER[Internet]. 2011;22(1 (77)):12-22. Available from: https://sid.ir/paper/103520/en

IEEE: Copy

ABBAS SHEVIDI, ALI AKBAR AZIMI, GHOLAMREZA NABI BIDHENDI, MOJTABA FAZELI, and GHOLAMREZA ASADOLLAHFARDI, “APPLICATION OF MULTI-STAGE INCLINED TUBE SETTLERS FOR WATER TURBIDITY REMOVAL,” WATER AND WASTEWATER, vol. 22, no. 1 (77), pp. 12–22, 2011, [Online]. Available: https://sid.ir/paper/103520/en

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