Modification of the Sedimentation Unit with Continuous Discharges Flow (CDF) as a New Method to Increase Turbidity Removal in Raw Water

This study applies a new method to remove the turbidity of raw water in the sedimentation unit called CDF sedimentation using the working principle of a leaky tank at the bottom of the tank. The test was carried out on a laboratory scale reactor of 240 L/hour for 6 hours consisting of a waterfall co...

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Main Authors: Ridwan Ridwan, Reri Afrianita, Yogi Kurniawan
Format: Article
Language:English
Published: Lembaga Penelitian dan Pengabdian Masyarakat (LPPM), Universitas Andalas 2022-03-01
Series:Andalasian International Journal of Applied Science, Engineering, and Technology
Online Access:https://aijaset.lppm.unand.ac.id/index.php/aijaset/article/view/6
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author Ridwan Ridwan
Reri Afrianita
Yogi Kurniawan
author_facet Ridwan Ridwan
Reri Afrianita
Yogi Kurniawan
author_sort Ridwan Ridwan
collection DOAJ
description This study applies a new method to remove the turbidity of raw water in the sedimentation unit called CDF sedimentation using the working principle of a leaky tank at the bottom of the tank. The test was carried out on a laboratory scale reactor of 240 L/hour for 6 hours consisting of a waterfall coagulation unit for 5 seconds and alum as a coagulant. perforated wall flocculation unit with 30 minutes detention time and 1 hour CDF sedimentation unit. The study was conducted with 4 variations of CDF, namely 0%, 1%, 3%, and 5% with turbidity of 75.25 NTU. The results showed the greater the CDF value, the greater the decrease in turbidity that occurred. The highest level of turbidity removal occurred at 5% CDF value with an efficiency of 91,09%, a correlation value -0,927, and a significance value of 0,00 < 0,05. CDF value gives an influence on Reynolds numbers and Froude numbers in sedimentation units where Reynolds numbers are in the range 65,71-76,75 and Froude numbers 1,96x10-4-2,29x10-4. This shows the Reynolds number and the Froude number will get bigger as the value of the CDF and still matches the design criteria of the laminar. Keywords: The CDF sedimentation, Efficiency, and Turbidity.
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spelling doaj.art-a75fb991a3ac4e8bb4878659c7fcb25e2022-12-22T00:29:27ZengLembaga Penelitian dan Pengabdian Masyarakat (LPPM), Universitas AndalasAndalasian International Journal of Applied Science, Engineering, and Technology2797-04422022-03-01111910.25077/aijaset.v1i1.66Modification of the Sedimentation Unit with Continuous Discharges Flow (CDF) as a New Method to Increase Turbidity Removal in Raw WaterRidwan Ridwan0Reri Afrianita1Yogi Kurniawan2Faculty of Engineering, Universitas AndalasFaculty of Engineering, Universitas AndalasFaculty of Engineering, Universitas AndalasThis study applies a new method to remove the turbidity of raw water in the sedimentation unit called CDF sedimentation using the working principle of a leaky tank at the bottom of the tank. The test was carried out on a laboratory scale reactor of 240 L/hour for 6 hours consisting of a waterfall coagulation unit for 5 seconds and alum as a coagulant. perforated wall flocculation unit with 30 minutes detention time and 1 hour CDF sedimentation unit. The study was conducted with 4 variations of CDF, namely 0%, 1%, 3%, and 5% with turbidity of 75.25 NTU. The results showed the greater the CDF value, the greater the decrease in turbidity that occurred. The highest level of turbidity removal occurred at 5% CDF value with an efficiency of 91,09%, a correlation value -0,927, and a significance value of 0,00 < 0,05. CDF value gives an influence on Reynolds numbers and Froude numbers in sedimentation units where Reynolds numbers are in the range 65,71-76,75 and Froude numbers 1,96x10-4-2,29x10-4. This shows the Reynolds number and the Froude number will get bigger as the value of the CDF and still matches the design criteria of the laminar. Keywords: The CDF sedimentation, Efficiency, and Turbidity.https://aijaset.lppm.unand.ac.id/index.php/aijaset/article/view/6
spellingShingle Ridwan Ridwan
Reri Afrianita
Yogi Kurniawan
Modification of the Sedimentation Unit with Continuous Discharges Flow (CDF) as a New Method to Increase Turbidity Removal in Raw Water
Andalasian International Journal of Applied Science, Engineering, and Technology
title Modification of the Sedimentation Unit with Continuous Discharges Flow (CDF) as a New Method to Increase Turbidity Removal in Raw Water
title_full Modification of the Sedimentation Unit with Continuous Discharges Flow (CDF) as a New Method to Increase Turbidity Removal in Raw Water
title_fullStr Modification of the Sedimentation Unit with Continuous Discharges Flow (CDF) as a New Method to Increase Turbidity Removal in Raw Water
title_full_unstemmed Modification of the Sedimentation Unit with Continuous Discharges Flow (CDF) as a New Method to Increase Turbidity Removal in Raw Water
title_short Modification of the Sedimentation Unit with Continuous Discharges Flow (CDF) as a New Method to Increase Turbidity Removal in Raw Water
title_sort modification of the sedimentation unit with continuous discharges flow cdf as a new method to increase turbidity removal in raw water
url https://aijaset.lppm.unand.ac.id/index.php/aijaset/article/view/6
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AT reriafrianita modificationofthesedimentationunitwithcontinuousdischargesflowcdfasanewmethodtoincreaseturbidityremovalinrawwater
AT yogikurniawan modificationofthesedimentationunitwithcontinuousdischargesflowcdfasanewmethodtoincreaseturbidityremovalinrawwater