a study on the performance of limestone roughing filter - ePrints@USM

2.10 Removal Capabilities of Roughing Filter 24
2.10.1 Turbidity Removal in roughing Filter 24
2.10.2 Suspended Solids Removal in Roughing Filter 26
2.10.3 Coliform Organisms Removal in Roughing Filter 28
2.10.4 Biochemical Oxygen Demand Removal in Roughing Filter 29
2.11 Limestone as Filter 30
2.11.1 Treatment of Acid Mine Drainage Using Limestone 30
2.11.2 Treatment of Heavy Metals Using Limestone 31
2.11.3 Treatment of Leachate Using Limestone 32
2.11.4 Limestone as Filter Media in Roughing Filter 33
2.11.4.1 pH Changes and its Effects on Limestone Roughing 34
Filter
2.11.4.2 Dissolved Oxygen Changes and its Effects on
35
Limestone Roughing Filter
2.12 Advantages of Using Limestone as Filter Media in Roughing Filter 36
2.13 Reviews on Roughing Filter Efficiency 36
2.14 Conclusion 39
CHAPTER 3 : MATERIALS AND METHODS
3.0 Introduction to Materials Method 40
3.1 Characterization of Limestone 40
3.1.1 Sieve Analysis of Limestone Filter Media 40
3.2 Sampling of Waste water 41
3.3 Experimental Setup 42
3.4 Experimental Procedure 43
3.4.1 Effect of Filter Media Size and Flow Rate on Removal 43
3.4.2 Effect of Filter Run Time on Removal 46
3.5 Methods of Analysis 47
3.5.1 Measurement of Turbidity 47
3.5.2 Measurements of Total Suspended Solids 49
3.5.3 Measurement of pH 49
3.5.4 Measurement of BOD 5 50
3.5.5 Most Probable Number (MPN) Test 52
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