Mudball Analysis
Mudball Analysis
Mudball Analysis
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<strong>Mudball</strong> <strong>Analysis</strong>The Training StationTennessee Association of Utility DistrictsandSE-TACSoutheastern Regional Small Public Water1Systems Technical Assistance Center
<strong>Mudball</strong> <strong>Analysis</strong> - PurposeTo determine the concentrationof mudballs, %To determine the filter’sbackwash efficiency2
<strong>Mudball</strong> <strong>Analysis</strong> - Equipment<strong>Mudball</strong> SamplerNo. 12 (10 Mesh) Sieve5-gal BucketGraduated CylinderPlastic Bags3
<strong>Mudball</strong> <strong>Analysis</strong> – Sampling ProcedureHolding the sampler horizontally……place contents into plastic bag.Repeat the sampling procedure at eachof four other randomly selectedsampling sites.5
<strong>Mudball</strong> <strong>Analysis</strong> – WashingRepeat this processPour portion of sample into sieve…gently raise and…until all of the mediasample is washed.lower sieve into the water…until media has washed through.6
<strong>Mudball</strong> <strong>Analysis</strong> - WashingGently wash any mudballs to oneside….7
<strong>Mudball</strong> <strong>Analysis</strong> – WashingFill graduated cylinder to 200 mL…Transfer any mudballs to cylinder…Record new volume on cylinder…8Calculate mudball volume.
Sample Volume, galTable of Data Diameter = 3 in Depth = 6 inn = 5(0.785) (3in) (6 in)Sample Volume, gal =3231 in/gal2X5(0.785) (9 in ) (6 in)Sample Volume, gal =3231 in/gal211.95 inSample Volume, gal =3231 in /gal23X5Sample Volume, gal = 0.917532467 or 0.92 gal9
<strong>Mudball</strong> Volume, %<strong>Mudball</strong> Volume, %L=⎛Fi FinalCylinderInitialCylinder⎞⎜−⎟⎝ Reading, mL Reading, mL ⎠Sample Volume, mLX100%Table of DataFinal Cylinder Reading = 222 mLInitial Cylinder Reading = 200 mLSample Volume, mL = 3,482 mL<strong>Mudball</strong> Volume, mL =( 222 mL - 200 mL)3,482 mL22 X 100%<strong>Mudball</strong> Volume, mL =3,4822,200%<strong>Mudball</strong> Volume,mL=3,482<strong>Mudball</strong> Volume, mL = 0.63182079 2 orX0.63%100%11
InterpretationPercent <strong>Mudball</strong>s<strong>Mudball</strong> <strong>Analysis</strong>Filter Condition0.0 to 0.1 Excellent01 0.1 to 02 0.2 Very Good0.2 to 0.5 Good0.5 to 1.0 Fair1.0 to 2.5 Fairly Bad2.5 to 5.0 BadOver 5.0Very Bad12
The Training StationTennessee Association of Utility DistrictsP.O. Box 2529Murfreesboro, Tennessee 37133-2529VOICE: 615.896.90229022FAX: 615.898.8283www.taud.org13
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