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1	EFFECTS OF PROPYLENE GLYCOL INDUCED BIOGROWTH ON HYDRAULIC CONDUCTIVITY AND DISPERSIVITY OF A TWO-DIMENSIONAL HETEROGENEOUS POROUS MEDIA Presented by Jessica Murphy Clarkson University Advisor: Dr. Angela Bielefeldt Summer 2002
2	Key Terms
3	Project Introduction Ground Water Flow Tank Dimensions 4 Boxes of Heterogeneity Propylene Glycol Injection
4	Tank Pictures
5	Testing Methods Hydraulic Conductivity Hydraulic Conductivity Darcy’s Law Q=K(dh/dl)A Flowrate Heads Distances Saturation Heights
6	Testing Methods Propylene Glycol Analysis Propylene Glycol Analysis Chemicals Spectrophotometer Photometric
7	Testing Methods Volatile Suspended Solids Volatile Suspended Solids Effluent Water Filtration 105 C Drying 530 C Burning
8	Testing Methods Bromide Analysis Bromide Analysis Bromide Food Coloring Ion Selective Probe
9	Results Hydraulic Conductivity Hydraulic Conductivity Darcy’s Law Q=K(dh/dl)A Heads Flowrate Time
10	Results Hydraulic Conductivity
11	Results Propylene Glycol Analysis Propylene Glycol Analysis Anticipated Concentrations Lowers then stabilizes Spike on 19^th and 23^rd
12	Results Volatile Suspended Solids Volatile Suspended Solids Anticipated Data Increasing Areas of Interference July 12, 19, 23
13	Results Bromide Analysis Bromide Analysis
14	Results Volatile Solids Volatile Solids 75-90% Bugs Bug Concentration Peaks Heterogeneous Areas
15	Results Extracellular Polymeric Substances Extracellular Polymeric Substance Analysis 10-25% Film
16	Conclusions Microbial Growth is Effected by Change in Void Volume Changes in Conductivity Decreases Changes in Dispersivity Changes in Flow Pattern
17	Are There Any Questions?