Date of Award:


Document Type:


Degree Name:

Master of Science (MS)


Civil and Environmental Engineering


Robert A. Gearheart


The purpose of this paper is to investigate the effectiveness of four Utah Great Basin soil types in removing particular chemical constituents and select enteric organisms from a sewage lagoon effluent. Sewage taken from the secondary oxidation pond in Logan, Utah was applied daily to lysimeters which allowed samples to be recovered at 7.6 and 38.1 centimeter soil depths. The texture of the soils was the most important physical property affecting their removal capacity. Drainage Farm soil (clay) provided the best bacteriological and overall chemical removal with Nibley (silty clay loam) second, then Draper (sandy loam) and Parleys (silty loam) last.

The soils were analyzed before and after the test period to determine any major change which would ultimately affect their removal capacity. Noticeable changes occurred in phosphorus, percent organic matter and cation exchange capacity. The changes that did occur had no apparent effect on the removal capacity of any of the soil during the test period.

The paper is dividen into three major parts: the bacteriological, the chemical, the initial and final soil comparison.