Engineering Commons^™

Lagoon Effluent Polishing By Soil Mantle Treatment Using Various Utah Soil Types, Roger Scott Tinkey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

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) …

Examination Of A Non-Point Source Loading Function For The Mancos Shale Wildlands Of The Price River Basin, Utah, Stanley L. Ponce Ii

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

During 1974 and 1975 a diffuse source salinity study was conducted in east-central Utah. The specific objectives of this study were (a) to determine the role of overland flow on salt movement for selected land types, (b) to determine the relative magnitude of surface erosion associated with overland flow and its role in the salt release process, and (c) develop a non-point source loading function to predict salt production from diffuse sources.

The Rocky Mountain Infiltrometer technique was utilized to study the process of overland flow and its relation to salt transport. A reconnaissance survey was made during the 1974 …

A Hydro-Quality Model To Predict The Effects Of Biological Transformations On The Chemical Quality Of Return Flow, V. A. Narasimhan

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A computerized mathematical model has been developed to simulate the system hydrology and water-salinity (as indicated by seven major ions constituting the salt) of a river basin, in which irrigation is the major beneficial water user. The overall system simulation model consists of three submodels: (1) a general hydrologic submodel programmed on a hybrid computer; (2) a chemical submodel to predict the quality of percolated water through the soil profile; and (3) a biological transformation submodel in respect of microbial nitrogen transformations, which is utilized by the chemical submodel. Both the chemical and biological submodels are programmed on a digital …