Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 4 of 4 for “"drain field"”.
-
The effect of three holding tank chemicals on anaerobic wastewater treatment
… oxygen demand (COD) was evaluated. Potential drain-field failure was the concern that led to the selection of TSS and COD. Drain-field failure could result from high solids carry-over or from a high concentration of COD in the effluent which would promote excessive bio-mat growth and clog the …
-
Changes in Septic Tank Effluent Due to Water Softener Use
… from septic tanks, leading to shortened lives of drain fields. Additionally, the release of regeneration discharges to the septic tank might further damage performance. This study was undertaken to investigate the effect home ion-exchange softeners have on septic tank performance. A column study …
-
New approaches to scaled-up carbon nanotube synthesis and nanotube-based metal composites and sensors
… SWNTs contacted by Cr/Au pads as source and drain field effect transistor components for the monitoring of NO_2 vapors. The adsorption of an electron donating gas such as NO_2 on the SWNT sidewalls shifts the Fermi level of the p-type semiconducting nanotubes, consequently changing their …
-
The Spatial Relationship Between Septic System Failure and Environmental Factors in Washington Township, Marion County, Indiana
Underground septic systems thrive or fail based on the relationship with their local environment. This paper explores ways environmental variables such as soil type, tree roots, degree of slope, and impervious surfaces affect on-site wastewater treatment systems. It also discusses the effects each …