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Development of a mobile process to extract phosphorus from livestock wastes as a valuable fertilizer

Creator:

Hoilman, Gene

Abstract:

Environmental and regulatory concerns are causing confined animal feeding operations (CAFO's) to account for phosphorous content when applying wastewater to agricultural fields for disposal. In most cases this requires more land to spread the waste onto so that the phosphorous needs of the crop are not exceeded. A mobile process...

Resource Type:

Masters Thesis

Full Text:

marketability of the product as a fertilizer. ©Copyright by Gene Hoilman June 6, 2003 All Rights
Microbial Electrolysis Cells for the Production of Hydrogen Gas : Evaluation of Internal Resistance and Design for Scale-Up

Creator:

Miller, Andrew G.

Abstract:

Modification of microbial electrolysis cells (MECs) by altering the sizes of the anode and the cathode, or their interaction with the liquid stream affects the performance of the MEC, but it remains difficult to quantify how much each change will contribute to the overall performance. Through this study, a method...

Resource Type:

Masters Thesis

Full Text:

two very different roles: as a mechanism for recovering unused energy from waste streams while
An ammonia stripping and recovery system for animal wastewaters

Creator:

Crown, Julia K.

Abstract:

Traditionally, livestock operations were small and combined with cropping operations. This allowed farms to be self-sustaining because nutrients were constantly recycled on the farm. Since the Haber-Bosch chemical process was patented, crop farmers turn to industrial fertilizers when soils nutrients are depleted. Animal and plant operations diverged, functionally separated, and...

Resource Type:

Masters Thesis

Full Text:

great quantities, as in fertilizer runoff, a great growth of biological material, such as algae in