Methodology for the sizing of storage requirements of slow rate land treatment systems using various management options

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Title: Methodology for the sizing of storage requirements of slow rate land treatment systems using various management options
Author: Abtew, Wossenu
Abstract: Slow -rate land application is a means of treating and making beneficial use of wastewater . The cost of treatment of wastewater with the slow -rate system is dependent on the sizing of the storage requirements and the management of the system . Management decisions such as crop selection , choice of cultural practices , leaching scheduling , and water -nutrient application have a direct bearing on sizing of the effluent storage pond . In this study a numerical simulation method is used to develop a logical storage sizing methodology . A statistical method is presented to attach risk of failure and uncertainty involved in the decision making with the sizing of the storage . Stochastic mass balance models are developed to keep track of flow of water , nutrients , and dissolved solids in the sub -systems of the slow -rate system . A stochastic optimization model for maximizing application rate of water and nutrients at all times is formulated and this in return minimizes the need for storage . The role of management decisions on the size of the system and treatment efficiency is evaluated . Nutrient level regulation through aging of wastewater is presented as a means of minimizing pollution .
URI: http : / /hdl .handle .net /2346 /11190
Date: 1989-12

Citation

Abtew, Wossenu Methodology for the sizing of storage requirements of slow rate land treatment systems using various management options. Doctoral dissertation, Texas Tech University. Available electronically from http : / /hdl .handle .net /2346 /11190 .

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