Chapter
Apr 26, 2012

Zero-Discharge Treatment System for the Wastewater from Scenic Environmental Sensitive Communities

Publication: World Environmental and Water Resources Congress 2008: Ahupua'A

Abstract

The "Zero-Discharge" Wastewater Treatment System has been advocated for the scenic and/or historically preserving tourism spots. The Decentralized Wastewater Treatment (DWT) coupled with the Land Treatment Method has been found to be the most effective treatment system to achieve such historically unachievable "Zero-Discharge" dream. The DWT, normally also referred as aerobic onsite or clustered wastewater treatment system, is installed to provide efficient treatment for group of residential dwellings and businesses in sparsely distributed community. It has been reported that the performance of commercially manufactured DWT is adequate in some cases but its reliability is questionable. In reality, the roots of its lack of reliability, is caused by the inappropriate handling and disposal of treated effluent. The objective of this paper is to present an innovative sustainable design approach for DWT based on extended aeration principles and complete effluent utilization by land treatment. The integrated design approach, presented herein, has also incorporated the following considerations: environmental sustainability, protection against the contamination of surrounding environment, commercial viability, minimum maintainability, and the minimum amount of sludge production. Engineering design details for both DWT's with and without separate settling basin in compliance with the current regulatory requirements have been developed and will be presented. In order to illustrate the applicability of developed self-sustainable designs, real world examples will also be presented.

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Go to World Environmental and Water Resources Congress 2008
World Environmental and Water Resources Congress 2008: Ahupua'A
Pages: 1 - 8

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Published online: Apr 26, 2012

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C. S. Rocky Shih [email protected]
University of Texas at San Antonio, Civil & Environmental Engineering Department, 6900 NW Loop 1604, San Antonio, Texas, 78249. E-mail: [email protected]
Michael W. Thomas
No affiliation information available.
King Engineering Associates, Inc., 2211 S. IH-35, Suite 200 Austin, Texas, 78758 and University of Texas at San Antonio, Civil & Environmental Engineering Department, 6900 NW Loop 1604, San Antonio, Texas, 78249. E-mail: [email protected] and [email protected]

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