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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Copyright
© 2008 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
ASCE Technical Topics:
- Aerobic processes
- Architectural engineering
- Biological processes
- Building management
- Business management
- Coupling
- Effluents
- Environmental engineering
- Historic preservation
- Infrastructure
- Pollution
- Practice and Profession
- Recreation
- Soil pollution
- Soil treatment
- Structural engineering
- Structural members
- Structural systems
- Sustainable development
- Tourism
- Urban and regional development
- Waste management
- Wastewater management
- Wastewater treatment
- Water (by type)
- Water and water resources
- Water management
- Water treatment
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