Animal Wastewater Reuse by Levels- A Case Study in Asia Tropical Rainforest Animal Area of Taipei Zoo
Date Issued
2009
Date
2009
Author(s)
Wang, Yu-Chun
Abstract
From 1998 to 2001, the Taipei Zoo water consumption was approximately 1200-1500 thousand tons a year, and the annual cost was more than 10 million New Taiwan Dollars (NTD). Minimizing water usage has become a critical issue of Taipei Zoo. Because most of (60%) the water consumption of Taipei Zoo is used for animal exhibition pools (AEPs), the best way to minimize water consumption is to cut down the water use for animals.errestrial animals distribute all over the world. Different water resources with various water qualities (WQs), e.g. rivers, lakes, ponds, and pools, are used by diversified animals. Based on this fact, the animal wastewater therefore could be divided into several levels and supplied to the exhibition pools for different water-quality demanding animals. This cascade use of water in the overall wastewater reuse scheme is named animal wastewater reuse by levels (AWRLs). The purpose of this study was to establish a feasible animal wastewater reuse scheme –constructing and optimizing AWRLs- which could be utilized in a zoo.hree-level WQs of AWRLs scheme was proposed in this study, and they were determined according to the terrestrial surface water bodies’ standards (TSWBSs), surface water classification and water quality standards (SCWQSs) and river pollution index (RPI) of Taiwan. This first, second and third levels of water were supplied to the high, medium and low water-quality demanding animals, respectively. WQ parameters, pH, DO, COD, NH3-N, turbidity and E. coli were monitored for this study. AWRLs scheme was demonstrated in Asian Tropical Rainforest Animal Area (ATRAA) of Taipei Zoo, named AWRLs-ATRAA system, and was used as a case study to develop a most suitable AWRLs scheme. he results of AWRLs-ATRAA system verified in 2008 showed that AWRLs scheme could successfully apply to the AEPs in ATRAA. AWRLs-ATRAA system which reuse and purify wastewaters was found to be feasible and could economically save 84.7% tap water consumption. This established scheme could further be applied to other zoos, aquariums or even being incorporated into management of agriculture, aquacultures and livestock industries.
Subjects
animal wastewater reuse by levels (AWRLs)
terrestrial surface water bodies’ standards (TSWBSs)
river pollution index (RPI)
animal exhibition pools (AEPs)
Asian Tropical Rainforest Animal Area (ATRAA)
animal wastewater reuse
SDGs
Type
thesis
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