Water Purification Performance and Cost-Benefit Analysis of a Small Scale Commercial Aquaponic Farm

• Main Authors: LAI, YAN-JIE, 賴彥潔
• Other Authors: CHIEN, YU-LAN
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/h9qjm4

碩士 === 國立臺北大學 === 自然資源與環境管理研究所 === 105 === The Aquaponics study in the literature is focused on the water quality testing of the experimental system (single fish and single vegetable), and recommends the most suitable pattern of Aquaponics. The study is a case study, using the seasonal Mann Kendall test commercial Aquaponics water quality purification effect. Results indicate that the suspended solid concentration of commercial Aquaponics system at each sampling point is stable, but the total phosphorus concentration in each sampling point exist obvious difference; The sampling point of total phosphorus increasing is the fish tank and the foaming stone, while the total phosphorus concentration of the sedimentation tank and 3 floating beds decreases. In addition, the study further uses private and social cost-benefit analysis to explore whether the commercial Aquaponics farm operation has net benefit for farm operator and society net benefit as well. Private cost-benefit analysis results show that the Aquaponics farm internal benefit of 17,923,662 NTD, after deducting 10 years internal cost 5,634,350 NTD, and private net cost benefit is 12,289,362 NTD show that farm operators are profitable. In the social cost benefit analysis, the external cost is 203,481 NTD for 10 years indicate that Aquaponics system electricity consumption was higher than Aquaculture, resulting in increased air pollution and carbon emission. However, the external benefit of 300,788,740 NTD is that the Aquaponics system reduced by water quality purification, and the social net cost benefit is 312,874,621 NTD, indicating that Aquaponics is worthy of government promotion.