博碩士論文查詢聯邦系統首頁 聯絡信箱 關於我們 加入我們

本論文已被瀏覽 33 次, [ 造訪詳細資料與全文 ] 9 次,[ 回到前頁查詢結果 ] [ 重新搜尋 ]

LIfe Cycle Analysis of an Airlifted Recirculation Aqualculture Facility.

作者:Marlon Alberetos Greensword,
畢業學校:LSU
出版單位:LSU
核准日期:2015-12-17
類型:Electronic Thesis or Dissertation
權限:unrestricted.I hereby certify that, if appropriate, I have obtained and attached herein a written permission statement from the owner(s) of each third party copyrighted matter to be included in my th....

英文摘要

Airlift-equipped recirculating aquaculture systems (RAS) provide water-circulation, aeration, and degassing efficiently and reliably. This project investigated the need for biofilters in a fish hatchery environment to address biofouling of tank water from hatching eggs. Eggs of various fish species were selected and Biological Oxygen Demand (BOD), total Kjeldahl nitrogen (TKN), and protein loading and content were measured and compared. Means for all samples were: 0.67±0.05g BOD₅/g, 10.89 nitrogen±0.84% and the mean protein content 69.22±3.82%. A statistical analysis indicates that Rachycentron canadum (cobia) and Ictalurus punctatus (channel catfish) is the most representative of the multi-species lot when compared to Balantiocheilus melanopterus (bala shark), the targeted species for this study. Secondly, this project sought to quantify the costs associated with domestic tilapia growout production using Airlifted PolyGeyser® RAS technology. A cost analysis was applied to a given facility, based on feeding rate and annual production requirements. Results indicated a capital cost of $4,887,000 for the entire facility including $4,671,000 for RAS equipment. The annual production cost of the growout was determined to be $953,140 for the facility. The production cost of growout is $0.93 per pound of fish. The calculated facility equivalent equipment cost was $0.26 and the purge facility $0.1 per pound of fish. The total production cost of the facility per pound of tilapia produced was $1.19. The life cycle costs of the facility over period of 30 years was $25,572,000, of which feeding represents 43% with a cost of $11,056,000. Operation cost has the second highest cost of $5,053,000 then stocking cost, at $2,373,000. The thesis presents a tabular template of costs applicable to airlifted PolyGeyser®-equipped facilities.


chair - Malone, Ronald F

committee_member - Adrian, Donald Dean

committee_member - Gutierrez Wing, M Teresa

committee_member - Theegala, Chandra

committee_member - Liao, Warren


 

計畫贊助者: