A study of combining coconut shell activated carbon (CSAC) with nano-silver photocatalyst in water purification process-The case study of Aquaponics system / 椰殼活性碳結合奈米銀光觸媒於淨化水質之研究-以魚菜共生系統為例

碩士 / 健行科技大學 / 工業管理系碩士班 / 105 / In the recent years, food security issue and extending the tolerance for pesticide residues in food had made people more aware of the importance of food sanitation and safety, and for such pollution-free farming like aquaponics has gradually become popular and well-known.
Over the past few years, the popularity of research and promotion on aquaponics has increased dramatically, and the majority of them are mid or small scale system, especially the family type aquaponics is considerably well-known and chosen. Normally the family type of aquaponics is simple, small and very easy to set up, with water yield of below 500L. Small scale system often faces the issue of abnormal mass mortality and illness at the beginning of developing up the system, and the main cause are due to lack of care or the instability of water quality. Therefore, the aim of this research is attempting to combine CSAC with nano-silver photocatalyst and use it in aquaponics’ water purification system to stabilize the water quality.
Nano-silver photocatalyst is a pure and toxic-free material, and under the direct expose to the UV light with wavelength below 387nm, it will stimulate a unique form of chemical reaction which creates a very strong hydroxyl free radical and can be widely used for deodorization, sterilization, bacteriostat, water purification and zymosis proofing.
The result shows that adding CSAC can effectively improve the Eh value by 52.54mv, the combination of CSAC with nano-silver photocatalyst can actually improve the Eh value by 50.54mv, and nano-silver photocatalyst can improve the Eh value by 35.36mv. The water improvement shows that the experimental group has higher survival rate than the control group. By using 15w of plant growth light to irradiate the plants for over 16 hours per day, the plants grew better. Therefore, this study shows that the combined material can effectively improve the water quality within an aquaponics, while achieving the purpose of planting vegetables.

Identiferoai:union.ndltd.org:TW/105CYU05041009
Date January 2017
CreatorsYen-Chih Su, 蘇彥志
ContributorsTzu-Yun Chang, 張子筠
Source SetsNational Digital Library of Theses and Dissertations in Taiwan
Languagezh-TW
Detected LanguageEnglish
Type學位論文 ; thesis
Format88

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