The effects of magnetic field on the biomass growth and nitrogen and phosphorus removal by Spirulina platensis / 磁場對螺旋藻生長與氮磷去除之影響

碩士 / 國立雲林科技大學 / 環境與安全工程系碩士班 / 99 / This study aimed to understand the different magnetic field strength in order to promote growth, increase production of Spirulina and Spirulina for the removal of nitrogen and phosphorus magnetic field strength would be affected. Purification of water quality at the same time, the biochemical composition of algae is more economic value.
The results show that the magnetic field was helpful to increase the biomass production, by applying 15 mT magnetic field strength at the time, up to the maximum biomass production 516±30mg/L, compared with the control group increased 66 % . Spirulina grown in the magnetic field strength 5 ~ 30 mT environment, the absorption and utilization of PO43--P of the capacity of the magnetic field strength than its growth at 0 mT. Particular 15 mT can be removed 30±4.4mg/L PO43--P. Protein content of algae up to the highest level 15 ± 5mg / L in 15 mT, compared to 0 mT increased 542%
Spirulina culture in wastewater results show that the growth condition with or without external magnetic field were worse than the medium as a substrate. NH4 +-N at 0 mT to remove the maximum amount of 4.6±0.6 mg/L. NO3--N removal in the maximum amount of 15 mT for the 1.9±0.1mg/L. Both of these two will PO43--P completely exhausted. Cultivation of Spirulina using wastewater the percentage of protein content up to 3.1±0.7% at 15 mT and higher than the growth in the medium as a substrate with about 15 mT magnetic field strength of 2.9±0.3%. The ultimate low lipid content cannot be detected. Therefore, this study confirmed that spirulina can take advantage of the growth of the nutrients in wastewater and reduce nitrogen and phosphorus in the water and increase the protein content of algae.

Identiferoai:union.ndltd.org:TW/099YUNT5633011
Date January 2011
CreatorsPei-Yu Hung, 洪珮瑜
ContributorsTerng-Jou Wan, 萬騰州
Source SetsNational Digital Library of Theses and Dissertations in Taiwan
Languagezh-TW
Detected LanguageEnglish
Type學位論文 ; thesis
Format86

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