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Volume 5 Issue 3
Sep.  2014
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Article Navigation >  Journal of Tropical Biology  > 2014  >  5(3): 228-232

XU Yun, LIANG Wensi, LIU Zhiyuan. Efficiency of Nitrogen and Phosphorus Removal from Aquaculture Wastewater by Two Marine Microalgae[J]. Journal of Tropical Biology, 2014, 5(3): 228-232. doi: 10.15886/j.cnki.rdswxb.2014.03.004
Citation: XU Yun, LIANG Wensi, LIU Zhiyuan. Efficiency of Nitrogen and Phosphorus Removal from Aquaculture Wastewater by Two Marine Microalgae[J]. Journal of Tropical Biology, 2014, 5(3): 228-232. doi: 10.15886/j.cnki.rdswxb.2014.03.004
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Efficiency of Nitrogen and Phosphorus Removal from Aquaculture Wastewater by Two Marine Microalgae

doi: 10.15886/j.cnki.rdswxb.2014.03.004

  • 1. College of Agronomy, Hainan University, Haikou 570228, China;

  • 2. College of Oceanology, Hainan University, Haikou 570228, China

  • Received Date: 2014-07-20
  • Two microalgae,Isochrysis sp. HN and Amphora sp. BQW,were isolated from coastal seawater in Hainan and cultured with juvenile shrimp aquaculture wastewater. Results showed that both strains grew well in shrimp breeding wastewater. The relative growth rate of Amphora sp. BQW cultured in shrimp breeding wastewater was 3. 53 times higher than that of Isochrysis sp. HN. After 8 days of culture,Isochrysis sp. HN and Amphora sp. BQW removed the total phosphorus in the waste water by 30. 9% and 70. 9%,the total nitrogen by1. 0 % and 28. 7% and the nitrate nitrogen by 72. 0 % and 85. 7%,respectively. However,nitrite nitrogen concentration in the wastewater was not significantly removed after the waste water was treated with the microalgae,and the ammonia nitrogen concentration in the waste water increased obviously after the treatment.
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Efficiency of Nitrogen and Phosphorus Removal from Aquaculture Wastewater by Two Marine Microalgae

doi: 10.15886/j.cnki.rdswxb.2014.03.004
  • 1. College of Agronomy, Hainan University, Haikou 570228, China;
  • 2. College of Oceanology, Hainan University, Haikou 570228, China
  • Received Date: 2014-07-20

Abstract: Two microalgae,Isochrysis sp. HN and Amphora sp. BQW,were isolated from coastal seawater in Hainan and cultured with juvenile shrimp aquaculture wastewater. Results showed that both strains grew well in shrimp breeding wastewater. The relative growth rate of Amphora sp. BQW cultured in shrimp breeding wastewater was 3. 53 times higher than that of Isochrysis sp. HN. After 8 days of culture,Isochrysis sp. HN and Amphora sp. BQW removed the total phosphorus in the waste water by 30. 9% and 70. 9%,the total nitrogen by1. 0 % and 28. 7% and the nitrate nitrogen by 72. 0 % and 85. 7%,respectively. However,nitrite nitrogen concentration in the wastewater was not significantly removed after the waste water was treated with the microalgae,and the ammonia nitrogen concentration in the waste water increased obviously after the treatment.

XU Yun, LIANG Wensi, LIU Zhiyuan. Efficiency of Nitrogen and Phosphorus Removal from Aquaculture Wastewater by Two Marine Microalgae[J]. Journal of Tropical Biology, 2014, 5(3): 228-232. doi: 10.15886/j.cnki.rdswxb.2014.03.004
Citation: XU Yun, LIANG Wensi, LIU Zhiyuan. Efficiency of Nitrogen and Phosphorus Removal from Aquaculture Wastewater by Two Marine Microalgae[J]. Journal of Tropical Biology, 2014, 5(3): 228-232. doi: 10.15886/j.cnki.rdswxb.2014.03.004
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