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Volume 9 Issue 3
Jun.  2018
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Article Navigation >  Journal of Tropical Biology  > 2018  >  9(3): 287-294

LU Weiqiang, GU Zhifeng. Removal of Nitrogen and Phosphate through Tidal Water Flow in Recirculating Aquaculture Systems[J]. Journal of Tropical Biology, 2018, 9(3): 287-294. doi: 10.15886/j.cnki.rdswxb.2018.03.004
Citation: LU Weiqiang, GU Zhifeng. Removal of Nitrogen and Phosphate through Tidal Water Flow in Recirculating Aquaculture Systems[J]. Journal of Tropical Biology, 2018, 9(3): 287-294. doi: 10.15886/j.cnki.rdswxb.2018.03.004
shu

Removal of Nitrogen and Phosphate through Tidal Water Flow in Recirculating Aquaculture Systems

doi: 10.15886/j.cnki.rdswxb.2018.03.004

  • College of Ocean Science, Hainan University/State Key Laboratory of Marine Resource Utilization in the South China Sea, Haikou, Hainan 570228, China

  • Received Date: 2017-12-09
  • Rev Recd Date: 2018-04-30
  • In order to explore the effect of tidal water flow on water purification in recirculating aquaculture systems,biofilters in recirculating aquaculture systems with tidal water flow and spill water flow setups were compared and analyzed by using the National Standard for Determination of Water Quality to observe their effect on removal of nitrogen and phosphorus in the water of the fish tank. The experimental results of ammonia nitrogen load showed that the concentration of NH4+-N in the water was reduced from 1. 11 mg·L-1 to below 0. 01 mg·L-1 in 12 d in the tidal aquaponics,and in 15 d in the spill aquaponics. There was no much difference in removal speed of PO43--P between the tidal and the spill aquaponics,and the highest concentration of NO2--N was 0. 05 mg·L-1 in the tidal aquaponics,and 0. 22 mg·L-1 in the spill aquaponics during the experiment. It is hence concluded that the tidal recirculating aquaculture system is better than the spill one in the removal of NH4+-N and NO2--N.
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Removal of Nitrogen and Phosphate through Tidal Water Flow in Recirculating Aquaculture Systems

doi: 10.15886/j.cnki.rdswxb.2018.03.004
  • College of Ocean Science, Hainan University/State Key Laboratory of Marine Resource Utilization in the South China Sea, Haikou, Hainan 570228, China
  • Received Date: 2017-12-09
  • Rev Recd Date: 2018-04-30

Abstract: In order to explore the effect of tidal water flow on water purification in recirculating aquaculture systems,biofilters in recirculating aquaculture systems with tidal water flow and spill water flow setups were compared and analyzed by using the National Standard for Determination of Water Quality to observe their effect on removal of nitrogen and phosphorus in the water of the fish tank. The experimental results of ammonia nitrogen load showed that the concentration of NH4+-N in the water was reduced from 1. 11 mg·L-1 to below 0. 01 mg·L-1 in 12 d in the tidal aquaponics,and in 15 d in the spill aquaponics. There was no much difference in removal speed of PO43--P between the tidal and the spill aquaponics,and the highest concentration of NO2--N was 0. 05 mg·L-1 in the tidal aquaponics,and 0. 22 mg·L-1 in the spill aquaponics during the experiment. It is hence concluded that the tidal recirculating aquaculture system is better than the spill one in the removal of NH4+-N and NO2--N.

LU Weiqiang, GU Zhifeng. Removal of Nitrogen and Phosphate through Tidal Water Flow in Recirculating Aquaculture Systems[J]. Journal of Tropical Biology, 2018, 9(3): 287-294. doi: 10.15886/j.cnki.rdswxb.2018.03.004
Citation: LU Weiqiang, GU Zhifeng. Removal of Nitrogen and Phosphate through Tidal Water Flow in Recirculating Aquaculture Systems[J]. Journal of Tropical Biology, 2018, 9(3): 287-294. doi: 10.15886/j.cnki.rdswxb.2018.03.004
shu

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