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Effect of Plants Combination in Purifying Farmland Drainage

  • Songmin Li
  • Qingyun Zhou
  • Nana Han
  • Shuhong Sun
Conference paper
Part of the IFIP Advances in Information and Communication Technology book series (IFIPAICT, volume 509)

Abstract

Drainage from farmland contains a lot of nitrogen and phosphorus, it is one of the important causes of water eutrophication. In order to reduce the concentration of nutrients before it discharged into receiving waters, 7 aquatic plants were selected to plant in outdoor planting box in the experiment, 5 different aquatic plant combinations were constructed, the removal effect of different combination was studied under same conditions, the reduction rule was researched, and the nitrogen and phosphorus in sediment were investigated. The results showed: after 49 days, the purifying effect of aquatic plants was significantly higher than that with no plant. Among them, the combination with Lythrum salicaria, Reed, Canna has the best effect in TN and TP removal, the removal rate reach: 90.98%, 95.95%, 98.46% respectively. Reductive process of total nitrogen, ammonia nitrogen and total phosphorus in water are accord with polynomial regression, the concentration decreased along with time increasing. When initial nitrogen and phosphorus content in sediment is higher, nitrogen and phosphorus in the sediment will decrease because of plants absorbing; whereas the initial sediment nitrogen and phosphorus content is low, nitrogen and phosphorus in the water can transfer into the sediment, at the same time, the water was purified.

Keywords

Aquatic plants combination Farmland drainage Nitrogen and phosphorus Reduction Sediment 

Notes

Acknowledgment

This research was supported by the Major Science and Technology Program for Water Pollution Control and Treatment (2012ZX07101-008).

References

  1. 1.
    Engelhardt, K.A.M., Ritchie, M.E.: Effects of macmphyte species richness on wetland ecosystem functioning and services. Nature 12, 687–689 (2001)CrossRefGoogle Scholar
  2. 2.
    Wu, Z.B., Qiu, D.R., He, F.: Effects of rehabilitation of submerged macrophytes on nutrient level of a eutrophic lake. Chin. J. Appl. Ecol. 14(8), 1351–1353 (2003)Google Scholar
  3. 3.
    Lu, Q., He, Z.L., Graetz, D.A., et al.: Phytoremediation to remove nutrients and improve eutrophic stormwaters using water Iettuce (Pistia stratiotes L.). Environ. Sci. Pollut. Res. 17(1), 84–96 (2010)CrossRefGoogle Scholar
  4. 4.
    Hu, C., Liu, Q., Long, W.W., et al.: Purification of eutrophic water of different degrees with hydrophytes. Environ. Sci. Technol. 34(10), 6–9 (2011)Google Scholar
  5. 5.
    Liu, Z.Y., Wang, Y.L., Gong, D.X., et al.: Removal ability of common aquatic plants on total N and total P in farmland drainage. Hunan Agric. Sci. 3, 59–61 (2012)Google Scholar
  6. 6.
    Yang, L.H., Zhuo, L.: Studies on purification abm of aquatic plants of the eutrophication water. J. Jilin Agric. Univ. 28(6), 663–666 (2006)Google Scholar
  7. 7.
    Han, X.Y., Song, Z.W., Li, P.Y.: Selection and assembly of macrophyte species in constructed wetland for purification of N and P in wastewater. J. Lake Sci. 20(6), 741–747 (2008)CrossRefGoogle Scholar
  8. 8.
    Tian, R.N., Zhu, M., Sun, X.X., et al.: Nitrogen and phosphorus removal effects of different hydrophyte combinations under simulated eutrophic conditions. J. Beijing For. Univ. 33(6), 191–195 (2011)Google Scholar

Copyright information

© IFIP International Federation for Information Processing 2019

Authors and Affiliations

  • Songmin Li
    • 1
    • 2
  • Qingyun Zhou
    • 1
  • Nana Han
    • 1
  • Shuhong Sun
    • 1
  1. 1.Department of Water Conservancy EngineeringTianjin Agriculture UniversityTianjinChina
  2. 2.State Key Laboratory of Hydraulic Engineering Simulation and SafetyTianjin UniversityTianjinChina

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