2013 Volume 7 Issue 4
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Chen Lili, Zhao Tongke, Zhang Chengjun, Li Peng, Li Xinrong, Dong Ruozheng. Influences of different factors on effect of matrix nitrogen and phosphorus removal in substrates of constructed wetland[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1261-1266.
Citation: Chen Lili, Zhao Tongke, Zhang Chengjun, Li Peng, Li Xinrong, Dong Ruozheng. Influences of different factors on effect of matrix nitrogen and phosphorus removal in substrates of constructed wetland[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1261-1266.
shu

Influences of different factors on effect of matrix nitrogen and phosphorus removal in substrates of constructed wetland

  • 1.

    Institute of Plant Nutrition Resources, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China

  • 2.

    College of Resources and Environmental Sciences, Agricultural University of Hebei, Baoding 071000, China

  • Received Date: 17/04/2012
    Accepted Date: 06/02/2012
    Available Online: 09/04/2013
    Fund Project:
  • The three substrates of zeolite, blast furnace slag and ceramic filter were put into constructed sewage to evaluate their absorption capacity to the ammonium nitrogen (NH4+-N) and total P (TP) under different influencing factors. The results showed that at different adsorption times, the zeolite had a best absorption capacity to NH4+-N, and the ceramic filter had a strong absorption effect to TP.The concentration of sewage had a bigger effect on the absorption of zeolite to NH4+-N, and the absorption amount increased with the concentration of sewage increasing, while it had little effect on the absorption of blast furnace slag to NH4+-N and TP, and ceramic filter to NH4+-N.The three substrates absorption amount to NH4+-N and TP decreased with the adsorbent amount increasing. To achieve a better absorption capacity, tests results could be considered based on the substrate inputs. The pH value had a significant effect on the zeolite absorption to NH4+-N, and it had a best absorption effect when pH was at 6~7,whereas when pH was at 8~12 (alkaline conditions),the matrix had a strong absorption to TP.
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Influences of different factors on effect of matrix nitrogen and phosphorus removal in substrates of constructed wetland

  • Received Date: 17/04/2012
  • Accepted Date: 06/02/2012
  • Available Online: 09/04/2013
Fund Project:

Abstract: The three substrates of zeolite, blast furnace slag and ceramic filter were put into constructed sewage to evaluate their absorption capacity to the ammonium nitrogen (NH4+-N) and total P (TP) under different influencing factors. The results showed that at different adsorption times, the zeolite had a best absorption capacity to NH4+-N, and the ceramic filter had a strong absorption effect to TP.The concentration of sewage had a bigger effect on the absorption of zeolite to NH4+-N, and the absorption amount increased with the concentration of sewage increasing, while it had little effect on the absorption of blast furnace slag to NH4+-N and TP, and ceramic filter to NH4+-N.The three substrates absorption amount to NH4+-N and TP decreased with the adsorbent amount increasing. To achieve a better absorption capacity, tests results could be considered based on the substrate inputs. The pH value had a significant effect on the zeolite absorption to NH4+-N, and it had a best absorption effect when pH was at 6~7,whereas when pH was at 8~12 (alkaline conditions),the matrix had a strong absorption to TP.

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