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Volume 38 Issue 5
Aug.  2020
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Article Navigation >  ENVIRONMENTAL ENGINEERING  > 2020  >  38(5): 49-53,209
DENG Lin-li, ZHANG Kai-shan. ANALYSIS OF CHARACTERISTICS AND SOURCE APPORTION OF METAL POLLUTION IN PM2.5 IN TYPICAL METROPOLITAN CITIES WITH HAZE POLLUTION[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(5): 113-119. doi: 10.13205/j.hjgc.202005020
Citation: PAN Jun, SUN Bo-yang, WEI Wei, ZHANG Jin, TAN Shuai-chen, LI Rui-fang. EXPERIMENT OF MICRO-POLLUTED WATER TREATMENT BY COMBINED TECHNOLOGY OF MICRO-NANO AERATION-ECOLOGICAL FLOATING WETLAND[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(5): 49-53,209. doi: 10.13205/j.hjgc.202005009
shu

EXPERIMENT OF MICRO-POLLUTED WATER TREATMENT BY COMBINED TECHNOLOGY OF MICRO-NANO AERATION-ECOLOGICAL FLOATING WETLAND

doi: 10.13205/j.hjgc.202005009

  • School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang 110168, China

  • Received Date: 2019-04-14
    Abstract
  • In traditional aerated ecological floating wetland, the water body was usually stirred vigorously, and the microbial membrane and the rhizosphere were not stabilized, thus, the nitrogen and phosphorus removal effects of the polluted water were affected. Therefore, a new micro-nano aeration-eco-float wetland was constructed in this paper. The chamber generated micro-nano bubbles through a micro-nano rubber aeration tube to improve the removal of nitrogen and phosphorus. The results showed that the removal rate of NH4+-N in the aerated group was 99.8% in 20 days; the removal rate of TP was 93.03%; the removal rate of NO3--N was 78%, so that the water with inferior Ⅴ quality could be treated to meet Class III emission standards, and the weak acidic water could also be modified into neutral. The experiment proved that the micro-nano aeration-eco-floating island combined technology could effectively improve the dissolved oxygen content of the water body in short term, and reduce stirring to a weak level to the water body, which helped to improve the stability of the bio-filler membrane, and the removal effect of nitrogen and phosphorus was higher than the traditional ecological floating wetland obviously. This experiment provided a technical basis for the promotion and application of micro-nano aeration-ecological floating wetland joint technology.
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