Efficient utilization of Iris pseudacorus biomass for nitrogen removal in constructed wetlands: Combining alkali treatment

Gu, Xushun; He, Shengbing; Huang, Jung-Chen

doi:10.1016/j.envpol.2021.118170

Cited by 10 publications

(1 citation statement)

References 47 publications

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“…Microorganisms play a key role in removing pollutants from artificial wetlands and can degrade pollutants into insoluble or harmless substances (Kumar & Dutta 2019;Zhu et al 2021). Aquatic plants are an important part of artificial wetlands and can directly remove pollutants from wastewater through absorption and sorption (Zhou et al 2018b;Gu et al 2021). Artificial wetland substrates play an important role in pollutant removal, not only by providing a place for the growth and reproduction of microorganisms but also by pollutant sorption (Lu et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Demonstration study of bypass multipond wetland system to enhance river water quality

Zeng

Xie

Guo

et al. 2022

Water Science and Technology

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This study focused on the water quality of a river in Wuhan City, China, that is surrounded by ponds that were transformed into a bypass multipond wetland system to improve river water quality. The bypass multipond wetland system included surface flow artificial wetlands, modified partition ponds, aeration reoxygenation ponds, ecological ponds, and other processes. After the stable operation of the process, the water transparency was higher than 60 cm and the dissolved oxygen (DO) was higher than 5 mg/L, while the ammonia nitrogen (NH3-N) concentration was less than 1.0 mg/L, total phosphorus (TP) was lower than 0.2 mg/L, and chemical oxygen demand (COD) was lower than 20 mg/L, achieving the treatment target. After monitoring the results of each process, the process which best enhanced the water transparency enhancement was the surface flow of the artificial wetlands and ecological ponds. The aeration reoxygenation pond had the best effect on DO enhancement. The processes that most affected NH3-N and TP removal were the surface flow artificial wetlands and ecological ponds. The modified parthenogenic pond had the greatest effect on COD removal. The bypass multi-pond wetland system not only improved the river water quality but also enhanced the river landscape, and can act as a reference for similar river water quality improvement actions.

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