Nutrient removal from polluted river water by using constructed wetlands

Jing, Shuh-Ren; Lin, Yin-Feng; Lee, Der-Yuan; Wang, Tze-Wen

doi:10.1016/s0960-8524(00)00100-0

Cited by 117 publications

(48 citation statements)

References 8 publications

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“…Recently, more and more wetland reserves have been established and protected in the upstream and midstream of the Songhua River. Wetland distribution areas could work as natural water purification zones to improve the water quality in the Songhua River [38,39]. In the midstream of the Songhua River (From SH4 to SH6), farmlands are primarily distributed along the mainstream of the Songhua River, and forests are distributed in the tributary region of the Songhua River.…”

Section: Water Quality Of Songhua River and Regional Ecological Healthmentioning

confidence: 99%

Spatial and Temporal Variations of Water Quality in Songhua River from 2006 to 2015: Implication for Regional Ecological Health and Food Safety

et al. 2017

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Abstract:The Songhua River is the largest river in northeastern China; the river's water quality is one of the most important factors that influence regional ecological health and food safety in northeastern China and even the downstream of the Heilong River in Russia. In recent years, the Chinese government implemented several water resource protection policies to improve the river's water quality. In order to evaluate the influence of the new policies on the water quality in the Songhua River, water quality data from 2006 to 2015 were collected monthly from the nine sites along the mainstream of the Songhua River. Results show that the water quality in the Songhua River could be divided into two groups during the last 10 years. Before 2010, water quality in the Songhua River was primarily influenced by regional human activities. Industries were the major pollutant sources in the upstream of the Songhua River. After several new policies were implemented by the local government in 2010, water quality in the Songhua River improved. As a result, the biodiversity of fish and ecological health in the Songhua River improved.

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Section: Water Quality Of Songhua River and Regional Ecological Healthmentioning

confidence: 99%

Spatial and Temporal Variations of Water Quality in Songhua River from 2006 to 2015: Implication for Regional Ecological Health and Food Safety

et al. 2017

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“…The results had demonstrated that bigger efficiencies for the treatment of the water of the used river had occurred in the system contend a reactor contend floating aquatic plant together with another reactor contend gravel, ground and peat. Jing et al (2001) conducted research-using CWs to treat river water and obtained 13.0 to 51.0% efficiency in the reduction of CDO. …”

Section: Water Analysesmentioning

confidence: 99%

Performance of the constructed wetland system for the treatment of water from the corumbataí river

Borges

Tauk-Tornisielo

Domingos

et al. 2008

Braz. arch. biol. technol.

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“…Constructed wetlands (CWs) are generally regarded as a promising economic biological treatment system and have been widely applied for treatment of various types of wastewaters [15][16][17][18]. The anoxic zones and microsites predominantly presented in wetland substrates are favorable for denitrification [19].…”

Section: Introductionmentioning

confidence: 99%

Nitrate removal from tail water by integrated vertical-flow constructed wetlands at a high hydraulic loading rate

Chang¹,

Wu²,

Dai³

et al. 2013

Desalination and Water Treatment

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A B S T R A C TNitrate removal rates of two pilot-scale integrated vertical-flow constructed wetlands (IVCWs) treating tail water, under a hydraulic loading rate (HLR) of 250 mm/d with a mean influent NO À 3 -N concentration of 24.4 mg·L À1 , were evaluated. Mean NO À 3 -N removal efficiencies of 15.5 and 18.5% with mass removal rates of 1.01 g·m À2 ·d À1 and 1.16 g·m À2 ·d À1 for IVCW 1 (planted with Canna indica and Pontederia cordata) and 2 (planted with Typha orientalis and Arundo donax var. versicolor), respectively, were achieved. The removal rate constants as fitted by the first-order area-based model averaged 0.046 and 0.055 m·d À1 , respectively. Since NO À 3 -N was the dominant nitrogen form in the effluent, denitrification was the limiting step in nitrogen removal despite of favorable pH and anaerobic conditions in the wetland beds. Low availability of carbon source, high HLR, and low temperature could be the probable influencing factors for the observed low NO À 3 -N removal efficiencies. However, IVCW could be used to treat tail water for nitrate removal at a comparable high loading rate.

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Nutrient removal from polluted river water by using constructed wetlands

Cited by 117 publications

References 8 publications

Spatial and Temporal Variations of Water Quality in Songhua River from 2006 to 2015: Implication for Regional Ecological Health and Food Safety

Spatial and Temporal Variations of Water Quality in Songhua River from 2006 to 2015: Implication for Regional Ecological Health and Food Safety

Performance of the constructed wetland system for the treatment of water from the corumbataí river

Nitrate removal from tail water by integrated vertical-flow constructed wetlands at a high hydraulic loading rate

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