Purifying eutrophic river waters with integrated floating island systems

Zhao, Fengliang; Xi, Shu; Yang, Xiaoe; Yang, Weidong; Jianjian, Li; Gu, Baojing; He, Zhenli

doi:10.1016/j.ecoleng.2011.12.012

Cited by 173 publications

(74 citation statements)

References 31 publications

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“…EFB's removal rates of TN and TP in summer and autumn were significantly higher than in winter and spring, and its major reason was that floating bed plants' removal capacity was related to its own growth condition and metabolism [40]. Summer and autumn are temperaturebias floating bed plants' vigorous periods of growth, hence, the plants demonstrate a high purifying rate [41].…”

Section: Temperaturementioning

confidence: 99%

Review of Ecological Floating Bed Restoration in Polluted Water

Deng¹,

Ni²

2013

JWARP

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Using Ecological Floating Bed (EFB) to purify polluted water is a process of ecological restoration at virgin position, as well as a complicated physical, chemical and biological process. Its core is utilizing aquatic plants and root's microbes to absorb nitrogen and phosphorus elements, degrade organic matter and enrich heavy metal. EFB has been applied to some water pollution control projects at home and abroad, and has got several achievements. However, there are some factors influenced the removal rate of pollutants, including plants, temperature, seasons, processing time, coverage and initial concentration of pollutants. In the future, the development orientation has been prospected from plant and its combinations, the transformation of EFB structure and the utilization of aquatic resources, and probed the technology of EFB's building and management, to implement the win-win of landscape benefit and ecological function.

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Section: Temperaturementioning

confidence: 99%

Review of Ecological Floating Bed Restoration in Polluted Water

Deng¹,

Ni²

2013

JWARP

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“…De Stefani et al (2011) developed an experiment which was conducted in a channel receiving aquaculture effluents and found that median chemical oxygen demand (COD) in water passing through the floating wetland system was reduced by 66%, biochemical oxygen demand by 52% and total phosphorus by 65%. Zhao et al (2012) indicated that average removal rates for total nitrogen (TN), NH -N, total phosphorus (TP) and chlorophyll a in summer-autumn season were 36.9%, 44.8%, 25.6%, 53.2%, 43.3% and 64.5%. In addition, it also effectively reduced the concentrations of total suspended substance (TSS), Escherichia coli and heavy metals.…”

Section: Introductionmentioning

confidence: 99%

Do Aquatic Macrophytes Configuration Mode Impact Water Quality?

Liu¹,

Zhang²,

Liu³

et al. 2017

JSM

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This paper had selected watermifoil (Myriophyllum veticillatumLinn Kertas ini telah memilih tumbuhan watermifoil (Myriophyllum veticillatum Linn.), softstem bulrush (Scirpus validus Vahl) dan yellow-flowered iris (Iris wilsonii) yang menulenkan air melalui konfigurasi berbeza. AFI dengan kombinasi berbeza tumbuhan akuatik disediakan bagi menulenkan air selama 50 hari. Kajian ini bertujuan menilai ciri kimia dan vegetatif setiap tumbuhan yang dikaji di samping mencari konfigurasi tumbuhan akuatik bagi memaksimumkan kecekapan penyingkiran bahan cemar melalui pulau terapung buatan (AFI

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“…Accordingly, remediation of river water quality has become a significant concern, both regionally and worldwide (Alvarez-Vázquez et al, 2009;Sheng et al, 2012). In situ bioremediation is a potentially effective process for purification of polluted surface water (Everard and Moggridge, 2012;Zhao et al, 2012). Indeed, many in situ remediation processes such as ecological floating bed techniques and constructed wetlands have been developed * Corresponding author.…”

Section: Introductionmentioning

confidence: 99%

A combined application of different engineering and biological techniques to remediate a heavily polluted river

Sheng

Ding

et al. 2013

Ecological Engineering

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a b s t r a c tRiver pollution is becoming a serious problem worldwide. A field-scale experiment was undertaken to remediate a heavily polluted river using a combined engineering approach of aeration, microorganisms, biological aerated filtration, artificial biofilms and ecological floating beds. Prior to remediation, the river water was black, anoxic and highly sulfidic. With remediation, the chemical oxygen demand decreased from ∼250 to ∼50 mg L −1 , NH 4 + -N decreased from ∼27 to ∼4 mg L −1 , sulfide decreased from ∼3 to ∼0.3 mg L −1 , and total suspended solids decreased from ∼270 to ∼40 mg L −1 . At the same time, dissolved oxygen increased from ∼0.1 to ∼3.5 mg L −1 , and water clarity increased from ∼6 to ∼40 cm. Furthermore, the unpleasant odor emanating from the polluted river was also stopped, and local farmers have begun using the water for irrigation. This field-scale experiment thus indicates the potential usefulness of this combined engineering approach to remediate heavily polluted rivers.

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Purifying eutrophic river waters with integrated floating island systems

Cited by 173 publications

References 31 publications

Review of Ecological Floating Bed Restoration in Polluted Water

Review of Ecological Floating Bed Restoration in Polluted Water

Do Aquatic Macrophytes Configuration Mode Impact Water Quality?

A combined application of different engineering and biological techniques to remediate a heavily polluted river

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