Long-term performance and feasibility of using constructed wetlands for treatment of emerging and nanomaterial contaminants in municipal and industrial wastewater

Anawar, Hossain M.; Ahmed, Golam; Strezov, Vladimir

doi:10.1016/b978-0-12-814673-6.00003-6

Cited by 4 publications

(3 citation statements)

References 59 publications

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“…Sediment-rooted plant constructed wetlands exhibit high a potential for the remediation of polluted urban river/creek water [66]. Constructed wetlands combine physical and biogeochemical processes for the effective removal of water pollutants and restoration of the natural river ecosystem (Figure 2).…”

Section: Constructed Wetlandsmentioning

confidence: 99%

Remediation of Polluted River Water by Biological, Chemical, Ecological and Engineering Processes

Anawar

Chowdhury

2020

Sustainability

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Selection of appropriate river water treatment methods is important for the restoration of river ecosystems. An in-depth review of different river water treatment technologies has been carried out in this study. Among the physical-engineering processes, aeration is an effective, sustainable and popular technique which increases microbial activity and degrades organic pollutants. Other engineering techniques (water diversion, mechanical algae removal, hydraulic structures and dredging) are effective as well, but they are cost intensive and detrimental to river ecosystems. Riverbank filtration is a natural, slow and self-sustainable process which does not pose any adverse effects. Chemical treatments are criticised for their short-term solution, high cost and potential for secondary pollution. Ecological engineering-based techniques are preferable due to their high economic, environmental and ecological benefits, their ease of maintenance and the fact that they are free from secondary pollution. Constructed wetlands, microbial dosing, ecological floating beds and biofilms technologies are the most widely applicable ecological techniques, although some variabilities are observed in their performances. Constructed wetlands perform well under low hydraulic and pollutant loads. Sequential constructed wetland floating bed systems can overcome this limitation. Ecological floating beds are highly recommended for their low cost, high effectiveness and optimum plant growth facilities.

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Section: Constructed Wetlandsmentioning

confidence: 99%

Remediation of Polluted River Water by Biological, Chemical, Ecological and Engineering Processes

Anawar

Chowdhury

2020

Sustainability

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“…The associated environmental and economic benefits have established CWs as a viable option for wastewater treatment [2]. These have been widely applied in the treatment of various types of wastewater, such as municipal, agricultural runoff, storm runoff, and industrial [3][4][5][6][7][8]. Floating treatment wetland (FTW) is a novel technology, based on a floating vegetated system, that has unique abilities to remediate wastewater [9,10].…”

Section: Introductionmentioning

confidence: 99%

Role of Microorganisms in the Remediation of Wastewater in Floating Treatment Wetlands: A Review

et al. 2020

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This article provides useful information for understanding the specific role of microbes in the pollutant removal process in floating treatment wetlands (FTWs). The current literature is collected and organized to provide an insight into the specific role of microbes toward plants and pollutants. Several aspects are discussed, such as important components of FTWs, common bacterial species, rhizospheric and endophytes bacteria, and their specific role in the pollutant removal process. The roots of plants release oxygen and exudates, which act as a substrate for microbial growth. The bacteria attach themselves to the roots and form biofilms to get nutrients from the plants. Along the plants, the microbial community also influences the performance of FTWs. The bacterial community contributes to the removal of nitrogen, phosphorus, toxic metals, hydrocarbon, and organic compounds. Plant–microbe interaction breaks down complex compounds into simple nutrients, mobilizes metal ions, and increases the uptake of pollutants by plants. The inoculation of the roots of plants with acclimatized microbes may improve the phytoremediation potential of FTWs. The bacteria also encourage plant growth and the bioavailability of toxic pollutants and can alleviate metal toxicity.

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“…Constructed wetlands remove the emerging contaminants through the complex physical and biogeochemical processes that include volatilization, sorption, sedimentation, phytoremediation, uptake by plants, and microbial destruction. The microbial degradation and adsorption of contaminants in soil, mineral surfaces, and biofilms depend on the physicochemical properties of the chemicals, sorbent properties, pH, temperature, ionic strength, redox species, and the presence of cosolutes [49].…”

Section:  Biological-ecological Processes Descriptionsmentioning

confidence: 99%

Restoration or Rehabilitation of the Faleme River Affected by Mining Activities: What Methods?

Diop,

Mall,

Sonko

et al. 2024

JWARP

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Long-term performance and feasibility of using constructed wetlands for treatment of emerging and nanomaterial contaminants in municipal and industrial wastewater

Cited by 4 publications

References 59 publications

Remediation of Polluted River Water by Biological, Chemical, Ecological and Engineering Processes

Remediation of Polluted River Water by Biological, Chemical, Ecological and Engineering Processes

Role of Microorganisms in the Remediation of Wastewater in Floating Treatment Wetlands: A Review

Restoration or Rehabilitation of the Faleme River Affected by Mining Activities: What Methods?

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