The role of free water surface constructed wetlands as polishing step in municipal wastewater reclamation and reuse

Ghermandi, Andrea; Bixio, D.; Thoeye, C.

doi:10.1016/j.scitotenv.2006.12.038

Cited by 79 publications

(47 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, it was imperative to develop alternative technologies that are economical as well as eco-friendly. In recent years, aquatic macrophytes have been used worldwide for the removal of toxic pollutants, including heavy metals and pharmaceutical products from industrial effluent and municipal wastewater (Allende et al 2011;Augustynowicz et al 2010;Bonano 2012;Caselles-Osorio and Garcia 2007;Cui et al 2011;Ghemandi et al 2007;Hua et al 2013;Langergraba 2005;Maine et al 2009;Marchand et al 2010;Ong et al 2010;Ranieri et al 2011;Saeed and Sun 2012;Tang et al 2010;Vymazal 2005;Wen et al 2010;Wojciechowska and Waara 2011;Xue et al 2010;Zhang et al 2012). Main mechanisms of removal of heavy metals by aquatic plants are plant uptake, precipitation and co-precipitation as insoluble salts, and binding to the substrate (Brix 1994;Ranieri et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Effect of Phragmites australis and Typha latifolia on biofiltration of heavy metals from secondary treated effluent

Kumari

Tripathi

2014

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

The present work deals with a promising approach for the removal of heavy metals from secondary treated wastewater using aquatic plants, which are economic and effective in separating metals from polluted water. Since the conventional sewage treatment processes were inefficient to remove heavy metals from wastewater, batch experiments of Phragmites australis, Typha latifolia and P. australis and T. latifolia grown in association and reference (unplanted) were carried out for 15 days of retention time for the removal of copper (Cu), cadmium (Cd), chromium (Cr), nickel (Ni), iron (Fe), lead (Pb), and zinc (Zn) from the secondary treated effluent. Significantly, higher removal of the heavy metals in planted set than the reference revealed role of plants in their removal (analysis of variance, p \ 0.05). Higher removal of Cr, Fe, and Zn (66.2 ± 3.5, 70.6 ± 1.2, and 71.6 ± 3.9 %) in the combination of the P. australis and T. latifolia than their individual culture suggested synergistic effect of both the plants in the removal of these metals. Positive relationship was observed between retention time and the removal of heavy metals. Mass balance equation has revealed that the loss of heavy metals in wastewater was equivalent to the net accumulation of heavy metals in plant and loss of heavy metals in natural degradation. P. australis showed higher accumulative capacities for Cu, Cd, Cr, Ni, Fe, and Pb than those of T. latifolia. The P. australis and T. latifolia grown in association might be utilized for the heavy metal removal in the tropical environment.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Phragmites australis and Typha latifolia on biofiltration of heavy metals from secondary treated effluent

Kumari

Tripathi

2014

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…The buildup of sediment from wastewater and the accretion of peat from decomposed vegetation affect the operation of the CTWs. Over the past several decades, FWSCTWs have been used extensively throughout North America and many are in operation in Australia, Asian, and European countries (Ghermandi et al 2007;Kadlec and Wallace 2009). Using FWS-CTWs for water quality improvement is cost effective and environmentally sound.…”

Section: Futurementioning

confidence: 99%

Role of Wetlands

Dhir

2013

Phytoremediation: Role of Aquatic Plants in Environmental Clean-Up

View full text Add to dashboard Cite

“…It is important to consolidate the knowledge and experience gained from the many CW studies that have been conducted and summarize the regional performance and wastewater source data. Literature reviews [4][5][6][7], factsheets (e.g., [8]) and databases [1,9,10] are available for various regions and wastewater types, but, presently, a review of CW performance treating agricultural wastewater and wash water in northeastern North America does not exist. The purpose of this review is to consolidate CW research and assess their performance for agricultural applications in this region.…”

Section: Introductionmentioning

confidence: 99%

Constructed Wetlands for Agricultural Wastewater Treatment in Northeastern North America: A Review

Rozema

VanderZaag

Wood

et al. 2016

Water

View full text Add to dashboard Cite

Constructed wetlands (CW) are a treatment option for agricultural wastewater. Their ability to adequately function in cold climates continues to be evaluated as they are biologically active systems that depend on microbial and plant activity. In order to assess their performance and to highlight regional specific design considerations, a review of CWs in Eastern Canada and the Northeastern USA was conducted. Here, we synthesize performance data from 21 studies, in which 25 full-scale wetlands were assessed. Where possible, data were separated seasonally to evaluate the climatic effects on treatment performance. The wastewater parameters considered were five-day biochemical oxygen demand (BOD 5 ), total suspended solids (TSS), E. coli, fecal coliforms, total Kjeldahl nitrogen (TKN), ammonia/ammonium (NH 3 /NH 4 + -N), nitrate-nitrogen (NO 3´-N), and total phosphorus (TP). Average concentration reductions were: BOD 5 81%, TSS 83%, TKN 75%, NH 4 + -N 76%, NO 3´-N 42%, and TP 64%. Average log reductions for E. coli and fecal coliforms were 1.63 and 1.93, respectively. Average first order areal rate constants (k a , m¨y´1) were: BOD 5 6.0 m¨y´1, TSS 7.7 m¨y´1, E. coli 7.0 m¨y´1, fecal coliforms 9.7 m¨y´1, TKN 3.1 m¨y´1, NH 4 + -N 3.3 m¨y´1, NO 3´-N 2.5 m¨y´1, and TP 2.9 m¨y´1. In general, CWs effectively treated a variety of agricultural wastewaters, regardless of season.

show abstract

The role of free water surface constructed wetlands as polishing step in municipal wastewater reclamation and reuse

Cited by 79 publications

References 18 publications

Effect of Phragmites australis and Typha latifolia on biofiltration of heavy metals from secondary treated effluent

Effect of Phragmites australis and Typha latifolia on biofiltration of heavy metals from secondary treated effluent

Role of Wetlands

Constructed Wetlands for Agricultural Wastewater Treatment in Northeastern North America: A Review

Contact Info

Product

Resources

About