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Coleman, Jerry; Hench, Keith; Garbutt, K.; Sexstone, Alan J.; Bissonnette, Gary K.; Skousen, Jeff

doi:10.1023/a:1010336703606

Cited by 226 publications

(27 citation statements)

References 22 publications

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“…Additional research on interactions between wastewater, wetland media, microorganisms, plants, and temperature in treatment wetlands could help to improve their design and operation in cold regions. Further research should also investigate wastewater treatment with mixed species plantings rather than monocultures (Coleman et al, 2001;Picard et al, 2005). Collectively, such studies will contribute to plant selection for improving treatment wetland function.…”

Section: Resultsmentioning

confidence: 99%

“…A limited number of previous studies have compared different plant species' performance in treatment wetlands (e.g. Gersberg et al, 1986;Coleman, 2001;Fraser et al, 2004). Few have examined plant influences across all seasons (Allen et al, 2002;Picard et al, 2005;Akratos and Tsihrintizis, 2007;Yang et al, 2007) or more than four species at a time (Tanner, 1996;Lin et al, 2002;Iamchaturapatr et al, 2007;and Yang et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Native Plant Material Selection for Water Treatment Wetlands

Taylor¹,

Hook²,

Zabinski³

2009

JASMR

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Treatment wetlands (TWs) are widely used for treating domestic, agricultural, and industrial wastewater, stormwater runoff, and acid mine drainage; natural wetlands are also exposed to these pollutant sources. Currently, few plant species are used in the majority of TWs, and these are often non-native and/or weedy. We are working to identify native species for year-round use in cold-region TWs, particularly the Rocky Mountain region, and explore the basis of differences in performance. In studies presented here, we evaluated chemical oxygen demand (COD) removal from simulated wastewater in microcosms planted with monocultures of 19 species. Experiments were conducted over one year at seasonal temperatures of 4-24°C. With some species and in unplanted controls, COD removal declined at cold temperatures during dormancy, as expected with normal temperature dependence of microbial processes. However, COD removal was constant across seasons with the majority of species. Average COD removal exceeded 90% for Carex aquatilis, C. bebbii, C. praegracilis, C. utriculata, Schoenoplectus acutus, Juncus arcticus, J. torreyi, and Deschampsia cespitosa; of these, only S. acutus is widely used. In contrast, the widely used (and frequently invasive) species T. latifolia, P. australis, and P. arundinacea were somewhat less effective, with average COD removals of 84%, 74%, and 83%, respectively. Redox, sulfate, and root oxygen loss measurements suggest that plant-mediated oxygen transfer may explain the ability of some species to offset the effect of temperature on microbial processes and maintain high COD removal in all seasons. Results indicate that many non-weedy, regionally native species may be candidates for use in TWs or for rehabilitation of natural wetlands exposed to certain pollutants. In addition to the species we studied, other Obligate Wetland and Facultative Wetland species of the Cyperaceae and Juncaceae merit investigation.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Native Plant Material Selection for Water Treatment Wetlands

Taylor¹,

Hook²,

Zabinski³

2009

JASMR

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“…Constructed wetlands are systems in which the plants grown in the system naturally, contribute to wastewater treatment, directly or indirectly, by physicochemical mechanisms (7)(8)(9)(10)(11). Recent studies have shown that vegetation provide significant wastewater treatment efficiency for decreasing chemical oxygen demand (COD), total suspended solids (TSS), nitrogen, phosphorus, and coliforms (12). Some studies reported that removal of pollutants including biochemical oxygen demand (BOD), TSS, nitrogen, phosphate, and coliforms in wetlands is due to physical and biological processes (sedimentation and microbial degradation) principally by aerobic bacteria attached to plant roots (13)(14)(15).…”

Section: Introductionmentioning

confidence: 99%

Removal efficiency of nitrate, phosphate, fecal and total coliforms by horizontal subsurface flow-constructed wetland from domestic wastewater

Kalankesh

Rodríguez‐Couto

Shahama

et al. 2019

Environ Health Eng Manag

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Background: Constructed wetlands are systems designed based on the utilization of natural processes, including vegetation, soil, and their associated microbial assemblage to assist in treating different types of wastewater. Methods: Two local Appalachian plants (Louis latifolia and Phragmites australis) were planted into smallscale constructed wetlands to treat domestic wastewater in the North of Iran. The influent wastewater and the effluent from each wetland were sampled daily for 120 days. Experiments were conducted based on the mean ± standard deviation (SD) by analysis of variance (ANOVA). Results: It was found that nitrate, phosphate, fecal and total coliforms were reduced by 84.4%, 94.4%, 96.3%, 93.9% for P. australis and 73.3%, 64.0%, 94.4%, 92.1% for L. latifolia, respectively. Conclusion: According to the results, by using the HF-CW technology with L. latifolia and P. australis plants, the treated wastewater fully meets the wastewater discharge parameters of WHO standards.

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“…Wetland plants improve water quality by reducing water flow through nutrient uptake and by providing support for microbial populations (Reddy and De Busk 1985;Brueske and Barrett 1994;Allen et al 2002). Plants can influence their environment by increasing oxygen concentration in the rhizosphere, releasing carbohydrates and amino acids as exudates, providing additional surfaces and space for growth and by proliferation of microorganisms (Wetzel 1990;Coleman et al 2001;Allen et al 2002).…”

Section: Introductionmentioning

confidence: 99%

Iron plaque formation on wetland plants and its influence on phosphorus, calcium and metal uptake

2009

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We investigated Fe plaque formation and Ca, Cu, Mn, Zn, and P uptake capacities of fifteen kinds of wetland plants. The test plants were cultured in 3 l nutrient solutions for 8 days. Fe plaque was induced by adding 200 mg l -1 Fe 2? as FeSO 4 Á7H 2 O for 4 days in one set of experiment and 8 days in another. This plaque ranged from 2.38 to 8.67 mg g -1 of plant root after 4 days and from 4.56 to 15.71 mg g -1 of plant root after 8-day treatment. In both experimental durations, the plaque was significantly correlated with root surface area (r = 0.904 and 0.878, P \ 0.01). Thus, Canna generalis, Typha latifolia and Thalia dealbata, with their larger root surface areas ([1,400 cm 2 ), formed relatively greater Fe plaque amounts. The amounts of Ca, Cu, Zn and P in the Fe plaques were significantly correlated with Fe plaque amount, (r = 0.819, 0.742, 0.693, 0.917, respectively, for these four elements for the 4-day treatment; and r = 0.917, 0.768, 0.949, 0.872, respectively, for 8-day treatment, P \ 0.01). Plants varied widely in accumulating Ca, Cu, Mn, Zn, and P in their tissues. The amounts accumulated on root were significantly correlated with Fe plaque amount in both for 4-and 8-day exposure treatments with Fe (r = 0.973, 0.847, 0.709, 0.837, 0.892, respectively, for 4-day treatment; and r = 0.943, 0.691, 0.843, 0.957, 0.983, respectively, for 8-day treatment, P \ 0.01). No such significant correlations were found for the Fe plaque in shoot. Canna generalis, Typha latifolia and Thalia dealbata were superior in Ca, P and Zn uptake, while Canna generalis and Thalia dealbata accumulated Cu and Mn well in case of concentrated wastewater treatment.

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Untitled

Cited by 226 publications

References 22 publications

Native Plant Material Selection for Water Treatment Wetlands

Native Plant Material Selection for Water Treatment Wetlands

Removal efficiency of nitrate, phosphate, fecal and total coliforms by horizontal subsurface flow-constructed wetland from domestic wastewater

Iron plaque formation on wetland plants and its influence on phosphorus, calcium and metal uptake

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