Nutrient dynamics and growth of a cattail crop (Typha latifolia L.) Developed in an effluent with high eutrophic potential — application to wastewater purification systems

Martín, Isabel López; Fernández, J. C. Giménez

doi:10.1016/0960-8524(92)90081-8

Cited by 29 publications

(15 citation statements)

References 12 publications

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“…Horizontal subsurface constructed wetlands (SSFCWs) have become the mainstream of constructed wetland due to their their greater treatment capacity and insusceptible to the changes of the environmental conditions (Martin & Fernandez 1992;Srinivasan et al 2000;Jing & Lin 2004). Therefore it should be of great practical value to improve the performance of SSFCW.…”

Section: Introductionmentioning

confidence: 99%

A new operation mode solving clogging problems of horizontal subsurface constructed wetlands

Shen

Yang

Dong

2010

Water Science and Technology

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Horizontal subsurface constructed wetland (SSFCW) has been widely used to treat wastewater, however the capacity of SSFCW is severely confined by clogging problems which are very common during the lifespan of a SSFCW. Therefore it is of great practical significance to improve the performance of SSFCW. In this study, a new operation mode by changing the flow direction periodically was executed and the performance on the pollutants removal was studied. Three years' experimental results showed that the SSFCW with new operation mode achieved better pollutant removal efficiency compared with the performance obtained under traditional operation mode. The microorganism test showed that the reciprocating SSFCW had larger quantity microorganism which effectively prevented organic compounds accumulation. The readings of gauge glass in the traditional SSFCW rose gradually, while the water level kept stable in reciprocating one, which also reflected the severity of the clogging problem in the two wetlands. During the whole operation period, the SSFCW with reciprocating operation mode didn't have any infiltration problem, while SSFCW with traditional operation mode had visible clogging problems as a result of pollutants accumulation in the inlet zone.

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Section: Introductionmentioning

confidence: 99%

A new operation mode solving clogging problems of horizontal subsurface constructed wetlands

Shen

Yang

Dong

2010

Water Science and Technology

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“…Even though, growth of Typha spp. under wastewater conditions has been well studied, most studies were conducted in the temperate climate [36][37][38][39][40][41]. Us-ing that information as guidelines may not be suitable for the CWs in the tropical regions as the local climate is different.…”

Section: Introductionmentioning

confidence: 99%

Treatment of Anaerobic Digester Effluent Using <i>Typha angustifolia</i> L.: Growth Responses and Treatment Efficiency

Pincam

Jampeetong

2020

J. of Wat. & Envir. Tech.

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Constructed wetlands are an eco-friendly technology used for decades for treating various types of wastewater. To gain new insight into plant selection for wastewater treatment systems in tropical areas, this research investigated growth and ecophysiological responses of Typha angustifolia to different concentrations of anaerobic digester effluent from a swine farm and assessed their influence on wastewater treatment effectiveness. Twelve plants (n = 4 per treatment) were separately grown in 3 concentrations of wastewater (25% and 50% diluted wastewater and undiluted wastewater). All plants grew well in all concentrations. However, the plants tended to have reduced root biomass, root length and decreased pigment contents when exposed to high concentrations. High removal efficiency for electrical conductivity, total dissolve solids, total suspended solids, biochemical oxygen demand, chemical oxygen demand, ammonium nitrogen and orthophosphate was found (73%, 70%, 93%, 99%, 82%, 99% and 80%, respectively, from undiluted wastewater). The dissolved oxygen concentration in the anaerobic digester effluent increased over time because of released root oxygen. The study showed that T. angustifolia developed aerenchyma in its root cortex even under stress conditions. This ability makes this plant tolerant to high strength wastewater. Furthermore, oxygen released from its roots also supports growth of microorganisms and enhances microbial biodegradation processes leading to highly efficient treatment systems.

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“…Although plants can take up only a fraction of the nutrients in the sediment compared with biological denitrification treatment, harvesting at the proper time increases the efficiency of wastewater treatment in wetland and aquatic systems (Reddy and Debusk 1987;Vymazal 2005). Nitrogen (N) is the primary limiting nutrient in most wastewater (Martín and Fernández 1992): the most common macronutrient necessary for plant growth and one that often limits vegetative productivity (Hocking 1989a;Hopkinson and Schubauer 1984;Haslam 1973;Boyd and Hess 1970). Finding the best time to harvest shoots to remove nutrients such as N is a key issue in wetlands management or wastewater treatment, but care should be taken because excessive removal sometimes suppresses the growth of plants (Granéli 1990).…”

Section: Introductionmentioning

confidence: 99%

Estimating nitrogen budgets of Typha angustifolia by considering the regrowth shoot productivity and nitrogen content after harvesting aerial organs in different growing seasons

Das

Tanaka

2007

Landscape Ecol Eng

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A dynamic model that includes regrowth after harvesting aerial shoots of an emergent macrophyte, Typha angustifolia L., was applied to evaluate the nitrogen (N) budget and the N uptake by the plant from sediment in Shibakawa Pond, Japan. Under natural conditions (control/ uncut stands), the analysis showed that the annual uptake of N from sediment was 26.6 gN/m 2 and harvesting Typha shoots at their growth peak removed 29.0 gN/m 2 from the system (142 days in summer). Harvesting in winter after weathering of leaves removed only 13.9 gN/m 2 . To evaluate the N budget considering regrowth shoot characteristics, three sets of harvesting experiments were done on 16 May, 8 July, and 5 August 2003. Our study revealed that May, July, and August harvesting removed 9.4, 21.9, and 16.3 gN/m 2 , respectively. Further, combining the first harvesting from spring to summer and the second harvesting in autumn (before the start of senescence of regrowth shoots), the annual total N removals in stands cut in May and autumn and July and autumn were 34.7 and 36.0 gN/m 2 , respectively-higher than that in stands cut in August and autumn (22.2 gN/m 2 ) or that in uncut stands (13.9 gN/m 2 ). At the same time, the amounts stored in rhizomes by stands cut in May and autumn, July and autumn, and August and autumn were 9.1, 8.4, and 4.4 gN/m 2 , respectively, lower than that in uncut stands (18.8 gN/m 2 ). Our results suggest that summer harvesting, especially in July to August, improves N removal efficiency and decreases the translocation of N from primary shoots to rhizomes, which is important for the sustainable management of Typha-dominated wetlands. Combined summer and autumn harvests further increase the removal efficiency but drastically reduce the storage of N. This might be useful when we need to control the plants properly.

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Nutrient dynamics and growth of a cattail crop (Typha latifolia L.) Developed in an effluent with high eutrophic potential — application to wastewater purification systems

Cited by 29 publications

References 12 publications

A new operation mode solving clogging problems of horizontal subsurface constructed wetlands

A new operation mode solving clogging problems of horizontal subsurface constructed wetlands

Treatment of Anaerobic Digester Effluent Using <i>Typha angustifolia</i> L.: Growth Responses and Treatment Efficiency

Estimating nitrogen budgets of Typha angustifolia by considering the regrowth shoot productivity and nitrogen content after harvesting aerial organs in different growing seasons

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