Bioenergy production potential for aboveground biomass from a subtropical constructed wetland

Wang, Yi‐Chung; Ko, Chun-Han; Chang, Feng-Cheng; Chen, Pen-Yuan; Liu, Tzu-Fen; Sheu, Yiong-Shing; Shih, Tzenge‐Lien; Teng, Chia-Ji

doi:10.1016/j.biombioe.2010.08.032

Cited by 33 publications

(13 citation statements)

References 11 publications

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“…Literature agrees that the factors which most affect the production and use of plant biomass are related to harvesting time, type of species and wastewater quality. Various studies have focused on the effects of biomass harvesting on CW performance in terms of carbon sequestration, nutrient removal and pathogen control, and have also examined the impacts of harvesting time on biomass yield [24–25, 64]. However, the concept of wetland biomass as a source of bioenergy has rarely been reported in literature and detailed research is lacking [65–66].…”

Section: Resultsmentioning

confidence: 99%

Research focusing on plant performance in constructed wetlands and agronomic application of treated wastewater – A set of experimental studies in Sicily (Italy)

et al. 2019

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Constructed wetlands are sustainable technologies for the treatment of wastewater. These biological systems have been widely studied throughout the world for more than 30 years; however, most studies have focused on the effects of design and engineering on pollutant removal from wastewater. Undoubtedly, agro-technical aspects have been given too little consideration by research. This paper reports the main results of a set of experiments carried out on two pilot horizontal subsurface flow systems in Sicily (Italy). Festuca , Lolium and Pennisetum spp. in combination and three emergent macrophytes– Arundo donax L., Cyperus alternifolius L. and Typha latifolia L.–alone, were assessed. The aim of the study was to demonstrate that, under predetermined hydraulic and design conditions, the choice of plant species and the management of the vegetation can significantly affect the pollutant removal performance of constructed wetlands. In addition, wastewater (after treatment) can also be used for agricultural purposes leading to increased sustainability in agricultural systems. Arundo and Typha -planted units performed better than Cyperus -planted units in terms of chemical, physical and microbiological contaminant removal. All the species adapted extremely well to wetland conditions. Polyculture systems were found to be more efficient than monocultures in the removal of dissolved organic compounds. The reuse of treated wastewater for the irrigation of open fields and horticultural crops led to significant savings in the use of freshwater and fertilizers. The results of physical-energy characterization of A . donax above-ground plant residues and pellets highlighted the fact that a constructed wetland could also be a potential source of bioenergy.

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Section: Resultsmentioning

confidence: 99%

Research focusing on plant performance in constructed wetlands and agronomic application of treated wastewater – A set of experimental studies in Sicily (Italy)

et al. 2019

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“…Management of Typha often includes removal of biomass (Fig. 9d), and recent research and reviews have examined the potential use of this biomass as a biofuel crop (Dubbe et al 1988;Ciria et al 2005;Wang et al 2011;Grosshans et al 2013;Grosshans 2014;Grosshans et al 2014;Elhaak et al 2015;Rahman et al 2015;Svedarsky et al 2016;Ahmad et al 2017;Berry et al 2017;Rebaque et al 2017;Carson et al 2018). In a review of Typha management in the northern Great Plains, Svedarsky et al (2016) highlighted numerous advantages that Typha has over other sources of biomass, including that it occurs in wetland areas that are not suitable for conventional agriculture, it is quickly renewable, it is a Cneutral resource, tillage and replanting are typically not required, and harvesting Typha can improve wetland habitats.…”

Section: Biomass Harvestmentioning

confidence: 99%

Typha (Cattail) Invasion in North American Wetlands: Biology, Regional Problems, Impacts, Ecosystem Services, and Management

et al. 2019

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Typha is an iconic wetland plant found worldwide. Hybridization and anthropogenic disturbances have resulted in large increases in Typha abundance in wetland ecosystems throughout North America at a cost to native floral and faunal biodiversity. As demonstrated by three regional case studies, Typha is capable of rapidly colonizing habitats and forming monodominant vegetation stands due to traits such as robust size, rapid growth rate, and rhizomatic expansion. Increased nutrient inputs into wetlands and altered hydrologic regimes are among the principal anthropogenic drivers of Typha invasion. Typha is associated with a wide range of negative ecological impacts to wetland and agricultural systems, but also is linked with a variety of ecosystem services such as bioremediation and provisioning of biomass, as well as an assortment of traditional cultural uses. Numerous physical, chemical, and hydrologic control methods are used to manage invasive Typha, but results are inconsistent and multiple methods and repeated treatments often are required. While this review focuses on invasive Typha in North America, the literature cited comes from research on Typha and other invasive species from around the world. As such, many of the underlying concepts in this review are relevant to invasive species in other wetland ecosystems worldwide.

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“…Their operation and maintenance is very simple and they hold costs of O&M well below those produced in conventional wastewater treatment plants. They can be constructed out of local materials, and present great adaptability and resilience, providing multiple ecosystem services and even acting as revenue generators (Hansson et al, 2012;Ni et al, 2016;Wang et al, 2015). In recent decades the CW technology has rapidly evolved through the use of various designs and operational modes or other intensifications so as to improve effluent water quality with respect to various pollutants (i.e.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of total nitrogen removal through effluent recirculation and fate of PPCPs in a hybrid constructed wetland system treating urban wastewater

Ávila

Pelissari

Sezerino

et al. 2017

Science of The Total Environment

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The effect of effluent recirculation on the removal of total nitrogen (TN) and eight pharmaceuticals and personal care products (PPCPs) was evaluated during 9months in an experimental hybrid constructed wetland (CW) system applied in the treatment of urban wastewater. An Imhoff tank was followed by three stages of CWs (two 1.5-m vertical subsurface flow (VF) beds alternating feed-rest cycles, a 2-m horizontal (HF) and a 2-m free water surface (FWS) wetland in series). A fraction of the final effluent was recycled back to the Imhoff tank with a recirculation rate of 50% (hydraulic loading rate=0.37md). The system's performance varied throughout the study. In Period I (summer) consistently high load removal efficiencies of TN (89±5%) and a removal rate of 6.6±1.4gTNmd were exhibited. In Period II (fall), the poor performance of the FWS during the senescence of macrophytes caused a large increase in organic matter, solids and nutrient concentrations, drastically deteriorating water quality. The determination of PPCPs was conducted during this period. Recalcitrant compounds, namely sulfamethoxazole, carbamazapine, TCEP and sucralose were negligibly removed in all CWs. However, noteworthy was the ≈30% removal of sucralose in the VF wetland. Caffeine (80%) and fluoxetine (27%) showed similar elimination rates in both VF and HF units, whereas trimethoprim and DEET were significantly better removed in the VF than in the HF. The concentration of the four latter compounds showed a severe increase in the FWS, indicating possible desorption from the sediment/biomass during adverse conditions. Harvesting of the aboveground biomass in this unit returned the system's performance back to normality (Period III), achieving 77±7% TN removal despite the winter season, proving effluent recirculation as an effective strategy for TN removal in hybrid CW systems when stringent restrictions are in place.

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Bioenergy production potential for aboveground biomass from a subtropical constructed wetland

Cited by 33 publications

References 11 publications

Research focusing on plant performance in constructed wetlands and agronomic application of treated wastewater – A set of experimental studies in Sicily (Italy)

Research focusing on plant performance in constructed wetlands and agronomic application of treated wastewater – A set of experimental studies in Sicily (Italy)

Typha (Cattail) Invasion in North American Wetlands: Biology, Regional Problems, Impacts, Ecosystem Services, and Management

Enhancement of total nitrogen removal through effluent recirculation and fate of PPCPs in a hybrid constructed wetland system treating urban wastewater

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