Use of Floating Vegetation to Remove Nutrients From Swine Lagoon Wastewater

Hubbard, R. K.; Gascho, G. J.; Newton, G. L.

doi:10.13031/2013.17809

Cited by 83 publications

(33 citation statements)

References 17 publications

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“…Another species already tested in floating treatment wetlands around the world (Smith & Kalin, 2000;Hubbard et al, 2004). A herbaceous perennial plant with rhizomes.…”

Section: Typha Latifolia L (Broadleaf Cattail)mentioning

confidence: 99%

“…Dealing with acid mine drainage, the problem is the huge amount of metals (copper and zinc) and sulfates; Smith & Kalin (2000) provide data of some applications in Canada. Hubbard et al (2004) used a floating system for treatment of swine lagoon wastewater and the calculated percentages of nutrients removed from the root zone by the floating mats were: total N 43-52%, total P 34-41%, K 127-160% (Calculations of percent nutrient removal were made assuming a set rooting zone depths, where is greater than 100 natural mixing of nutrients within the experiment tank would have provided nutrients in addition (Hubbard et al, 2004).) An example of river treatment from wastewater comes from China, on the Pearl River in Guangzhou.…”

Section: Introductionmentioning

confidence: 99%

“…The structures that guarantee buoyancy can be sealed polyvinyl chloride or polypropylene pipes, polystyrene sheets, bamboo, inflatable vinyl pillows, polystyrene foam in a polyester matrix, and the internal structure can be filled with coconut fiber, bamboo reed net, or other material. It is possible to have frames that support a growth medium for the plants, but in others these are planted directly into the floating mats without additional planting media (Hoeger, 1988;Smith & Kalin, 2000;Hubbard et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

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Performance of a floating treatment wetland for in-stream water amelioration in NE Italy

et al. 2011

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Floating treatment wetlands are innovative systems and their processes are still scarcely known within the traditional methods of phytodepuration. To gain initial information on their performance and potential in removing pollutants, two experiments have been conducted in northeast Italy, in a Natural Park with resurgent water. Barriers formed by a new patented floating element were tested in real climatic and water flow conditions. One experiment was conducted in a channel receiving aquaculture effluents, while the other was set in two cleaner channels to test two installation designs (two barriers composed of two lines of elements-2 9 2 design and two composed of three lines of elements-2 9 3 design). Different macrophyte species were used (Phragmites australis, Carex elata, Juncus effusus, Typha latifolia, Chrysopogon zizanioides, Sparganium erectum, and Dactylis glomerata). The floating systems were easily installed and required few maintenance operations. Native plants grew successfully, developing roots 90-135 cm deep 1 year after planting. Conversely, Chrysopogon zizanioides showed scarce adaptation to local conditions. In the first experiment, median chemical oxygen demand (COD) in water passing through the floating wetland system was reduced by 66%, biochemical oxygen demand by 52%, and total phosphorus by 65%. In the second experiment, the 2 9 3 design had a slightly better performance than 2 9 2 in reducing COD (38 and 28% of removal, respectively). The two designs performed similarly on NO 3 -N, reducing the incoming concentrations by 12% (2 9 3 design) and 14% (2 9 2). This form of nitrogen represents almost all the total nitrogen, which was abated by 13% by the 2 9 3 design and by 29% by 2 9 2 design.

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“…Another species already tested in floating treatment wetlands around the world (Smith & Kalin, 2000;Hubbard et al, 2004). A herbaceous perennial plant with rhizomes.…”

Section: Typha Latifolia L (Broadleaf Cattail)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance of a floating treatment wetland for in-stream water amelioration in NE Italy

et al. 2011

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“…Ghobrial and Siam 1998;Ash and Truong 2003;Todd et al 2003), acid mine drainage treatment (e.g. Smith and Kalin 2000), piggery effluent treatment (e.g., Ash and Truong 2003;Hubbard et al 2004), poultry processing wastewater treatment (e.g., Todd et al 2003), and water supply (e.g., Garbett 2005;Dong et al 2013). FTWs have proved to be effective in removing suspended solids, nutrients, and heavy metals like copper, zinc, and cadmium (Headley et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Assessing the effectiveness of pollutant removal by macrophytes in a floating wetland for wastewater treatment

et al. 2017

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The study aimed to evaluate the removal of pollutants by floating treatment wetlands (FTWs) using an edible floating plant, and emergent macrophytes. All experiments were performed under ambient conditions. Physico-chemical parameters were measured, along with microbiological analysis of biofilm within the roots, water column, and sludge and gravel zone. Nitrification and denitrification rates were high in the water zone of Azolla filiculoides, Lemna minor, Lactuca sativa, P. stratiotes, and Phragmites australis. Phosphate removal efficiencies were 23, 10, and 15% for the free-floating hydrophytes, emergent macrophytes, and control and edible plants, respectively. The microbial community was relatively more active in the root zone compared to other zones. Pistia stratiotes was found to be the efficient in ammonium (70%) and total nitrogen (59%) removal. Pistia stratiotes also showed the highest microbial activity of 1306 mg day -1 , which was 62% of the total volume. Microbial activity was found in the water zone of all FTWs expect for P. australis. The use of P. stratiotes and the edible plant L. sativa could be a potential option to treat domestic wastewater due to relatively high nutrient and organic matter removal efficiency.

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“…The technology potential is mostly mentioned in the literature in relation to variable waste water flow rates (Hubbard et al, 2004;Todd et al, 2003). There the CFWs are intended to retain mainly suspended solids in the unified sewer and rainwater drainages.…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Possibilities of Small Water Reservoir Impact Improvement on Surface Water Quality in Agricultural Landscape

Dunajský¹,

Němcová²,

Konečná³

et al. 2018

Acta Univ. Agric. Silvic. Mendelianae Brun.

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In the Czech Republic, a significant amount of agricultural landscape nutrients is swept away by surface washes and leakages to subsoil. Subsequently there is a negative influence on surface water quality, where of course also point sources of pollution participate in. Flowing surface water often becomes stagnant while the certain self-purifying processes proceed both in the flowing and stagnant waters. It can be simultaneously stated that the self-purifying process is practically uncontrollable, primarily due to the impact of many entering factors. One of the environmental and technical elements providing quality improvement of water running off a water reservoir is deployment of constructed floating wetlands (CFW). The theoretical background, as well as the laboratory measurements carried out on the test land of the Brno University of Technology in experimental tanks, evidence the significant treatment efficiency of the CFW. Within the research activities, we focused on the general pollution parameters set for surface waters. The first results show that the total phosphorus concentration removal efficiency is 38.8 % after 22 days with employment of the CFW which is a considerably higher value compared to the lysimeter with no CFW where the removal efficiency was only 4.37 %. The results can be large-scale applied to most of the small water reservoirs situated in the agricultural landscape.

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Use of Floating Vegetation to Remove Nutrients From Swine Lagoon Wastewater

Cited by 83 publications

References 17 publications

Performance of a floating treatment wetland for in-stream water amelioration in NE Italy

Performance of a floating treatment wetland for in-stream water amelioration in NE Italy

Assessing the effectiveness of pollutant removal by macrophytes in a floating wetland for wastewater treatment

Possibilities of Small Water Reservoir Impact Improvement on Surface Water Quality in Agricultural Landscape

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