Phosphorus adsorption and removal by sediments of a constructed marsh in Korea

Yoo, Ji‐Hyock; Ro, Hee‐Myong; Choi, Woo‐Jung; Yoo, Sun-Ho; Han, Kyung-Hwa

doi:10.1016/j.ecoleng.2005.12.001

Cited by 45 publications

(16 citation statements)

References 37 publications

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“…The Langmuir K L coefficient ranged from 0.0226 to 0.052 L mg −1 . These data were similar to the low‐Fe wetland soils in subtropical reservoir 32, lower than iron coated sorbents 33 and marsh in Korea 34, and related with different soil physical and chemical characteristics (Tab. 2).…”

Section: Resultssupporting

confidence: 75%

Potential Retention and Release Capacity of Phosphorus in the Newly Formed Wetland Soils from the Yellow River Delta, China

Sun¹,

Xu²,

Shao³

et al. 2012

CLEAN Soil Air Water

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There are few researches on the characteristics of phosphorus (P) in the newly born wetland soils from Yellow River Delta of China. Meanwhile, whether the wetland soils can protect the aquatic ecosystem from excessive P input or not and the risk of P release from the soils to the water quality have generated considerable interests. Through isothermal batch static equilibrium sorption experiments followed by six subsequent extraction steps, the present study assessed the variations in P sorption and desorption properties of the newly born wetland soils in Yellow River Delta. It is found that the P sorption isotherms were nonlinear and the amount of P sorption reached a steady state as P initial concentration added increased in the studied soils. Though the capacity of P retention differed strongly among the studied zone, the soils can protect the aquatic ecosystem from excessive P input to a certain extent degree. From the desorption experiments, it is found that the newly sorbed P was easily desorbed in higher initial added concentration and the desorption P significantly decreased with successive extraction in all samples. The release of P from soil proposed a significant contribution to the water quality and eutrophication of coastal zone. Correlation and regression analyses showed that the amorphous and free Fe/Al oxides, correlated with clay content in the studied soils, were the crucial chemical factors ascribed to the soil P retention and release capacity.

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Section: Resultssupporting

confidence: 75%

Potential Retention and Release Capacity of Phosphorus in the Newly Formed Wetland Soils from the Yellow River Delta, China

Sun¹,

Xu²,

Shao³

et al. 2012

CLEAN Soil Air Water

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“…The maximum adsorption of P in sediment (Qm) can be obtained using the Langmuir equation to evaluate the enrichment degree and release risk of P in the sediment (Huang et al, 2013). These P adsorption values in the sediment in Dongting Lake ranged from 580 to 743 mg kg −1 , which were higher than 32~132 mg kg −1 and 196~281 mg kg −1 reported in sediment from the Indian River Lagoon in Florida (Pant and Reddy, 2001) and from the largest marsh in Korea (Yoo et al, 2006), respectively. This may be attributed to the abundant specific surface area for P adsorption provided by the presence of amorphous Fe and Al in sediment (Jan et al, 2015).…”

Section: The P Adsorption Characteristics In Sedimentmentioning

confidence: 95%

Distribution patterns and dynamics of phosphorus forms in the overlying water and sediment of Dongting Lake

Wang

Liang

2016

Journal of Great Lakes Research

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Communicated by Gerald MatisoffDongting Lake is a typical shallow lake in the lower Yangtze region and is the second largest freshwater lake in China. The distribution, speciation, and sediment release characteristics of phosphorus (P) were investigated by analyzing sediment and water samples collected during high and low flow periods. The average concentration (range) of total phosphorus (TP) in the water was 0.05 mg L −1 (0.02~0.09 mg L −1), while the value in sediment was 703 mg kg −1 (466~869 mg kg). The concentrations of TP and different P forms decreased as depth increased. Inorganic phosphorus was the dominant form of P, accounting for 72% of TP. The bioavailable P was a relatively large portion of TP, indicating a high risk of P release to overlying water. The Langmuir equation can well describe the P isotherm adsorption characteristics in sediment. The amount of P desorption from sediment tended to increase with increasing concentrations of adsorbed P.

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“…(Li & Recknagel, 2006) suggested that plant system enhanced sediments phosphorus adsorption ability but dense plant cover inhibited other important removal mechanisms like uptake by periphyton and coprecipitation. Yoo et al (2006) resulted in understanding that phosphorus retention capacities of constructed wetland sediment was significantly correlated with sediment chemical characteristics (pH, organic matter, and oxalateextractable Al and Fe), and approximately a half of phosphorus contents in drainage sediments was present as loosely bound fractions. The studies of L. Nguyen and J. Sukias in New Zealand (2002) and in Korea by J.H.…”

Section: Total Organic Carbon and Nutrient Contents Of Sedimentsmentioning

confidence: 99%

“…The authors recommend maintaining a moderate density of plants in order to optimise the overall performance of a treatment pond system. Significant decrease in nutrient retention capacity of constructed wetlands is often viewed as an indicator of their ageing (Braskerud, 2002a;Wang et al, 2006;Yoo et al, 2006). Yoo et al (2006) resulted in understanding that phosphorus retention capacities of constructed wetland sediment was significantly correlated with sediment chemical characteristics (pH, organic matter, and oxalateextractable Al and Fe), and approximately a half of phosphorus contents in drainage sediments was present as loosely bound fractions.…”

Section: Total Organic Carbon and Nutrient Contents Of Sedimentsmentioning

confidence: 99%

Formation and properties of sediments in constructed wetlands for treatment of domestic wastewater

Vergeles

Butenko

Ishchenko

et al. 2014

Urban Water Journal

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Sediments formation and biogeochemical properties were studied in an experimental constructed wetland site in Ukraine ("Bioplato") for treatment of domestic effluents. The wetland, with a capacity of 50 m 3 d 21 of wastewater, consists of vertical and horizontal filtrations units with fine gravel, middle and coarse sand, a subsurface flow unit with natural wetland soil applied, and a septic tank and sludge-drying field. Macrophytes, reed (Phragmites australis), cattail (Typha latifolia) and a number of sedge species (Carex spp.) were planted in the area and dominate the average cover of 85 -90%. Treatment efficiency for BOD 5 and suspended solids was 93 -96%, for COD -82%, for nutrients -27 -50%, and for pathogenic microorganisms 99.3-99.6%. Sludge was sampled at each unit followed by standard laboratory analyses of its main characteristics: total organic carbon (TOC), total nutrients (N, P), contents of trace elements, abundance of pathogenic microorganisms, and general toxicity. Results confirmed that the top layer of sludge from each unit of wetland could be used as a source of fertilizers for grain and leguminous crops.

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Phosphorus adsorption and removal by sediments of a constructed marsh in Korea

Cited by 45 publications

References 37 publications

Potential Retention and Release Capacity of Phosphorus in the Newly Formed Wetland Soils from the Yellow River Delta, China

Potential Retention and Release Capacity of Phosphorus in the Newly Formed Wetland Soils from the Yellow River Delta, China

Distribution patterns and dynamics of phosphorus forms in the overlying water and sediment of Dongting Lake

Formation and properties of sediments in constructed wetlands for treatment of domestic wastewater

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