Modelling nitrogen transformation and removal in primary facultative ponds

Senzia, M.; Mayo, Aloyce W.; Mbwette, T.S.A.; Katima, J.H.Y.; Jørgensen, S.E.

doi:10.1016/s0304-3800(02)00018-2

Cited by 56 publications

(30 citation statements)

References 9 publications

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“…A sophisticated model of nutrient flux was developed by Kadlec and Hammer that describes the dynamic changes of P, N, and carbon within wetlands [132]. These processes included mineralization, plant uptake, nitrification, denitrification, and volatilization using coupled differential equations [133]. Event-based simulations are typically used to define limits of nutrient retention under standard conditions for regulatory compliance, and can be informative in comparing performance of design alternatives.…”

Section: Development Of Computational Modelsmentioning

confidence: 99%

Review and Research Needs of Bioretention Used for the Treatment of Urban Stormwater

Liu

Sample

Bell

et al. 2014

Water

220

105

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Abstract:The continued development of urban areas in recent decades has caused multiple issues affecting the sustainability of urban drainage systems. The increase of impervious surface areas in urban regions alters watershed hydrology and water quality. Typical impacts to downstream hydrologic regimes include higher peak flows and runoff volumes, shorter lag times, and reduced infiltration and base flow. Urban runoff increases the transport of pollutants and nutrients and thus degrades water bodies downstream from urban areas. One of the most frequently used practices to mitigate these impacts is bioretention. Despite its widespread use, research on bioretention systems remains active, particularly in terms of mix design and nitrogen treatment. Recent research focusing on bioretention is reviewed herein. The use of mesocosms provides the ability to isolate particular treatment processes and replicate variability. Computational models have been adapted and applied to simulate bioretention, offering potential improvements to their operation, maintenance, and design. Maintenance practices are important for sustained operation and have also been reviewed. Predicting maintenance is essential to assessing lifecycle costs. Within these research areas, gaps are explored, and recommendations made for future work.

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Section: Development Of Computational Modelsmentioning

confidence: 99%

Review and Research Needs of Bioretention Used for the Treatment of Urban Stormwater

Liu

Sample

Bell

et al. 2014

Water

220

105

View full text Add to dashboard Cite

show abstract

“…According to Senzia et al (2002) the main routes for nitrogen transformation in ponds are nitrification, denitrification, ammonia volatilization, net loss to sediments, uptake by microorganisms and mineralization. The CW presented a removal efficiency of 22.3% and the overall removal for the system was 77% (Fig.…”

Section: Nutrient Removal (Ammonia Nitrogen and Total Phosphorus)mentioning

confidence: 99%

Reuse of Treated Sewage Effluent in Airports: Irrigation of Ornamental Plant Nursery

Couto¹,

Assemany²,

Calijuri³

et al. 2013

J. Urb. and Environ. Engng

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Abstract:Airports consume significant amounts of water which can be compared to the volume consumed by mid-size cities, thus practices aimed at reducing water consumption are important and necessary. The objective of this study was to assess the reuse potential of sewage effluent produced at a mid-size international airport for nursery irrigation. The sewage treatment system consisted of a facultative pond followed by a constructed wetland, which were monitored during one hydrological year and the parameters COD, pH, solids, nitrogen, phosphorus and Escherichia coli were analyzed. Removal efficiencies of 85% and 91% were achieved for COD and solids, respectively. Removal efficiencies for ammonia nitrogen and total phosphorus were 77% and 59%, respectively. In terms of E. coli concentration, the treated effluent met the recommendations by the World Health Organization for reuse in irrigation with the advantage of providing high levels of residual nutrient. The ornamental species Impatiens walleriana was irrigated with treated sewage effluent and plant growth characteristics were evaluated. The experiment showed that reuse can enhance plant growth without significantly affecting leaf tissue and soil characteristics. This study highlighted the importance of simple technologies for sewage treatment especially in countries which still do not present great investment in sanitation and proved that effluent reuse for landscape irrigation can provide great savings of water and financial resources for airport environments.

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“…Studies on nitrogen transformation associated with first-order kinetics can be found in Chowdary et al (2004), Clement (2001), Senzia et al (2002) and Vanclooster et al (1995). Senzia et al (2002) presented a dynamic rational model for nitrogen transformation, and investigated the main mechanisms for nitrogen removal in primary facultative ponds.…”

Section: Model Developmentmentioning

confidence: 99%

“…Senzia et al (2002) presented a dynamic rational model for nitrogen transformation, and investigated the main mechanisms for nitrogen removal in primary facultative ponds. In their work, denitrification was modeled using first-order kinetics while nitrification was modeled based on Monod kinetics.…”

Section: Model Developmentmentioning

confidence: 99%