Numerical Modelling of Waste Stabilization Ponds: Where Do We Stand?

Sah, Leena; Rousseau, Diederik; Hooijmans, Christine M.

doi:10.1007/s11270-012-1098-4

Cited by 44 publications

(29 citation statements)

References 36 publications

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“…With the constant evolution of software, modeling waste stabilization ponds could experience further advancement. Sah et al (2012) agreed with this sentiment. In addition, the authors recommended that upto-date full-scale data should be available to verify the accuracy of the models (Sah et al 2012).…”

Section: Modelingmentioning

confidence: 67%

“…CFD models the performance of the pond in removing nutrients, BOD, sedimentation, and pathogens. CFD can vary with meteorological conditions, pond orientation, and design adjustments (Sah et al 2012). CFD benefits the researcher insomuch as he or she is able to determine how varying the effects of conditions within waste stabilization ponds would affect the performance of removing various constituents.…”

Section: Modelingmentioning

confidence: 99%

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Oxidation pond for municipal wastewater treatment

et al. 2015

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This literature review examines process, design, and cost issues related to using oxidation ponds for wastewater treatment. Many of the topics have applications at either full scale or in isolation for laboratory analysis. Oxidation ponds have many advantages. The oxidation pond treatment process is natural, because it uses microorganisms such as bacteria and algae. This makes the method of treatment cost-effective in terms of its construction, maintenance, and energy requirements. Oxidation ponds are also productive, because it generates effluent that can be used for other applications. Finally, oxidation ponds can be considered a sustainable method for treatment of wastewater.

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Section: Modelingmentioning

confidence: 67%

Section: Modelingmentioning

confidence: 99%

Oxidation pond for municipal wastewater treatment

et al. 2015

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“…This has led to an urgent need to manage large volumes of biosolids under the increasingly strict environmental regulations and license operation conditions imposed upon water utilities and other wastewater operators. The hydraulic inefficiency of WSPs is a problem that increases in severity over time, as long-term hydraulic performance of ponds is increasingly compromised as sludge accumulates, which results in reduced effective treatment volume and changes in bottom bathymetry (Nelson, Cisneros, Tchobanoglous, & Darby, 2004;Olukanni & Ducoste, 2011;Peña, Mara, & Sanchez, 2000;Persson, 2000;Persson, Somes, & Wong, 1999;Persson & Wittgren, 2003;Sah, Rousseau, & Hooijmans, 2012). In turn, the build-up of sludge in these systems contributes to the complexity of pond hydrodynamics (Faleschini, Esteves, & Valero, 2012); for example, pond features such as channels can result in short-circuiting of flow and reduced mean hydraulic residence time (Figure 3).…”

Section: Sludge Accumulation and Pond Hydraulicsmentioning

confidence: 99%

The small, the big, and the beautiful: Emerging challenges and opportunities for waste stabilization ponds in Australia

2019

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Waste stabilization ponds (WSPs) are used extensively for the treatment of wastewater in Australia, mostly in regional and remote areas. Wastewater treatment plants (WWTPs) using pond technologies are also distributed over the full geographical extent of Australia, encompassing many climatic zones. Predominantly used to service small to medium‐sized communities, WSPs are also used to service large metropolitan Australian populations, up to 2.5 million people. When well‐maintained, WSPs are a sustainable and resilient treatment option, and treatment is achieved at significantly lower cost when compared with conventional WWTPs. Increasing population, changing regulations, and climate variability are placing increasing pressure on Australian WSP systems. Sludge accumulation over time presents a significant challenge to pond maintenance, along with increasing occurrence of toxic cyanobacterial bloom events. These challenges are only enhanced by the wide geographical distribution and by increasing operational and maintenance costs. Increased demand for recycled water is placing further pressure on Australian WSP systems, as higher value treated water is expected from WSP infrastructure that is often overloaded or under‐designed. This increased demand for high‐quality treatment presents an opportunity for operators and researchers to develop a better understanding of the coupling between hydraulics and microbial ecology of these systems. With more stringent guidelines for greenhouse gas emissions (GHGs), a better understanding of biophysicochemical processes in WSPs will lead to better estimates of GHG fluxes and variability. This information will become critical for the future planning, maintenance and operation of WSPs, and will result in a better understanding of WSP systems overall. This article is categorized under: Engineering Water > Water, Health, and Sanitation Engineering Water > Sustainable Engineering of Water

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“…La eficiencia media de remoción de la DBO fue del 76,6%, inferior a la mínima establecida por la legislación ambiental brasilera. El número más probable de coliformes fecales en el efluente fue de 6,34x10 5 /100mL, que superó en gran medida los valores máximos permitidos para vertimientos en cuerpos receptores. La planta requiere de la implementación de un sistema de pre-tratamiento, de la remoción de los lodos acumulados en las zonas más críticas y la implementación de un sistema de postratamiento que garantice remoción adicional de DBO y coliformes para ajustarse a la normatividad ambiental.…”

Section: Introductionunclassified

“…Según Peña y Mara [4], las lagunas de estabilización son usualmente el más apropiado método para el tratamiento de AR domésticas y municipales en países en vías de desarrollo, donde el clima es más favorable para su operación. Estas presentan alta eficiencia y funcionamiento totalmente natural altamente sustentable; usualmente requieren bajos costos de inversión y poseen bajos costos de operación y mantenimiento [5]; de igual manera, asimilan grandes variaciones de caudal y realizan el tratamiento con eficiencias similares a las logradas por los sistemas convencionales, produciendo un efluente altamente purificado con costos muy inferiores [1].…”

Section: Introductionunclassified

Levantamiento batimétrico de la plata de tratamiento de aguas residuales de Neves Paulista

Ortiz¹,

Matsumoto²

2014

Cien.Ing.Neogranadina

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<p>Las lagunas de estabilización son uno de los sistemas naturales para tratamiento de aguas residuales más adecuados para reducir los impactos ambientales por vertimiento de efluentes en países en vías de desarrollo. La presente investigación tuvo como objetivo diagnosticar la acumulación de lodos y evaluar el desempeño de la planta de tratamiento de aguas residuales de la ciudad Neves Paulista (São Paulo, Brasil). Mediante un estudio batimétrico de las lagunas de estabilización anaerobia y facultativa se determinaron los perfiles y volúmenes de acumulación de lodos; se midieron diversos parámetros de la calidad del agua afluente y efluente, así como el caudal entrante durante 24 horas consecutivas. La batimetría indicó que los lodos acumulados redujeron los volúmenes útiles de las lagunas anaerobia y facultativa en 26,4% y 23,7% respectivamente y que su heterogénea distribución en las unidades de tratamiento afectó su desempeño hidráulico. La eficiencia media de remoción de la DBO fue del 76,6%, inferior a la mínima establecida por la legislación ambiental brasilera. El número más probable de coliformes fecales en el efluente fue de 6,34x10<sup>5</sup>/100mL, que superó en gran medida los valores máximos permitidos para vertimientos en cuerpos receptores. La planta requiere de la implementación de un sistema de pre-tratamiento, de la remoción de los lodos acumulados en las zonas más críticas y la implementación de un sistema de postratamiento que garantice remoción adicional de DBO y coliformes para ajustarse a la normatividad ambiental. </p>

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Numerical Modelling of Waste Stabilization Ponds: Where Do We Stand?

Cited by 44 publications

References 36 publications

Oxidation pond for municipal wastewater treatment

Oxidation pond for municipal wastewater treatment

The small, the big, and the beautiful: Emerging challenges and opportunities for waste stabilization ponds in Australia

Levantamiento batimétrico de la plata de tratamiento de aguas residuales de Neves Paulista

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