Skip to main content

Research Repository

Advanced Search

All Outputs (15)

Modelling of quadratic-surface sludge digesters by smoothed particle hydrodynamics (SPH) – Finite element (FE) methods (2020)
Journal Article
Tota-Maharaj, K., Nounu, G., & Ramroop, N. (2020). Modelling of quadratic-surface sludge digesters by smoothed particle hydrodynamics (SPH) – Finite element (FE) methods. Archives of Hydro-Engineering and Environmental Mechanics, 67(1-4), 35-53. https://doi.org/10.1515/heem-2020-0003

The quadric-surfaced sludge digester (QSD), also known as the egg-shaped sludge digester, has proven its advantages over traditional cylindrical digesters recently. A reduction in operational cost is the dominant factor. Its shell can be described as... Read More about Modelling of quadratic-surface sludge digesters by smoothed particle hydrodynamics (SPH) – Finite element (FE) methods.

Numerical modelling of Quadric-Surfaced Sludge Digesters (QSD) within Wastewater Infrastructure using 3D Printing Techniques (2020)
Journal Article
Tota-Maharaj, K., & Ramroop, N. (2020). Numerical modelling of Quadric-Surfaced Sludge Digesters (QSD) within Wastewater Infrastructure using 3D Printing Techniques. Institute of Water Journal, 25-31

The quadric-surfaced sludge digesters (QSDs), sometimes referred to as egg-shaped sludge reactors, are becoming more popular within wastewater treatment works as of recently. These tanked systems with their shell structure provide a surface free of d... Read More about Numerical modelling of Quadric-Surfaced Sludge Digesters (QSD) within Wastewater Infrastructure using 3D Printing Techniques.

3-parameter log-logistic distribution modelling and scenario development to evaluate the United Kingdom’s water demand (2020)
Journal Article
Surendran, S., & Tota-Maharaj, K. (2020). 3-parameter log-logistic distribution modelling and scenario development to evaluate the United Kingdom’s water demand. Institute of Water Journal, 4-9

A major unresolved problem in water consumption modelling is the identification of a statistical distribution function which best represents the random nature of water consumption patterns. Relatively, few studies can be found in the literature in wh... Read More about 3-parameter log-logistic distribution modelling and scenario development to evaluate the United Kingdom’s water demand.

Modelling of a sustainable refugee camp drainage system for stormwater management (2019)
Journal Article
Ajibade, O. O., Tota-Maharaj, K., Hills, C. D., & MacLeod, C. (2019). Modelling of a sustainable refugee camp drainage system for stormwater management. Environmental Science: Water Research & Technology, 5(12), 2150-2161. https://doi.org/10.1039/C9EW00350A

© 2019 The Royal Society of Chemistry. A novel decentralised Sustainable Refugee Camp Drainage System (SRCDS) has been developed for the effective management of stormwater in the Dadaab refugee camp, Kenya. The SRCDS uses the principle of Best Manage... Read More about Modelling of a sustainable refugee camp drainage system for stormwater management.

Effect of thermodynamic parameters on the concentration of pollutants in produced water from crude oil production (2019)
Journal Article
Tota-Maharaj, K., & Ngene, S. (2019). Effect of thermodynamic parameters on the concentration of pollutants in produced water from crude oil production. Journal of Energy Research and Reviews, 3(3), 1-13. https://doi.org/10.9734/jenrr/2019/v3i330101

Thermodynamic parameters such as temperature and pressure of petroleum reservoirs are among the most important physical characteristics which are required to effectively produce crude oil from the reservoirs. Oil and gas reservoir pressures determine... Read More about Effect of thermodynamic parameters on the concentration of pollutants in produced water from crude oil production.

Effect of carbon-negative aggregates on the strength properties of concrete for permeable pavements (2019)
Journal Article
Monrose, J., Tota-Maharaj, K., Mwasha, A., & Hills, C. (2020). Effect of carbon-negative aggregates on the strength properties of concrete for permeable pavements. International Journal of Pavement Engineering, 21(14), 1823-1831. https://doi.org/10.1080/10298436.2019.1567924

Permeable pavements are engineered to temporarily store water to reduce flooding during rainfall events. Permeable pavements are distinguished primarily based on their surface materials which can vary from concrete, asphalt, clay brick, concrete pave... Read More about Effect of carbon-negative aggregates on the strength properties of concrete for permeable pavements.

Technological Review of Permeable Pavement Systems for Applications in Small Island Developing States (2018)
Journal Article
Monrose, J., & Tota-Maharaj, K. (2018). Technological Review of Permeable Pavement Systems for Applications in Small Island Developing States. CLEAN - Soil, Air, Water, 46(9), 1700168. https://doi.org/10.1002/clen.201700168

© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim This paper presents a technological review of permeable pavement systems (PPS) for applications in urban areas of small island developing states (SIDS). This review includes a literature survey of P... Read More about Technological Review of Permeable Pavement Systems for Applications in Small Island Developing States.

Effectiveness of log-logistic distribution to model water-consumption data (2018)
Journal Article
Surendran, S., & Tota-Maharaj, K. (2018). Effectiveness of log-logistic distribution to model water-consumption data. Aqua, 67(4), 375-383. https://doi.org/10.2166/aqua.2018.175

© IWA Publishing 2018. Water consumption varies with time of use, season and socio-economic status of consumers, and is defined as a continuous random variable. Incorporating probabilistic nature in water-consumption modelling will lead to more reali... Read More about Effectiveness of log-logistic distribution to model water-consumption data.

Comparative study of sustainable drainage systems for refugee camps stormwater management (2018)
Journal Article
Ajibade, O., & Tota-Maharaj, K. (2018). Comparative study of sustainable drainage systems for refugee camps stormwater management. Proceedings of the ICE - Municipal Engineer, 171(3), 149-162. https://doi.org/10.1680/jmuen.17.00019

© 2018 ICE Publishing: All rights reserved. To meet the United Nations 2030 Sustainable Development Goals (SDGs 2030) without leaving vulnerable people such as the refugees and internally displaced persons (IDPs) behind, it is important to upgrade dr... Read More about Comparative study of sustainable drainage systems for refugee camps stormwater management.

Municipal wastewater treatment and associated bioenergy generation using anaerobic granular bed baffled reactor (2017)
Journal Article
Tota-Maharaj, K., Akunna, J., & Cheddie, D. (in press). Municipal wastewater treatment and associated bioenergy generation using anaerobic granular bed baffled reactor

This study assesses a modified anaerobic granular bed baffled reactor (GRABBR) which was assessed for wastewater treatment at high organic loading rates (chemical oxygen demand > 1100 mg/l) under varying temperatures. For the two mesophilic temperatu... Read More about Municipal wastewater treatment and associated bioenergy generation using anaerobic granular bed baffled reactor.

Challenges of poor surface water drainage and wastewater management in refugee camps (2016)
Journal Article
Ajibade, O. O., Tota-Maharaj, K., & Clarke, B. (2016). Challenges of poor surface water drainage and wastewater management in refugee camps. Environmental and Earth Sciences Research Journal, 3(4), 53-60. https://doi.org/10.18280/eesrj.030402

Since refugee camps are meant to be temporary and setting them up usually require urgency, little attention has been given to provision of surface water drainage and to a lesser extent wastewater management. As the population of refugees in these cam... Read More about Challenges of poor surface water drainage and wastewater management in refugee camps.

Laboratory studies on granular filters and their relationship to geotextiles for stormwater pollutant reduction (2015)
Journal Article
Paul, P., & Tota-Maharaj, K. (2015). Laboratory studies on granular filters and their relationship to geotextiles for stormwater pollutant reduction. Water, 7(4), 1595-1609. https://doi.org/10.3390/w7041595

Applications of geotextiles within tertiary stormwater treatment systems and for stormwater infiltration can provide a substrate for biofilm formation, enabling biological treatment of contaminants. Geotextiles can serve as an efficient part of storm... Read More about Laboratory studies on granular filters and their relationship to geotextiles for stormwater pollutant reduction.

Performance of pilot-scale microbial fuel cells treating wastewater with associated bioenergy production in the Caribbean context (2015)
Journal Article
Tota-Maharaj, K., & Paul, P. (2015). Performance of pilot-scale microbial fuel cells treating wastewater with associated bioenergy production in the Caribbean context. International Journal of Energy and Environmental Engineering, 6(3), 213-220. https://doi.org/10.1007/s40095-015-0169-x

© 2015, The Author(s). Microbial fuel cell (MFC) technology represents a form of renewable energy that generates bioelectricity from what would otherwise be considered a waste stream. MFCs may be ideally suited to the small island developing state (S... Read More about Performance of pilot-scale microbial fuel cells treating wastewater with associated bioenergy production in the Caribbean context.

Sustainable approaches for stormwater quality improvements with experimental geothermal paving systems (2015)
Journal Article
Paul, P., & Tota-Maharaj, K. (2015). Sustainable approaches for stormwater quality improvements with experimental geothermal paving systems. Sustainability, 7(2), 1388-1410. https://doi.org/10.3390/su7021388

© 2015 by the authors. This research assesses the next generation of permeable pavement systems (PPS) incorporating ground source heat pumps (geothermal paving systems). Twelve experimental pilot-scaled pavement systems were assessed for its stormwat... Read More about Sustainable approaches for stormwater quality improvements with experimental geothermal paving systems.

Evaluation of the solar photocatalytic degradation of organochlorine compound trichloroethanoic acid using titanium dioxide and zinc oxide in the Caribbean region (2015)
Journal Article
Paul, P., & Tota-Maharaj, K. (2015). Evaluation of the solar photocatalytic degradation of organochlorine compound trichloroethanoic acid using titanium dioxide and zinc oxide in the Caribbean region. Water Science and Technology: Water Supply, 15(3), 559-568. https://doi.org/10.2166/ws.2015.005

© IWA Publishing 2015. Advanced oxidation processes driven by solar energy can be an efficient method in removing organochlorine compounds from river water especially in tropical environments like the Caribbean region. The feasibility of solar photoc... Read More about Evaluation of the solar photocatalytic degradation of organochlorine compound trichloroethanoic acid using titanium dioxide and zinc oxide in the Caribbean region.