Water quality and wastewater treatment for human health and environmental safety

Weerakoon, W.M.T.D.N.; Jayathilaka, Nimanthi; Seneviratne, K.N.

doi:10.1016/b978-0-323-96113-4.00031-7

Cited by 2 publications

(1 citation statement)

References 36 publications

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“…For decades, water quality assessment has been of paramount importance in environmental management and public health. Analysis of wastewater parameters has served as a cornerstone for decision-making in various aspects, including the design of treatment plants and the evaluation of treatment method effectiveness (Weerakoon et al, 2023). Traditional water quality assessment methods have been rooted in the analysis of physical and chemical parameters, providing valuable insights into the quality of water bodies (Chrea et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Implications of Dynamic Interactions between Meteorological Patterns and Surface Water Quality on Environmental Health&#8212;A Case Study of the Nairobi River

Safari,

Chen,

Kipkirui

et al. 2024

GEP

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Urban areas face significant challenges in maintaining water quality amidst increasing urbanization and changing climatic patterns. This study investigates the complex interplay between meteorological variables and water quality parameters in Nairobi City, focusing on the impacts of rainfall and temperature on surface water quality. Data from multiple sources, including the Water Resources Authority, Nairobi Water and Sewerage Company, and the World Bank's Climate Change Knowledge Portal, were analyzed to assess the relationships between meteorological variables (rainfall and temperature) and water quality parameters (such as electroconductivity, biochemical oxygen demand, chloride, and pH). The analysis reveals varying impacts of rainfall and temperature on different water quality parameters. While parameters like iron and pH show strong relationships with both rainfall and temperature, others such as ammonia and nitrate exhibit moderate relationships. Additionally, the study highlights the influence of runoff, urbanization, and industrial activities on water quality, emphasizing the need for holistic management approaches. Recommendations encompass the establishment of annual publications on Nairobi River water quality, online accessibility of water quality data, development of hydrological models, spatial analysis, and fostering cross-disciplinary research collaborations. Implementing these recommendations can enhance water quality management practices, mitigate risks, and safeguard environmental integrity in Nairobi City.

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Section: Introductionmentioning

confidence: 99%

Implications of Dynamic Interactions between Meteorological Patterns and Surface Water Quality on Environmental Health&#8212;A Case Study of the Nairobi River

Safari,

Chen,

Kipkirui

et al. 2024

GEP

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Removal of Escherichia coli and Enterococcus faecalis from synthetic wastewater using thermally treated palygorskite as a bacterial adsorbent in fixed bed reactors

Mavrikos,

Tekerlekopoulou,

Venieri

et al. 2024

J of Chemical Tech & Biotech

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BACKGROUNDIn pursuit of innovative wastewater treatment solutions, this study investigates the use of thermally treated palygorskite (TP) as an adsorbent to remove Escherichia coli and Enterococcus faecalis from synthetic wastewater. The goal is to explore a natural alternative to chlorine‐based disinfectants by utilizing TP's antimicrobial properties. Columns were packed with two granulometries (G1: 0.25–0.6 mm; G2: 1.40–2.36 mm) of TP and arranged in three different configurations (CA1, CA2 and CA3) to assess their bacterial removal efficiency, kinetic behavior and potential for reuse after dry heat sterilization.RESULTSThe CA3 column configuration, with its multilayer arrangement of TP, achieved the highest bacterial removal efficiency, reaching 99.1% for E. coli and 98.1% for E. faecalis. Kinetic experiments revealed that most bacterial adsorption occurred within the first 3 min, with E. coli requiring up to 10 min to reach maximum removal. TP's antibacterial effectiveness remained above 90% after two reuses. Additionally, dry heat sterilization allowed for repeated use of TP, showing stable removal efficiencies for E. faecalis and a slight decline for E. coli with each successive reuse.CONCLUSIONSTP demonstrates significant potential as an adsorbent for wastewater disinfection, particularly in the CA3 multilayer configuration. Its rapid adsorption kinetics and resilience to heat sterilization underscore its reusability, making it a viable natural alternative to chemical disinfectants. Further research should focus on scaling this method to real wastewater treatment applications to validate its functionality in real‐world conditions. © 2024 Society of Chemical Industry (SCI).

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Water quality and wastewater treatment for human health and environmental safety

Cited by 2 publications

References 36 publications

Implications of Dynamic Interactions between Meteorological Patterns and Surface Water Quality on Environmental Health&#8212;A Case Study of the Nairobi River

Implications of Dynamic Interactions between Meteorological Patterns and Surface Water Quality on Environmental Health&#8212;A Case Study of the Nairobi River

Removal of Escherichia coli and Enterococcus faecalis from synthetic wastewater using thermally treated palygorskite as a bacterial adsorbent in fixed bed reactors

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Water quality and wastewater treatment for human health and environmental safety

Cited by 2 publications

References 36 publications

Implications of Dynamic Interactions between Meteorological Patterns and Surface Water Quality on Environmental Health&amp;#8212;A Case Study of the Nairobi River

Implications of Dynamic Interactions between Meteorological Patterns and Surface Water Quality on Environmental Health&amp;#8212;A Case Study of the Nairobi River

Removal of Escherichia coli and Enterococcus faecalis from synthetic wastewater using thermally treated palygorskite as a bacterial adsorbent in fixed bed reactors

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Product

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About

Implications of Dynamic Interactions between Meteorological Patterns and Surface Water Quality on Environmental Health—A Case Study of the Nairobi River

Implications of Dynamic Interactions between Meteorological Patterns and Surface Water Quality on Environmental Health—A Case Study of the Nairobi River