Graphene, electrospun membranes and granular activated carbon for eliminating heavy metals, pesticides and bacteria in water and wastewater treatment processes

The Analyst ◽  
2018 ◽  
Vol 143 (23) ◽  
pp. 5629-5645 ◽  
Author(s):  
Piumie Rajapaksha P. ◽  
Aoife Power ◽  
Shaneel Chandra ◽  
James Chapman
Keyword(s):  
Heavy Metals ◽  
Wastewater Treatment ◽  
Activated Carbon ◽  
Granular Activated Carbon ◽  
Water And Wastewater Treatment ◽  
Safe Water ◽  
Treatment Processes ◽  
Electrospun Membranes ◽  
Water And Wastewater

The availability of safe water has a significant impact on all parts of society, its growth and sustainability, both politically and socioeconomically.

UV-254 transformation of antibiotics in water and wastewater treatment processes

2020 ◽  
pp. 239-297 ◽  
Author(s):  
Mamatha Hopanna ◽  
Kiranmayi Mangalgiri ◽  
Temitope Ibitoye ◽  
Daniel Ocasio ◽  
Sebastian Snowberger ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Water And Wastewater Treatment ◽  
Treatment Processes ◽  
Water And Wastewater

Investigation on effects of aggregate structure in water and wastewater treatment

2004 ◽  
Vol 50 (12) ◽  
pp. 119-124 ◽  
Author(s):  
K.W. Chau
Keyword(s):  
Wastewater Treatment ◽  
Membrane Fouling ◽  
Water And Wastewater Treatment ◽  
Aggregate Structure ◽  
Bacterial Surface ◽  
Filtration Membrane ◽  
Treatment Processes ◽  
Ultra Filtration ◽  
Water And Wastewater ◽  
Filter Cakes

The fractal structure and particle size of flocs are generally recognized as the two most crucial physical properties having impact on the efficiency of operation of several unit processes in water and wastewater treatment. In this study, an experimental investigation is undertaken on the effect of aggregate structure in water and wastewater treatment in Hong Kong. The fractal dimension of the resulting aggregate is employed as a measure of the aggregate structure. Small angle light scattering technique is used here. Different amounts of polymers are mixed to bacterial suspensions and the resulting structures are examined. The addition of polymer may foster aggregate formation by neutralization of the bacterial surface charge and enhance inter-particle bridging. The aggregation behavior may affect the efficiency of certain water and wastewater treatment processes such as dewatering and coagulation. The impacts of aggregate structure on two representative processes, namely, ultra-filtration membrane fouling and pressure filter dewatering efficiency, are studied. It is found that the looser flocs yield a more porous cake and less tendency to foul whilst more porous filter cakes yield more ready biosolids dewatering.

Fundamentals of Membranes and Membrane Processes

2020 ◽  
pp. 1-24
Keyword(s):  
Wastewater Treatment ◽  
Structural Characteristics ◽  
Critical Parameters ◽  
Intrinsic Properties ◽  
Water And Wastewater Treatment ◽  
Membrane Processes ◽  
Treatment Processes ◽  
Overall Performance ◽  
Water And Wastewater ◽  
Membrane Science

Research into the wide possibilities of membrane-based applications is an interesting subject for the modern study of membrane science and technology. Membrane processes have been established as viable and recognized separation techniques in water and wastewater treatment processes. Membranes can be prepared into many forms, each with its intrinsic properties which ultimately determine its suitability for specific applications as well as the overall performance of the process. Thus, this chapter highlights the fundamental concepts of membranes and membrane processes. The critical parameters in membrane processes, and membranes' structural characteristics and parameters are reviewed.

Environment-Friendly Activated Carbon Processes for Water and Wastewater Treatment

2017 ◽  
pp. 353-372
Author(s):  
Wei-chi Ying ◽  
Wei Zhang ◽  
Juan Hu ◽  
Liuya Huang ◽  
Wenxin Jiang ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Activated Carbon ◽  
Water And Wastewater Treatment ◽  
Environment Friendly ◽  
Water And Wastewater
Sign in / Sign up

Export Citation Format

Share Document