scholarly journals Innovative Treatment Technologies for Natural Waters and Wastewaters

2011 ◽  
Author(s):  
Amy E. Childress
Keyword(s):  
Natural Waters ◽  
Innovative Treatment ◽  
Treatment Technologies

scholarly journals Environmental Assessment of Humic Acid Coated Magnetic Materials Used as Catalyst in Photo-Fenton Processes

Catalysts ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 771
Author(s):  
Mattia Costamagna ◽  
Nuno P. F. Gonçalves ◽  
Alessandra Bianco Prevot
Keyword(s):  
Humic Acid ◽  
Environmental Sustainability ◽  
Natural Waters ◽  
Water Remediation ◽  
Strongly Correlated ◽  
Fenton Catalyst ◽  
Treatment Technologies ◽  
Magnetite Particles ◽  
Chemical Inputs ◽  
Materials Used

Persistent organic pollutants have been increasingly detected in natural waters, and this represents a real challenge to the quality of this resource. To remove these species, advanced treatment technologies are required. Among these technologies, Fenton-like and photo-Fenton-like processes have been investigated for the removal of pollutants from water. Delicate aspects of photo-Fenton processes are that light-driven processes are energy intensive and require a fair amount of chemical inputs, which strongly affects their overall environmental burdens. At present, aside from determining the efficiency of the processes to remove pollutants of a particular technology, it becomes fundamental to assess also the environmental sustainability of the overall process. In this work, the methodology of the life cycle assessment (LCA) was applied to identify the hotspots of using magnetite particles covered with humic acid (Fe3O4/HA) as a heterogeneous photo-Fenton catalyst for water remediation. The sustainability of the overall process was considered, and a comparative LCA study was performed between H2O2 and persulfate activation at different pH. The addition of humic substances to the particles allows the effectiveness of the catalyst to improve without increasing the environmental impacts; these processes are strongly correlated with energy consumption and therefore with the efficiency of the process. For this reason, working at acidic pH allows us to contain the impacts.

Adequacy analysis of drinking water treatment technologies in regard to the parameter turbidity, considering the quality of natural waters treated by large-scale WTPs in Brazil

2019 ◽  
Vol 191 (6) ◽  
Author(s):  
Lívia Duarte Ventura Melo ◽  
Elizângela Pinheiro da Costa ◽  
Carolina Cristiane Pinto ◽  
Gabriela Rodrigues Barroso ◽  
Sílvia Corrêa Oliveira
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Large Scale ◽  
Natural Waters ◽  
Drinking Water Treatment ◽  
Treatment Technologies

Methodology and model for performance and cost comparison of innovative treatment technologies at wood preserving sites

2001 ◽  
Vol 12 (1) ◽  
pp. 37-54 ◽  
Author(s):  
Mark L. Evans ◽  
Robert E. Porges ◽  
Gunarti H. Coghlan ◽  
Richard G. Eilers ◽  
Art G. Glazer
Keyword(s):  
Cost Comparison ◽  
Innovative Treatment ◽  
Treatment Technologies

The use of innovative treatment technologies at superfund sites

1988 ◽  
Vol 8 (2) ◽  
pp. 181-191
Author(s):  
for Environmental Management. Center ◽  
Tufts University
Keyword(s):  
Superfund Sites ◽  
Innovative Treatment ◽  
Treatment Technologies

Trends in Innovative Treatment Technologies at Contaminated Sites

1992 ◽  
Vol 26 (1-2) ◽  
pp. 99-106 ◽  
Author(s):  
W. W. Kovalick
Keyword(s):  
Solid Waste ◽  
Emergency Response ◽  
Contaminated Soils ◽  
Contaminated Sites ◽  
Innovative Treatment ◽  
Waste Remediation ◽  
Treatment Technologies ◽  
Conventional Methods ◽  
Economic Considerations

Increasing the diversity of technologies used to remediate contaminated soils and groundwater is one of the goals of EPA's Office of Solid Waste and Emergency Response (OSWER). While conventional methods of waste remediation, such as stabilization, containment, and incineration, are certainly valid approaches to resolving waste problems, statutory and economic considerations are now, more than ever, encouraging the entire remediation community to consider change in thinking and practice.

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