Reducing environmental impacts of metal (hydr)oxide nanoparticle embedded anion exchange resins using anticipatory life cycle assessment

2016 ◽  
Vol 3 (6) ◽  
pp. 1351-1360 ◽  
Author(s):  
M. Gifford ◽  
M. Chester ◽  
K. Hristovski ◽  
P. Westerhoff
Keyword(s):  
Drinking Water ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Water Treatment ◽  
Drinking Water Treatment ◽  
Emerging Technology ◽  
Multiple Pollutants ◽  
Anion Exchange Resins ◽  
Oxide Nanoparticle ◽  
Exchange Resins

Nanocomposite sorbents are an emerging technology for drinking water treatment of multiple pollutants.

Human health risk-based life cycle assessment of drinking water treatment for heavy metal(loids) removal

2020 ◽  
Vol 267 ◽  
pp. 121980 ◽  
Author(s):  
Guangji Hu ◽  
Anber Rana ◽  
Haroon R. Mian ◽  
Sana Saleem ◽  
Madjid Mohseni ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Drinking Water ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Water Treatment ◽  
Health Risk ◽  
Human Health ◽  
Human Health Risk ◽  
Drinking Water Treatment

Effects of ion exchange resin pre-treatment on GAC adsorption

2008 ◽  
Vol 8 (2) ◽  
pp. 181-187
Author(s):  
B. Sani ◽  
L. Rossi ◽  
C. Lubello ◽  
S. Zacchei
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Ion Exchange ◽  
Drinking Water Treatment ◽  
Life Time ◽  
Ion Exchange Resins ◽  
Dissolved Organics ◽  
Pre Treatment ◽  
Exchange Resins ◽  
By Products

In Italian drinking water treatment plants (DWTP), the problem of chlorination by-products control is very important as the Italian drinking water regulations (Dlgs. 31/2001, as enactment of the CEU directive 98/83) set very strict limits for these compounds. A possible strategy for controlling the concentrations of DBPs (disinfection by-products) is the application of treatment processes able to reduce the concentration of dissolved organic matter, the main precursor of DBPs, before the dosage of chlorine-based disinfectants. Recently, ion exchange resins for the removal of dissolved organics have shown several applications in drinking water treatment. In this experimental study, the treatment with ion exchange resins MIEX®DOC and the treatment with GAC (granular activated carbon) were evaluated for the removal of dissolved organics. Moreover, the effects of MIEX® pre-treatment on the subsequent GAC filtration phase were evaluated, with particular attention to the effects on the life-time of the GAC filter. The GAC filter operation was simulated by rapid small scale column tests (RSSCT), which allow the evaluation of the GAC breakthrough curve in a shorter time with respect to a full plant and pilot plant trials. On the basis of the experimental results, the ion exchange process was very efficient in dissolved organics removal (60–70% UV254 removal). Moreover, the results indicated that the application of ion exchange resins as pre-treatment in a conventional drinking water treatment train could increase the filter life-time in the subsequent GAC adsorption phase (about 200%) resulting in potentially important cost benefits for the overall treatment process.

Environmental life cycle comparison of conventional and biological filtration alternatives for drinking water treatment

2018 ◽  
Vol 4 (10) ◽  
pp. 1464-1479 ◽  
Author(s):  
Christopher H. Jones ◽  
Leigh G. Terry ◽  
R. Scott Summers ◽  
Sherri M. Cook
Keyword(s):  
Drinking Water ◽  
Life Cycle ◽  
Water Treatment ◽  
Environmental Impacts ◽  
Drinking Water Treatment ◽  
Biological Filtration ◽  
Source Waters

This work identified and quantified the environmental impacts of conventional filtration, nonozonated biofiltration, and ozonated biofiltration alternatives for a diverse set of source waters and treatment requirements.

scholarly journals Life cycle assessment of four potable water treatment plants in northeastern Colombia

2016 ◽  
Vol 11 (2) ◽  
pp. 268 ◽  
Author(s):  
Oscar Orlando Ortíz Rodriguez ◽  
Raquel Amanda Villamizar-Gallardo ◽  
Rafael Guilhermo García
Keyword(s):  
Drinking Water ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Water Treatment ◽  
Potable Water ◽  
Stratospheric Ozone ◽  
Public Utility ◽  
Treatment Processes ◽  
Water Treatment Plants ◽  
Potable Water Treatment

There is currently great concern about the processes that directly or indirectly contribute to the potential for global warming, such as stratospheric ozone depletion or acidification. In this context, and provided that treated water is a basic public utility in urban centers around the world as well as in some rural areas, its impact on the environment is of great interest. Therefore, this study applied the environmental methodology of Life Cycle Assessment (LCA) to evaluate the environmental loads of four potable water treatment plants (PWTPs) located in northeastern Colombia following the international guidelines delineated in ISO 14040. The different stages of the drinking water process were thoroughly assessed, from the catchment point through pumping to the distribution network. The functional unit was defined as 1 m3 of drinking water produced at the plant. The data were analyzed through the database Ecoinvent v.3.01, and modeled and processed in the software LCA-Data Manager. The results showed that in plants PLA-CA and PLA-PO, the flocculation process has the highest environmental load, which is mostly attributable to the coagulant agent, with a range between 47-73% of the total impact. In plants PLA-TON and PLA-BOS, electricity consumption was identified as the greatest impact source, with percentages ranging from 67 to 85%. Treatment processes and techniques, bioclimatic conditions and culturally driven consumption behavior varied from region to region. Furthermore, changes in treatment processes and techniques are likely to affect the environment during all stages of a plant’s operational cycle.

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