Can The Effective Treatment Of Wastewater In Developing

1472 WordsMay 19, 20176 Pages
Can the effective treatment of wastewater in developing countries have an impact on the development of antibiotic resistance? Introduction: The emergence of resistance in bacteria is primarily related to human and agricultural use of natural and synthetic antibiotics. Most antibiotics aren’t full metabolised and together with resistant bacteria are excreted where they can reach sewage systems and wastewater treatment plants. (Luczkiewicz et al., 2011). Standard wastewater treatment conventions have not been shown to be fully effective in reducing the number of resistant bacteria. Unfortunately, some have been shown to positively select for resistant isolates. (Luczkiewicz et al., 2011). Current treatments in developed countries are quite…show more content…
However, recent research into the use of constructed wetlands has provided developing countries with a more suitable alternative to treating wastewater. Additionally, these wetlands may provide a solution to the spread of antibiotic resistant isolates by removing antibiotics from the wastewater. (Standard For Sewage Treatment Plants In Developing Countries., Humans and the natural environment-slides). Wastewater is a potential source of antimicrobial resistant pathogens: As mentioned previously the treatment of wastewater in developing countries is not very common due to the expense, resources, and time required to treat wastewater effectively. (figure 1) (kaur 2012) And for some areas these wastewater treatment plants are just not viable, and much of the waste is discarded into waters where not only pathogenic bacteria can disseminate but also resistant bacteria and genes. However, in areas that are fortunate enough to have sanitation facilities and conventional treatments such as activated sludge method, drying beds technology and ozonation or chlorination as a disinfection method, they have not been shown to be completely effective in the removal of antibiotics and resistant varieties and even promote resistance in some cases. Evidence for this is
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