This work concentrates on the review paper published by Ahmed et al. [1] which is dedicated to the elimination of emerging contaminants (ECs) using biological, chemical and hybrid techniques in effluents from wastewater treatment plants (WWTPs). Endocrine disruption chemicals (EDCs) are better reduced by a membrane bioreactor (MBR), activated sludge, and aeration processes between various biological processes. Surfactants, EDCs and personal care products (PCPs) may be well reduced using activated sludge processes. Pesticides and pharmaceuticals manifested convenient reduction performances by biological activated carbon. Microalgae treatment techniques may diminish nearly all sorts of ECs to a certain degree. Additional biological methods were observed less efficient in dealing with ECs. Chemical oxidation techniques (like ozonation/H2O2, UV photolysis/H2O2, and photo-Fenton) may greatly eliminate up to 100% of pesticides, beta-blockers, and pharmaceuticals; at the same time, EDCs may be better reduced via ozonation and UV photocatalysis. Fenton method was observed less efficient in treating any sorts of ECs. A merged setup founded on ozonation pursued by biological activated carbon was manifested hugely efficacious in eliminating pesticides, beta-blockers, and pharmaceuticals. An integrated ozonation-ultrasound device may eliminate until 100% of numerous pharmaceuticals. Next research orientations to boost the elimination of ECs have been suggested.
Cite this paper
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Ghernaout, D., Ghernaout, B. and Boucherit, A. (2008) Effect of pH on Electrocoagulation of Bentonite Suspensions in Batch Using Iron Electrodes. Journal of Dispersion Science and Technology, 29, 1272-1275. https://doi.org/10.1080/01932690701857483
Ghernaout, D. (2017) Environmental Principles in the Holy Koran and the Sayings of the Prophet Muhammad. American Journal of Environmental Protection, 6, 75-79. https://doi.org/10.11648/j.ajep.20170603.13
Ghernaout, D., Aichouni, M. and Alghamdi, A. (2018) Applying Big Data (BD) in Water Treatment Industry: A New Era of Advance. International Journal of Advanced and Applied Sciences, 5, 89-97. https://doi.org/10.21833/ijaas.2018.03.013
