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6 Pharmaceutical wastes: an overview

  • Rana Rashad Mahmood Khan , Ramsha Saleem , Bisma Khanam , Ayoub Ch. Rashid , Muhammad Pervaiz , Zohaib Saeed and Ahmad Adnan
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Abstract

During the last decades, the growth of pharmaceuticals as lifesavers has aroused the issue of water contamination with pharmaceutical waste (PhW). The PhW comprises drugs including antibiotics, anticonvulsants, antihypertensives, antidepressants, hormones, NSAIDs, vaccines, serums, and the patient’s medications. The human and veterinary excretory products, hospital effluents, aquaculture, and disposal of unused or expired medication contribute to the origin of pharmaceutical pollution in the aquatic environment. These compounds in their original forms or the forms of metabolites or conjugates of glucuronic acid and sulfuric acid get entry into the sewage water via excretion. The traditional wastewater plants cannot remove the pharmaceutical contaminants efficiently and they enter the aquatic environment. These compounds have severe effects on humans, plants, animals, fish, and protozoa. Hence, various technologies have been developed to eliminate the contaminants of pharmaceuticals from water bodies. Several strategies have been limited by high expenses, less effective removal, and toxic sludge production. Adsorption is found to be advantageous over all other methods as it is simple, cost-effective, highly effective, and feasible.

Abstract

During the last decades, the growth of pharmaceuticals as lifesavers has aroused the issue of water contamination with pharmaceutical waste (PhW). The PhW comprises drugs including antibiotics, anticonvulsants, antihypertensives, antidepressants, hormones, NSAIDs, vaccines, serums, and the patient’s medications. The human and veterinary excretory products, hospital effluents, aquaculture, and disposal of unused or expired medication contribute to the origin of pharmaceutical pollution in the aquatic environment. These compounds in their original forms or the forms of metabolites or conjugates of glucuronic acid and sulfuric acid get entry into the sewage water via excretion. The traditional wastewater plants cannot remove the pharmaceutical contaminants efficiently and they enter the aquatic environment. These compounds have severe effects on humans, plants, animals, fish, and protozoa. Hence, various technologies have been developed to eliminate the contaminants of pharmaceuticals from water bodies. Several strategies have been limited by high expenses, less effective removal, and toxic sludge production. Adsorption is found to be advantageous over all other methods as it is simple, cost-effective, highly effective, and feasible.

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