Os efluentes industriais gerados pelas indústrias podem causar sérios danos ao meio ambiente, se descartados indevidamente. Esses resíduos líquidos devem passar por processos de tratamento antes de serem liberados para os corpos receptores. As indústrias farmacêuticas geram efluentes com alta carga orgânica poluidora, destacando-se os antibióticos. O tratamento dos efluentes contendo antibióticos deve ser realizado de forma específica para que não prejudique os cursos de água e logo a fauna, a flora e a população de modo geral. Este trabalho teve como objetivo avaliar as melhores condições de hidrólise para promover a inativação do antibiótico amoxicilina em solução aquosa. Para esta avaliação foram realizados testes com variação de pH e tempo de exposição às condições estudadas, sendo analisados por cromatografia líquida de alta eficiência (HPLC/CLAE). Em relação ao tipo de hidrólise, verificou-se que a hidrólise alcalina se sobressai, sendo mais indicada. Os resultados obtidos sugerem que o método mais eficaz para o tratamento de efluentes industriais farmacêuticos contendo amoxicilina é a hidrólise alcalina em um pH de 12,5 e tempo de hidrólise de 60 minutos.Industrial effluents generated by industries, if improperly disposed of, can cause serious damage to the environment. These liquid wastes must undergo treatment processes before they are released to the recipient bodies. Pharmaceutical industries generate effluents with high polluting organic load, especially antibiotics. The treatment of the effluents containing antibiotics must be carried out in a specific way so that it does not harm the water courses and soon the fauna, flora and the population. This work aimed to evaluate the best hydrolysis conditions to promote the inactivation of the antibiotic amoxicillin in aqueous solution. For this evaluation were made tests with pH variation and time of exposure to the studied conditions, being analyzed by high performance liquid chromatography (HPLC). In relation to the type of hydrolysis, whether acid or alkaline, it was verified that the alkaline hydrolysis protrudes, being more indicated. The results obtained suggest that the most effective method for the treatment of pharmaceutical industrial effluents containing amoxicillin is alkaline hydrolysis at pH 12.5 and hydrolysis time of 60 minutes.
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