ANÁLISE DA EFICIÊNCIA DO TRATAMENTO ANAERÓBIO DA MANIPUEIRA

In the processes of industrialization of cassava flour (Minihot esculenta), there is the generation of an effluent called manipueira, which requires treatment before being released into the water body. The objective of this work was to evaluate the efficiency of effluent degradation by an anaerobic reactor, using as substrate, manipueira of a flour producing industry, and, as inoculum, two distinct sludges, one from an anaerobic reactor of ascending flow (RAFA) of domestic sewage treatment plant, and another from the activated sludge system of effluent treatment of a grain producing industry. The efficiency of the process was evaluated by the physicochemical parameters: COD, BOD, total solids (TS), total volatile solids (STV), fixed total solids (STF), pH, turbidity and cyanide. Throughout the treatment there was a significant removal of Cyanide in the effluent, that is, one of the major problems of the effluent can be solved effectively via anaerobic treatment.Nos processos de industrialização de farinha de mandioca (Manihot esculenta), há a geração de um efluente denominado manipueira, que necessita de tratamento antes de ser lançado no corpo hídrico. O objetivo deste trabalho foi avaliar a eficiência da degradação do efluente por um reator anaeróbio, utilizando-se como substrato, manipueira de uma indústria produtora de farinha, e, como inóculo, dois lodos distintos, um oriundo de um reator anaeróbio de fluxo ascendente (RAFA) de estação de tratamento de esgoto doméstico, e outro do sistema de lodos ativados do tratamento de efluentes de uma indústria produtora de grãos. A eficiência do processo foi avaliada pelos parâmetros físico-químicos: DQO, DBO, sólidos totais (ST), sólidos totais voláteis (STV), sólidos totais fixos (STF), pH, turbidez e cianeto. Durante todo o tratamento houve uma remoção significativa de Cianeto no efluente, ou seja, um dos grandes problemas do efluente pode ser resolvido de maneira eficaz via tratamento anaeróbio

Cochlear implantation in a case of bilateral sensorineural hearing loss due to mumps

It is well known that unilateral profound sensorineural hearing loss is caused by mumps; however, bilateral deafness is rare. Herein we report a case of bilateral profound hearing loss caused by mumps infection in a four-year-old boy. Labyrinthitis due to the mumps virus was suspected. His verbal understanding was poor, and he completely stopped talking. He was soon fitted with a hearing aid, but it proved insufficient. Thereupon, cochlear implantation was performed on his left ear. Six months after the operation, his speech perception and speech production were improved. In cases of bilateral profound hearing loss due to mumps infection conservative therapy is ineffective; therefore, cochlear implantation is recommended. Vaccine coverage for mumps virus is also strongly recommended in Japan