This article presents an intensive analysis of a career counseling case—the case of Michael—using the Innovative Moments Coding System (IMCS) and the Return to the Problem Coding System (RPCS). Both systems are grounded in a narrative conception of the self which suggests that narrative change results from the elaboration and development of narrative exceptions to a client’s core problematic self-narrative. The...
This work aims at selecting a suitable strategy to accelerate the start-up of the anaerobic treatment of olive mill wastewater (OMW) and to enhance the biogas production. Two anaerobic sludges were tested in toxicity and biodegradability batch experiments: biomass acclimated to oleate (BAO) and biomass non-acclimated (BNA). The results showed that the resistance to OMW toxicity was higher for the BAO than for t...
Electrochemical treatment of oleate using RuO2 and IrO2 type dimensionally stable anodes in alkaline medium was performed to develop a feasible anaerobic pre-treatment of fatty effluents. The results showed that the pre-treated solutions over RuO2 were faster degraded by anaerobic consortium than the raw oleate solutions or the electrolysed solutions using IrO2. In batch experiments carried out with pre-treated...
Electrochemical pre-treatment of oleate on anaerobic digestion was investigated using two anaerobic filters (AF and AFm) working, respectively, with increasing concentrations of electrochemically pre-treated oleate and oleate. Influents containing 25% and 50% of chemical oxygen demand (COD) of these substrates did not cause relevant alterations in either digester's performance. Comparatively, the pre-treated ol...
Bioactivation, a procedure to obtain anaerobic sulphidogenic sludge, was developed in order to increase sulphate reduction and, consequently, sulphide production to remove metals from effluents. This procedure, in which the source of carbon/energy (lactate) is gradually replaced, consisted of three operational conditions. It was observed that bioactivation took six months so there was a 100-fold increase in the...
The anodic conversion of oleate was carried out on RuO2 type DSA electrode under potentiostatic control. It was used as a pre-treatment of the anaerobic degradation of oleate, which is a long chain fatty acid abundant in wastewaters. Electrochemical treatment was found to improve the anaerobic biodegradation of lipidic wastewaters. In batch experiments, pre-treated oleate was converted to methane without any la...
A digestão anaeróbia é uma opção energética e simultaneamente um processo de tratamento com reconhecidas vantagens ambientais, aplicável a uma grande variedade de efluentes diluídos e concentrados. Os compostos lipídicos são um componente importante da fracção orgânica em grande parte dos efluentes gerados quer pela a agricultura e municípios quer pela indústria. Apesar destes compostos constituírem um substrat...
A digestão anaeróbia é um processo de tratamento de efluentes e simultaneamente uma fonte de energia, através da produção de biogás. A presença de compostos lipídicos nos efluentes não só causa problemas de inibição dos microorganismos como pode levar à lavagem do sistema, sendo frequente a aplicação de pré-tratamentos. Os tratamentos físico-químicos mostram-se, por vezes, insuficientes e originam lamas indesej...
Foram avaliados prospectivamente 118 pacientes (79 homens e 39 mulheres, com média de idade de 50,7 anos) submetidos a cirurgia cardiovascular com circulação extracorpórea. O objetivo foi identificar as complicações neurológicas mais freqüentes e relacioná-las a fatores de risco. As cirurgias tiveram a seguinte distribuição: 71 pacientes foram submetidos a revascularização do miocárdio, 18 a troca valvar. 6 a r...
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