2012
DOI: 10.1590/s0100-40422012000200025
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Tratamentos dos efluentes gerados na produção de biodiesel

Abstract: Recebido em 27/4/11; aceito em 5/9/11; publicado na web em 30/9/11 TREATMENTS OF THE EFFLUENTS GENERATED IN THE BIODIESEL PRODUCTION. The wastewaters from biodiesel production contain as primarily wastes sodium or potassium soaps, fatty acids, glycerin, alcohol and other contaminants. In general, these waters are chemically unsuitable for release to any water body, so, it is necessary the adoption of techniques for the treatment of this effluent. In this review, electrochemical, biological, physicochemical, an… Show more

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Cited by 11 publications
(10 citation statements)
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“…6 In relation to the organic load, the limit in the Brazilian legislation is based on biochemical oxygen demand after five days (DBO 5 ), defining the need of a removal of 60% of the initial DBO 5 before the effluent discharge. Although this parameter has not been evaluated in this work, based on the removal of DOC (14-20%) and COD (35%) ( Table 1), it is likely to be observed a similar behavior from the data analysis of DBO 5 . In this way, the integration of this process to an additional treatment is necessary for removal of organic matter, oils and fats to attend the Brazilian legislation.…”
Section: +mentioning
confidence: 83%
See 1 more Smart Citation
“…6 In relation to the organic load, the limit in the Brazilian legislation is based on biochemical oxygen demand after five days (DBO 5 ), defining the need of a removal of 60% of the initial DBO 5 before the effluent discharge. Although this parameter has not been evaluated in this work, based on the removal of DOC (14-20%) and COD (35%) ( Table 1), it is likely to be observed a similar behavior from the data analysis of DBO 5 . In this way, the integration of this process to an additional treatment is necessary for removal of organic matter, oils and fats to attend the Brazilian legislation.…”
Section: +mentioning
confidence: 83%
“…4 Three reviews on biodiesel wastewater treatment have been recently published. 1,4,5 One of them summarizes a significant number of possible processes and discusses their advantages and disadvantages as well as the possibilities of application for the improvement of the treatment of biodiesel wastewaters. The improvement of the operational parameters of the coagulation-flocculation process, based on the coupling of acidification and coagulation, has been pointed as promisor for this purpose.…”
Section: Introductionmentioning
confidence: 99%
“…O tratamento eletroquímico ocorre num reator composto de dois eletrodos, um ânodo e um cátodo. Quando uma corrente elétrica é aplicada, por uma fonte externa, o material do ânodo é oxidado e o cátodo estará sujeito à redução ou deposição redutiva das espécies em solução [5]. No…”
Section: Introductionunclassified
“…">INTRODUÇÃOO tratamento eletroquímicode resíduos líquidos industriais (efluentes) apresenta-se como uma técnica vantajosapara a remoção de compostos orgânicos e inorgânicos de efluentes [1,2], visto que apresenta risco mínimo de emissões tóxicas ou reações violentas; não envolve a adição de reagentes químicos tóxicos; possibilita a recuperação dos metais presentes em solução; não se restringe ao tratamento de espécies inorgânicas, sendo empregado também para espécies orgânicas, além de apresentar custo operacional competitivo quando comparado com os demais processos [3,4].O tratamento eletroquímico ocorre num reator composto de dois eletrodos, um ânodo e um cátodo. Quando uma corrente elétrica é aplicada, por uma fonte externa, o material do ânodo é oxidado e o cátodo estará sujeito à redução ou deposição redutiva das espécies em solução [5]. No…”
unclassified
“…In this context, we highlight the enzymatic treatments that correspond to the most recent technology for the biological treatment of effluents (Buss & Henkes, 2014, Silva, Silva, Gois, Almeida, & Abud, 2015 by hydrolytic method reduce the concentration and degrade a large number of toxic and persistent substances (Liu et al, 2011, Baldo et al, 2013, Chen, Zhang, Xu, & Yan, 2013, Zadinelo et al, 2013. The use of immobilized lipase on a suitable support increases the process financial viability, mainly due to its reuse (reaction medium separation), it improves the thermal and mechanical properties (stability at different temperatures), operational stability, storage and the enzymatic activity (Cadena et al 2010, Hu et al, 2012, Palomino-Romero et al, 2012, Colla et al, 2014, Manoel et al, 2015, Nyari, Zeni, Steffens, Dallago, & Rigo, 2015, Shao, Jing, Tian, Zheng, & Shang, 2015, Nyari et al, 2016.…”
Section: Introductionmentioning
confidence: 99%