A review on hydrolytic enzymes in the treatment of wastewater with high oil and grease content

Cammarota, Magali Christe; Freire, Denise Maria Guimarães

doi:10.1016/j.biortech.2006.02.030

Cited by 282 publications

(149 citation statements)

References 89 publications

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“…Lipídeos (gorduras, óleos e graxas) encontram-se presentes em águas residuais municipais e em elevadas concentrações naquelas oriundas de algumas indústrias, como em refinarias de óleos comestíveis, frigoríficos, curtumes e indústrias de laticínios, resultando em prejuízos à eficiência dos sistemas de tratamento e elevação dos custos (MENDES et al, 2005, CAMMAROTA & FREIRE, 2006ALBERTON et al, 2010).…”

Section: Introductionunclassified

Isolamento e seleção de fungos produtores de lipases com base na atividade lipásica e no potencial hidrolítico sobre óleo comestível de soja e escuma de caixa de gordura

Cassini¹,

Antunes²,

Keller³

et al. 2016

Eng. Sanit. Ambient.

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RESUMOO uso de biomassa fúngica como biocatalisadora lipásica representa uma atraente abordagem para o tratamento de águas residuais oleosas e produção de biodiesel, a partir de óleos e graxas residuais, devido à sua maior estabilidade, possibilidade de reuso e baixo custo. Neste trabalho foram obtidos cem isolados de fungos, a partir de escumas de caixa de gordura e esgoto, solo e tecidos necrosados de plantas e insetos, que foram avaliados quanto ao crescimento e à atividade lipásica, no meio de cultura básico, para atividade lipásica extracelular, e meio mineral mínimo + óleo de soja + rodamina, para atividade lipásica intracelular, com resposta positiva e diferenciada de 66 deles, inclusos como pertencentes aos gêneros Aspergillus, Beauveria, Botrytis, Cladosporium, Colletotrichum, Fusarium, Geotrichum, Penicillium

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Section: Introductionunclassified

Isolamento e seleção de fungos produtores de lipases com base na atividade lipásica e no potencial hidrolítico sobre óleo comestível de soja e escuma de caixa de gordura

Cassini¹,

Antunes²,

Keller³

et al. 2016

Eng. Sanit. Ambient.

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“…Conventional treatment of these effluents normally includes a primary treatment to remove the suspended solids and fats and a secondary biological treatment; however, many problems have been reported during these processes. They are often related to the high production of foam, the low settleability of the sludge, the low resistance to shock loads, the difficulty in removing nutrients, and the problems associated with the degradation of fats, oils, and other specific types of pollutants (Cammarota and Freire, 2006;Machado et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Reuse of Dairy Wastewater Treated by Membrane Bioreactor and Nanofiltration: Technical and Economic Feasibility

Andrade¹,

Mendes²,

Espíndola³

et al. 2015

Braz. J. Chem. Eng.

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-This study evaluated the technical and economic feasibility of membrane bioreactors (MBR) followed by nanofiltration (NF) for dairy wastewater treatment in order to reuse the treated effluent. It was observed that the MBR efficiently removed the organic matter and color of the feed effluent; however, due to the high concentration of dissolved solids in the permeate, it was necessary to use nanofiltration as a polishing step. The final treated effluent could be reused in the industry for cooling, steam generation and cleaning of external areas. A preliminary economic analysis showed the feasibility of the proposed system. The internal rate of return was greater than or equal to 32% when membrane lifespan was at least 2 years and the depreciation time was 15 years. The total cost of the proposed treatment system ranged from R$ 9.99/m³ to R$ 6.82/m³, depending on membrane lifespan.

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“…Therefore, they are commonly used in processing in biotechnological industries, including food (De Maria et al, 2007;Rajan et al, 2008;Keng et al, 2009), cosmetics and personal care products, oleochemicals (Xia et al, 1996;Lai et al, 2005;Saisubramanian et al, 2006;Goswami et al, 2013) and biomedical industries as well as bioremediation (Lanciotti et al, 2005;Cammarota & Freire, 2006) and biosensor applications (Albertsson & Varma, 2003;Kartal et al, 2007;Sandoval et al 2010). Nowadays, yeast and fungi are very attractive lipaseproducing systems for industrial applications due to the versatility of their properties and ease of mass production (Fickers et al, 2011;Singh & Mukhopadhyay, 2012).…”

Section: Introductionmentioning

confidence: 99%

Genome mining of fungal lipid-degrading enzymes for industrial applications

et al. 2015

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Lipases are interesting enzymes, which contribute important roles in maintaining lipid homeostasis and cellular metabolisms. Using available genome data, seven lipase families of oleaginous and non-oleaginous yeast and fungi were categorized based on the similarity of their amino acid sequences and conserved structural domains. Of them, triacylglycerol lipase (patatin-domaincontaining protein) and steryl ester hydrolase (abhydro_lipase-domain-containing protein) families were ubiquitous enzymes found in all species studied. The two essential lipases rendered signature characteristics of integral membrane proteins that might be targeted to lipid monolayer particles. At least one of the extracellular lipase families existed in each species of yeast and fungi. We found that the diversity of lipase families and the number of genes in individual families of oleaginous strains were greater than those identified in non-oleaginous species, which might play a role in nutrient acquisition from surrounding hydrophobic substrates and attribute to their obese phenotype. The gene/enzyme catalogue and relevant informative data of the lipases provided by this study are not only valuable toolboxes for investigation of the biological role of these lipases, but also convey potential in various industrial applications.

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A review on hydrolytic enzymes in the treatment of wastewater with high oil and grease content

Cited by 282 publications

References 89 publications

Isolamento e seleção de fungos produtores de lipases com base na atividade lipásica e no potencial hidrolítico sobre óleo comestível de soja e escuma de caixa de gordura

Isolamento e seleção de fungos produtores de lipases com base na atividade lipásica e no potencial hidrolítico sobre óleo comestível de soja e escuma de caixa de gordura

Reuse of Dairy Wastewater Treated by Membrane Bioreactor and Nanofiltration: Technical and Economic Feasibility

Genome mining of fungal lipid-degrading enzymes for industrial applications

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