Fatty Effluent
Mostrando 1-12 de 21 artigos, teses e dissertações.
-
1. USE OF A GRIFFITH TUBE TO EVALUATE THE ANAEROBIC SLUDGE SEDIMENTATION IN A UASB REACTOR TREATING AN EFFLUENT WITH LONG-CHAIN FATTY ACIDS
Abstract This paper proposes to study the sedimentation characteristics of anaerobic sludge, by determining the settling velocity of sludge granules with the Griffith Tube. This is a simple, low-cost method, suitable for use in full-scale treatment plants. The settling characteristics of sludge from two laboratory-scale UASB reactors fed with saccharose and
Braz. J. Chem. Eng.. Publicado em: 2017-01
-
2. Growth kinetics, effect of carbon substrate in biosynthesis of mcl-PHA by Pseudomonas putida Bet001
Growth associated biosynthesis of medium chain length poly-3-hydroxyalkanoates (mcl-PHA) in Pseudomonas putida Bet001 isolated from palm oil mill effluent was studied. Models with substrate inhibition terms described well the kinetics of its growth. Selected fatty acids (C8:0 to C18:1) and ammonium were used as carbon and nitrogen sources during growth and P
Braz. J. Microbiol.. Publicado em: 2014-06
-
3. Influence of co-substrates in the anaerobic degradation of an anionic surfactant
The removal of linear alkylbenzene sulfonate (LAS) was evaluated in a UASB reactor using short-chain alcohols (ethanol and methanol) and complex co-substrate (yeast extract). Using only methanol and ethanol as co-substrates resulted in removal of LAS between 30 and 41%. At the end, addition of a complex substrate (yeast extract) increased the removal of LAS
Braz. J. Chem. Eng.. Publicado em: 2013-09
-
4. Spirulina sp. LEB-18 culture using effluent from the anaerobic digestion
The carbon source is the most expensive nutrient for Spirulina production; effluents from anaerobic digestion contain this nutrient in the form of HCO3-. The aim of this study was to assess the growth kinetics, composition and fatty acid profile of Spirulina sp. LEB-18 grown in standard Zarrouk medium (NaHCO3 16.8 g L-1) and in Zarrouk medium replaced with 2
Braz. J. Chem. Eng.. Publicado em: 2013-06
-
5. Tratamento de corantes reativos em solução aquosa utilizando lodo de esgoto sanitário como biossorvente em reatores contínuos. / Treatment of reactive dyes in aqueous solution using sewage sludge as biosorbent in continuous reactors.
Conventional treatments of textile industry effluents usually produce significant amounts of recalcitrant subproducts. Among the new treatment technologies, adsorption appears as an alternative method. In this study, the efficiency of sewage sludge in the removal of reactive dye yellow GR, blue GN and red RB was evaluated to pH, total alkalinity, volatile fa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/08/2012
-
6. Tratamentos dos efluentes gerados na produção de biodiesel
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
Química Nova. Publicado em: 2012
-
7. ProduÃÃo de Ãcidos graxos volÃteis por biodigestÃo anaerÃbia da manipueira / Production of volatile fatty acids by anaerobic biodigestion of manipueira
The cultivation of cassava extends throughout Brazil because of its excellent adaptation to different soils and climatic conditions. Our country occupies the second position at the worldwide ranking in cultivating this plant (15% of the world production). The industrial processing of cassava generates a liquid waste, the so called manipueira, considered as a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2011
-
8. Biochemical composition of seven species of cyanobacteria isolated from different aquatic habitats of Western Ghats, Southern India
The aim of this work was to study the biochemical constituents of seven species of cyanobacteria namely, Calothrix fusca, Gloeocapsa livida, Lyngbya limnetica and Scytonema bohneri isolated from Panekal sulfur spring. The species namely, Oscillatoria acuminata from petrochemical refinery, O. calcuttensis from dairy effluent and O. foreaui from a sewage drain
Brazilian Archives of Biology and Technology. Publicado em: 2011-10
-
9. Effect of hydraulic retention time on up-flow anaerobic stage reactor performance at constant loading in the presence of antibiotic tylosin
The present investigation was aimed at determining the impact of the macrolide antibiotic Tylosin in reduced HRT at constant organic loading rate (OLR) by varying feed substrate concentration in an up-flow anaerobic stage reactor (UASR). The antibiotic concentration was maintained at 200 mg.L-1, at constant OLR of 1.88 kg COD.m-3.d-1, by varying feed substra
Brazilian Journal of Chemical Engineering. Publicado em: 2011-03
-
10. Aproveitamento de efluente gorduroso gerado por abatedouro e frigorífico para produção de biossurfactante
Os surfactantes produzidos por micro-organismos apresentam as mesmas características dos surfactantes sintéticos, sendo capazes de reduzir a tensão superficial em soluções aquosas e em misturas de hidrocarbonetos Neste trabalho estudou-se a produção de biossurfactante por fermentação de gorduras provenientes de flotadores de estação de tratamento
Publicado em: 2011
-
11. Proposta de metodologia para determinação da atividade hidrogênica específica
Hydrogen production by fermentation process is influenced by the concentration and characteristics of organic substrate, the effluent pH value and biomass concentration. The determination of specific hydrogenic activity of organic substrates and biomass can be a tool to analyze the hydrogen volume produced during the fermentation, the volatile fatty acids pr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
-
12. PrÃ-tratamento biolÃgico da Ãgua residuÃria de lavagem do biodiesel de Ãleo de soja por micro-organismos produtores de lipase.
O biodiesel à um combustÃvel derivado de biomassa renovÃvel que pode substituir, parcial ou totalmente, o combustÃvel de origem fÃssil. O processo de produÃÃo de biodiesel à composto das seguintes etapas: preparaÃÃo da matÃria-prima, reaÃÃo de transesterificaÃÃo, separaÃÃo de fases, recuperaÃÃo e desidrataÃÃo do Ãlcool, destilaÃÃo da
Publicado em: 2010