Anaerobic Processes
Mostrando 1-12 de 167 artigos, teses e dissertações.
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1. POTENTIAL OF AUTOCHTHONOUS SULFATE-REDUCING MICROBIAL COMMUNITIES FOR TREATING ACID MINE DRAINAGE IN A BENCH-SCALE SULFIDOGENIC REACTOR
Abstract Biological acid mine drainage treatment depends significantly on inoculum origin, pH, COD/sulfate ratio, and carbon source. In this study, the performance and microbial diversity of anaerobic batch reactors used for sulfate reduction was evaluated. A medium COD/sulfate ratio of 1.14 ± 0.10 was used, and the evaluation was performed in two steps: Ph
Braz. J. Chem. Eng.. Publicado em: 30/09/2019
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2. Bioethanol from Microalgal Biomass: A Promising Approach in Biorefinery
Abstract The development of new technologies which increase the production of biofuel without directly compete with food production is required. Microalgal biomass has recently been in the highlight. The role of this biomass is here discussed within the concept of biorefinery and industrial sustainability of bioethanol production. The process of cultivation
Braz. arch. biol. technol.. Publicado em: 01/08/2019
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3. Removal of organic matter from pre-treated domestic sewage in anaerobic biological reactor by a combined system of electrolytic and biological aerobic treatment
Resumo Os processos biológicos são os métodos mais difundidos para o tratamento de águas residuárias. No entanto, eles têm limitações para degradar poluentes tóxicos e refratários, contaminantes, que os processos eletroquímicos podem remover. Portanto, o objetivo da pesquisa foi verificar a possibilidade de tratamento de esgoto por um processo bio
Rev. Ambient. Água. Publicado em: 22/07/2019
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4. Production components of sunflower plants irrigated with treated domestic wastewater and drinking water in semiarid region
RESUMO Objetivou-se avaliar os componentes de produção do girassol (Helianthus annuus L.) irrigado com esgotos domésticos tratados por diferentes processos e duas lâminas de irrigação. O experimento foi realizado em Ibimirim-PE, Brasil. Utilizou-se o delineamento em blocos ao acaso, em esquema fatorial 4 x 2, com quatro repetições. Os tratamentos con
Rev. Ceres. Publicado em: 2019-02
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5. The rates and players of denitrification, dissimilatory nitrate reduction to ammonia (DNRA) and anaerobic ammonia oxidation (anammox) in mangrove soils
Abstract Mangroves are ecosystems located in the transition zone between land and sea, characterized by periodic flooding that confer to its unique characteristics. Little is known about the transformation of nutrients that occur during the organic matter degradation in this system. In this study, we monitor the nitrogen transformations in soils from three m
An. Acad. Bras. Ciênc.. Publicado em: 25/10/2018
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6. Subdural empyema caused by Peptostreptococcus sp.: a complication of acute pharyngitis
ABSTRACT Subdural Empyema (ESD) is the collection of purulent fluid that develops between the exterior “dura mater” layer and the middle “arachnoid mater” layer that covers the brain. ESD can be caused by a primary infection located in the paranasal sinuses. In many aerobic and/or anaerobic bacterial cases, hearing or traumatic processes serve as the
Rev. Inst. Med. trop. S. Paulo. Publicado em: 21/12/2017
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7. Participation of the arcRACME protein in self-activation of the arc operon located in the arginine catabolism mobile element in pandemic clone USA300
ABSTRACT Staphylococcus aureus pandemic clone USA300 has, in addition to its constitutive arginine catabolism (arc) gene cluster, an arginine catabolism mobile element (ACME) carrying another such cluster, which gives this clone advantages in colonisation and infection. Gene arcR, which encodes an oxygen-sensitive transcriptional regulator, is inside ACME an
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-07
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8. ANAEROBIC MODELING FOR IMPROVING SYNERGY AND ROBUSTNESS OF A MANURE CO-DIGESTION PROCESS
Abstract Biogas production is becoming increasingly important in the environmental area because, besides treating wastewaters, it also generates energy. Co-digestion has become more and more powerful since it is possible, with the use of abundant and cheap substrates, to dilute the inhibitory effects of various other substrates, making the process of anaerob
Braz. J. Chem. Eng.. Publicado em: 2016-12
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9. Stabilization of confined beef cattle manure: characteristics of produced fertilizers
ABSTRACT The growing demand for animal protein is directly related to the feedlot system of animals and their assumptions, such as the waste management. The characterization of the final products becomes an important factor in decision making by one or by other process. The objective was highlight characteristics that fertilizers present due to the used of s
Eng. Agríc.. Publicado em: 2016-10
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10. EVALUATION OF AEROBIC AND ANAEROBIC BIODEGRADABILITY AND TOXICITY ASSESSMENT OF REAL PHARMACEUTICAL WASTEWATER FROM INDUSTRIAL PRODUCTION OF ANTIBIOTICS
Abstract This study evaluates aerobic and anaerobic biodegradability and toxicity of a real pharmaceutical wastewater, which focuses on antibiotics production. Zahn-Wellens and Organization for Economic Cooperation and Development (OECD) methodologies were applied in order to verify the wastewater's biodegradability and Microtox® analysis was performed for
Braz. J. Chem. Eng.. Publicado em: 2016-09
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11. Waterlogging-induced changes in fermentative metabolism in roots and nodules of soybean genotypes
Waterlogging blocks the oxygen supply to the root system which inhibits respiration, and greatly reduces the energy status of cells that affect important metabolic processes. This study evaluated fermentative metabolism and carbohydrate contents in the root system of two soybean (Glycine max L. Merril) genotypes under hypoxic and post-hypoxic conditions. Nod
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-12
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12. Produção de hidrogênio via fermentação anaeróbia - aspectos gerais e possibilidade de utilização de resíduos agroindustriais brasileiros
Biological production of hydrogen through anaerobic fermentation has received increasing attention and offers a great potential as an alternative process for clean fuel production in the future. Considering biological systems for H2 production, anaerobic fermentation stands out, primarily due to its higher production of H2 compared with other biological proc
Quím. Nova. Publicado em: 2014-06