Anaerobic Decomposition
Mostrando 1-12 de 51 artigos, teses e dissertações.
-
1. Potential for biogas generation from sweet potato genotypes
Resumo O biogás é uma tecnologia que possibilita a geração de energia através do processo de biodigestão anaeróbia, sendo uma opção a produção a partir de batata-doce como fonte energética. A presente pesquisa teve por objetivo avaliar a produção de biogás em biodigestores anaeróbios de bancada, caracterizar os parâmetros físico-química da
Rev. Ambient. Água. Publicado em: 25/03/2019
-
2. ZEÓLITA 4A PARA PURIFICAÇÃO DO GÁS DE ATERRO SANITÁRIO
The anaerobic decomposition in landfills produces a gas mixture known as landfill biogas. This biogas consists mainly of CH4 and CO2. The CO2 removal can be carried out by means of adsorption. In order to promote CO2 removal, zeolite type 4A was used as solid adsorbent. The synthesized zeolite was characterized by scanning electron microscopy and X-ray diffr
Quím. Nova. Publicado em: 2018-01
-
3. 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
-
4. Aspectos cinéticos da degradação aeróbia e anaeróbia de Cyperus giganteus, Eichhornia azurea e Egeria najas da lagoa do Óleo (Estação Ecológica de Jataí, Luiz Antônio, SP)
This study aimed to assess the effects of temperature on different aspects of aerobic and anaerobic degradation of aquatic macrophytes from different ecological groups: Cyperus giganteus (emergent), Eichhornia azurea (fixed floating) and Egeria najas (submerged). Considering these purposes, the carbon balance and mass decay, the cellulase and peroxidase acti
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/06/2011
-
5. Xylanase and cellulase activities during anaerobic decomposition of three aquatic acrophytes
Enzymatic activity during decomposition is extremely important to hydrolyze molecules that are assimilated by microorganisms. During aquatic macrophytes decomposition, enzymes act mainly in the breakdown of lignocellulolytic matrix fibers (i.e. cellulose, hemicellulose and lignin) that encompass the refractory fraction from organic matter. Considering the im
Brazilian Journal of Microbiology. Publicado em: 2011-03
-
6. Aspectos fisiológicos e caracterização da toxidez de ácidos orgânicos voláteis em plantas / Physiological aspects and characterization of volatile organic acids toxicity on plants
O manejo de resíduos orgânicos sob condições anaeróbias pode, durante a fase inicial do processo metabólico, levar à formação de ácidos orgânicos voláteis (C1-C4), cuja atividade fitotóxica determina perdas substanciais à produção vegetal. A caracterização da fitoxidez desses ácidos foi o objetivo da presente revisão. O tipo e quantidade
Publicado em: 2010
-
7. AvaliaÃÃo do processo de bioestabilizaÃÃo de resÃduos sÃlidos urbanos em LisÃmetro de campo
The solid wastes, formed at the most part of it by organic materials, bear biological degradation associated by others physical and chemical processes. These residues, deposited in landfill, are treated through anaerobic degradation; which engender, as a final result of the decomposition, leaching and bio-gas. However, these sub products can be studied and t
Publicado em: 2009
-
8. Modelagem da decomposição aeróbia de lodo de esgoto em solos com diferentes texturas
The overall assessment of soil clay content on several phases of sludge decomposition, monitored as CO2 evolution, was the main objective of this work. Different soil textures obtained from the same sample matrix allowed correlations of the soil clay content, microbial biomass and organic carbon using soil respiration monitored as cumulative CO2 generation.
Publicado em: 2007
-
9. MECANISMO DE DESENVOLVIMENTO LIMPO: UMA PROPOSTA PARA SUSTENTABILIDADE DO ATERRO SANITÁRIO DE GOIÂNIA
In the face of climate change and its catastrophic effects, reported daily in the media, the Kyoto Protocol is an international agreement that determined, based on the principles of common but differentiated responsibilities and the polluter pays, that industrialized countries reduce their emissions greenhouse gases, a general average, by 5% to the levels of
Publicado em: 2007
-
10. Mechanistic study od atrazine herbicide oxidation in the presence of minerals znd humic substances in anaerobic environmen. / Estudo do mecanismo de oxidação do herbicida atrazina na presença de minerais e sustâncias húmicas em ambiente anaeróbio.
The oxidative decomposition of atrazine was induced by hydroxyl radicals generated from the interaction between hydrogen peroxide, H2O2, and iron oxides, yielding the Fenton reaction. The reaction rate of atrazine oxidation was followed in the presence of iron minerals: goethite, ferrihydrite, and lepidocrocite; and further with humic acid (HA) extracted fro
Publicado em: 2005
-
11. Fração orgânica de biossólidos e efeito no estoque de carbono e qualidade da matéria orgânica de um Latossolo cultivado com eucalipto. / Organic fraction of the biosolids and effect on carbon stocks and organic matter quality in an oxisol planted with eucalyptus.
The aim of this work was to characterize the organic fraction decomposition process of the biosolids in soil, correlating to initial organic matter (OM) composition of residue. Another objective was quantify, under field conditions, the effect of alkaline biosolid on Oxisol OM, in a site planted with eucalyptus and after five years of the residue application
Publicado em: 2004
-
12. Atividade enzimática, cinética e modelagem matemática da decomposição de Ultricularia breviscapa da lagoa do Óleo (Estação Ecológica de Jataí, Luiz Antônio - SP).
This work approached the enzymatic activities, kinetics and mathematical modeling of the decomposition of Utricularia breviscapa from leo lagoon (21 36 S and 47 49 W), Luiz Antonio, SP. The experiments described the decomposition in function of temperature, availability of oxygen and carbon source. Samples of this macrophyte and water were collected in the o
Publicado em: 2003