Consulta: subjectFacets:"Biostimulation"
Registros recuperados: 5
Data/hora: 13/06/2024 05:06:54

In situ analysis of a composting plant located in São Paulo city: fungal ecology in different composting phases
Provedor de dados: 3
Autores: Ribeiro, Ana Lucia Vardiero; Aquino, Simone; Francos, Maria Solange; Galvão, Rafael Golin.
The National Plan for Solid Waste has set out to reduce by 25% the amount of organic waste disposed of in landfills, mostly food residues from street fairs, besides determining the implementation of municipal composting plants, and it also mentions improving the capacity of plants already installed. The purpose of the study was to analyze which decomposing fungi are involved in the different composting phases, in a plant located in the city of São Paulo. Data was collected in four composting seasons from 2016 to 2017 and the analysis of 49 samples showed twelve genera belonging to the Ascomycetes and Zygomycetes phyla, but only at the mesophilic phase. In all seasons, yeasts and Aspergillus fumigatus were predominant with a total count of 1.0 x 109 cfu g-1...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecologia de fungos fungi; Composting phases; Mycobiota; Biostimulation; Biodegradation. Micologia.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/43496

Comparison of biostimulation and bioaugmentation techniques for the remediation of used motor oil contaminated soil
Provedor de dados: 52
Autores: Abdulsalam,Surajudeen; Omale,Adaji Benjamin.
This study was carried out on the bioremediation of used motor oil contaminated soil artificially contaminated to a pollutant level of 40,000ppm using biostimulation and bioaugmentation remediation techniques for 42 days. Four treatment options were investigated in wooden microcosms: Control (T1), water amended (T2), biostimulation (T3) and hybrid of biostimulation and bioaugmentation (T4). The effectiveness of bioremediation processes were monitored using the total petroleum hydrocarbon removal (TPH) and total bacterial count (TBC). T3 had the highest TPH removal rate (69.2±0.05%), followed by T4 (65.2±0.25%) and T2 (58.4±0.5%); the control (T1) had the lowest TPH removal rate (43.2±1.5%). TBC revealed that bioremediation actually took place; T4 had the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioremediation; Biostimulation; Bioaugmentation; TPH; Used motor oil; Wooden microcosms.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000300027

Production of CO2 in crude oil bioremediation in clay soil
Provedor de dados: 52
Autores: Baptista,Sandro José; Cammarota,Magali Christe; Freire,Denize Dias de Carvalho.
The aim of the present work was to evaluate the biodegradation of petroleum hydrocarbons in clay soil a 45-days experiment. The experiment was conducted using an aerobic fixed bed reactor, containing 300g of contaminated soil at room temperature with an air rate of 6 L/h. The growth medium was supplemented with 2.5% (w/w) (NH4)2SO4 and 0.035% (w/w) KH2PO4. Biodegradation of the crude oil in the contaminated clay soil was monitored by measuring CO2 production and removal of organic matter (OM), oil and grease (OandG), and total petroleum hydrocarbons (TPH), measured before and after the 45-days experiment, together with total heterotrophic and hydrocarbon-degrading bacterial count. The best removals of OM (50%), OandG (37%) and TPH (45%) were obtained in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biostimulation; Crude oil; Clay soil.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000400031

The use of vinasse as an amendment to ex-situ bioremediation of soil and groundwater contaminated with diesel oil
Provedor de dados: 52
Autores: Mariano,Adriano Pinto; Crivelaro,Sérgio Henrique Rezende; Angelis,Dejanira de Franceschi de; Bonotto,Daniel Marcos.
This work investigated the possibility of using vinasse as an amendment in ex-situ bioremediation processes. Groundwater and soil samples were collected at petrol stations. The soil bioremediation was simulated in Bartha biometer flasks, used to measure the microbial CO2 production, during 48 days, where vinasse was added at a concentration of 33 mL.Kg-1of soil. Biodegradation efficiency was also measured by quantifying the total petroleum hydrocarbons (TPH) by gas chromatography. The groundwater bioremediation was carried out in laboratory experiments simulating aerated (bioreactors) and not aerated (BOD flasks) conditions. In both the cases, the concentration of vinasse was 5 % (v/v) and different physicochemical parameters were evaluated during 20 days....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioremediation; Soil; Groundwater; Diesel oil; Biostimulation; Vinasse.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000400030

Bioremediation of soil contaminated by diesel oil
Provedor de dados: 58
Autores: Bento,Fatima Menezes; Camargo,Flávio Anastácio de Oliveira; Okeke,Benedict; Frankenberger-Júnior,Willian Thomas.
Were evaluated natural attenuation, biostimulation and bioaugmentation on the degradation of total petroleum hydrocarbons (TPH) in soils contaminated with diesel oil. Bioaugmentation showed the greatest degradation in the light (C12 - C23) fractions (72.7%) and heavy (C23 - C40) fractions of TPH (75.2%) and natural attenuation was more effective than biostimulation. The greatest dehydrogenase activity was observed upon bioaugmentation of the Long Beach soil (3.3-fold) and the natural attenuation of the Hong Kong soil sample (4.0-fold). The number of diesel oil degrading microorganisms and heterotrophic population was not influenced by the bioremediation treatments. The best approach for bioremediation of soil contaminated with diesel oil is the inoculum of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Natural attenuation; Bioagmentation; Biostimulation; Total petroleum hydrocarbon.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000500022