Abstract：
:A continuous-flow column study was conducted to evaluate the long-term effects of in situ biostimulation on the biodegradation of polycyclic aromatic hydrocarbons (PAHs) in soil from a manufactured gas plant site. Simulated groundwater amended with oxygen and inorganic nutrients was introduced into one column, while a second column receiving unamended groundwater served as a control. PAH and dissolved oxygen (DO) concentrations, as well as microbial community profiles, were monitored along the column length immediately before and at selected intervals up to 534 days after biostimulation commenced. Biostimulation resulted in significantly greater PAH removal than in the control condition (73% of total measured PAHs vs. 34%, respectively), with dissolution accounting for a minor amount of the total mass loss (~6%) in both columns. Dissolution was most significant for naphthalene, acenaphthene, and fluorene, accounting for >20% of the total mass removed for each. A known group of PAH-degrading bacteria, 'Pyrene Group 2' (PG2), was identified as a dominant member of the microbial community and responded favorably to biostimulation. Spatial and temporal variations in soil PAH concentration and PG2 abundance were strongly correlated to DO advancement, although there appeared to be transport of PG2 organisms ahead of the oxygen front. At an estimated oxygen demand of 6.2 mg O(2)/g dry soil and a porewater velocity of 0.8 m/day, it took between 374 and 466 days for oxygen breakthrough from the 1-m soil bed in the biostimulated column. This study demonstrated that the presence of oxygen was the limiting factor in PAH removal, as opposed to the abundance and/or activity of PAH-degrading bacteria once oxygen reached a previously anoxic zone.
journal_name
Biodegradationjournal_title
Biodegradationauthors
Richardson SD,Jones MD,Singleton DR,Aitken MDdoi
10.1007/s10532-012-9538-9subject
Has Abstractpub_date
2012-07-01 00:00:00pages
621-33issue
4eissn
0923-9820issn
1572-9729journal_volume
23pub_type
杂志文章相关文献
BIODEGRADATION文献大全abstract：:A Gram-positive, Micrococcus sp. strain PS-1 capable of utilizing phenylurea herbicide diuron as a sole carbon source at a high concentration (up to 250 ppm) was isolated from diuron storage site by selective enrichment study. The taxonomic characterization with 16S rRNA gene sequencing (1,477 bp) identified PS-1 as a...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-010-9357-9
更新日期：2010-11-01 00:00:00
abstract：:Rubrivivax benzoatilyticus JA2 utilizes L: -tryptophan as the sole source of nitrogen for growth, and it has a doubling time of approximately 11 h (compared to 8 h with ammonium chloride). With cell free extracts in the presence of 2-oxoglutarate, indole-3-pyruvic acid, indole-3-acetaldehyde, indole-3-acetic acid, isa...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-010-9347-y
更新日期：2010-09-01 00:00:00
abstract：:Studied was the effect of temperature in the range 12-46 degrees C on the rate of bacterial decolorization of the mono-azo dye Acid Orange 7 by Alcaligenes faecalis 6132 and Rhodococcus erythropolis 24. With both strains the raise of temperature led to a corresponding raise of decolorization rate better manifested by ...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-007-9144-4
更新日期：2008-06-01 00:00:00
abstract：:The dissipation of atrazine, chlorpyrifos and iprodione in a biopurification system and changes in the microbial and some biological parameters influenced by the rhizosphere of Lolium perenne were studied in a column system packed with an organic biomixture. Three column depths were analyzed for residual pesticides, p...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-017-9804-y
更新日期：2017-12-01 00:00:00
abstract：:This study investigated the acclimation potential of batch fed anaerobic biomass with salinities of 0-50 gNaCl l(-1). Anaerobic biomass was acclimatized to salinities up to 20 gNaCl l(-1)over a period of 35 days, with 3 consecutive feedings. After this period the biomass was subjected to non-saline conditions to simul...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-008-9210-6
更新日期：2009-04-01 00:00:00
abstract：:Heavy contamination of soil with crude oil has caused significant negative environmental impacts and presents substantial hazards to human health. To explore a highly efficient bioaugmentation strategy for these contaminations, experiments were conducted over 180 days in soil heavily contaminated with crude oil (50,00...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-015-9732-7
更新日期：2015-06-01 00:00:00
abstract：:A coryneform bacterium that is able to utilize cis- and trans-3-chloroacrylic acid as sole carbon source for growth was isolated from freshwater sediment. The organism was found to produce two inducible dehalogenases, one specific for the cis- and the other for trans-3-chloroacrylic acid. Both dehalogenases were purif...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/BF00124488
更新日期：1991-01-01 00:00:00
abstract：:Aerosol delivery was evaluated for distributing biostimulation and bioaugmentation amendments in vadose zones. This technique involves transporting amendments as micron-scale aerosol droplets in injected gas. Microcosm experiments were designed to characterize reductive dechlorination of trichloroethene (TCE) under un...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-015-9718-5
更新日期：2015-04-01 00:00:00
abstract：:The performance of diesel oil degradation by Candida tropicalis immobilized on various conventional matrices (sodium alginate, carboxyl methyl cellulose, chitosan) and biowaste materials (wheat bran, sawdust, peanut hull powder) was investigated using the method of entrapment and physical adsorption. The yeast species...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-011-9473-1
更新日期：2011-11-01 00:00:00
abstract：:Anthropogenic activities have introduced elevated levels of brominated phenols to the environment. These compounds are associated with toxic and endocrine effects, and their environmental fate is of interest. An aerobic strain Ochrobactrum sp. HI1 was isolated from soils in the vicinity of a bromophenol production pla...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-018-9860-y
更新日期：2019-02-01 00:00:00
abstract：:This study aimed at characterizing a biosurfactant from Candida utilis, and use it in the preparation of salad dressings. The biosurfactant was produced in mineral medium supplemented with 6% glucose and 6% waste frying canola oil. The crude biosurfactant was then tested for stability in different conditions of pH, sa...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-019-09877-8
更新日期：2019-08-01 00:00:00
abstract：:In this paper, Fourier Transform infrared spectroscopy (FTIR) along with thermogravimetric analysis together with mass spectrometry (TG-MS analysis) were employed to study the organic matter transformation attained under anaerobic digestion of slaughterhouse waste and to establish the stability of the digestates obtai...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-009-9322-7
更新日期：2010-07-01 00:00:00
abstract：:The objective of the present work was to analyze the interrelationship between the aerobic degradation of BPA and readily biodegradable substrates by activated sludge (AS) in semi-continuous reactors (SCRs). AS were obtained from three SCRs fed with glucose, acetate or peptone. AS from these reactors were used as inoc...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-018-9854-9
更新日期：2018-12-01 00:00:00
abstract：:The anaerobic degradation of the polyesters poly-3-hydroxybutyrate (PHB) and poly-3-hydroxybutyrate-co-3-hydroxyvalerate (PHBV) was investigated with special regard to intermediate products, kinetics, and yields. During the degradation of PHBV acetate, propionate, n-butyrate, and n-valerate were detected. Additionally...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1023/a:1008203525476
更新日期：1997-01-01 00:00:00
abstract：:The use of anaerobic processes to treat low-strength wastewater has been increasing in recent years due to their favourable performance-costs balance. For optimal results, it is necessary to identify reactor configurations that are best suited for this kind of application. This paper reports on the comparative study c...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-010-9339-y
更新日期：2010-09-01 00:00:00
abstract：:The capacity of the beta-Proteobacterium Pseudomonas sp. strain P51, which degrades chlorinated benzenes, to metabolize 1,2,4-trichlorobenzene (TCB) under environmental conditions was tested by its release into two experimental systems. The first system consisted of laboratory scale microcosms which were operated with...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1023/a:1008368006917
更新日期：1999-04-01 00:00:00
abstract：:The ability of bacterial cultures to degrade diethanolamine under anoxic conditions with nitrate as an electron acceptor was investigated. A mixed culture capable of anaerobic degradation of diethanolamine was obtained from river sediments by enrichment culture. From this a single bacterial strain was isolated which c...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/BF00058178
更新日期：1996-06-01 00:00:00
abstract：:Oxygenation reactions significantly alter the energy and electron flows and, consequently, the overall stoichiometry for the microbial utilization of aromatic compounds. Oxygenation reactions do not yield a net release of electrons, but require an input of electrons to reduce oxygen molecules. The biodegradation pathw...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1023/a:1011162830401
更新日期：2000-01-01 00:00:00
abstract：:We have previously shown that the filamentous fungus, Penicillium janthinellum SFU403 (SFU403) oxidizes pyrene to pyrene 1,6- and 1,8-quinones and that the level of pyrenequinones (PQs) subsequently declines suggesting that PQs are not terminal metabolites. The purpose of this study was to determine the fate of PQs in...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1023/a:1011180231044
更新日期：2000-01-01 00:00:00
abstract：:Air-born mixed fungal and bacterial culture capable of complete degradation of ciliatine was isolated. The utilization of the natural organophosphonate proceeded in the phosphate independent manner. Enzymatic activity involved in ciliatine degradation studied in the fungal cell-free extract proved to be distinct from ...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-006-9057-7
更新日期：2007-04-01 00:00:00
abstract：:A Monte Carlo model was developed to characterize the molecular composition of polychlorinated alkane mixtures. The model is based upon a simulation of the free-radical chlorination process by which polychlorinated alkane mixtures are produced industrially from n-alkanes. In the model, the free-radical chlorination re...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-007-9099-5
更新日期：2007-12-01 00:00:00
abstract：:In a recent study on the degradation of N,N'-dibutylurea (DBU), a breakdown product of benomyl [methyl 1-(butylcarbamoyl)-2-benzimidazole carbamate], the active ingredient in Benlate fungicides, degradation half-lives of 1.4-46.5 days were observed across several soils incubated at various combinations of soil moistur...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-004-1361-5
更新日期：2005-06-01 00:00:00
abstract：:Fuel and lubricating oil leaks produce an oily wastewater that creates an environmental problem for industries. Dissolved air flotation (DAF) has been successfully employed for the separation of oily contaminants. Collectors constitute an auxiliary tool in the DAF process that enhances the separation efficiency by fac...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-019-09881-y
更新日期：2019-08-01 00:00:00
abstract：:The impacts of feeding ratio and loading rate on the microbial community during co-digestion of grass silage with cow manure in an anaerobic laboratory continuously stirred tank reactor were investigated by 16S rRNA gene-based fingerprints. The microbial community remained stable when the reactor was fed with cow manu...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-009-9288-5
更新日期：2010-02-01 00:00:00
abstract：:The importance of nickel (added as NiCl2) on mesophilic anaerobic fermentation of Phragmites australis straw and cow dung was demonstrated by investigating the biogas properties, pH values, organic matter degradation [chemical oxygen demand (COD)] and enzyme activities (cellulase, protease and dehydrogenase) during th...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-016-9774-5
更新日期：2017-02-01 00:00:00
abstract：:Pyridine and pyridine based products are of major concern as environmental pollutants due to their recalcitrant, persistent, toxic and teratogenic nature. In this study, we describe biodegradation of pyridine by an isolated consortium/strain under aerobic condition. Batch experiment results reveal that at lower initia...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-008-9176-4
更新日期：2008-09-01 00:00:00
abstract：:The natural estrogen 17beta-estradiol (E2) is a major endocrine disruptor, with adverse effects on wildlife and humans. The aim of this study was to isolate microorganisms able to effectively remove E2 from wastewater. Accordingly, five E2-degrading strains of bacteria were isolated from activated sludge collected fro...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-010-9338-z
更新日期：2010-09-01 00:00:00
abstract：:A biomass adapted to degrade toluene and xylenes in mixture was grown in a batch reactor with substrates supplied by pulses. The inhibition of biomass growth in the course of substrate degradation was investigated. The maximal biomass concentration of 7 g l-1 was obtained using 150 microliters of toluene and 15 microl...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1023/a:1008363422254
更新日期：1999-01-01 00:00:00
abstract：:Rhodococcus sp. BX2 degrades bensulfuron-methyl but not butachlor, and Acinetobacter sp. LYC-1 degrades butachlor but not bensulfuron-methyl. Functional strains were constructed through protoplast fusion of Rhodococcus sp. BX2 and Acinetobacter sp. LYC-1 to generate fusants with an improved ability to simultaneously d...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-012-9556-7
更新日期：2013-02-01 00:00:00
abstract：:Reductive dechlorination is an advantageous process to microorganisms under anaerobic conditions because it is an electron sink, thereby allowing reoxidation of metabolic intermediates. In some organisms this has been demonstrated to support growth. Many chlorinated compounds have now been shown to be reductively dech...
journal_title：Biodegradation
pub_type： 杂志文章,评审
doi：10.1007/BF00695971
更新日期：1993-01-01 00:00:00
