Abstract：
:Carbon supplementation, soil moisture and soil aeration are believed to enhance in situ bioremediation of PAH-contaminated soils by stimulating the growth of indigenous microorganisms. However, the effects of added carbon and nitrogen together with soil moisture and soil aeration on the dissipation of PAHs and on associated microbial counts have yet to be fully assessed. In this study the effects on bioremediation of carbon source, carbon-to-nitrogen ratio, soil moisture and aeration on an aged PAH-contaminated agricultural soil were studied in microcosms over a 90-day period. Additions of starch, glucose and sodium succinate increased soil bacterial and fungal counts and accelerated the dissipation of phenanthrene and benzo(a)pyrene in soil. Decreases in phenanthrene and benzo(a)pyrene concentrations were effective in soil supplemented with glucose and sodium succinate (both 0.2 g C kg(-1) dry soil) and starch (1.0 g C kg(-1) dry soil). The bioremediation effect at a C/N ratio of 10:1 was significantly higher (P < 0.05) than at a C/N of either 25:1 or 40:1. Soil microbial counts and PAH dissipation were lower in the submerged soil but soil aeration increased bacterial and fungal counts, enhanced indigenous microbial metabolic activities, and accelerated the natural degradation of phenanthrene and benzo(a)pyrene. The results suggest that optimizing carbon source, C/N ratio, soil moisture and aeration conditions may be a feasible remediation strategy in certain PAH contaminated soils with large active microbial populations.
journal_name
Biodegradationjournal_title
Biodegradationauthors
Teng Y,Luo Y,Ping L,Zou D,Li Z,Christie Pdoi
10.1007/s10532-009-9291-xsubject
Has Abstractpub_date
2010-04-01 00:00:00pages
167-78issue
2eissn
0923-9820issn
1572-9729journal_volume
21pub_type
杂志文章相关文献
BIODEGRADATION文献大全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...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-012-9538-9
更新日期：2012-07-01 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：:Biological methane oxidation is carried out by methanotrophs, bacteria that utilize methane as their sole carbon and energy source. The enzyme they contain that is responsible for methane oxidation is methane monooxygenase, the most well studied being the soluble methane monooxygenase enzyme complexes from Methylococc...
journal_title：Biodegradation
pub_type： 杂志文章,评审
doi：10.1007/BF00696456
更新日期：1994-12-01 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：:Fungal degradation is emerging as a new powerful tool for the removal of potent neurotoxin pesticide, monocrotophos. Therefore, the present study is aimed at comparative characterization of monocrotophos degrading ability of three different fungal strains. Fungal strains were isolated from local agricultural soil by e...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-013-9672-z
更新日期：2014-06-01 00:00:00
abstract：:The biodegradation of rubber particles in rubber-soil mixtures at different rubber contents was monitored by the carbon dioxide production. The cumulative carbon dioxide production was modelled according to a two parameter exponential function. The model provides an excellent fit (R2 > 0.98) for the observed data. The...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/BF00115746
更新日期：1996-08-01 00:00:00
abstract：:Anaerobic pretreated paper process water was characterized in terms of readily biodegradable, slowly biodegradable, very slowly biodegradable and inert wastewater fractions under mesophilic and thermophilic conditions. The anaerobic pretreated paper process water contained a relatively high amount of slowly biodegrada...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1023/a:1021277305333
更新日期：2002-01-01 00:00:00
abstract：:The effect of the presence of an alternate toxic compound (phenol) on the p-nitrophenol (PNP)-degrading activity of freely suspended and calcium alginate immobilized Nocardioides sp. NSP41 was investigated. In the single substrate experiments, when the concentration of phenol and PNP was increased to 1400 mg l(-1) and...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1023/a:1026512922238
更新日期：2000-01-01 00:00:00
abstract：:Microorganisms can reduce toxic chromate to less toxic trivalent chromium [Cr(III)]. Besides Cr(OH)(3) precipitates, some soluble organo-Cr(III) complexes are readily formed upon microbial, enzymatic, and chemical reduction of chromate. However, the biotransformation of the organo-Cr(III) complexes has not been charac...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-007-9147-1
更新日期：2008-06-01 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：:Hydroxyquinol, a common metabolite of aromatic compounds, is readily auto-oxidized to hydroxyquinone. Enzymatic activities that metabolized hydroxyquinone were observed from the cell extracts of Sphingobium chlorophenolicum ATCC 39723. An enzyme capable of transforming hydroxyquinone was partially purified, and its ac...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-004-2058-5
更新日期：2005-08-01 00:00:00
abstract：:Burkholderia sp. strain AK-5 converts 4-aminophenol to maleylacetic acid via 1,2,4-trihydroxybenzene, which is unstable in vitro and non-enzymatically auto-oxidized to 2-hydroxy-1,4-benzoquinone. Crude extract of strain AK-5 retarded the auto-oxidation and reduced the substrate analogue, 2,6-dimethoxy-1,4-benzoquinone...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-010-9369-5
更新日期：2011-02-01 00:00:00
abstract：:The mechanisms occurring in a photolytic circulating-bed biofilm reactor (PCBBR) treating 2,4,6-trichlorophenol (TCP) were investigated using batch experiments following three protocols: photodegradation alone (P), biodegradation alone (B), and intimately coupled photodegradation and biodegradation (P&B). Initially, t...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-012-9534-0
更新日期：2012-07-01 00:00:00
abstract：:The pathway of anaerobic acetone degradation by the denitrifying bacterial strain BunN was studied by enzyme measurements in extracts of anaerobic acetone-grown cells. An ADP- and MgCl2-dependent decarboxylation of acetoacetate was detected which could not be found in cell-free extracts of acetate-grown cells. It is c...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/BF00119761
更新日期：1990-01-01 00:00:00
abstract：:Performance stability is a key issue when managing anaerobic digesters. However it can be affected by external disturbances caused by micropollutants. In this study the influence of phenol on the methanization of cellulose was evaluated through batch toxicity assays. Special attention was given to the dynamics of micr...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-015-9751-4
更新日期：2016-02-01 00:00:00
abstract：:A novel bacterial strain capable of degrading the pyrethroid pesticide fenpropathrin was isolated from mixed wastewater and sludge samples. Phylogenetic analysis of the 16S rDNA sequence revealed that the organism belongs to the genus Clostridium. The organism can co-metabolically transform fenpropathrin at 100 mg l(-...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-010-9444-y
更新日期：2011-09-01 00:00:00
abstract：:The need for aeration of microcosms during mineralization of 14C-labeled compounds in high oxygen demand environments was assessed using active compost-soil mixtures as the model system. Rapid mineralization of 14C-hexadecane occurred in continuously aerated microcosms while no mineralization occurred in unaerated mic...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1023/a:1008316727321
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：:A kinetic model to describe the degradation of phenol and cometabolic transformation of 4-chlorophenol (4-cp) in the presence of sodium glutamate (SG) has been developed and validated experimentally. The integrated model accounts for cell growth, toxicity of 4-cp, cross-inhibitions among the three substrates, and the ...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1023/a:1013170322269
更新日期：2001-01-01 00:00:00
abstract：:Although information about the ability of some filamentous fungi to biodegrade organophosphonates is available, the knowledge about accompanying changes in fungal metabolism is very limited. The aim of our study was to determine the utilization of the chosen, structurally diverse aminophosphonates by Aspergillus terre...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-014-9716-z
更新日期：2015-02-01 00:00:00
abstract：:In biological nitrogen removal, application of the autotrophic anammox process is gaining ground worldwide. Although this field has been widely researched in last years, some aspects as the accelerating effect of putative intermediates (mainly N₂H₄ and NH₂OH) need more specific investigation. In the current study, exp...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-012-9549-6
更新日期：2012-09-01 00:00:00
abstract：:Biosorption is an effective means of removal of heavy metals from wastewater. In this work the biosorption behavior of Cladophora fascicularis was investigated as a function of pH, amount of biosorbent, initial Cu2+ concentration, temperature, and co-existing ions. Adsorption equilibria were well described by Langmuir...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-006-9074-6
更新日期：2007-08-01 00:00:00
abstract：:Continuous bioremediation of gasoline-contaminated water in a packed-bed biobarrier system under oxygen-limited conditions is discussed. This study was part of an extensive effort to develop an alternative technology for the in situ bioremediation of hydrocarbons where there is a limited supply of oxygen. Protruded st...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1023/a:1008327815105
更新日期：1999-01-01 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：:A special low-molecular-weight peptide named Gt factor, was isolated and purified from the extracellular culture of brown-rot fungi Gloeophyllum trabeum via gel filtration chromatography and HPLC. It has been shown to reduce Fe3+ to Fe2+. Electron paramagnetic resonance (EPR) spectroscopy revealed Gt factor was able t...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1023/a:1022848414100
更新日期：2002-01-01 00:00:00
abstract：:The aerobic bacterial degradation of chloroaromatic compounds often involves chlorosubstituted catechols as central intermediates. They are converted to 3-oxoadipate in a series of reactions similar to that for catechol catabolism and therefore designated as modified ortho-cleavage pathway. Among the enzymes of this c...
journal_title：Biodegradation
pub_type： 杂志文章,评审
doi：10.1007/BF00696467
更新日期：1994-12-01 00:00:00
abstract：:Digestion of cattle manure collected from a livestock farm together with bedding material (straw) has been studied under mesophilic and thermophilic conditions in batch reactors. The digestion was carried out for a prolonged period with the aim of evaluating the changes undergone by the organic matter. The mesophilic ...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-010-9436-y
更新日期：2011-06-01 00:00:00
abstract：:Denitrifying granular sludge reactor holds better nitrogen removal efficiency than other kinds of denitrifying reactors, while this reactor commonly needs seeding anaerobic granular sludge and longer period for start-up in practice, which restricted the application of denitrifying granular sludge reactor. This study p...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-018-9851-z
更新日期：2018-12-01 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：:Soil pollution with hexachlorocyclohexane (HCH) has caused serious environmental problems. Here we describe the targeted degradation of all HCH isomers by applying the aerobic bacterium Sphingobium indicum B90A. In particular, we examined possibilities for large-scale cultivation of strain B90A, tested immobilization,...
journal_title：Biodegradation
pub_type： 杂志文章
doi：10.1007/s10532-007-9112-z
更新日期：2008-02-01 00:00:00
