Keyword search (3,448 papers available)


Partial purification, kinetic analysis, and amino acid sequence information of a flavonol 3-O-methyltransferase from Serratula tinctoria.

Author(s): Huang TS, Anzellotti D, Dedaldechamp F, Ibrahim RK

Plant Physiol. 2004 Apr;134(4):1366-76 Authors: Huang TS, Anzellotti D, Dedaldechamp F, Ibrahim RK

Article GUID: 15084728
Effects of surfactants on rhizodegradation of oil in a contaminated soil.

Author(s): Memarian R, Ramamurthy AS

J Environ Sci Health A Tox Hazard Subst Environ Eng. 2012;47(10):1486-90 Authors: Memarian R, Ramamurthy AS

Article GUID: 22571537
Enzymatic assay for GHB determination in forensic matrices.

Author(s): Grenier V, Huppé G, Lamarche M, Mireault P

J Anal Toxicol. 2012 Sep;36(7):523-8 Authors: Grenier V, Huppé G, Lamarche M, Mireault P

Article GUID: 22722059
Odorous gaseous emissions as influence by process condition for the forced aeration composting of pig slaughterhouse sludge.

Author(s): Blazy V, de Guardia A, Benoist JC, Daumoin M, Lemasle M, Wolbert D, Barrington S

Waste Manag. 2014 Jul;34(7):1125-38 Authors: Blazy V, de Guardia A, Benoist JC, Daumoin M, Lemasle M, Wolbert D, Barrington S

Article GUID: 24768513
Development of a particle-trap preconcentration-soft ionization mass spectrometric technique for the quantification of mercury halides in air

Author(s): Deeds DA; Ghoshdastidar A; Raofie F; Guérette ÉA; Tessier A; Ariya PA;

Measurement of oxidized mercury, Hg(II), in the atmosphere poses a significant analytical challenge as Hg(II) is present at ultra-trace concentrations (picograms per cubic meter air). Current technologies are sufficiently sensitive to measure the total Hg p...

Article GUID: 25837315
Lithocholic bile acid accumulated in yeast mitochondria orchestrates a development of an anti-aging cellular pattern by causing age-related changes in cellular proteome.

Author(s): Beach A, Richard VR, Bourque S, Boukh-Viner T, Kyryakov P, Gomez-Perez A, Arlia-Ciommo A, Feldman R, Leonov A, Piano A, Svistkova V, Titorenko VI

Cell Cycle. 2015;14(11):1643-56 Authors: Beach A, Richard VR, Bourque S, Boukh-Viner T, Kyryakov P, Gomez-Perez A, Arlia-Ciommo A, Feldman R, Leonov A, Piano A, Svistkova V, Titorenko VI

Article GUID: 25839782
Electrochemical efficacy of a carboxylated multiwalled carbon nanotube filter for the removal of ibuprofen from aqueous solutions under acidic conditions.

Author(s): Bakr AR, Rahaman MS

Chemosphere. 2016 Jun;153:508-20 Authors: Bakr AR, Rahaman MS

Article GUID: 27035389
On-chip integration of droplet microfluidics and nanostructure-initiator mass spectrometry for enzyme screening

Author(s): Joshua Heinemann

Biological assays often require expensive reagents and tedious manipulations. These shortcomings can be overcome using digitally operated microfluidic devices that require reduced sample volumes to automate assays. One particular challenge is integrating bi...

Article GUID: 27957569
Varying the rate of intravenous cocaine infusion influences the temporal dynamics of both drug and dopamine concentrations in the striatum

Author(s): Minogianis EA; Shams WM; Mabrouk OS; Wong JT; Brake WG; Kennedy RT; du Souich P; Samaha AN;...

The faster drugs of abuse reach the brain, the greater is the risk of addiction. Even small differences in the rate of drug delivery can influence outcome. Infusing cocaine intravenously over 5 vs....

Article GUID: 29757478
Title:Odorous gaseous emissions as influence by process condition for the forced aeration composting of pig slaughterhouse sludge.
Authors:Blazy V,  de Guardia A,  Benoist JC,  Daumoin M,  Lemasle M,  Wolbert D,  Barrington S
Link:https://www.ncbi.nlm.nih.gov/pubmed/24768513?dopt=Abstract
DOI:10.1016/j.wasman.2014.03.012
Category:Waste Manag
PMID:24768513
Dept Affiliation: MASSSPEC
1 Irstea, UR GERE, 17 Avenue de Cucillé, CS 64427, F-35044 Rennes, France. Electronic address: vincent.blazy@irstea.fr.
2 Irstea, UR GERE, 17 Avenue de Cucillé, CS 64427, F-35044 Rennes, France. Electronic address: amaury.de-guardia@irstea.fr.
3 Irstea, UR GERE, 17 Avenue de Cucillé, CS 64427, F-35044 Rennes, France.
4 Laboratoire Sciences Chimiques de Rennes - équipe Chimie et Ingénierie des Procédés, UMR 6226 CNRS, ENSCR, Avenue du Général Leclerc, 35700 Rennes, France.
5 Irstea, UR GERE, 17 Avenue de Cucillé, CS 64427, F-35044 Rennes, France; Concordia University, Department of Building, Civil and Environmental Engineering, 1455 de Maisonneuve, Montréal, QC H3G 1M8, Canada. Electronic address: suzellebarrington@sympatico.ca.

Description:

Odorous gaseous emissions as influence by process condition for the forced aeration composting of pig slaughterhouse sludge.

Waste Manag. 2014 Jul;34(7):1125-38

Authors: Blazy V, de Guardia A, Benoist JC, Daumoin M, Lemasle M, Wolbert D, Barrington S

Abstract

Compost sustainability requires a better control of its gaseous emissions responsible for several impacts including odours. Indeed, composting odours have stopped the operation of many platforms and prevented the installation of others. Accordingly, present technologies collecting and treating gases emitted from composting are not satisfactory and alternative solutions must be found. Thus, the aim of this paper was to study the influence of composting process conditions on gaseous emissions. Pig slaughterhouse sludge mixed with wood chips was composted under forced aerationin 300 L laboratory reactors. The process conditions studied were: aeration rate of 1.68, 4.03, 6.22, 9.80 and 13.44 L/h/kg of wet sludge; incorporation ratio of 0.55, 0.83 and 1.1 (kg of wet wood chips/kg of wet sludge), and; bulking agent particles size of <10, 10<20 and 20<30 mm. Out-going gases were sampled every 2 days and their composition was analysed using gas chromatography coupled with mass spectrometry (GC-MS). Fifty-nine compounds were identified and quantified. Dividing the cumulated mass production over 30 days of composting, by odour threshold, 9 compounds were identified as main potential odour contributors: hydrogen sulphide, trimethylamine, ammonia, 2-pentanone, 1-propanol-2-methyl, dimethyl sulphide, dimethyl disulphide, dimethyl trisulphide and acetophenone. Five gaseous compounds were correlated with both aeration rate and bulking agent to waste ratio: hydrogen sulphide, trimethylamine, ammonia, 2-pentanone and 1-propanol-2-methyl. However, dropping the aeration rate and increasing the bulking agent to waste ratio reduced gaseous odour emissions by a factor of 5-10, when the required threshold dilution factor ranged from 10(5) to 10(6), to avoid nuisance at peak emission rates. Process influence on emissions of dimethyl sulphide, dimethyl disulphide, dimethyl trisulphide were poorly correlated with both aeration rate and bulking agent to waste ratio as a reaction with hydrogen sulphide was suspected. Acetophenone emissions originated from the wood chips. Olfactory measurements need to be correlated to gaseous emissions for a more accurate odour emission evaluation.

PMID: 24768513 [PubMed - indexed for MEDLINE]