Transient puffs of trace organic emissions from a batch-fed waste propellant incinerator.


:Emissions data have been obtained from a waste propellant incinerator. The incinerator is a dual fixed hearth, controlled air incinerator equipped with acid gas and particulate scrubbing. "Puffing" has been evident in this waste propellant incinerator by spikes in the CO concentration. Transient puffs of organics may travel down the combustion chambers and lead to stack emissions. The major conclusions from this study are that (1) transient puffs are formed due to the semi-batch feed nature of the combustion process (causing a local oxygen deficiency) and high water content of the desensitized propellant; (2) in batch-fed combustors, puffs can contribute to most of the organic emissions (which are relatively low) measured with US EPA sampling and analytical methods; (3) it is estimated that batch-fed combustion contributes up to 7-18 times more emissions than steady-state combustion will generate; (4) by applying dispersion analyses to determine the amount of oxygen deficiency in the flame zone, the combustion zone concentration of CO during batch-fed operation could be as high as 160,000 ppm, compared to a measured peak stack concentration of 1200 ppm CO; and (5) an organic sample is collected and averaged over at least a 2-h period that smooths out the transient peaks of organics emissions during batch-fed operation. For emissions that are associated with long-term potential health impacts, this is an appropriate sampling method. However, if a compound has a short-term potential health impact, it may be important to measure the time-resolved emissions of the compound.






Hart JR




Has Abstract


2001-02-01 00:00:00














  • Uptake of polycyclic aromatic hydrocarbons by Trifolium pretense L. from water in the presence of a nonionic surfactant.

    abstract::A greenhouse study examined plant uptake of phenanthrene and pyrene, as representatives of polycyclic aromatic hydrocarbons (PAHs), from an aqueous solution containing a nonionic surfactant Tween 80. The uptake was conducted with 1.0 mg l(-1) phenanthrene and 0.12 mg l(-1) pyrene under a wide range of Tween 80 concent...


    pub_type: 杂志文章


    authors: Gao Y,Shen Q,Ling W,Ren L

    更新日期:2008-06-01 00:00:00

  • Preparation of Fe@Fe2O3/3D graphene composite cathode for electrochemical removal of sulfasalazine.

    abstract::In the present study, heterogeneous electro-Fenton (EF) process was applied to remove the sulfasalazine (SU) pharmaceutical from aqueous solutions. In the first part, 3D graphene loaded with Fe@Fe2O3 core-shell nanowires (Fe@Fe2O3/3D-GO) was used as a cathode electrode in the EF process. Graphene oxide (GO) was synthe...


    pub_type: 杂志文章


    authors: Amali S,Zarei M,Ebratkhahan M,Khataee A

    更新日期:2020-10-09 00:00:00

  • Effects of 17β-estradiol and 17α-ethinylestradiol on the embryonic development of the clearhead icefish (Protosalanx hyalocranius).

    abstract::Estrogenic effects of 17β-estradiol (E2) and 17α-ethinylestradiol (EE2) on animals have been widely reported. The high sensitivity of fish in the early-life stages to xenobiotics can be exploited to evaluate the developmental effects of environmentally relevant levels of E2 and EE2. In this work, clearhead icefish (Pr...


    pub_type: 杂志文章


    authors: Hu S,Zhang H,Shen G,Yuan Z,Xu T,Ji R

    更新日期:2017-06-01 00:00:00

  • Occurrence and source characterization of perfluorochemicals in an urban watershed.

    abstract::Perfluorochemicals (PFCs) are used in numerous applications, mainly as surfactants, and occur ubiquitously in the environment as complex mixtures. This study was undertaken to characterize the occurrence and sources of commonly detected PFC compounds in surface waters of the Marina catchment, a watershed that drains a...


    pub_type: 杂志文章


    authors: Nguyen VT,Reinhard M,Karina GY

    更新日期:2011-02-01 00:00:00

  • Multi-biomarker approach to investigate the state of contamination of the R. Lambro/R. Po confluence (Italy) by zebra mussel (Dreissena polymorpha).

    abstract::This study assesses the response of the zebra mussel (Dreissena polymorpha) to chemical pollution derived from the R. Lambro/R. Po confluence, which is one of the most polluted aquatic environments in Europe. The mussels were tested under laboratory conditions to water sampled in the spring and fall at three sites loc...


    pub_type: 杂志文章


    authors: Binelli A,Cogni D,Parolini M,Provini A

    更新日期:2010-04-01 00:00:00

  • Immunotoxicity of ochratoxin A and aflatoxin B1 in combination is associated with the nuclear factor kappa B signaling pathway in 3D4/21 cells.

    abstract::The co-contamination of cereals, grains, crops, and animal feeds by mycotoxins is a universal problem. Humans and animals are exposed to several mycotoxins simultaneously as evidenced by extensive studies on this topic. Yet, most studies have addressed the effects of mycotoxins individually. Aflatoxin B1 and ochratoxi...


    pub_type: 杂志文章


    authors: Hou L,Gan F,Zhou X,Zhou Y,Qian G,Liu Z,Huang K

    更新日期:2018-05-01 00:00:00

  • On the consequence of substituting maximum likelihood estimates for the observations below the limit of detection.

    abstract::Use of maximum likelihood estimation procedures with multiple imputations to replace observations below the limit of detection (LOD) has been recommended. There is concern that the use of multiple imputations may introduce variability in the data resulting in different conclusions every time the same data are statisti...


    pub_type: 杂志文章


    authors: Jain RB

    更新日期:2016-02-01 00:00:00

  • Changes in biomass activity and characteristics of activated sludge exposed to low ozone dose.

    abstract::In this paper, the response mechanism of activated sludge exposed to low-dose ozone at less than 20mgO(3)g(-1) total suspended solids (TSS) was studied by analyzing the changes in sludge activity and the evolution of C, N, P and metals from sludge following ozonation. The intracellular ATP concentration was not affect...


    pub_type: 杂志文章


    authors: Chu L,Wang J,Wang B,Xing XH,Yan S,Sun X,Jurcik B

    更新日期:2009-09-01 00:00:00

  • Structural study on inclusion complexes of cyclodextrins with organophosphorus pesticides by use of rotational strength analysis method.

    abstract::For inclusion complexes of cyclodextrins with parathinons and paraoxon, inclusion depths were estimated with the rotational strength analysis method. The inclusion depths of pesticides were sensitive to the difference in the hydrophobic properties of the phosphate and monothiophosphate groups and were in close correla...


    pub_type: 杂志文章


    authors: Ishiwata S,Kamiya M

    更新日期:2000-09-01 00:00:00

  • Temporal-spatial dynamics of anthropogenic nitrogen inputs and hotspots in a large river basin.

    abstract::Environmental pollution caused by human activities in the Yangtze River Basin (YRB), especially nitrogen pollution, has always been a hot topic. High-intensity anthropogenic nitrogen (AN) inputs have undergone some changes on account of environmental management practices in the YRB. We used the latest statistical data...


    pub_type: 杂志文章


    authors: Cui M,Guo Q,Wei R,Chen T

    更新日期:2020-12-22 00:00:00

  • Alum sludge as an efficient sorbent for hydrogen sulfide removal: Experimental, mechanisms and modeling studies.

    abstract::This paper firstly reported a systematic study of using alum sludge (waterworks residue) for H2S adsorption. Various trials were performed at ambient temperature in a fixed bed column to study the effects of H2S flow rate, sorbent bed depth on the alum sludge adsorption efficiency of H2S. The Breakthrough Curves were ...


    pub_type: 杂志文章


    authors: Ren B,Lyczko N,Zhao Y,Nzihou A

    更新日期:2020-06-01 00:00:00

  • Canine toys and training devices as sources of exposure to phthalates and bisphenol A: quantitation of chemicals in leachate and in vitro screening for endocrine activity.

    abstract::Chewing and mouthing behaviors exhibited by pet dogs are likely to lead to oral exposures to a variety of environmental chemicals. Products intended for chewing and mouthing uses include toys and training devices that are often made of plastics. The goal of the current study was to determine if a subset of phthalates ...


    pub_type: 杂志文章


    authors: Wooten KJ,Smith PN

    更新日期:2013-11-01 00:00:00

  • Time of flight secondary ion mass spectrometry studies of the distribution of metals between the soil, rhizosphere and roots of Populus tremuloides Minchx growing in forest soil.

    abstract::Time of flight secondary ion mass spectroscopy has been used to study the metal distribution at the soil/root interface of tree roots extracted from smelter-impacted soils. The results, augmented by scanning electron microscopy, show that the technique is capable of resolving metal distributions at the cellular level....


    pub_type: 杂志文章


    authors: Martin RR,Naftel SJ,Macfie S,Skinner W,Courchesne F,Séguin V

    更新日期:2004-02-01 00:00:00

  • Organochlorine compounds in mussels cultured in the Ría of Vigo: accumulation and origin.

    abstract::This paper analyzes the influence of mussel physiological conditions on bioaccumulation of organochlorine pollutants. A direct relationship between reproductive stage, lipid content and accumulation of PCBs, DDTs and HCHs was observed. The organochlorine compounds accumulated by mussels cultured in the Ría of Vigo sho...


    pub_type: 杂志文章


    authors: Suárez P,Ruiz Y,Alonso A,San Juan F

    更新日期:2013-01-01 00:00:00

  • Bi4O5I2/nitrogen-doped hierarchical carbon (NHC) composites with tremella-like structure for high photocatalytic performance.

    abstract::BiOI is a visible photocatalyst towards organic pollutant. In this work, biomass waste (withered typha grass) was used to fabricate nitrogen-doped hierarchical carbon (NHC) by an one-step carbonization route. Then NHC provided a good carrier to load the BiOI semiconductor materials by a green simple co-precipitation m...


    pub_type: 杂志文章


    authors: Jiang T,Jin J,Hou J,Tahir M,Idrees F

    更新日期:2019-08-01 00:00:00

  • Differential regulation and the underlying mechanisms of clay minerals to Escherichia coli under the stress of polymyxin B: Comparing halloysite with kaolinite.

    abstract::The reuse of polymyxin B (PMB) has attracted extensive attention. Although the resistance mechanism to PMB is clear, there are few reports on the regulation mechanisms and effects of clay minerals on bacteria induced by PMB. The focus of this study is to investigate the multidrug resistance, cell morphology and physio...


    pub_type: 杂志文章


    authors: Liu J,Wu P,Wang F,Niu W,Ahmed Z,Chen M,Lu G,Dang Z

    更新日期:2021-02-01 00:00:00

  • Trace metals in green sea turtles (Chelonia mydas) inhabiting two southern California coastal estuaries.

    abstract::Foraging aggregations of east Pacific green sea turtles (Chelonia mydas) inhabit the Seal Beach National Wildlife Refuge (SBNWR) and San Diego Bay (SDB), two habitats in southern California, USA, located near urbanized areas. Both juvenile and adult green turtles forage in these areas and exhibit high site fidelity, w...


    pub_type: 杂志文章


    authors: Barraza AD,Komoroske LM,Allen C,Eguchi T,Gossett R,Holland E,Lawson DD,LeRoux RA,Long A,Seminoff JA,Lowe CG

    更新日期:2019-05-01 00:00:00

  • Study on reaction kinetics and selective precipitation of Cu, Zn, Ni and Sn with H₂S in single-metal and multi-metal systems.

    abstract::Determination of reaction kinetics and selective precipitation of Cu, Zn, Ni and Sn with H(2)S in single-metal and multi-metal systems were studied to develop a process of metal recovery from plating wastewater. As samples, single-metal model wastewaters containing Cu, Sn, Zn or Ni, and multi-metal model wastewater co...


    pub_type: 杂志文章


    authors: Tokuda H,Kuchar D,Mihara N,Kubota M,Matsuda H,Fukuta T

    更新日期:2008-11-01 00:00:00

  • A level change in mutagenicity of Japanese tap water over the past 12 yr.

    abstract::A relative comparison study of mutagenicity in Japanese tap water was conducted for 1993 and 2005 surveys. It intended to assess the effects of advanced water treatment installations to water works, improvement of raw water quality and improvement of residual HOCl concentration controlling. Sampling points (taps) were...


    pub_type: 杂志文章


    authors: Takanashi H,Kishida M,Nakajima T,Ohki A,Akiba M

    更新日期:2011-05-01 00:00:00

  • Influence of soil type and environmental conditions on ZnO, TiO(2) and Ni nanoparticles phytotoxicity.

    abstract::Intensive development of nanotechnology will result in releasing nanoparticles (NPs) to the environment including soil. The objective of the study was the evaluation of phytotoxicity of inorganic nanoparticles and their bulk counterparts (ZnO, TiO(2) and Ni) in various soils using Phytotoxkit F™ method. The estimation...


    pub_type: 杂志文章


    authors: Jośko I,Oleszczuk P

    更新日期:2013-06-01 00:00:00

  • Heavy metals in atmospheric surrogate dry deposition

    abstract::This paper describes a methodological approach for the assessment of the amount of surrogate dry deposition of several toxic heavy metals (Cd, Cr, Cu, Ni, Pb, V, Zn) associated with atmospheric particulate matter at ground level. The objectives of the study were twofold: i) the evaluation of several techniques for the...


    pub_type: 杂志文章


    authors: Morselli L,Cecchini M,Grandi E,Iannuccilli A,Barilli L,Olivieri P

    更新日期:1999-02-01 00:00:00

  • Dioxin and dioxin-like PCB impurities in some Japanese agrochemical formulations.

    abstract::The profile and amount of dioxin impurity in agrochemicals were studied through detailed analysis of historic Japanese formulations. The chemicals analyzed include pentachlorophenol (PCP), 2,4,6-trichlorophenyl-4'-nitrophenyl ether (chloronitrofen, CNP), 2,4-dichlorophenyl-4'-nitrophenyl ether (nitrofen, NIP), tetrach...


    pub_type: 杂志文章


    authors: Masunaga S,Takasuga T,Nakanishi J

    更新日期:2001-08-01 00:00:00

  • Sublethal levels of cadmium down-regulate the gene expression of DNA mismatch recognition protein MutS homolog 6 (MSH6) in zebrafish (Danio rerio) embryos.

    abstract::MutS homolog 6 (MSH6) is the major mismatch contacting component of the MSH2-MSH6 heterodimeric complex (MutSα) that mediates DNA mismatch repair (MMR) of simple mispairs and small insertion-deletion loops in eukaryotes. This study examined the potential of cadmium (Cd) to disturb the gene expression of MSH6 in verteb...


    pub_type: 杂志文章


    authors: Hsu T,Tsai HT,Huang KM,Luan MC,Hsieh CR

    更新日期:2010-10-01 00:00:00

  • The application of positive matrix factorization in the analysis, characterisation and detection of contaminated soils.

    abstract::Multivariate factor analytical techniques are widely used for the approximation, in terms of a linear combination of factors, of multivariate experimental data. The chemical composition of soil samples are multivariate in nature and provide datasets suitable for the application of these statistical techniques. Recent ...


    pub_type: 杂志文章


    authors: Vaccaro S,Sobiecka E,Contini S,Locoro G,Free G,Gawlik BM

    更新日期:2007-10-01 00:00:00

  • Response of higher plants to lead contaminated environment.

    abstract::Lead concentration is increasing rapidly in the environment due to increased use of its sources by human society. Alarming concentrations of the metal have been reported in dust of densely populated urban areas and, water and land of various areas near the industrial waste disposals. Plants absorb lead and accumulatio...


    pub_type: 杂志文章,评审


    authors: Singh RP,Tripathi RD,Sinha SK,Maheshwari R,Srivastava HS

    更新日期:1997-06-01 00:00:00

  • Elucidating cylindrospermopsin toxicity via synthetic analogues: An in vitro approach.

    abstract::Cylindrospermopsin (CYN) is an alkaloid biosynthesized by selected cyanobacteria, the cyto- and genotoxic properties of which have been studied extensively by in vitro and in vivo experimental models. Various studies have separately established the role of uracil, guanidine and hydroxyl groups in CYN-induced toxicity....


    pub_type: 杂志文章


    authors: Evans DM,Hughes J,Jones LF,Murphy PJ,Falfushynska H,Horyn O,Sokolova IM,Christensen J,Coles SJ,Rzymski P

    更新日期:2019-11-01 00:00:00

  • Biodegradation of neonicotinoid insecticide, imidacloprid by restriction enzyme mediated integration (REMI) generated Trichoderma mutants.

    abstract::REMI (restriction enzyme-mediated integration) technique was employed to construct Trichoderma atroviride strain T23 mutants with degrading capability of neonicotinoid insecticide, imidacloprid. The plasmid pBluescript II KS-hph used for integration in REMI mutants was confirmed by PCR and Southern hybridization. Amon...


    pub_type: 杂志文章


    authors: He X,Wubie AJ,Diao Q,Li W,Xue F,Guo Z,Zhou T,Xu S

    更新日期:2014-10-01 00:00:00

  • Thermal formation of PBDD/F from tetrabromobisphenol A--a comparison of polymer linked TBBP A with its additive incorporation in thermoplastics.

    abstract::For a long period, polybrominated flame retardants are under discussion because of the formation of polybrominated dibenzo-p-dioxins (PBDD)/dibenzofurans (PBDF) (PBDD/F) in case of thermal stress. Concerning polymer linked tetrabromobisphenol A (TBBP A), formation of PBDD/F was commonly presumed to be sterically hinde...


    pub_type: 杂志文章


    authors: Wichmann H,Dettmer FT,Bahadir M

    更新日期:2002-04-01 00:00:00

  • Effect of fomesafen on the embryonic development of zebrafish.

    abstract::Fomesafen is widely used in agriculture and can be detected in the environment and agricultural products. Research on the developmental toxicity of fomesafen in animals is currently very limited. Here, we used zebrafish as an animal model to evaluate the toxicity of fomesafen in developing aquatic vertebrates and high...


    pub_type: 杂志文章


    authors: Xu Z,Ni H,Huang Y,Meng Y,Cao Z,Liao X,Zhang S,Guo X,Lu H

    更新日期:2020-11-01 00:00:00

  • How physical alteration of technic materials affects mobility and phytoavailabilty of metals in urban soils?

    abstract::One fundamental characteristic distinguishing urban soils from natural soils is the presence of technic materials or artefacts underlining the influence of human activity. These technic materials have different nature (organic or inorganic) and origins. They contribute to the enrichment of the soil solution by metalli...


    pub_type: 杂志文章


    authors: El Khalil H,Schwartz C,El Hamiani O,Sirguey C,Kubiniok J,Boularbah A

    更新日期:2016-06-01 00:00:00