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1. Chlorinated paraffins in hinges of kitchen appliances

Author:
Sprengel, Jannik; Vetter, Walter
Source:
Environmental monitoring and assessment 2021 v.193 no.5 pp. 250
ISSN:
0167-6369
Subject:
volatilization,   etc   ; microwave ovens; pasta; steam;     Show all 4 Subjects
Abstract:
... Chlorinated paraffins (CPs) are anthropogenic pollutants of growing environmental concern. These highly complex mixtures of thousands of homologs and congeners are usually applied as additives in lubricants or as flame retardants and plasticizers in polymers and paints. Recent studies indicated the presence of high amounts of CPs in the kitchen environment whose sources could not be unequivocally ...
DOI:
10.1007/s10661-021-09023-z

2. A simple and easy method to measure ammonia volatilization: Accuracy under field conditions

Author:
MARTINS, Márcio R.; SARKIS, Leonardo F.; GUARESCHI, Roni F.; SANTOS, Camila A.; SANT'ANNA, Selenobaldo A.C.; ZAMAN, Mohammad; JANTALIA, Claudia P.; ALVES, Bruno J.R.; BODDEY, Robert M.; ARAÚJO, Ednaldo S.; URQUIAGA, Segundo
Source:
Pedosphere 2021 v.31 no.2 pp. 255-264
ISSN:
1002-0160
Subject:
volatilization,   etc   ; ammonia; corn; lysimeters; soil;     Show all 5 Subjects
Abstract:
... Field studies on soil ammonia (NH₃) volatilization are restricted in many countries owing to the high costs commonly demanded for accurate quantification. We assessed the accuracy of a simple, open chamber design to capture NH₃ under field conditions, as affected by different chamber placement schemes. Urea-¹⁵N was surface applied to lysimeters installed in the spaces between maize rows. Open cham ...
DOI:
10.1016/S1002-0160(20)60077-7

3. Optimizing the use of open chambers to measure ammonia volatilization in field plots amended with urea

Author:
MARTINS, Márcio R.; SARKIS, Leonardo F.; SANT'ANNA, Selenobaldo A.C.; SANTOS, Camila A.; ARAUJO, Karla E.; SANTOS, Ricardo C.; ARAÚJO, Ednaldo S.; ALVES, Bruno J.R.; JANTALIA, Claudia P.; BODDEY, Robert M.; ZAMAN, Mohammad; URQUIAGA, Segundo
Source:
Pedosphere 2021 v.31 no.2 pp. 243-254
ISSN:
1002-0160
Subject:
volatilization,   etc   ; ammonia; nitrogen; uncertainty; urea;     Show all 5 Subjects
Abstract:
... Measuring ammonia (NH₃) volatilization from urea-fertilized soils is crucial for evaluation of practices that reduce gaseous nitrogen (N) losses in agriculture. The small area of chambers used for NH₃ volatilization measurements compared with the size of field plots may cause significant errors if inadequate sampling strategies are adopted. Our aims were: i) to investigate the effect of using mult ...
DOI:
10.1016/S1002-0160(20)60078-9

4. Determination of Hg in xanthan gum by CV AAS after acid decomposition using reflux system

Author:
Bonemann, Daisa Hakbart; de Souza, Alexander Ossanes; Pereira, Camila Corrêa; Oreste, Eliézer Quadro; Ribeiro, Anderson Schwingel; Vieira, Mariana Antunes
Source:
Food hydrocolloids 2021 v.118 pp. 106802
ISSN:
0268-005X
Subject:
volatilization,   etc   ; atomic absorption spectrometry; hydrocolloids; xanthan gum;     Show all 4 Subjects
Abstract:
... The present work describes a sample preparation method using acid decomposition in reflux system for the determination of Hg on xanthan gum samples by cold vapor atomic absorption spectrometry (CV AAS). The best conditions of sample preparation method were optimized. This procedure proved to be safe for the quantification of this analyte, because no significant losses of Hg by volatilization, whic ...
DOI:
10.1016/j.foodhyd.2021.106802

5. One-step extraction of high-purity CuCl2·2H2O from copper-containing electroplating sludge based on the directional phase conversion

Author:
Yu, Yao; Huang, Qiuyun; Zhou, Jin; Wu, Zhen; Deng, Hong; Liu, Xueming; Lin, Zhang
Source:
Journal of hazardous materials 2021 v.413 pp. 125469
ISSN:
0304-3894
Subject:
volatilization,   etc   ; chlorination; copper; equations; heavy metals; sludge;     Show all 6 Subjects
Abstract:
... The recovery of heavy metals is a vital way to turn electroplating sludge into resources and reduce its environmental hazards. However, the complex compositions of the polymetallic electroplating sludge severely limit the selective recovery of metal resources such as copper. In this study, we took a kind of copper-containing electroplating sludge (C-ES) as an example present and investigated the p ...
DOI:
10.1016/j.jhazmat.2021.125469

6. Investigation of the quantum vacuum as an energy sink for subcritical and supercritical vaporization lasers

Author:
Lee, Jeffrey S.; Cleaver, Gerald B.
Source:
Heliyon 2020 v.6 no.1 pp. e03210
ISSN:
2405-8440
Subject:
volatilization,   etc   ; electric field; energy;     Show all 3 Subjects
Abstract:
... In this paper, it is shown that the quantum electrodynamic vacuum particle production rate by a vaporization laser is negligible and is not a significant energy sink at electric field strengths beyond the Schwinger Limit. ...
DOI:
10.1016/j.heliyon.2020.e03210

7. Effect of coal blending on arsenic and fine particles emission during coal combustion

Author:
Zhao, Bo; Chen, Geng; Qin, Linbo; Han, Yuxin; Zhang, Qiang; Chen, Wangsheng; Han, Jun
Source:
Journal of cleaner production 2021 v.311 pp. 127645
ISSN:
0959-6526
Subject:
volatilization,   etc   ; aluminum silicates; arsenic; coal; combustion; particulates; temperature;     Show all 7 Subjects
Abstract:
... In this paper, the blending coal technology was proposed to control arsenic emission during coal combustion. The experimental results demonstrated that the blending coal could suppress the fine particles formation during coal combustion. Meanwhile, it was also found that arsenic mass size distribution was not consistent with particulate matter mass size distribution. Heshan (HS) and Huolinhe (HLH) ...
DOI:
10.1016/j.jclepro.2021.127645

8. Ultrasound-sensitive nanodroplets achieve targeted neuromodulation

Author:
Lea-Banks, Harriet; Meng, Ying; Wu, Sheng-Kai; Belhadjhamida, Rania; Hamani, Clement; Hynynen, Kullervo
Source:
Journal of controlled release 2021 v.332 pp. 30-39
ISSN:
0168-3659
Subject:
volatilization,   etc   ; blood-brain barrier; motor cortex; pentobarbital; therapeutics; ultrasonics;     Show all 6 Subjects
Abstract:
... Focused ultrasound (FUS) offers an attractive tool for non-invasive neuromodulation, addressing a clinical need to develop more minimally invasive approaches that are safer, more tolerable and versatile. In combination with a cavitation agent, the effects of ultrasound can be amplified and localized for therapy. Using c-Fos expression mapping, we show how ultrasound-sensitive nanodroplets can be u ...
DOI:
10.1016/j.jconrel.2021.02.010

9. Webbing a network of reliable thermochemistry around lignin building blocks: tri-methoxy-benzenes

Author:
Verevkin, Sergey P.; Turovtsev, Vladimir V.; Andreeva, Irina V.; Orlov, Yurij D.; Pimerzin, Aleksey A.
Source:
RSC advances 2021 v.11 no.18 pp. 10727-10737
ISSN:
2046-2069
Subject:
volatilization,   etc   ; benzene; combustion; enthalpy; feedstocks; lignin; quantum mechanics; vapor pressure;     Show all 8 Subjects
Abstract:
... Methoxy-substituted benzenes are the simplest fragments from the lignin separation feedstock. Extensive experimental thermochemical studies of these compounds were carried out, including vapor pressure measurements, combustion and differential scanning calorimetry. These data were evaluated using empirical, semi-empirical and quantum chemical methods. The consistent sets of evaluated thermodynamic ...
DOI:
10.1039/d1ra00690h

10. Magnitude and decline of pesticide co‐formulant residues in vegetables and fruits: results from field trials compared to estimated values

Author:
Balmer, Marianne E; Janser, Daniel; Schaller, Ulrich; Krauss, Jürgen; Geiser, H Christoph; Poiger, Thomas
Source:
Pest management science 2021 v.77 no.3 pp. 1187-1196
ISSN:
1526-498X
Subject:
volatilization,   etc   ; celery; half life; parsley; pesticides; plant protection; prediction; solvents;     Show all 8 Subjects
Abstract:
... BACKGROUND: The application of plant protection products (PPPs) leads to the formation of residues in treated crops. Even though PPPs contain considerable amounts of co‐formulants, regulation and monitoring of residues normally focus on the active substances (a.s.) only. For our study we selected four commonly used co‐formulants (three anionic surfactants and one organic solvent) and investigated ...
DOI:
10.1002/ps.6128

11. Study on the mechanism of volume expansion and texture formation of apple cube dried by instant controlled pressure drop drying (DIC)

Author:
Li, Xiao; Bi, Jinfeng; Jin, Xin; Lyu, Jian; Wu, Xinye; Li, Bin; Li, Xuan
Source:
Journal of food engineering 2021 v.293 pp. 110379
ISSN:
0260-8774
Subject:
volatilization,   etc   ; apples; energy conversion; hardness; porosity; texture; water content;     Show all 7 Subjects
Abstract:
... In order to control the quality of the DIC dried food products, this study investigated the energy conversion and the expansion force generation mechanism at the instantaneous pressure drop during the DIC treatment. Their effects on the product texture formation were analyzed. The results showed that the instantaneous vaporization of water at the moment of decompression could generated the expansi ...
DOI:
10.1016/j.jfoodeng.2020.110379

12. Recovery efficiency of applied and residual nitrogen fertilizer in tomatoes grown on sandy soils using the 15N technique

Author:
Jalpa, Laura; Mylavarapu, Rao S.; Hochmuth, George; Wright, Alan; van Santen, Edzard
Source:
Scientia horticulturae 2021 v.278 pp. 109861
ISSN:
0304-4238
Subject:
volatilization,   etc   ; coastal plains; fertilizer rates; nitrates; nitrogen fertilizers; spring; Florida;     Show all 7 Subjects
Abstract:
... Plant use efficiency of applied N is estimated to be around 50 % for most crops. In coastal plain sandy soils particularly, leaching along with volatilization in warmer climates may be a predominant pathway for N loss to the environment. A replicated field study to determine both crop N requirement and recovery efficiency of N (REN) in tomatoes (var. BHN 602) grown on sandy soils under a plastic-m ...
DOI:
10.1016/j.scienta.2020.109861

13. A Scenario of a Fiber Formation Mechanism in Electrospinning: Jet Evolves Assemblies of Phase-Separated Strings That Eventually Split into As-spun Fibers Observed on the Grounded Collector

Author:
Wang, Chi; Hashimoto, Takeji
Source:
Macromolecules 2020 v.53 no.21 pp. 9584-9600
ISSN:
1520-5835
Subject:
volatilization,   etc   ; crystallization; deformation; solidification; solvents;     Show all 5 Subjects
Abstract:
... Electrospinning of polymer solutions involves self-organization of dissipative structures to order through fluctuations, providing one of the fundamental research topics in statistical physics of nonequilibrium systems. In this work, we found that the electrospun poly(vinyl alcohol) aqueous solutions evolve, in cascade, hierarchically self-organized dissipative structures along the electrospinning ...
DOI:
10.1021/acs.macromol.0c00741

14. Identification and specific expression patterns in flower organs of ABCG genes related to floral scent from Prunus mume

Author:
Hao, Ruijie; Yang, Shuting; Zhang, Zhongqiang; Zhang, Yajing; Chang, Jun; Qiu, Chen
Source:
Scientia horticulturae 2021 v.288 pp. 110218
ISSN:
0304-4238
Subject:
volatilization,   etc   ; Prunus mume; RNA; acetates; air; benzaldehyde; benzyl alcohol; cell membranes; flowers; odors; sequence analysis;     Show all 11 Subjects
Abstract:
... Prunus mume has a unique floral scent feature that can volatilize a large amount of benzyl acetate into the air during flowering. At present, the efficient volatilization mechanism of P. mume floral scent components is still unclear. The volatilization of the key aromatic components in P. mume 'Caizhi Wufen' was explored in different parts of flowers. Our results showed that filaments are the key ...
DOI:
10.1016/j.scienta.2021.110218

15. Biochar modulates mineral nitrogen dynamics in soil and terrestrial ecosystems: A critical review

Author:
Ahmad, Zahoor; Mosa, Ahmed; Zhan, Lu; Gao, Bin
Source:
Chemosphere 2021 v.278 pp. 130378
ISSN:
0045-6535
Subject:
volatilization,   etc   ; biochar; cost effectiveness; decontamination; mineralization; nitrogen; nitrogen cycle; nitrogen fixation; nutrient use efficiency; runoff; soil;     Show all 11 Subjects
Abstract:
... Biochar, over the last two decades, has become the focal point of agro-environmental research given its unique functionality, cost-effectiveness and recyclability potentials. It has been studied intensively as an efficient scavenger for the decontamination of several organic and inorganic pollutants. However, the ability of biochar to modulate nitrogen (N) dynamics in soil and terrestrial ecosyste ...
DOI:
10.1016/j.chemosphere.2021.130378

16. Double-edged effects of polyvinyl chloride addition on heavy metal separation and biochar production during pyrolysis of Cd/Zn hyperaccumulator

Author:
Cui, Xiaoqiang; Zhang, Jianwei; Pan, Minghui; Lin, Qiang; Khan, Muhammad Bilal; Yang, Xiaoe; He, Zhenli; Yan, Beibei; Chen, Guanyi
Source:
Journal of hazardous materials 2021 v.416 pp. 125793
ISSN:
0304-3894
Subject:
volatilization,   etc   ; Sedum; biochar; heavy metals; hyperaccumulators; phytoremediation; poly(vinyl chloride); pyrolysis; sorption; temperature; wastes;     Show all 11 Subjects
Abstract:
... Pyrolysis is a promising technique to achieve the sustainable utilization of heavy metal hyperaccumulator derived from phytoremediation of contaminated soils. To investigate the feasibility of synergistic treatment of hyperaccumulator and plastic waste (i.e. polyvinyl chloride, PVC), co-pyrolysis of Sedum alfredii and different mass percentages of PVC (5–25 wt%) was conducted at 300–900 °C in the ...
DOI:
10.1016/j.jhazmat.2021.125793

17. Mixing state of printer generated ultrafine particles: Implications for the complexity of indoor aerosols

Author:
Wang, Hao; He, Congrong; Modini, Rob L.; Wang, Wenlu; Lu, Haoxian; Morawska, Lidia
Source:
Atmospheric environment 2021 v.259 pp. 118550
ISSN:
1352-2310
Subject:
volatilization,   etc   ; air quality; environment; humidification; hydrophobicity; hygroscopicity; models; printers; relative humidity; toxicology;     Show all 10 Subjects
Abstract:
... The operation of laser printers can lead to the emission of high numbers of ultrafine particles. Evidence on the toxicology and adverse health effects of these particles has been mounting, however few studies have investigated the complexity of these particles in terms of their volatility, hygroscopicity and mixing state. This study utilized a Volatility Hygroscopic Tandem Differential Mobility An ...
DOI:
10.1016/j.atmosenv.2021.118550

18. Arsenic removal from copper slag matrix by high temperature sulfide-reduction-volatilization

Author:
Zhao, Zongwen; Wang, Zhongbing; Xu, Wenbin; Qin, Weining; Lei, Jie; Dong, Zhunqin; Liang, Yanjie
Source:
Journal of hazardous materials 2021 v.415 pp. 125642
ISSN:
0304-3894
Subject:
volatilization,   etc   ; arsenic; arsenic oxide; cations; glass; oxygen; pyrite; slags; temperature; thermal stability;     Show all 10 Subjects
Abstract:
... Arsenic contamination has been a major problem in copper slag utilization. Arsenic is easily incorporated into the silicate-based matrix, making the arsenic difficult to volatilize. In this study, pyrite was selected to depolymerize the matrix structure and volatilize the glassy arsenic by sulfide-reduction-volatilization reaction. The optimum technological parameters and mechanism of glassy arsen ...
DOI:
10.1016/j.jhazmat.2021.125642

19. Effects of carbohydrates on NO[formula omitted] precursor formation from proteins during sewage sludge pyrolysis

Author:
Guo, Shuai; Liu, Tiecheng; Che, Deyong; Liu, Hongpeng; Sun, Baizhong
Source:
Environmental technology & innovation 2021 v.23 pp. 101594
ISSN:
2352-1864
Subject:
volatilization,   etc   ; Maillard reaction; activation energy; environmental technology; nitrogen; protein degradation; pyrolysis; sewage sludge; spectroscopy;     Show all 9 Subjects
Abstract:
... In this study, sludge component extraction was used to probe the effects of carbohydrates on the pyrolytic formation of NOx precursors from sludge protein (SP), and the volatilization behaviors of degreased sludge (DS) and SP were studied using thermogravimetry-Fourier transform infrared spectrometry. The main nitrogen-containing gases produced by sludge pyrolysis were identified as NH₃ and HCN, a ...
DOI:
10.1016/j.eti.2021.101594

20. Ammonia chloride assisted air-chlorination recovery of tin from pyrometallurgical slag of spent lead-acid battery

Author:
Li, Mingyang; Yang, Jiakuan; Liang, Sha; Hou, Huijie; Wang, Junxiong; Hu, Guang; Li, Zhaoyang; Hu, Jingping; Xiao, Keke; Liu, Bingchuan
Source:
Resources, conservation, and recycling 2021 v.170 pp. 105611
ISSN:
0921-3449
Subject:
volatilization,   etc   ; air; ammonia; ammonium chloride; batteries; slags; sodium; solid wastes; tin;     Show all 9 Subjects
Abstract:
... Tin-containing slag from pyrometallurgical recovery process of spent lead-acid battery is a valuable secondary Sn resource. However, the low content of Sn (~4 wt%) in this slag with complex impurities (Fe, Al, Pb, Zn, and Cu, etc.) makes it challenging for efficient tin separation. In this study, a low-temperature chlorinating process is proposed for tin recovery from the tin-containing slag by us ...
DOI:
10.1016/j.resconrec.2021.105611