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1. Experimental and theoretical studies on the atmospheric degradation of 1, 1, 2, 2, 3, 3, 4-heptafluorocyclopentane

Author:
Chen, Weiwang; He, Jinwei; Jiang, Ye; Zhang, Haijun; Zhou, Xiaomeng
Source:
Atmospheric environment 2019 v.196 pp. 38-43
ISSN:
1352-2310
Subject:
cleaning; cleaning agents,   etc   ; atmospheric chemistry; hydroxyl radicals; models; temperature; toxicity;     Show all 7 Subjects
Abstract:
... Given its excellent cleaning ability, environment amity, low toxicity, etc., 1, 1, 2, 2, 3, 3, 4-heptafluorocyclopentane (F7A) has been recommended as a new generation of cleaning agent with great application potential. In this paper, the atmospheric degradation of F7A initiated by reacting with OH radical is studied both in theory and experiment. The experimental rate constants of F7A with OH are ...
DOI:
10.1016/j.atmosenv.2018.09.057

2. Multi-staged granular beds applied to the filtration of ultrafine particles: An optimization of collector diameters

Author:
Charvet, Augustin; Wingert, Loïc; Bardin-Monnier, Nathalie; Pacault, Stéphanie; Fournier, Frantz; Bemer, Denis; Thomas, Dominique
Source:
Powder technology 2019 v.342 pp. 341-347
ISSN:
0032-5910
Subject:
cleaning,   etc   ; filtration; models; powders; spraying;     Show all 5 Subjects
Abstract:
... Granular beds exhibit interesting performances, in terms of ultrafine particle collection efficiency, hot gas cleaning, low cost and robustness. Nevertheless, some authors highlighted that ultrafine particle deposit is essentially located in the first layers of the granular bed. Thus, only a small depth is useful thereby reducing both the operation time between two uncloggings and the process yiel ...
DOI:
10.1016/j.powtec.2018.10.004

3. Heliostat field cleaning scheduling for Solar Power Tower plants: A heuristic approach

Author:
Ashley, Thomas; Carrizosa, Emilio; Fernández-Cara, Enrique
Source:
Applied energy 2019 v.235 pp. 653-660
ISSN:
0306-2619
Subject:
cleaning,   etc   ; algorithms; climate; energy; solar energy;     Show all 5 Subjects
Abstract:
... Soiling of heliostat surfaces due to local climate has a direct impact on their optical efficiency and therefore a direct impact on the productivity of the Solar Power Tower plant. Cleaning techniques applied are dependent on plant construction and current schedules are normally developed considering heliostat layout patterns, providing sub-optimal results. In this paper, a method to optimise clea ...
DOI:
10.1016/j.apenergy.2018.11.004

4. Measurement of effective filtration area of pleated bag filter for pulse-jet cleaning

Author:
Kim, Jin Sik; Lee, Myong-Hwa
Source:
Powder technology 2019 v.343 pp. 662-670
ISSN:
0032-5910
Subject:
cleaning,   etc   ; bags; dust; filters; filtration; powders;     Show all 6 Subjects
Abstract:
... A pleated filter cartridge is a potential component to reduce the installation space required for a bag house dust collection system. However, the optimal pleating method has not been suggested yet, and it has been dependent upon the manufacturer's know-how and experience. In this study, dimensionless parameter, α, which is the ratio of pleat height to pleat width, was introduced to determine the ...
DOI:
10.1016/j.powtec.2018.11.080

5. Cleaning of Fluid-Infused Surfaces in Microchannels

Author:
Li, Yongjian; Hu, Xiangyu; Liang, Shuaishuai; Li, Jiang; Chen, Haosheng
Source:
Langmuir 2018 v.34 no.42 pp. 12532-12537
ISSN:
1520-5827
Subject:
cleaning,   etc   ; hydrodynamics; surface tension;     Show all 3 Subjects
Abstract:
... When an immiscible fluid is flowing over a fluid-infused surface with transverse grooves in a microchannel, the infused fluid is either left in or cleaned away from the grooves by the flowing fluid. The cleaning status depends on the geometric parameters of the groove and the contact angle of the flowing fluids. The critical width of the grooves for the infused fluid enclosed in or driven out of t ...
DOI:
10.1021/acs.langmuir.8b02237

6. Effect of swirl flow on whey protein fouling and cleaning in a straight duct

Author:
Bouvier, L.; Fargnier, I.; Lalot, S.; Delaplace, G.
Source:
Journal of food engineering 2019 v.242 pp. 115-123
ISSN:
0260-8774
Subject:
cleaning,   etc   ; fouling; heat exchangers; shear stress; temperature; whey protein;     Show all 6 Subjects
Abstract:
... Whey protein fouling is a complex phenomenon involving several mechanisms. Product, surface properties and process parameters interact simultaneously. This experimental work focuses on the effect of a swirl flow on whey protein fouling and cleaning in a straight tube, independently of any other factors. In a holding section after a heating zone composed of a plate heat exchanger, the dry deposit m ...
DOI:
10.1016/j.jfoodeng.2018.08.024

7. Mobile laboratories: An innovative and efficient solution for radiological characterization of sites under or after decommissioning

Author:
Goudeau, V.; Daniel, B.; Dubot, D.
Source:
Journal of environmental radioactivity 2019 v.196 pp. 194-198
ISSN:
0265-931X
Subject:
cleaning,   etc   ; analytical chemistry; infrastructure; monitoring; radioactivity; radionuclides; soil; wastes;     Show all 8 Subjects
Abstract:
... During the operation and the decommissioning of a nuclear site the operator must assure the protection of the workers and the environment. It must furthermore identify and classify the various wastes, while optimizing the associated costs. At all stages of the decommissioning radiological measurements are performed to determine the initial situation, to monitor the demolition and clean-up, and to ...
DOI:
10.1016/j.jenvrad.2017.04.010

8. Cleaning Product Ingredient Safety: What Is the Current State of Availability of Information Regarding Ingredients in Products and Their Function?

Author:
DeLeo, Paul C.; Ciarlo, Michael; Pacelli, Courtney; Greggs, William; Williams, Edward Spencer; Scott, W. Casan; Wang, Zhen; Brooks, Bryan W.
Source:
ACS sustainable chemistry & engineering 2018 v.6 no.2 pp. 2094-2102
ISSN:
2168-0485
Subject:
cleaning; cleaning agents,   etc   ; cleaners; industry; ingredients; inventories; laundry; United States;     Show all 8 Subjects
Abstract:
... In the present study, we aimed to define and report the universe of ingredients used in consumer cleaning products in the United States. To develop exposure estimates associated with the use of these cleaning product ingredients, an inventory was developed using data provided publicly by product formulators. The inventory included compilation of product uses, ingredient names, and ingredient uses ...
DOI:
10.1021/acssuschemeng.7b03510

9. Voluntary Cleanup Programs for Brownfield Sites: A Theoretical Analysis

Author:
Lyon, ThomasP.; Yin, Haitao; Blackman, Allen; Wernstedt, Kris
Source:
Environmental and resource economics 2018 v.70 no.2 pp. 297-322
ISSN:
0924-6460
Subject:
cleaning,   etc   ; risk reduction; theoretical models;     Show all 3 Subjects
Abstract:
... Delays in cleaning up contaminated “brownfield” sites have led many states to adopt voluntary cleanup programs (VCPs), but the incentives they create remain poorly understood. We present the first theoretical model of VCPs, motivating it from a review of their institutional background, and the limited empirical literature on their effects. We show that tort liability alone leads to excessive devel ...
DOI:
10.1007/s10640-017-0121-z

10. A viable approach for commercial VFAs production from sludge: Liquid fermentation in anaerobic dynamic membrane reactor

Author:
Liu, Hongbo; Wang, Ling; Zhang, Xuedong; Fu, Bo; Liu, He; Li, Yajie; Lu, Xiaoyou
Source:
Journal of hazardous materials 2019 v.365 pp. 912-920
ISSN:
0304-3894
Subject:
cleaning,   etc   ; bioavailability; economic analysis; energy; fermenters; liquid state fermentation; liquids; sewage sludge; volatile fatty acids;     Show all 9 Subjects
Abstract:
... A novel strategy of liquid fermentation using anaerobic dynamic membrane reactor (AnDMBR) was proposed to enhance volatile fatty acids (VFAs) production from sewage sludge. Results indicated that liquid sludge fermentation in AnDMBR had the potential in commercial VFAs production. VFAs productivity and concentration as well as substrate conversion rate could reach as high as 7.8 kg VFA−COD/m3 d, 6 ...
DOI:
10.1016/j.jhazmat.2018.11.082

11. Protein aggregation suppressor arginine as an effective mouth cleaning agent

Author:
Ikeda, Keiko; Ejima, Daisuke; Arakawa, Tsutomu; Koyama, A. Hajime
Source:
International journal of biological macromolecules 2019 v.122 pp. 224-227
ISSN:
0141-8130
Subject:
cleaning agents,   etc   ; adsorption; arginine; bacteria; biofilm; buffers; citrates; pH; pneumonia; protein-protein interactions; risk; solubility; tongue;     Show all 13 Subjects
Abstract:
... We have tested here whether or not arginine, a well-known aggregation suppressor, is effective in removing bacterial cells, which may present a potential risk of accidental pneumonia infection in aged individuals, from the oral mucosal membranes. This is based on the ability of arginine to suppress protein-protein interaction and surface adsorption and increase the solubility of organic compounds. ...
DOI:
10.1016/j.ijbiomac.2018.10.158

12. Use of a convolutional neural network for the classification of microbeads in urban wastewater

Author:
Yurtsever, Meral; Yurtsever, Ulaş
Source:
Chemosphere 2019 v.216 pp. 271-280
ISSN:
0045-6535
Subject:
cleaning agents,   etc   ; cosmetics; drugs; industry; microbeads; microplastics; models; pollution; sewer systems; wastewater;     Show all 10 Subjects
Abstract:
... Scientists are on the lookout for a practical model that can serve as a standard for sorting out, identifying, and characterizing microplastics which are common occurrences in water sources and wastewaters. The microbeads (MBs) used in cosmetics and discharged into the sewer systems after use cause substantial microplastics pollution in the receiving waters. Today, the use of plastic microbeads in ...
DOI:
10.1016/j.chemosphere.2018.10.084

13. Generation of low ash fine clean coal powder by autogenous grinding process powder technology

Author:
Sriramoju, S.K.; Rashmi,; Suresh, A.; Dash, P.S.
Source:
Powder technology 2019 v.342 pp. 67-72
ISSN:
0032-5910
Subject:
cleaning,   etc   ; coal; crushing; energy; equipment; grinding; industry; mineral content; minerals; powders; washing;     Show all 11 Subjects
Abstract:
... Crushing and grinding process in mineral processing industry is high energy consuming but it is essential for generating required sized ore with improved liberation, which enhances the process efficiency of physical cleaning of ore. Due to the presence of various minerals in lump of ore, breakage mechanism plays a major role in liberation of different materials, which is solely depends on the type ...
DOI:
10.1016/j.powtec.2018.09.079

14. Reusable Polybenzimidazole Nanofiber Membrane Filter for Highly Breathable PM₂.₅ Dust Proof Mask

Author:
Lee, Sol; Cho, A Ra; Park, Daehoon; Kim, Jae Kyeom; Han, Kyung Seok; Yoon, Ick-Jae; Lee, Min Hyung; Nah, Junghyo
Source:
ACS applied materials & interfaces 2019 v.11 no.3 pp. 2750-2757
ISSN:
1944-8252
Subject:
cleaning,   etc   ; air filters; breathing; density functional theory; durability; dust; humans; nanofibers; particulates; researchers; respiratory system; tissues;     Show all 12 Subjects
Abstract:
... Ultrafine particulate matters (PMs) are an imminent threat to the human respiratory system, as their sizes are comparable to and even smaller than human tissues. To cope with this situation, researchers have developed and commercialized various personal dust proof masks. However, because of the relatively thick filter membrane to guarantee filtering efficiency, a huge pressure drop across the acti ...
DOI:
10.1021/acsami.8b19741

15. Insights into the Role of Poly(vinylpyrrolidone) in the Synthesis of Palladium Nanoparticles and Their Electrocatalytic Properties

Author:
Yin, Yanru; Ma, Ning; Xue, Jing; Wang, Guoqiang; Liu, Shuibo; Li, Hongliang; Guo, Peizhi
Source:
Langmuir 2019 v.35 no.3 pp. 787-795
ISSN:
1520-5827
Subject:
cleaning,   etc   ; adsorption; desorption; electrochemistry; electrodes; ethanol; nanoparticles; palladium; potassium hydroxide; sulfuric acid;     Show all 10 Subjects
Abstract:
... Four types of palladium (Pd) nanoparticles were prepared from the systems containing PdCl₂ or Na₂PdCl₄ with or without the assistance of poly(vinylpyrrolidone) (PVP). Two types of Pd nanoparticles obtained in the absence of PVP were obviously larger than those synthesized with the assistance of PVP. The former large Pd particles showed typical features in cyclic voltammetry in H₂SO₄ solution, wher ...
DOI:
10.1021/acs.langmuir.8b04032

16. Keeping pace with the increasing demand for high quality drug candidates in pharmaceutical research: Development of a new two-step preparative tandem high performance chromatographic system for the purification of antibodies

Author:
Schmitz, Stefan; Schönfeld, Dorian Leo; Freitag, Bernhard; Götzberger-Schad, Claudia; Fischer, Melanie; Linden, Lars
Source:
Journal of chromatography 2019 v.1104 pp. 18-28
ISSN:
1570-0232
Subject:
cleaning,   etc   ; antibodies; drugs; endotoxins; gel chromatography; humans; immunoglobulin G; liquids; nesting; pumps; therapeutics;     Show all 11 Subjects
Abstract:
... In the area of biological drug development, high throughput (HT) technologies are key to identifying the most promising therapeutic candidate in a time-efficient and market-competitive manner. While efficient cloning and expression methods exist, HT downstream processing mainly relies on liquid handling workstations applying miniaturized chromatography columns or resin-based 96-well plates to shor ...
DOI:
10.1016/j.jchromb.2018.11.005

17. Digestion performance and contributions of organic and inorganic fouling in an anaerobic membrane bioreactor treating waste activated sludge

Author:
Hafuka, Akira; Mashiko, Riho; Odashima, Ryuto; Yamamura, Hiroshi; Satoh, Hisashi; Watanabe, Yoshimasa
Source:
Bioresource technology 2019 v.272 pp. 63-69
ISSN:
0960-8524
Subject:
cleaning,   etc   ; digestion; fouling; gas production (biological); membrane bioreactors; methane; microfiltration; sludge;     Show all 8 Subjects
Abstract:
... This study evaluates the performance of an anaerobic membrane bioreactor (AnMBR) digesting waste activated sludge. A digestion reactor equipped with an external hollow fiber microfiltration membrane module was operated in continuous-mode for 248 days. The system demonstrated 56% volatile solids degradation at an organic loading rate of 0.40 g-VS/(L·d) in 15 days of hydraulic retention time. The av ...
DOI:
10.1016/j.biortech.2018.09.147

18. A bio-based environment-friendly membrane with facile preparation process for oil-water separation A Physicochemical and engineering aspects

Author:
Sun, Si; Xiao, Qian-Ru; Zhou, Xuan; Wei, Ying-Ying; Shi, Lin; Jiang, Yong
Source:
Colloids and surfaces 2018 v.559 pp. 18-22
ISSN:
0927-7757
Subject:
cleaning,   etc   ; agarose; coatings; colloids; fabrics; hydrogels; wastewater;     Show all 7 Subjects
Abstract:
... In this study, a novel bio-based environment-friendly membrane for oil-water separation is made via a facile method of coating agarose hydrogel on fabrics. The membrane can separate a range of different oil-water mixtures with >95% separation efficiency, indicating its high oil-water separation ability. Moreover, the membrane can be easily cleaned and maintain its high oil-water separation perform ...
DOI:
10.1016/j.colsurfa.2018.09.038

19. Influence of multiple reuse and resterilization cycles on the performance of a bipolar vessel sealing device (LigaSure) intended for single use

Author:
Kuvaldina, Alexandra; Hayes, Galina; Sumner, Julia; Behling‐Kelly, Erica
Source:
Veterinary surgery 2018 v.47 no.7 pp. 951-957
ISSN:
0161-3499
Subject:
cleaning,   etc   ; cutting; histology; sealants; surgeons; surgery;     Show all 6 Subjects
Abstract:
... OBJECTIVE: To determine the number of use/cleaning/resterilization cycles that can be safely applied to a vessel sealing device intended for single use (LigaSure). STUDY DESIGN: Ex vivo study. SAMPLE POPULATION: LigaSure Small Jaw handsets (n = 6) and LigaSure Impact handsets (n = 6). METHODS: Handsets underwent simulated splenectomy/cleaning/resterilization cycles until failure, defined as leakin ...
DOI:
10.1111/vsu.12948

20. Comparison of three bullet recovery systems

Author:
Werner, Denis; Rhumorbarbe, Damien; Kronseder, Peter; Gallusser, Alain
Source:
Forensic science international 2018 v.290 pp. 251-257
ISSN:
0379-0738
Subject:
cleaning,   etc   ; cotton; fleece; forensic sciences; law enforcement;     Show all 5 Subjects
Abstract:
... Comparing the marks left on questioned bullets to those left on reference bullets is the main aim of a firearm identification expertise. Thus, producing reference bullets with a questioned firearm is an essential step. Different kinds of system have been developed to safely recover bullets fired from questioned firearms. However, the performance of each system and its impact on traces left on the ...
DOI:
10.1016/j.forsciint.2018.07.023