1
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Baigadilov A, Colombano S, Omirbekov S, Cochennec M, Davarzani D, Lion F, Oxarango L, Bodiguel H. Surfactant foam injection for remediation of diesel-contaminated soil: A comprehensive study on the role of co-surfactant in foaming formulation enhancement. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 930:172631. [PMID: 38670385 DOI: 10.1016/j.scitotenv.2024.172631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 04/10/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024]
Abstract
Aqueous foam injection is a promising technique for in-situ remediation of soil and aquifers contaminated by petroleum products. However, the application efficiency is strongly hindered by foam's instability upon contact with hydrocarbons. Addressing this, we propose a new binary surfactant mixture of Sodium Dodecyl Sulfate (SDS) and Cocamidopropyl Hydroxysultaine (CAHS). This study investigates CAHS's role as a co-surfactant in enhancing foam stability against antifoaming diesel oil under static and dynamic conditions. Using a dynamic foam analyzer (DFA-100), we assessed static foam's stability by monitoring decay profiles and bubble growth over time. The results revealed that the highest stability can be reached at a CAHS to SDS ratio of 50:50, increasing the half-life of the foam by 7.7 times. Remarkably, our analyses at bulk and bubble scales also elucidated the mechanisms behind the enhanced foam stability of the proposed binary surfactant mixture in the absence and presence of diesel. Additionally, in a 1D sand column, the SDS-CAHS mixture demonstrated more than twofold improvement of the Resistance Factor, attributed to the better survival of the lamellae due to the reduced rate of their destruction. This formulation also yielded a recovery improvement of >10 % compared to SDS foam. The significant improvements in stability and performance of the SDS-CAHS (50:50) mixture were credited to a robust pseudo-emulsion film formation, creating a higher oil entry barrier. This reinforcement and the surfactant molecules' synergistic interactions at the gas-liquid-oil interface significantly contributed to the overall effectiveness.
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Affiliation(s)
- Adil Baigadilov
- BRGM (French Geological Survey), F-45060 Orléans, France; Univ. Grenoble Alpes, CNRS, Grenoble INP, LRP, Grenoble 38000, France; Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, Grenoble 38000, France.
| | | | - Sagyn Omirbekov
- National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan
| | | | | | - Fabien Lion
- BRGM (French Geological Survey), F-45060 Orléans, France
| | - Laurent Oxarango
- Univ. Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, Grenoble 38000, France
| | - Hugues Bodiguel
- Univ. Grenoble Alpes, CNRS, Grenoble INP, LRP, Grenoble 38000, France
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2
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Zhao Y, Xue C, Ji D, Gong W, Liu Y, Li Y. Microscopic Understanding of Interfacial Performance and Antifoaming Mechanism of REP Type Block Polyether Nonionic Surfactants. Molecules 2024; 29:1816. [PMID: 38675635 PMCID: PMC11054078 DOI: 10.3390/molecules29081816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/04/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
In many practical applications involving surfactants, achieving defoaming without affecting interfacial activity is a challenge. In this study, the antifoaming performance of REP-type block polymer nonionic surfactant C12EOmPOn was determined, and molecular dynamics simulation method was employed to investigate the molecular behaviors of surfactants at a gas/water interface, the detailed arrangement information of the different structural segments of the surfactant molecules and the inter-/intra-interactions between all the structural motifs in the interfacial layer were analyzed systematically, by which the antifoaming mechanisms of the surfactants were revealed. The results show that the EO and PO groups of REP-type polyether molecules are located in the aqueous phase near the interface, and the hydrophobic tails distribute separately, lying almost flat on the gas/water interface. The interaction between the same groups of EOs and POs is significantly stronger than with water. REP block polyethers with high polymerization degrees of EO and PO are more inclined to overlap into dense layers, resulting in the formation of aggregates resembling "oil lenses" spreading on the gas/water interface, which exerts a stronger antifoaming effect. This study provides a smart approach to obtaining efficient antifoaming performance at room temperature without adding other antifoam ingredients.
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Affiliation(s)
| | | | | | | | | | - Ying Li
- Key Lab. of Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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3
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Ju Y, Hua J, Niu H, Chen H. Multibranched Molecule Defoamers Based on Methyl Gallate for Highly Effective Defoaming and Antifoaming. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:12497-12509. [PMID: 37615634 DOI: 10.1021/acs.langmuir.3c01728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
Bubbles or foams appear in many industrial processes, bringing inconvenience; yet, efficient capture or removal of them is still challenging. In this study, we report the synthesis and properties of multibranched molecule defoamers based on methyl gallate derivatives (Mb-GDs), which adopt methyl gallate (M-G) as the parent structure, by incorporating alkyl groups from alkyl isocyanates (A-I) with different chain lengths (C12 and C18) to replace R-OH in the M-G structure and further by linking two Mb-GDs into one Gemini-type multibranched derivative (Gt-Mb-GD) by transesterification to construct a defoamer material with a larger spatial volume. The surface properties and interfacial activity of molecular defoamers in aqueous solutions were studied, and the structure-property relationships of the multibranched gallate molecule defoamers based on Mb-GDs and Gt-Mb-GDs were further investigated by comparing the defoaming and antifoaming performance in four typical surfactant foams and foaming solutions with two kinds of commercial defoamers. The foam experiments indicated that the defoamers with a longer branched chain length (C18) showed more effectiveness in defoaming and antifoaming for four surfactant foams or foaming solutions, even at very low dosages, which were far stronger than the commercial high-carbon alcohol defoamer with a linear structure and comparable to branched silicone-based emulsion-type defoamers. Compared with Mb-GD defoamers, Gt-Mb-GD defoamers with a larger branched structure showed a higher defoaming performance. The study found the great potential of materials with multibranched structures for practical applications as the core components of high-performance defoamers.
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Affiliation(s)
- Yonggan Ju
- College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009 Jiangsu, P. R. China
| | - Jingxian Hua
- College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009 Jiangsu, P. R. China
| | - Hong Niu
- Lanzhou Auxiliary Agent Plant Co. Ltd, Lanzhou New District, 730087 Gansu, P. R. China
| | - Hongling Chen
- College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009 Jiangsu, P. R. China
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4
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Effect of mixed surfactants on foam stabilization: A molecular dynamics simulation. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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5
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Ghasemzadeh H, Mehrpajouh A, Pishvaei M. Compressive Strength of Acrylic Polymer-Stabilized Kaolinite Clay Modified with Different Additives. ACS OMEGA 2022; 7:19204-19215. [PMID: 35721929 PMCID: PMC9202067 DOI: 10.1021/acsomega.2c00236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 03/30/2022] [Indexed: 06/15/2023]
Abstract
Although numerous studies have shown the successful use of acrylic-based polymers as one of the chemical substances to improve soil mechanical behavior, their basic ingredients in commercial products are not revealed due to the manufacturers' confidential policy. Among them, additives including pH control agents, thickeners, antifoams, and wetting agents are widely well-known owing to their enhancement effects on different properties of polymers. However, the effect of additives on the soil-polymer mixture is not completely investigated. Therefore, in this study, some of the frequently used additives in acrylic polymers were selected to investigate the effects of each one on the compressive strength of clayey soil. These additives include xanthan gum, Tylose, and carboxymethyl cellulose (CMC) as thickeners, sodium dodecyl sulfate (SDS), cetyltrimethylammonium bromide (CTAB), and Kenon 10 as wetting agents, an ether-based antifoaming agent, and ammonia solution as a pH control agent. A combination of each additive (between 0 and 5% by weight) and polymethyl methacrylate-co-butyl acrylate (with 5% by weight) was added to kaolinite soil to measure the variation of unconfined compressive strength (UCS) and the stress-strain behavior of the soil-polymer-additive mixture. The results indicated that thickeners significantly affected the unconfined compressive strength up to 248% and increased the ductility of the stabilized samples. Acidic pH of the emulsion led to higher unconfined compressive strength of the stabilized soil up to 2.33 times that with alkaline. It is also demonstrated that the use of a higher amount of anionic wetting agent resulted in higher failure strain and lower unconfined compressive strength.
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Affiliation(s)
- Hasan Ghasemzadeh
- Department
of Civil engineering, K.N. Toosi University
of Technology, No. 1346, Valiasr Street, Mirdamad Intersection, Tehran 19967-15433, Iran
| | - Aida Mehrpajouh
- Hochschule
fùr Technik und Wirtschaft Dresden, Friedrich-List-Platz1, 01069 Dresden, Germany
| | - Malihe Pishvaei
- Department
of Resin and Additives, Institute for Color
Science and Technology, No. 55, Vafamanesh St., Lavizan Exit, Sayad Shirazi North HWY, Tehran 1668836471, Iran
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6
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Challenges in Mitigating Lubricant Foaming. LUBRICANTS 2022. [DOI: 10.3390/lubricants10060108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Lubricant foaming and its mitigation is an active area of research driven by demands from modern machinery that require foam-free lubricant operation over extended periods and under adverse conditions. Tackling lubricant foaming has proven to be challenging due to interdependent foam stabilization mechanisms and a multitude of antifoam inactivation routes. This perspective briefly outlines the key challenges faced by researchers in this field. Overcoming these challenges to create lubricants with superior foaming characteristics requires the development of new lubricant and antifoam chemistry as well as a shift from the existing trial-and-error methods to mechanistic-insight-driven lubricant formulation and antifoam design.
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7
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Fan X, Guan X, Zhang M, Liu Y, Li Y. Aqueous foam synergistically stabilized by the composite of lignin nanoparticles and surfactant. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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8
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Zeng J, Wang W, Lin J, Zhang Y, Li H, Liu J, Yan C, Gu Y, Wei Y. Purification of menthone and menthol from Mentha haplocalyx by suspension particle assisted solvent sublation, neuroprotective effect in vitro and molecular docking of menthol on amyloid-β. J Chromatogr A 2022; 1674:463125. [PMID: 35597196 DOI: 10.1016/j.chroma.2022.463125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 05/02/2022] [Accepted: 05/05/2022] [Indexed: 11/28/2022]
Abstract
Suspension particle assisted solvent sublation was designed for the first time. The volatile monoterpenes in Mentha haplocalyx Briq were extracted using this method from a solution containing plant solid particles as the lower phase of solvent sublation. Under the optimum conditions of the solvent sublation (n-hexane/plant solid particles 20% ethanol-water solution system, pH 4, flotation time 30 min and air flow rate 30 mL/min), the extraction yields were 2.0 × 102 mg/kg, 9.5 × 101 mg/kg and 1.2 × 103 mg/kg for menthone, isomenthone and menthol, respectively. Compared with the traditional methods, the established suspension particle assisted solvent sublation might be an economical and efficient extraction method in some aspects. Through a cellular antioxidant activity experiment, menthol could alleviate H2O2-induced oxidative stress. Molecular docking was applied to simulate the molecular recognition process between amyloid-β and menthol. The affinity energy of menthol was -12.59 kJ/mol, indicating that menthol might have neuroprotective activity and the potential to be an amyloid-β inhibitor.
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Affiliation(s)
- Jiajia Zeng
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 3(rd) Ring North East Road, Chaoyang District, Beijing 100029, PR China
| | - Wenjuan Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 3(rd) Ring North East Road, Chaoyang District, Beijing 100029, PR China
| | - Junjun Lin
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 3(rd) Ring North East Road, Chaoyang District, Beijing 100029, PR China
| | - Yuchi Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 3(rd) Ring North East Road, Chaoyang District, Beijing 100029, PR China
| | - Hao Li
- China Academy of Chinese Medical Sciences, Xiyuan Hospital, Beijing, PR China
| | - Jiangang Liu
- China Academy of Chinese Medical Sciences, Xiyuan Hospital, Beijing, PR China
| | - Chen Yan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 3(rd) Ring North East Road, Chaoyang District, Beijing 100029, PR China
| | - Yanxiang Gu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 3(rd) Ring North East Road, Chaoyang District, Beijing 100029, PR China
| | - Yun Wei
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 3(rd) Ring North East Road, Chaoyang District, Beijing 100029, PR China.
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9
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Dong Q, Li X, Dong J. Synthesis of branched surfactant via ethoxylation of oleic acid derivative and its surface properties. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117747] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Dong Q, Li X, Dong J. Synthesis and properties of ethoxylated vicinal diol nonionic surfactants with double hydrophilic head groups. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.127971] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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11
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Jumlongkul A. Low-Cost Air Purifier Prototype Using a Ventilating Fan and Pump Against Haze Pollution. AEROSOL SCIENCE AND ENGINEERING 2022; 6:391-399. [PMCID: PMC9391203 DOI: 10.1007/s41810-022-00152-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 06/01/2022] [Accepted: 07/11/2022] [Indexed: 08/30/2023]
Abstract
This study aimed to focus on the design and development of low-cost do-it-yourself (DIY) air purifiers, using a ventilating fan, air pump, water pump, and an ultrasonic generator that can be used during the haze pollution. Six types of household air purifiers were fabricated. The amount of particulate matter (PM) and carbon dioxide (CO2) levels were recorded at 0, 10, 20, 30, and 60 min (min), then, repeated 3 times. After 10 min of the 3rd experiment of each study, the last measurement of air pollution would be recorded. The results showed at 60 min, the high-efficiency particulate air (HEPA) filter and electrostatic fiber was the best technique regarding reduction of PM and CO2 levels. The highest PM reduction rate had occurred at 30 min using an air pump procedure (99.330 to 100%). The CO2 levels of all experiments had fluctuated at different times. After 10 min of a closed machine, PM levels of all air purifier systems were decreased, except HEPA filter and electrostatic fiber types. In conclusion, the best method for reducing particulate matter and cost without taking humidity into account is an air pump technique, whereas the HEPA filter and electrostatic fiber method is the best choice for lowering PM levels without increasing humidity and vapor production.
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Affiliation(s)
- Arnon Jumlongkul
- School of Medicine, Mae Fah Luang University, Chiang Rai, Thailand
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12
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Angeline PD, Panda RC, Saravanathamizhan R. Synthesis and characterization of fat-liquor from waste tallow. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2021. [DOI: 10.1515/ijcre-2021-0209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The fat-liquoring is an important step in leather making before dying to improve the glossiness, appearance, physical and chemical qualities of the leather. Synthetic sulphonated or sulphited oils are generally used to fill fibrous leather & to give it soft, elastic and loose characteristics. Natural fat-liquors (vegetable and animal-based) and synthetic fat-liquors are the two types of emulsions. The emulsion’s charge can be anionic, cationic, or nonionic. In this study, fat-liquor has been made from a bio-waste, namely tallow, which is obtained from a slaughterhouse as a byproduct of the animal hides and skin processing for leather. Triglycerides, a combination of oleic, stearic, and palmitic fatty acids, and glycerol make up the majority of this animal fat. Fat-liquor is made through a series of three reactions, namely, amidation, esterification, and sulphitation. Amidation helps to increase the hydroxyl groups. To react with fat, alkanol amine with a wide emulsifying characteristic isutilised. Anhydrides derived from di-carboxylic acids were then esterified with amidated fat in the next phase. By altering the process recipe, the stability of the emulsion product has been examined, and required raw materials are optimized. Finally, aqueous hydrolyzed sodium metabisulphite is used to sulphite the product, yielding bisulphite and hydroxide ions. The saponification and acid values are computed. The end product has a distinct advantage (anti-foaming & fire-retardant) over traditional fat-liquoring techniques. Material balance is performed once the process flow sheet was created. The process has been scaled up with the help of a preliminary reactor design. The degree of fat-liquoring and the process’ performance are revealed by FTIR spectrum. NMR was used to determine the final product’s structure.
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Affiliation(s)
- Preethi D. Angeline
- Department of Chemical Engineering , Alagappa College of Technology, Anna University , Sardar Patel Road, Guindy , Chennai 600025 , India
| | - Rames C. Panda
- Department of Chemical Engineering , CSIR-CLRI , Sardar Patel Road, Adyar , Chennai 20 , India
| | - Ramanujam Saravanathamizhan
- Department of Chemical Engineering , Alagappa College of Technology, Anna University , Sardar Patel Road, Guindy , Chennai 600025 , India
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13
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Hegner KI, Wong WSY, Vollmer D. Ultrafast Bubble Bursting by Superamphiphobic Coatings. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2101855. [PMID: 34365676 DOI: 10.1002/adma.202101855] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/12/2021] [Indexed: 05/18/2023]
Abstract
Controlling bubble motion or passively bursting bubbles using solid interfaces is advantageous in numerous industrial applications including flotation, catalysis, electrochemical processes, and microfluidics. Current research has explored the formation, dissolution, pinning, and rupturing of bubbles on different surfaces. However, the ability to tune and control the rate of bubble bursting is not yet achieved. Scaling down surface-induced bubble bursting to just a few milliseconds is important for any application. In this work, the hierarchical structure of superamphiphobic surfaces is tuned in order to rapidly rupture contacting bubbles. Surfaces prepared using liquid flame spray show ultrafast bubble bursting (down to 2 ms) and superior durability. The coatings demonstrate excellent mechanical and chemical stability even in the presence of surface-active species. Air from the ruptured bubble is absorbed into the aerophilic Cassie-state. Long-term applicability is demonstrated by preventing the accumulation of air in the plastron via a connection of the plastron to the environment. The times recorded for bubble rupture and complete reorganization of air are reduced by approximately a factor of 3 compared to previously reported values. The concept is utilized to passively control surfactant-rich foam in froth flotation. Material collection efficiency increased by more than 60 times compared to controls.
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Affiliation(s)
- Katharina I Hegner
- Physics at Interfaces, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - William S Y Wong
- Physics at Interfaces, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Doris Vollmer
- Physics at Interfaces, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
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14
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Ng ELS, Lau KK, Partoon B, Lim SF, Chin SY. Selection Criteria for Antifoams Used in the Acid Gas Sweetening Process. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c02269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- E. L. S. Ng
- CO2 Research Center (CO2RES), Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, 32610 Perak Malaysia
| | - K. K. Lau
- CO2 Research Center (CO2RES), Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, 32610 Perak Malaysia
| | - B. Partoon
- Department of Biological and Chemical Engineering, Aarhus University, Universitetsbyen 36, 8000 Aarhus C, Denmark
| | - S. F. Lim
- Faculty of Engineering, Universiti Malaysia Sarawak, Kota Samarahan, 94300 Sarawak Malaysia
| | - S. Y. Chin
- Department of Chemical Engineering, College of Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Kuantan, Pahang Darul Makmur, Malaysia
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15
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Coffman J, Bibbo K, Brower M, Forbes R, Guros N, Horowski B, Lu R, Mahajan R, Patil U, Rose S, Shultz J. The design basis for the integrated and continuous biomanufacturing framework. Biotechnol Bioeng 2021; 118:3323-3333. [PMID: 33522595 PMCID: PMC8453788 DOI: 10.1002/bit.27697] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 12/31/2020] [Accepted: 01/12/2021] [Indexed: 01/16/2023]
Abstract
An 8 ton per year manufacturing facility is described based on the framework for integrated and continuous bioprocessing (ICB) common to all known biopharmaceutical implementations. While the output of this plant rivals some of the largest fed-batch plants in the world, the equipment inside the plant is relatively small: the plant consists of four 2000 L single-use bioreactors and has a maximum flow rate of 13 L/min. The equipment and facility for the ICB framework is described in sufficient detail to allow biopharmaceutical companies, vendors, contract manufacturers to build or buy their own systems. The design will allow the creation of a global ICB ecosystem that will transform biopharmaceutical manufacturing. The design is fully backward compatible with legacy fed-batch processes. A clinical production scale is described that can produce smaller batch sizes with the same equipment as that used at the commercial scale. The design described allows the production of as little as 10 g to nearly 35 kg of drug substance per day.
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Affiliation(s)
- Jon Coffman
- Biopharmaceutical DevelopmentR&D, AstraZenecaGaithersburgMarylandUSA
| | | | | | | | - Nicholas Guros
- Biopharmaceutical DevelopmentR&D, AstraZenecaGaithersburgMarylandUSA
| | | | - Rick Lu
- Operations Management, Supply BiologicsAstraZenecaGaithersburgMarylandUSA
| | - Rajiv Mahajan
- Operations Management, Supply BiologicsAstraZenecaGaithersburgMarylandUSA
| | - Ujwal Patil
- Biopharmaceutical DevelopmentR&D, AstraZenecaGaithersburgMarylandUSA
| | - Steven Rose
- Biopharmaceutical DevelopmentR&D, AstraZenecaGaithersburgMarylandUSA
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16
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Vishal B. Foaming and rheological properties of aqueous solutions: an interfacial study. REV CHEM ENG 2021. [DOI: 10.1515/revce-2020-0060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Although aqueous foam is composed of simple fluids, air and water, it shows a complex rheological behavior. It exhibits solid-like behavior at low shear and fluid-like behavior at high shear rate. Therefore, understanding such behavior is important for many industrial applications in foods, pharmaceuticals, and cosmetics. Additionally, air–water interface of bubble surface plays an important role in the stabilizing mechanism of foams. Therefore, the rheological properties associated with the aqueous foam highly depend on its interfacial properties. In this review, a systematic study of aqueous foam are presented primarily from rheology point of view. Firstly, foaming agents, surfactants and particles are described; then foam structure was explained, followed by change in structure under applied shear. Finally, foam rheology was linked to interfacial rheology for the interface containing particles whose surface properties were altered by surfactants.
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Affiliation(s)
- Badri Vishal
- Department of Chemistry and Biochemistry , University of Hull , Hull , HU6 7RX , UK
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17
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Gong Z, Yang G, Che C, Liu J, Si M, He Q. Foaming of rhamnolipids fermentation: impact factors and fermentation strategies. Microb Cell Fact 2021; 20:77. [PMID: 33781264 PMCID: PMC8008553 DOI: 10.1186/s12934-021-01516-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 01/11/2021] [Indexed: 11/25/2022] Open
Abstract
Rhamnolipids have recently attracted considerable attentions because of their excellent biosurfactant performance and potential applications in agriculture, environment, biomedicine, etc., but severe foaming causes the high cost of production, restraining their commercial production and applications. To reduce or eliminate the foaming, numerous explorations have been focused on foaming factors and fermentation strategies, but a systematic summary and discussion are still lacking. Additionally, although these studies have not broken through the bottleneck of foaming, they are conducive to understanding the foaming mechanism and developing more effective rhamnolipids production strategies. Therefore, this review focuses on the effects of fermentation components and control conditions on foaming behavior and fermentation strategies responded to the severe foaming in rhamnolipids fermentation and systematically summarizes 6 impact factors and 9 fermentation strategies. Furthermore, the potentialities of 9 fermentation strategies for large-scale production are discussed and some further strategies are suggested. We hope this review can further facilitate the understanding of foaming factors and fermentation strategies as well as conducive to developing the more effective large-scale production strategies to accelerate the commercial production process of rhamnolipids.![]()
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Affiliation(s)
- Zhijin Gong
- School of Life Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Ge Yang
- School of Life Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Chengchuan Che
- School of Life Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Jinfeng Liu
- School of Life Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Meiru Si
- School of Life Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China
| | - Qiuhong He
- School of Life Sciences, Qufu Normal University, Qufu, Shandong Province, 273165, China.
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Li G, He Y, Han W, Yu Y, Zhu L, Si T, Sun Y. An improved solvent evaporation method to produce poly (lactic acid) microspheres via foam-transfer. Int J Biol Macromol 2021; 172:114-123. [PMID: 33444658 DOI: 10.1016/j.ijbiomac.2021.01.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 12/28/2020] [Accepted: 01/06/2021] [Indexed: 11/26/2022]
Abstract
The aim of this work was to study an improved solvent evaporation method to prepare poly (lactic acid) (PLA) microspheres via foam-transfer. Since the foaming process and its transfer were critical to the improved method, they have been studied. Additionally, the delivery capability of foams was studied as a function of the oil/water ratio, the stirring rate, the concentration of polyvinyl alcohol (PVA) and ethanol (EtOH) in the aqueous phase (ωPVA, ωEtOH). It was found that foaming varied during the preparation process and it influenced the properties of PLA microspheres. When the oil/water ratio (w/w) ≥ 3:10, stirring rate ≥ 600 r/min, ωPVA ≥ 1 wt%, and ωEtOH = 0 wt%, solvent evaporation was able to produce enough foams for foam-transfer, which helped to deliver more than 89 wt% PLA microspheres to the receiving vessel. However, ωPVA ≤ 0.3 wt% and ωEtOH = 20 wt% were unfavorable for maintaining the spherical shape of PLA microspheres and caused the aggregation. The methodology was further used to prepare azoxystrobin-loaded PLA microspheres successfully with a high encapsulation efficiency of 86.54%. This work is meaningful since it enables an efficient and continuous route to prepare functional biodegradable polymer microspheres.
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Affiliation(s)
- Guiying Li
- School of Chemical Engineering, Kunming University of Science and Technology, Chenggong Campus, Kunming, Yunnan 650504, China
| | - Yanping He
- School of Chemical Engineering, Kunming University of Science and Technology, Chenggong Campus, Kunming, Yunnan 650504, China.
| | - Wanqing Han
- School of Chemical Engineering, Kunming University of Science and Technology, Chenggong Campus, Kunming, Yunnan 650504, China
| | - Yang Yu
- School of Chemical Engineering, Kunming University of Science and Technology, Chenggong Campus, Kunming, Yunnan 650504, China
| | - Linhua Zhu
- School of Chemical Engineering, Kunming University of Science and Technology, Chenggong Campus, Kunming, Yunnan 650504, China
| | - Tian Si
- School of Chemical Engineering, Kunming University of Science and Technology, Chenggong Campus, Kunming, Yunnan 650504, China
| | - Yanlin Sun
- School of Chemical Engineering, Kunming University of Science and Technology, Chenggong Campus, Kunming, Yunnan 650504, China
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19
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Chen S, Leung FKC, Stuart MCA, Wang C, Feringa BL. Dynamic Assemblies of Molecular Motor Amphiphiles Control Macroscopic Foam Properties. J Am Chem Soc 2020; 142:10163-10172. [PMID: 32379449 PMCID: PMC7273467 DOI: 10.1021/jacs.0c03153] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Indexed: 11/30/2022]
Abstract
Stimuli-responsive supramolecular assemblies controlling macroscopic transformations with high structural fluidity, i.e., foam properties, have attractive prospects for applications in soft materials ranging from biomedical systems to industrial processes, e.g., textile coloring. However, identifying the key processes for the amplification of molecular motion to a macroscopic level response is of fundamental importance for exerting the full potential of macroscopic structural transformations by external stimuli. Herein, we demonstrate the control of dynamic supramolecular assemblies in aqueous media and as a consequence their macroscopic foam properties, e.g., foamability and foam stability, by large geometrical transformations of dual light/heat stimuli-responsive molecular motor amphiphiles. Detailed insight into the reversible photoisomerization and thermal helix inversion at the molecular level, supramolecular assembly transformations at the microscopic level, and the stimuli-responsive foam properties at the macroscopic level, as determined by UV-vis absorption and NMR spectroscopies, electron microscopy, and foamability and in situ surface tension measurements, is presented. By selective use of external stimuli, e.g., light or heat, multiple states and properties of macroscopic foams can be controlled with very dilute aqueous solutions of the motor amphiphiles (0.2 weight%), demonstrating the potential of multiple stimuli-responsive supramolecular systems based on an identical molecular amphiphile and providing opportunities for future soft materials.
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Affiliation(s)
- Shaoyu Chen
- Center
for System Chemistry, Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
- Key
Laboratory of Eco-Textile, Ministry of Education, College of Textiles
Science and Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, People’s
Republic of China
| | - Franco King-Chi Leung
- Center
for System Chemistry, Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
| | - Marc C. A. Stuart
- Center
for System Chemistry, Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
| | - Chaoxia Wang
- Key
Laboratory of Eco-Textile, Ministry of Education, College of Textiles
Science and Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, People’s
Republic of China
| | - Ben L. Feringa
- Center
for System Chemistry, Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
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Chandran Suja V, Kar A, Cates W, Remmert S, Fuller G. Foam stability in filtered lubricants containing antifoams. J Colloid Interface Sci 2020; 567:1-9. [DOI: 10.1016/j.jcis.2020.01.103] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/17/2020] [Accepted: 01/26/2020] [Indexed: 12/23/2022]
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St-Pierre Lemieux G, Groleau D, Proulx P. Introduction on Foam and its Impact in Bioreactors. CANADIAN JOURNAL OF BIOTECHNOLOGY 2019. [DOI: 10.24870/cjb.2019-000131] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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22
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Qi N, Chen Z, Zhao H, Wang Q, Chen H, Yuan H, Li Y. Predicting and Controlling the Effect of Solubilized Flavor Oil on Foam Properties of Surfactant through Study of the Adsorption Activity and Configuration. J SURFACTANTS DETERG 2019. [DOI: 10.1002/jsde.12364] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Na Qi
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical EngineeringShandong University, 27 South Road of ShanDa, Jinan Shandong 250100 China
| | - Ziyun Chen
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical EngineeringShandong University, 27 South Road of ShanDa, Jinan Shandong 250100 China
| | - Hui Zhao
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical EngineeringShandong University, 27 South Road of ShanDa, Jinan Shandong 250100 China
| | - Qiaozhi Wang
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical EngineeringShandong University, 27 South Road of ShanDa, Jinan Shandong 250100 China
| | - Heng Chen
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical EngineeringShandong University, 27 South Road of ShanDa, Jinan Shandong 250100 China
| | - Hao Yuan
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical EngineeringShandong University, 27 South Road of ShanDa, Jinan Shandong 250100 China
| | - Ying Li
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical EngineeringShandong University, 27 South Road of ShanDa, Jinan Shandong 250100 China
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Chen S, Fei L, Ge F, Wang C. Photoresponsive aqueous foams with controllable stability from nonionic azobenzene surfactants in multiple-component systems. SOFT MATTER 2019; 15:8313-8319. [PMID: 31565724 DOI: 10.1039/c9sm01379b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The controllability of foam stability is a vital feature that allows for practical applications of foam systems. Light, as an external stimulus, offers unique opportunities to tune the foam stability in a non-invasive manner with high spatiotemporal precision. However, most of the reported photoresposive foams were generated from ionic type surfactants, limiting their applications in industrial complex systems with multiple components. Herein, we design and synthesize a series of nonionic azobenzene surfactants with different polyoxyethylene glycol (EO) chain lengths (BEO-n-Azo, n, referring to the EO chain length, is 14, 19 and 23, respectively) to prepare photoresponsive foams. Detailed insights into the effects of EO chain length on photoisomerization properties, surface tension, as well as foamability and controllable stability of photoresponsive foams are presented. The results demonstrate that photoresposive foams are generated not only from single-component solutions of BEO-n-Azo, but also from multiple-component complex systems doped with BEO-n-Azo, providing a promising strategy to broaden applications of photoresponsive foams in industrial processes.
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Affiliation(s)
- Shaoyu Chen
- College of Textiles and Clothing, Key Laboratory of Eco-Textile, Ministry of Education Jiangnan University, Wuxi, 214122, People's Republic of China.
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24
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Relating the structural, air-water interfacial and foaming properties of wheat (Triticum aestivum L.) gliadin and maize (Zea mays L.) zein based nanoparticle suspensions. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.01.071] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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25
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Scheibe AS, Leal TW, Brandão HL, Valle JAB, de Souza SMAGU, de Souza AAU. Characterization of the liquid fractions from textile sludge pyrolysis and their application as defoamers. CAN J CHEM ENG 2018. [DOI: 10.1002/cjce.23219] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ana Silvia Scheibe
- Department of Chemical Engineering and Food Engineering; Federal University of Santa Catarina; Florianópolis SC 88040-900 Brazil
| | - Tarcísio Wolff Leal
- Department of Chemical Engineering and Food Engineering; Federal University of Santa Catarina; Florianópolis SC 88040-900 Brazil
| | - Heloísa Lima Brandão
- Department of Chemical Engineering and Food Engineering; Federal University of Santa Catarina; Florianópolis SC 88040-900 Brazil
| | - José Alexandre Borges Valle
- Department of Chemical Engineering and Food Engineering; Federal University of Santa Catarina; Florianópolis SC 88040-900 Brazil
| | | | - Antônio Augusto Ulson de Souza
- Department of Chemical Engineering and Food Engineering; Federal University of Santa Catarina; Florianópolis SC 88040-900 Brazil
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26
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Novel mechanical foam breaker based on self-oscillation for promoting the application of foam drilling technology. Chem Eng Sci 2018. [DOI: 10.1016/j.ces.2018.05.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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27
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Góral I, Jurek I, Wojciechowski K. How Does the Surface Activity of Soapwort (Saponaria officinalisL.) Extracts Depend on the Plant Organ? J SURFACTANTS DETERG 2018. [DOI: 10.1002/jsde.12198] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Ilona Góral
- SaponLabs Ltd., Noakowskiego 3; 00-664 Warsaw Poland
- Faculty of Chemistry; Warsaw University of Technology, Noakowskiego 3; 00-664 Warsaw Poland
| | - Ilona Jurek
- Faculty of Chemistry; Warsaw University of Technology, Noakowskiego 3; 00-664 Warsaw Poland
| | - Kamil Wojciechowski
- SaponLabs Ltd., Noakowskiego 3; 00-664 Warsaw Poland
- Faculty of Chemistry; Warsaw University of Technology, Noakowskiego 3; 00-664 Warsaw Poland
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28
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Liquid foam templating - A route to tailor-made polymer foams. Adv Colloid Interface Sci 2018; 256:276-290. [PMID: 29728156 DOI: 10.1016/j.cis.2018.03.010] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 03/24/2018] [Accepted: 03/25/2018] [Indexed: 12/11/2022]
Abstract
Solid foams with pore sizes between a few micrometres and a few millimetres are heavily exploited in a wide range of established and emerging applications. While the optimisation of foam applications requires a fine control over their structural properties (pore size distribution, pore opening, foam density, …), the great complexity of most foaming processes still defies a sound scientific understanding and therefore explicit control and prediction of these parameters. We therefore need to improve our understanding of existing processes and also develop new fabrication routes which we understand and which we can exploit to tailor-make new porous materials. One of these new routes is liquid templating in general and liquid foam templating in particular, to which this review article is dedicated. While all solid foams are generated from an initially liquid(-like) state, the particular notion of liquid foam templating implies the specific condition that the liquid foam has time to find its "equilibrium structure" before it is solidified. In other words, the characteristic time scales of the liquid foam's stability and its solidification are well separated, allowing to build on the vast know-how on liquid foams established over the last 20 years. The dispersed phase of the liquid foam determines the final pore size and pore size distribution, while the continuous phase contains the precursors of the desired porous scaffold. We review here the three key challenges which need to be addressed by this approach: (1) the control of the structure of the liquid template, (2) the matching of the time scales between the stability of the liquid template and solidification, and (3) the preservation of the structure of the template throughout the process. Focusing on the field of polymer foams, this review gives an overview of recent research on the properties of liquid foam templates and summarises a key set of studies in the emerging field of liquid foam templating. It finishes with an outlook on future developments. Occasional references to non-polymeric foams are given if the analogy provides specific insight into a physical phenomenon.
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29
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Qi N, Sun H, Zhao H, Li Y. Achieving foaming control smartly: pre-solubilized flavor oil serves as an in situ homogeneous defoamer. SOFT MATTER 2018; 14:2059-2067. [PMID: 29480304 DOI: 10.1039/c7sm02266b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In the wide application of aqueous foam, creating abundant foam and processing appropriate foaming control are both essential, depending upon the actual situation; the latter process is not only harder to achieve, but also more complicated to comprehensively understand on the molecular level. In this paper, a type of natural flavor oil, carvone, was solubilized in a micelle solution of sodium dodecyl sulfate (SDS) to study the effect on the foaming properties. The foamability and foam stability of the swollen micelle solutions were experimentally characterized, and the molecular behavior of the surfactant and oil molecules before, during and after the foaming process were investigated. It was found that the solubilized carvone co-adsorbed with SDS at the gas/water interface and caused a prominent effect on the foam film stability in several approaches, thereby making the flavor oil a possible foam controller that would not inhibit foam formation, but could eliminate foam efficiently once foam was undesired. Interestingly, it was found that the release of flavor in the foaming process was promoted. Detailed discussion of the interfacial behavior of carvone and the effect on the foaming properties of surfactants in different stages of foam may provide a theoretical foundation for exploring green and smart approaches in achieving foaming control.
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Affiliation(s)
- Na Qi
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry, Shandong University, 27 South Road of ShanDa, Jinan, Shandong 250100, P. R. China.
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30
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Hill C, Eastoe J. Foams: From nature to industry. Adv Colloid Interface Sci 2017; 247:496-513. [PMID: 28535903 DOI: 10.1016/j.cis.2017.05.013] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 03/23/2017] [Accepted: 05/10/2017] [Indexed: 11/19/2022]
Abstract
This article discusses different natural and man-made foams, with particular emphasis on the different modes of formation and stability. Natural foams, such as those produced on the sea or by numerous creatures for nests, are generally stabilised by dissolved organic carbon (DOC) molecules or proteins. In addition to this, foam nests are stabilised by multifunctional mixtures of surfactants and proteins called ranaspumins, which act together to give the required physical and biochemical stability. With regards to industrial foams, the article focuses on how various features of foams are exploited for different industrial applications. Stability of foams will be discussed, with the main focus on how the chemical nature and structure of surfactants, proteins and particles act together to produce long-lived stable foams. Additionally, foam destabilisation is considered, from the perspective of elucidation of the mechanisms of instability determined spectroscopically or by scattering methods.
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Affiliation(s)
- Christopher Hill
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Julian Eastoe
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom.
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31
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Böttcher S, Eichhorn M, Drusch S. Factors Affecting Foamed Emulsions Prepared with an Extract from Quillaja saponaria Molina: Oil Droplet Size, pH and Presence of Beta-Lactoglobulin. FOOD BIOPHYS 2017. [DOI: 10.1007/s11483-017-9481-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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32
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Wang C, Sun C, Ding F, Yi Y. Study on the Synthesis of Fluoroalkyl and Polyether Co-modified Polysiloxane and Appraisal of Its Foam-Breaking and -Inhibiting Performance. J CHIN CHEM SOC-TAIP 2017. [DOI: 10.1002/jccs.201600878] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chenchen Wang
- College of Chemical Engineering; Beijing Institute of Petrochemical Technology; Beijing 102617 China
- Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology; Beijing 102617 China
| | - Chao Sun
- College of Chemical Engineering; Beijing Institute of Petrochemical Technology; Beijing 102617 China
- Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology; Beijing 102617 China
| | - Fuchen Ding
- College of Chemical Engineering; Beijing Institute of Petrochemical Technology; Beijing 102617 China
- Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology; Beijing 102617 China
| | - Yufeng Yi
- College of Chemical Engineering; Beijing Institute of Petrochemical Technology; Beijing 102617 China
- Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology; Beijing 102617 China
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33
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Chen S, Zhang Y, Chen K, Yin Y, Wang C. Insight into a Fast-Phototuning Azobenzene Switch for Sustainably Tailoring the Foam Stability. ACS APPLIED MATERIALS & INTERFACES 2017; 9:13778-13784. [PMID: 28350435 DOI: 10.1021/acsami.7b02024] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A photoresponsive surfactant of 4-octoxy-4'-[(trimethylamino)ethoxy]azobenzene (OTAEAzo) has been synthesized for developing a fast-phototuning foam switch based on its high sensitivity, reversibility, and fatigue resistance of the photoisomerization capability. Ultraviolet (UV)-light irradiation for 1 s enabled conversion from the trans isomer to the cis configuration, while exposure to visible (Vis)-light for 3 min induced a cis-to-trans transformation, which maintains an excellent cycling stability for 20 cycles of photoisomerization. The photoisomerization speed depended on the concentration of OTAEAzo, and a lower concentration facilitated a faster photoisomerization process. Because of the low critical micelle concentration (CMC), OTAEAzo with a small dosage of 0.2 g·L-1 showed foamability, which accelerated the photoisomerization speed, enabling it to become a highly efficient switch. The surface activities of trans-OTAEAzo presented distinct differences from those of cis-OTAEAzo, resulting in the foam stabilization effects of trans-OTAEAzo (t1/2 = 2.58 min) and the destabilization effects of cis-OTAEAzo (t1/2 = 0.38 min). Moreover, the foam properties varied slightly in the phototuning cycles. OTAEAzo with low CMC presents high sensitivity and reversible photoisomerization capability, providing an environmental and sustainable approach for tailoring the foam stability.
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Affiliation(s)
- Shaoyu Chen
- Key Laboratory of Eco-Textile, Ministry of Education, College of Textile & Clothing, Jiangnan University , 1800 Lihu Road, Wuxi 214122, People's Republic of China
| | - Yanyan Zhang
- Key Laboratory of Eco-Textile, Ministry of Education, College of Textile & Clothing, Jiangnan University , 1800 Lihu Road, Wuxi 214122, People's Republic of China
| | - Kunlin Chen
- Key Laboratory of Eco-Textile, Ministry of Education, College of Textile & Clothing, Jiangnan University , 1800 Lihu Road, Wuxi 214122, People's Republic of China
| | - Yunjie Yin
- Key Laboratory of Eco-Textile, Ministry of Education, College of Textile & Clothing, Jiangnan University , 1800 Lihu Road, Wuxi 214122, People's Republic of China
| | - Chaoxia Wang
- Key Laboratory of Eco-Textile, Ministry of Education, College of Textile & Clothing, Jiangnan University , 1800 Lihu Road, Wuxi 214122, People's Republic of China
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Wang J, Nguyen AV, Farrokhpay S. A critical review of the growth, drainage and collapse of foams. Adv Colloid Interface Sci 2016; 228:55-70. [PMID: 26718078 DOI: 10.1016/j.cis.2015.11.009] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 11/23/2015] [Accepted: 11/25/2015] [Indexed: 10/22/2022]
Abstract
This review focuses on the current knowledge regarding (i) the mechanisms governing foamability and foam stability, and (ii) models for the foam column kinetics. Although different length scales of foam structure, such as air-water interface and liquid film, have been studied to elucidate the mechanisms that control the foamability and foam stability, many questions remain unanswered. It is due to the collective effects of different mechanisms involved and the complicated structures of foam sub-structures such as foam films, Plateau borders and nodes, and foam networks like soft porous materials. The current knowledge of the effects of solid particles on liquid film stability and foam drainage is also discussed to highlight gaps in our present level of understanding foam systems with solid particles. We also critically review and summarize the models that describe macroscopic foam behaviors, such as equilibrium foam height, foam growth and collapse, within the context of the mechanisms involved.
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37
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Huang J, Cheng F, Binks BP, Yang H. pH-Responsive Gas-Water-Solid Interface for Multiphase Catalysis. J Am Chem Soc 2015; 137:15015-25. [PMID: 26524337 DOI: 10.1021/jacs.5b09790] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Despite their wide utility in laboratory synthesis and industrial fabrication, gas-water-solid multiphase catalysis reactions often suffer from low reaction efficiency because of the low solubility of gases in water. Using a surface-modification protocol, interface-active silica nanoparticles were synthesized. Such nanoparticles can assemble at the gas-water interface, stabilizing micrometer-sized gas bubbles in water, and disassemble by tuning of the aqueous phase pH. The ability to stabilize gas microbubbles can be finely tuned through variation of the surface-modification protocol. As proof of this concept, Pd and Au were deposited on these silica nanoparticles, leading to interface-active catalysts for aqueous hydrogenation and oxidation, respectively. With such catalysts, conventional gas-water-solid multiphase reactions can be transformed to H2 or O2 microbubble reaction systems. The resultant microbubble reaction systems exhibit significant catalysis efficiency enhancement effects compared with conventional multiphase reactions. The significant improvement is attributed to the pronounced increase in reaction interface area that allows for the direct contact of gas, water, and solid phases. At the end of reaction, the microbubbles can be removed from the reaction systems through changing the pH, allowing product separation and catalyst recycling. Interestingly, the alcohol oxidation activation energy for the microbubble systems is much lower than that for the conventional multiphase reaction, also indicating that the developed microbubble system may be a valuable platform to design innovative multiphase catalysis reactions.
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Affiliation(s)
| | | | - Bernard P Binks
- Surfactant & Colloid Group, Department of Chemistry, University of Hull , Hull HU6 7RX, United Kingdom
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38
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Kougias PG, Boe K, Einarsdottir ES, Angelidaki I. Counteracting foaming caused by lipids or proteins in biogas reactors using rapeseed oil or oleic acid as antifoaming agents. WATER RESEARCH 2015; 79:119-27. [PMID: 25978353 DOI: 10.1016/j.watres.2015.04.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 04/13/2015] [Accepted: 04/20/2015] [Indexed: 05/10/2023]
Abstract
Foaming is one of the major operational problems in biogas plants, and dealing with foaming incidents is still based on empirical practices. Various types of antifoams are used arbitrarily to combat foaming in biogas plants, but without any scientific support this action can lead to serious deterioration of the methanogenic process. Many commercial antifoams are derivatives of fatty acids or oils. However, it is well known that lipids can induce foaming in manure based biogas plants. This study aimed to elucidate the effect of rapeseed oil and oleic acid on foam reduction and process performance in biogas reactors fed with protein or lipid rich substrates. The results showed that both antifoams efficiently suppressed foaming. Moreover rapeseed oil resulted in stimulation of the biogas production. Finally, it was reckoned that the chemical structure of lipids, and more specifically their carboxylic ends, is responsible for their foam promoting or foam counteracting behaviour. Thus, it was concluded that the fatty acids and oils could suppress foaming, while salt of fatty acids could generate foam.
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Affiliation(s)
- P G Kougias
- Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby, DK-2800, Denmark
| | - K Boe
- Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby, DK-2800, Denmark
| | - E S Einarsdottir
- Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby, DK-2800, Denmark
| | - I Angelidaki
- Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby, DK-2800, Denmark.
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Franco TS, Ellendersen LN, Fattori D, Granato D, Masson ML. Influence of the Addition of Ovalbumin and Emulsifier on the Physical Properties and Stability of Yacon (Smallanthus sonchifolius) Juice Foams Prepared for Foam Mat Drying Process. FOOD BIOPROCESS TECH 2015. [DOI: 10.1007/s11947-015-1553-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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How antifoams act: a microgravity study. NPJ Microgravity 2015; 1:15004. [PMID: 28725710 PMCID: PMC5515500 DOI: 10.1038/npjmgrav.2015.4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Revised: 04/16/2015] [Accepted: 04/20/2015] [Indexed: 11/11/2022] Open
Abstract
Antifoams are widely used to control or to avoid foam production. In order to work, antifoam particles need to break foam films efficiently, which many antifoams do very well. However, once they have broken a film, to continue to be effective they need to be transported to the next film. We show, for the first time, that buoyancy has an important part in the transport of the antifoam particles. In microgravity, where buoyancy and gravitational drainage are strongly slowed down, diffusion leads to poor antifoam performance. The foam is stable for the duration of the experiment, whereas on Earth the foam starts to disappear immediately. Indeed, microgravity renders highly efficient antifoam practically useless.
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Liu Y, Wu D, Chen M, Zhang B, Chen J, Liu Y. Identification of Methyldiethanolamine Degradation Products and Their Influence on Foaming Properties during the Desulfurization Process for High-Sulfurous Natural Gas. Ind Eng Chem Res 2015. [DOI: 10.1021/ie504432d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Yucheng Liu
- School
of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China
| | - Danni Wu
- School
of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China
| | - Mingyan Chen
- School
of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China
| | - Bo Zhang
- School
of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China
| | - Ju Chen
- School
of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China
| | - Yuanzhi Liu
- Puguang Branch
of Zhongyuan Oilfield Company, Dazhou 636156, China
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Arjmandi-Tash O, Kovalchuk N, Trybala A, Starov V. Foam drainage placed on a porous substrate. SOFT MATTER 2015; 11:3643-3652. [PMID: 25811970 DOI: 10.1039/c5sm00377f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A model for drainage/imbibition of a foam placed on the top of a porous substrate is presented. The equation of liquid imbibition into the porous substrate is coupled with a foam drainage equation at the foam/porous substrate interface. The deduced dimensionless equations are solved using a finite element method. It was found that the kinetics of foam drainage/imbibition depends on three dimensionless numbers and the initial liquid volume fraction. The result shows that there are three different regimes of the process. Each regime starts after initial rapid decrease of a liquid volume fraction at the foam/porous substrate interface: (i) rapid imbibition: the liquid volume fraction inside the foam at the foam/porous substrate interface remains constant close to a final liquid volume fraction; (ii) intermediate imbibition: the liquid volume fraction at the interface with the porous substrate experiences a peak point and imbibition into the porous substrate is slower as compared with the drainage; (iii) slow imbibition: the liquid volume fraction at the foam/porous substrate interface increases to a maximum limiting value and a free liquid layer is formed between the foam and the porous substrate. However, the free liquid layer disappears after some time. The transition points between these three different drainage/imbibition regimes were delineated by introducing two dimensionless numbers.
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Affiliation(s)
- O Arjmandi-Tash
- Department of Chemical Engineering, Loughborough University, Loughborough, LE113TU, UK.
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Khan Memon M, Talib Shuk M, Elraies KA. Solubility of Foam Surfactants in High Divalent Ions at High Temperature. ACTA ACUST UNITED AC 2014. [DOI: 10.3923/jas.2014.3339.3343] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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45
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Denkov ND, Marinova KG, Tcholakova SS. Mechanistic understanding of the modes of action of foam control agents. Adv Colloid Interface Sci 2014; 206:57-67. [PMID: 24041857 DOI: 10.1016/j.cis.2013.08.004] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Revised: 08/06/2013] [Accepted: 08/19/2013] [Indexed: 10/26/2022]
Abstract
In this paper we present briefly our current understanding of the modes of action of foam control agents (often termed "defoamers" or "antifoams"). After summarizing the background knowledge, reviewed in previous articles, the focus of the presentation is shifted to the antifoam studies from the last decade. The new experimental results, obtained by various research groups, are reviewed briefly to reveal the main mechanisms of antifoam action and the related key factors, governing the efficiency of the foam control agents. The role of the entry, spreading and bridging coefficients, of the entry barrier of the antifoam entities, and of the dynamics of surfactant adsorption is specifically discussed.
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46
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Qin S, Hansen BB, Kiil S. Effects of foaming and antifoaming agents on the performance of a wet flue gas desulfurization pilot plant. AIChE J 2014. [DOI: 10.1002/aic.14428] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Siqiang Qin
- Dept. of Chemical and Biochemical Engineering; Technical University of Denmark; DTU, Building 229, DK-2800 Kgs. Lyngby Denmark
| | - Brian B. Hansen
- Dept. of Chemical and Biochemical Engineering; Technical University of Denmark; DTU, Building 229, DK-2800 Kgs. Lyngby Denmark
| | - Søren Kiil
- Dept. of Chemical and Biochemical Engineering; Technical University of Denmark; DTU, Building 229, DK-2800 Kgs. Lyngby Denmark
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47
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McClure DD, Deligny J, Kavanagh JM, Fletcher DF, Barton GW. Impact of Surfactant Chemistry on Bubble Column Systems. Chem Eng Technol 2014. [DOI: 10.1002/ceat.201300711] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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48
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Kougias PG, Boe K, Tsapekos P, Angelidaki I. Foam suppression in overloaded manure-based biogas reactors using antifoaming agents. BIORESOURCE TECHNOLOGY 2014; 153:198-205. [PMID: 24365741 DOI: 10.1016/j.biortech.2013.11.083] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 11/27/2013] [Accepted: 11/29/2013] [Indexed: 06/03/2023]
Abstract
Foam control is an imperative need in biogas plants, as foaming is a major operational problem. In the present study, the effect of oils (rapeseed oil, oleic acid, and octanoic acid) and tributylphosphate on foam reduction and process performance in batch and continuous manure-based biogas reactors was investigated. The compounds were tested in dosages of 0.05%, 0.1% and 0.5% v/vfeed. The results showed that rapeseed oil was most efficient to suppress foam at the dosage of 0.05% and 0.1% v/vfeed, while octanoic acid was most efficient to suppress foam at dosage of 0.5% v/vfeed. Moreover, the addition of rapeseed oil also increased methane yield. In contrast, tributylphosphate, which was very efficient antifoam, was found to be inhibitory to the biogas process.
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Affiliation(s)
- P G Kougias
- Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - K Boe
- Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - P Tsapekos
- Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - I Angelidaki
- Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark.
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49
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Wang L, Wu Z, Zhao B, Liu W, Gao Y. Enhancing the adsorption of the proteins in the soy whey wastewater using foam separation column fitted with internal baffles. J FOOD ENG 2013. [DOI: 10.1016/j.jfoodeng.2013.06.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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50
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Kougias PG, Tsapekos P, Boe K, Angelidaki I. Antifoaming effect of chemical compounds in manure biogas reactors. WATER RESEARCH 2013; 47:6280-6288. [PMID: 23972674 DOI: 10.1016/j.watres.2013.07.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 07/29/2013] [Accepted: 07/30/2013] [Indexed: 06/02/2023]
Abstract
A precise and efficient antifoaming control strategy in bioprocesses is a challenging task as foaming is a very complex phenomenon. Nevertheless, foam control is necessary, as foam is a major operational problem in biogas reactors. In the present study, the effect of 14 chemical compounds on foam reduction was evaluated at concentration of 0.05%, 0.1% and 0.5% v/v(sample), in raw and digested manure. Moreover, two antifoam injection methods were compared for foam reduction efficiency. Natural oils (rapeseed and sunflower oil), fatty acids (oleic, octanoic and derivative of natural fatty acids), siloxanes (polydimethylsiloxane) and ester (tributylphosphate) were found to be the most efficient compounds to suppress foam. The efficiency of antifoamers was dependant on their physicochemical properties and greatly correlated to their chemical characteristics for dissolving foam. The antifoamers were more efficient in reducing foam when added directly into the liquid phase rather than added in the headspace of the reactor.
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Affiliation(s)
- P G Kougias
- Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
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