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Tuesday, November 17, 2020 | History

2 edition of Biofiltration of hydrophilic and hydrophobic volatile organic compounds using wood-based media. found in the catalog.

Biofiltration of hydrophilic and hydrophobic volatile organic compounds using wood-based media.

Madjid Mohseni Tonekaboni

Biofiltration of hydrophilic and hydrophobic volatile organic compounds using wood-based media.

  • 251 Want to read
  • 21 Currently reading

Published .
Written in English


The Physical Object
Pagination1 v. (in various foliations).
ID Numbers
Open LibraryOL19152545M
ISBN 100612352552

  An aqueous liquid medium having increased low shear viscosity and utility as a mobility control agent in enhanced oil recovery is provided by dispersing into the aqueous medium (1) a hydrophilic/hydro. Off-Gas Treatment Technologies for Soil Vapor Extraction Systems' State of the Practice CONTENTS (Continued) Section Engineering Considerations Residuals Management Cost and Economics Developmental Status EMERGING TECHNOLOGIES Non-Thermal Plasma Technologies Technology Description and Applicability . Biofiltration of Air 1A. was illustrated by Mohseni and Allen, , who concluded that, in a mixture of methanol and α -pinene, methanol, a hydrophilic and easily biodegradable compound, was consumed prior to the hydrophobic and recalcitrant α -pinene. Mohseni, M., and Allen, D. G. Biofiltration of mixtures of hydrophilic and.


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Biofiltration of hydrophilic and hydrophobic volatile organic compounds using wood-based media. by Madjid Mohseni Tonekaboni Download PDF EPUB FB2

Biofiltration was successfully applied to treat a mixture of hydrophilic (methanol) and hydrophobic (α-pinene) volatile organic compounds (VOCs) from contaminated air experimental approach involved operating two identical bench-scale biofilters with media consisting of a Cited by: Volatile organic compounds (VOCs) emitted to the environment highly probably result in ecological and health risks.

Many biotechnologies for waste gases containing hydrophobic VOCs have been developed in recent years. However, these biological processes usually exhibit poor removal performances for hydrophobic VOCs due to the low by: Biofiltration was successfully applied to treat a mixture of hydrophilic (methanol) and hydrophobic (α-pinene) volatile organic compounds (VOCs) from contaminated air streams.

The traditional one-liquid phase biofilter (OLPB), with water as the selected liquid phase, demonstrated low performance to volatile hydrophobic organic compounds. In this study, a novel two–liquid phase biofilter (TLPB) using silicone oil and water was established to treat gaseous dichloromethane (DCM).Cited by: s Research on volatile organic compound biofiltration p Several studies at laboratory scale have reported on the degradation of VOCs using biofiltration systems, inoculated with.

Mohseni M. and Allen D.G., Biofiltration of mixtures of hydrophilic and hydrophobic volatile organic compounds, Chem. Eng. Sci., 55, – () Pedersen A.R. and Arvin E., Removal of toluene in waste gases using a biological trickling filter,Biodegradation, – (). Volatile organic compounds (VOCs) are ubiquitous contaminants that can be found both in outdoor and indoor air, posing risks to human health and the ecosystems.

The treatment of air contaminated with VOCs in low concentrations can be effectively Biofiltration of hydrophilic and hydrophobic volatile organic compounds using wood-based media.

book using biofiltration, especially when VOCs are by:   Abstract. The removal of volatile organic compounds (VOCs) from contaminated airstreams has become a major air pollution concern. Improvement of the biofiltration process commonly used for the removal of odorous compounds has led to a better control of key parameters, enabling the application of biofiltration to be extended also to the removal of by: Biofiltration of Volatile Organic Compounds (VOCs) – An Overview for biofiltration of hydrophobic volatile organic compounds in an aqueous media was studied using.

Biofiltration of a mixture of volatile organic compounds on granular activated carbon. (volatile organic compounds) having a lower affinity for activated carbon.

Moreover, while aromatic compounds and MIBK were eliminated along the overall height of the biofilter, pollutants with reduced affinity for AC, such as methanol, acetone, and. Conjugated microporous polymers (CMP) synthesized using homocoupling polymerization reactions were investigated as adsorbents for the removal of volatile organic compounds (VOCs) from gas streams.

The nitrogen adsorption and desorption data revealed that the resultant CMPs possess a micro/mesoporous structur. Biofiltration of Volatile Organic Compounds (VOCs) – An Overview Thakur Prabhat Kumar 1, Rahul 1, Mathur Anil Kumar 2 and Balomajumder Chandrajit 1 1Department of Chemical Engineering, Indian Institute of Technology Roorkee, RoorkeeINDIA 2Uttar Pradesh Pollution Control Board, Agra, INDIA Available online at: Start studying Hydrophilic vs Hydrophobic Colloids.

Learn vocabulary, terms, and more with flashcards, games, and other study tools. od the ions should be based upon their ability to precipitate hydrophobic colloids related to the value of the compound.

Trivalent compounds will have a greater precipitate power than If you treat a. Mixtures of airborne toluene and o-xylene, two relatively recalcitrant volatile organic compounds (VOCs), were treated effectively using integrated UV-biofiltration. Furthermore, RSC are frequently emitted with volatile organic compounds (VOCs, e.g., methanol).

Biofiltration has been regarded as a potentially cost‐effective alternative for the treatment of these mixtures (3 ‐ 5). The biodegradation of DMS in biofilters is often the rate‐limiting step in the biofiltration of RSC (6 ‐ 8). Studies on the biofiltration of DMS have been published, but there has Cited by:   Abstract.

Rhinocladiella similis biodegraded volatile organic compounds (VOCs) of different polarity in gas-phase biofilters. Elimination capacities, (EC) of 74 g hexane m −3 h −1, g ethanol m −3 h −1, 85 g toluene m −3 h −1 and 30 g phenol m −3 h −1 were obtained. EC values correlated with the solubility of the VOCs.

similis grown with n-hexane or ethanol in biofilters Cited by: Synthesis of several hydrophobic ionic liquids (ILs), which might be selected as good candidates for degradation of hydrophobic volatile organic compounds in a two-phase partitioning bioreactor (TPPB), were carried out.

Several bioassays were also realized, such as toxicity evaluation on activated sludge and zebrafish, cytotoxicity, fluoride release in aqueous phase and biodegradability in order to Cited by: Biofiltration, biotrickling filtration and bioscrubbing technologies are evaluated in terms of their suitability for the effective removal of either hydrophilic or hydrophobic VOCs as well as typical inorganic odorous compounds.

A pairwise comparison model was used to assess the performance of selected biological processes of air by: 6. The main objective of this study was to evaluate the degradation of a ternary mixture of n-hexane, benzene, and methanol fed to two Trickle Bed Air Biofilters (TBABs) designated as “A” and “B”.

Both TBABs were loaded with pelletized diatomaceous earth support media and run at an empty bed residence time (EBRT) of s.

TBABs “A” and “B” were operated at pH 4 and fed with n Cited by: 9. Biofiltration was initially mainly exclusively used for the removal of odours by means of soil biofilters designed and set up according to empirical considerations. Applications have recently been extended to a much wider range of compounds, mainly volatile organic compounds, over the last two decades.

Hydrophilic vs. Hydrophobic. Solvents, mixtures, compounds, and particles are just some of the components of a chemist’s life. Studies involving the observance of molecule behavior in any given state or environment may seem to be one of the most brain-whacking jobs for those with little background in chemistry and related sciences, but these are very helpful in coming up with the latest 5/5(2).

In this paper, mathematical models of biofilteration of mixtures of hydrophilic (methanol) and hydrophobic (α-pinene) volatile organic compounds (VOC’s) are : Lakshmanan Rajendran.

Biofiltration of a mixture of volatile organic compounds on granular activated carbon. Aizpuru A(1), Malhautier L, Roux JC, Fanlo JL. Author information: (1)Ecole des Mines d'Alès, Laboratoire Génie de l'Environnement Industriel, 6, Avenue de Clavières, Alès Cedex, by:   Abstract.

The removal of a mixture of painting solvents from waste air using a biofiltration process was evaluated in this project. The pollutants removed included hydrophobic (aromatic hydrocarbons) and hydrophilic (water soluble ketones and esters) by: Highly Hydrophobic Isoreticular Porous Metal–Organic Frameworks for the Capture of Harmful Volatile Organic Compounds An Exceptionally Stable and Water‐Resistant Metal–Organic Framework with Hydrophobic Nanospaces for Extracting Aromatic Pollutants from Water, Chemistry – A European Journal, 20, 38, (), ().

Biofiltration is a well-accepted method for the removal of malodorous compounds from air streams. Interestingly, the mechanisms underlying this process are not fully understood. The aim of this paper was to investigate the simultaneous removal of hydrophobic hexane with hydrophilic ethanol, resulting in the enhanced removal of hexane in the presence of : Piotr Rybarczyk, Bartosz Szulczyński, Jacek Gębicki.

Due to increasingly stringent legal regulations as well as increasing social awareness, the removal of odorous volatile organic compounds (VOCs) from air is gaining importance. This paper presents the strategy to compare selected biological methods intended for the removal of different air pollutants, especially of odorous character.

Biofiltration, biotrickling filtration and bioscrubbing Cited by: 6. Because the natural world is full of hydrophobic and hydrophilic surfaces, the basics of the phenomenon have been known by scientists for at least two centuries.

For example, the lotus leaf is a well-known example of a hydrophobic material, protecting the. Determining the chemical activity of hydrophobic organic compounds in soil using polymer coated vials Fredrik Reichenberg, 1, 2 Foppe Smedes, 3 Jan-Åke Jönsson, 2 and Philipp Mayer 1 1 Department of Environmental Chemistry and Microbiology, National Environmental Research Institute, University of Aarhus, PO BoxRoskilde, DenmarkCited by: “Using Ultraviolet Photooxidation as a Pre-treatment of Volatile Organic Compounds Upstream of a Biological Gas Cleaning Operation”, J.

Chem. Technology and Biotechnology 6 Faitakis, C. and D.G. Allen, () “Biofiltration of Cyclic Air Emissions of alpha-pinene at Low and High Frequencies”, Journal of Air and Waste Management. BIOFILTRATION OF CHLORINATED VOCS. Literature survey Presented By: Mudit Chauhan (A1PSP) Presented To: Dr.

Smitha Raghuvanshi VOCS: DEFINITION General definition is very broad. VOCs are organic chemicals that have a high vapor. Full Text Challenges and solutions for biofiltration of hydrophobic volatile organic compounds by Cheng, Yan and He, Huijun and Yang, Chunping and Zeng, Guangming and Li, Xiang and Chen, Hong and Yu, Guanlong.

Hydrophilic Functional Groups In addition are various hydrophilic linkages such as ethers (i.e., C-O-C), is the relatively easy part of organic chemistry which then goes on to consider the reactions used in the synthesis of organic compounds such as the adding of functional groups to organic molecules.

Probability density of cos(θ C-O-H) in the proximal hemispherical solvation shell around the terminal carbon atoms (water O within a C-O separation Å beyond the most probable) for the different states, where θ C-O-H is the angle between the vectors C → O and O → the cosine is +1 if the O-H is pointed away from the terminal C and is -1 if the vector points toward terminal by: A biofilter media including grains having a hydrophilic nucleus and a hydrophobic coating, the hydrophobic coating includes microorganisms and also includes a metallic agent that both assist in the efficient breakdown of hydrogen sulfide (H2S), other sulfur based compounds, such as reduced sulphur compounds, and both chlorinated and non Title: Professor at American University.

1. J Hazard Mater. Jan 30; doi: /t Epub Nov Performance of innovative PU-foam and natural fiber-based composites for the biofiltration of a mixture of volatile organic compounds by a fungal by:   Hydrophobic on the other hand, literally means “afraid of water.” These membranes will block the passage of water and are commonly used for applications involving separation of water from other materials, such as venting gases.

Here is a helpful table that compares membrane materials and common uses for hydrophilic and hydrophobic properties.

The removal of high concentrations of 1-butanol in an air stream was evaluated with a biotrickling filter for potential application to an industrial off-gas. Experiments were conducted on a laboratory-scale system, packed with perlite, in a co-current downward mode with constant recycling of water.

The performance was monitored for different inlet concentrations and empty bed residence times Cited by:   Zehraoui, A., and Sorial, G.A., “Long term effect of alternate use of hydrophilic VOCs in treatment of hydrophobic VOCs in Trickle-Bed-Air-Biofilter”, th A&WMA Annual Conference & Exhibition, San Antonio, Texas, June 19AWARDS & SCHOLARSHIPS.

Richard Wigger Scholarship (from American Society of Civil Engineers -ASCE). For example, hydrophobic membranes have been observed to be more prone to fouling by natural organic material which are mostly hydrophobic, like protein, oily particles-.

EPA//R/ July Volatile Organic Compounds (VOC) Recovery Seminar September 7, Cincinnati, OH Sustainable Technology Division Technology Transfer and Support Division Air Pollution Prevention and Control Division National Risk Management Research Laboratory Office of Research and Development U.S.

Environmental Protection Agency Cincinnati, OH Printed on.Biological treatment systems have emerged as cost-effective and eco-friendly techniques for treating waste gases from process industries at moderately high gas flow rates and low pollutant concentrations.

In this study, we have assessed the performance of a two-stage bioreactor, namely a biotrickling filter packed with pall rings (BTF, 1st stage) and a perlite+pall ring mixed biofilter (BF, 2nd Cited by: This study aimed to assess the efficiency of removal of volatile organic compounds (VOCs) from process gases from a food industry plant in East Poland, producing high-quality animal (goose, duck, and pig) and vegetable fats, using a two-stage method which is a combination of biological purification and membrane-separation.

The research, conducted on the semi-technical scale, compared the Author: Krystyna Lelicińska-Serafin, Anna Rolewicz-Kalińska, Piotr Manczarski.