Characterisation of photocatalytic degradation of odorous compounds associated with livestock facilities by means of PTR-MS

Yao, Huijun; Feilberg, Anders

doi:10.1016/j.cej.2015.04.094

Cited by 36 publications

(26 citation statements)

References 67 publications

(111 reference statements)

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“…[24][25][26] This technique overcomes some of the disadvantages of traditional GC-MS measurements, such as the time-consuming sample preparation, and is currently used in a wide range of scientific fields allowing for the real-time, online determination of trace organic gases with high sensitivity and a fast response time. 27,28 Proton transfer reaction mass spectrometry has been applied in some studies related to VOC removal using different techniques, such as photocatalytic oxidation, 29 vacuum ultraviolet photolysis, 30 and wet scrubbing coupled with the photo-Fenton reaction. 31 Recently, a laboratory-developed proton transfer time-of-flight mass spectrometry (PTR-TOFMS) instrument was used to investigate toluene removal by NTP in our laboratory.…”

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confidence: 99%

Application of proton transfer reaction mass spectrometry for the assessment of toluene removal in a nonthermal plasma reactor

Peng

Zhu

et al. 2018

J Mass Spectrom

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Proton transfer reaction mass spectrometry (PTR-MS) is a mature technique for the real-time measurement and monitoring of volatile organic compounds in the atmosphere. In this paper, a modified quantification method for PTR-MS was used to assess the performance of nonthermal plasma (NTP) reactor for the removal of toluene which was widely used in industrial production processes. Toluene and 11 corresponding organic by-products were tentatively identified and quantified by a proton transfer reaction time-of-flight mass spectrometer. The degradation dynamics of toluene and the formation of organic by-products were monitored in real-time (resolution = 1 second) under "plasma off" and "plasma on" conditions. We conclude that initial concentration and gas flow rate were the key parameters in the health risk assessment of NTP for the removal of toluene. The toluene removal efficiency and CO selectivity decreased with increasing upstream toluene concentration or gas flow rate, whereas the health risk influence index increased with increasing upstream toluene concentration or gas flow rate. The highest removal efficiency of toluene (100%), CO selectivity (53.2%), and the best health risk influence index for organic by-products (0.11) were achieved when the toluene concentration was kept at 105 ppmv and flow rate at 0.4 L/minute. The results demonstrate that PTR-MS is a promising tool to improve the practical applications of volatile organic compound removal by NTP because it can be used to optimize the NTP working conditions by providing a precise, fast, and clear health risk assessment for organic by-products based on their real-time analysis.

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confidence: 99%

Application of proton transfer reaction mass spectrometry for the assessment of toluene removal in a nonthermal plasma reactor

Peng

Zhu

et al. 2018

J Mass Spectrom

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“…Non-thermal oxidation processes have also found application in the elimination of malodorous compounds. This group includes process, in which the following are used: (Mielcarek et al 2009 ; Yao and Feilberg 2015 ; Yet-Pole 2004 ; Zhu et al 2017 ): Oxidizing compounds Oxidizing compounds using catalysts UV radiation Plasma Combination of the aforementioned methodological solutions …”

Section: Introductionmentioning

confidence: 99%

Technologies for deodorization of malodorous gases

Wysocka

Gębicki

Namieśnik

2019

Environ Sci Pollut Res

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There is an increasing number of citizens’ complaints about odor nuisance due to production or service activity. High social awareness imposes pressure on entrepreneurs and service providers forcing them to undertake effective steps aimed at minimization of the effects of their activity, also with respect to emission of malodorous substances. The article presents information about various technologies used for gas deodorization. Known solutions can be included into two groups: technologies offering prevention of emissions, and methodological solutions that enable removal of malodorous substances from the stream of emitted gases. It is obvious that the selection of deodorization technologies is conditioned by many factors, and it should be preceded by an in-depth analysis of possibilities and limitations offered by various solutions. The aim of the article is presentation of the available gas deodorization technologies as to facilitate the potential investors with selection of the method of malodorous gases emission limitation, suitable for particular conditions.

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“…To overcome the limitations of the conventional processes, the scientific literature has focused the attention on the Advanced Oxidation Processes (AOPs) as alternative technologies applicable to a wide variety of polluting compounds and at different range of concentrations (Paz, 2010;Idi et al, 2015;Yao and Feilberg, 2015;Swetha et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Abatement of odour emissions by UV/Ozone oxidation process

2018

Global NEST Journal

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<p>The growing expectations of the population and the increasingly stringent regulations about air pollution have resulted in the need to minimize and conveniently treat the waste gas from different emission sources. The emissions from a large variety of plants, including waste and wastewater treatment plants, result mainly from the degradation of organic matter. These emissions are composed of a complex of substances emitted at low concentrations from diffusive sources. These characteristics make complex their treatment in economically efficient conditions. The design and management of environmental protection and industrial plants, therefore, require the implementation of focused processes for the control of the target compounds. The present study shows the applicability of an UV-Ozone lab-scale system for odours and VOCs removal. An artificial gaseous stream contaminated by toluene, at different incoming concentrations, was treated evaluating the abatement efficiencies in terms of odours and total VOCs as a function of power and contact time. The residue ozone concentrations was determined in order to optimize the set-up conditions. The results were discussed with the aim of evaluating the feasibility of the investigated solution for the advanced treatment of the waste gas from environmental facilities. Removal efficiencies up tp 91% were reached for the investigated conditions. Lower inlet concentrations resulted in high residue ozone outgoing the processes and, thus, it resulted over dimensioned for inlet load lower than 1,22 mg per minute.</p>

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Characterisation of photocatalytic degradation of odorous compounds associated with livestock facilities by means of PTR-MS

Cited by 36 publications

References 67 publications

Application of proton transfer reaction mass spectrometry for the assessment of toluene removal in a nonthermal plasma reactor

Application of proton transfer reaction mass spectrometry for the assessment of toluene removal in a nonthermal plasma reactor

Technologies for deodorization of malodorous gases

Abatement of odour emissions by UV/Ozone oxidation process

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