Critical Components of Odors and VOCs in Mechanical Biological Treatment Process of MSW

Hou, Jianbo; Li, Ming Xiao; Wei, Zi Min; Xi, Bei Dou; Jia, Xuan; Zhu, Chun; Liu, Dong Ming

doi:10.4028/www.scientific.net/amr.647.438

Cited by 3 publications

(3 citation statements)

References 12 publications

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“…Mechanical separation is a typical physical treatment method, divided into inertial, gravity, and centrifugal separation [43][44][45]. The inertial separation method changes the airflow direction by setting up folded plates and filters to make the oil droplets collide and stick to the pipe.…”

Section: Physical Capture Methodsmentioning

confidence: 99%

Review of Emission Characteristics and Purification Methods of Volatile Organic Compounds (VOCs) in Cooking Oil Fume

Tao

Zhou

et al. 2023

Processes

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Volatile organic compounds (VOCs) in cooking oil fumes need to be efficiently removed due to the significant damage they cause to the environment and human health. This review discusses the emission characteristics, which are influenced by different cooking temperatures, cooking oils, and cuisines. Then, various cooking oil fume purification methods are mainly classified into physical capture, chemical decomposition, and combination methods. VOCs removal rate, system operability, secondary pollution, application area, and cost are compared. The catalytic combustion method was found to have the advantages of high VOC removal efficiency, environmental protection, and low cost. Therefore, the last part of this review focuses on the research progress of the catalytic combustion method and summarizes its mechanisms and catalysts. The Marse-van Krevelen (MVK), Langmuir-Hinshelwood (L-H), and Eley-Rideal (E-R) mechanisms are analyzed. Noble metal and non-noble metal catalysts are commonly used. The former showed excellent activity at low temperatures due to its strong adsorption and electron transfer abilities, but the high price limits its application. The transition metals primarily comprise the latter, including single metal and composite metal catalysts. Compared to single metal catalysts, the interaction between metals in composite metal catalysts can further enhance the catalytic performance.

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Section: Physical Capture Methodsmentioning

confidence: 99%

Review of Emission Characteristics and Purification Methods of Volatile Organic Compounds (VOCs) in Cooking Oil Fume

Tao

Zhou

et al. 2023

Processes

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“…As indicated in the available literature, the activity of MBT plants is associated with the emission of odors and odorants into the atmospheric air (Almarcha et al 2012, Colón et al 2017, Fei et al 2018, Hou et al 2013 Wiśniewska et al 2020a, Wiśniewska et al 2019. The activities of MBT plants mainly include processes related to the management of mixed municipal waste and are indicated as one of the key elements of waste management (Ragazzi et al 2013).…”

Section: Mechanical-biological Waste Treatment Plantsmentioning

confidence: 99%

“…Biodegradation can occur both under aerobic (He et al 2020) and anaerobic (Wiśniewska 2020a) conditions. The processes related to the management of municipal waste containing organic fractions, which can generate odors, include: waste collection at residential areas (Liu et al 2020, Shi et al 2020, Tan et al 2017, transport (Tan et al 2017, waste transfer stage at transfer stations (Chang et al 2019 and the activities related to waste management at mechanical-biological treatment (MBT) plants and biological waste treatment plants (Colón et al 2017, Hou et al 2013, Kulig and Szyłak-Szydłowski 2016, Sironi et al 2006, including aerobic stabilization and anaerobic stabilization technology, in the case of mixed municipal waste treatment, as well as composting and anaerobic digestion, in the case of selectively collected bio-waste (Mustafa et al 2017, Sánchez--Monedero et al 2018, Sironi et al 2007, Wiśniewska et al 2019, thermal treatment of waste in waste incineration plants (Guo et al 2017, Çetin Doğruparmak et al 2018 or landfilling (Duan et al 2021, Zhang et al 2021. Figure 1 shows the waste management chain with the possible individual waste management steps.…”

Section: Introductionmentioning

confidence: 99%

Archives of Environmental Protection

Pawnuk,

Szulczyński,

Den Boer

et al. 2022

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Waste management faces more and more serious challenges, especially given the growing amount of municipal waste generated in Poland and the resulting environmental impact. One of the significant environmental aspects of waste management is the emission of odorants and odors. Taking into account the odor problem, the majority of municipal waste generated is being collected as mixed waste (62% of municipal waste), which by weight contains approximately 32.7% of kitchen and garden waste. These organic fractions are mainly responsible for the emission of odor and odorants. Those substances can be emitted at every stage: from the waste collection at residential waste bins, through transport, waste storage, and transfer stations, up to various respective treatment facilities, i.e., mechanical-biological waste treatment plants, landfills, or waste incineration plants. The gathered data during the study showed that it is necessary to increase the share of different waste management methods, i.e., recycling, composting, or fermentation processes rather than landfilling to meet all necessary regulations and to fulfill provisions of the waste hierarchy. One of the actions indicated in the legal solutions is expansion, retrofitting, and construction of new sorting plants, anaerobic digestion plants, composting plants, and increase in thermal treatment capacity. Variety of different processes that could emit odors and a diversity of different odor-generating substances released from particular waste management steps should be taken into consideration when building new facilities which are suitable for waste treatment. The overall aim of the work was to characterize and summarize available knowledge about waste management system in Poland and to gather information about odor-generating substances emitted from different waste management steps and facilities, which could be a potential source of information for preparing legal solutions to reduce possible odor nuisance form broadly understood waste management.

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Simultaneous removal of ammonia and hydrogen sulfide gases using biofilter media from the biodehydration stage and curing stage of composting

Hou

Xia

et al. 2016

Environ Sci Pollut Res

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Biofiltration of NH and HS with different packing media, biodehydration stage compost (BSC), and curing stage compost (CSC) was studied. Meanwhile, fluorescence excitation-emission matrix (EEM) spectroscopy was used to characterize the conversion mechanisms of organic matter during these biofiltration processes. Both biofilters were effective for the simultaneous removal of NH and HS when inlet concentrations of NH and HS were 0-50 and 50-250 mg/m, respectively. An abrupt increase in the inlet gas concentrations of NH and HS to 100-150 and 200-250 mg/m, respectively, caused the decrease in the removal efficiencies (REs) of NH and HS in the BSC biofilter, followed by a slow upturn. By contrast, relatively steady REs of both NH and HS were observed in the CSC biofilter. After 60 days of operation, the average REs of NH and HS were more than 95 % in the CSC biofilter. During the operation of CSC, nitrate and nitrite peaked around the 30th day, whereas sulfate showed a steady increase. The excitation-emission matrix fluorescence and parallel factor analysis (EEM-PARAFAC) indicated that the simultaneous inlet of NH and HS facilitated the degradation of protein-like substances, whereas humic-like substances played an important role in the packing filters for the treatment of the two odorous pollutants.

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Critical Components of Odors and VOCs in Mechanical Biological Treatment Process of MSW

Cited by 3 publications

References 12 publications

Review of Emission Characteristics and Purification Methods of Volatile Organic Compounds (VOCs) in Cooking Oil Fume

Review of Emission Characteristics and Purification Methods of Volatile Organic Compounds (VOCs) in Cooking Oil Fume

Archives of Environmental Protection

Simultaneous removal of ammonia and hydrogen sulfide gases using biofilter media from the biodehydration stage and curing stage of composting

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