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

Abstract:

Mechanical Biological Treatment Process of MSW is a new garbage disposal technology for the main purpose to improve the efficiency of garbage sorting. Malodorous gas, namely provisions to limit emissions of the emitted pollutant discharge standard was collected and analyzed, and 64 major VOCs emissions in the process of MBT were also analyzed by gas chromatography-mass spectrometry (GC-MS). The results showed that, First, odor concentration of the top ten odorous substances of VOCs in MSW were successively toluene, ethyl acetate, methylene chloride, methyl ethyl ketone, xylene, styrene, 1,2- dichloropropane, trichlorethylene, ethylbenzene, trimethylbenzene, Accounted for 93.57% of the volume of total VOCs. Therefore, the above VOCs were key control object during MBT process; Second, at trommel link of Mechanical separation process, ammonia, hydrogen sulfide, carbon disulfide, dimethyl sulfide odor concentration were higher 11.67%, 3.8%, 25.42%, 128.93% compared to artificial selection as background value; Third, during biological treatment processes, NH3, H2S were the main control substances. ketones was detected in the end of the biological treatment, indicating that local anaerobic reactor engendered in the composting process. Therefore, proper ventilating was needed to control VOCs production and release in biological process.

• Periodical: Advanced Materials Research (Volume 647)
• Pages: 438-449
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.647.438
• Online since: January 2013
• Authors: Jia Qi Hou, Ming Xiao Li, Zi Min Wei, Bei Dou Xi, Xuan Jia, Chao Wei Zhu, Dong Ming Liu
• Keywords: Mechanical Biological Treatment, MSW, Odor Pollutants, VOCS

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