Pollutant Emissions from Municipal Biowaste Composting: Comparative Analysis and Contribution of N-Containing Organic Compounds

Vladimir Mironov (), Vitaly Zhukov, Ivan Moldon, Nataliya Zagustina, Anna Shchelushkina, Valeria Ostrikova, Irina B. Kotova and Shenghua Zhang
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Vladimir Mironov: Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, Moscow 119071, Russia
Vitaly Zhukov: Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, Moscow 119071, Russia
Ivan Moldon: Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, Moscow 119071, Russia
Nataliya Zagustina: Bach Institute of Biochemistry, Research Center of Biotechnology, Russian Academy of Sciences, Moscow 119071, Russia
Anna Shchelushkina: Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, Moscow 119071, Russia
Valeria Ostrikova: Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, Moscow 119071, Russia
Irina B. Kotova: Biological Faculty, Lomonosov Moscow State University, Moscow 119991, Russia
Shenghua Zhang: College of Harbour and Coastal Engineering, Jimei University, Xiamen 361021, China

Energies, 2023, vol. 16, issue 21, 1-23

Abstract: The disposal of municipal biowaste is associated with the formation of malodorous and frequently hazardous volatile compounds. The composition of volatile pollutants formed during composting of mechanically sorted organic fraction of municipal solid waste (ms-OFMSW), sewage sludge (SS), food waste (FW), and wood waste (WC) during 28 days in a laboratory setup was analysed using electrochemical measurements, gas chromatography, and solid phase microextraction. Despite the close biodegradation intensity of SS+WC, ms-OFMSW, and FW+WC, the average temperature values were 57.0, 51.7, and 50.6 °C. The emission of volatile substances per day were: CO 2 0.64, 0.68, and 0.64 g/kg, NH 3 22.3, 93.1, and 4.9 µg/kg, CH 4 5.3, 1.5 and 8.7 mg/kg, H 2 S 5.0, 3.3 and 1.8 µg/kg organic matter. The ratios of emission from SS+FW, ms-OFMSW and FW+WC for inorganic substances were 1.0, 1.1, and 1.0, and for organic compounds (VOC) were 1, 24, and 123. A total of 121 VOC was identified. The 12 N-containing compounds detected at the beginning of composting, some of which are highly toxic, ranged from 3.2 to 21.0% of the total VOC and belonged to amines with a very low olfactory thresholds and heterocyclic compounds. The results of this research help to optimise the systems used to remove pollutants from exhaust air.

Keywords: municipal solid biowaste; composting; ammonia; hydrogen sulphide; carbon dioxide; volatile organic compounds; N-containing VOC (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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