Heat Production During Thermophilic Decomposition of Municipal Wastes in the Dano-System Composting Plant
Composting is a controlled thermophilic aerobic decomposition of organic solid wastes. The main part of the Dano-System composting plant is the biostabiliser. The biostabiliser was fed with 28 to 81 t of municipal wastes during 24 h. The temperature of composting wastes (28–56 °C) depended on the time of sampling and actual loading of the biostabiliser. Fresh compost from the biostabiliser was put in piles for a period of one to some months to obtain a marketable product. The samples of composting material were taken in 1998–1999 from the middle and the end part of the biostabiliser. Additionally, compost from the piles was sampled. A prototype isothermal calorimeter was used to determine the rate of heat production (RHP) of composting material. The method of closed jars for determining CO2 production was used. The temperature of composting material in the biostabiliser was measured twice every day in 1998 and 1999. A few times the temperature was measured over a period of 24 h. The temperature inside about 2 m high piles was measured at the depth of 1 m.
KeywordsCombustion Respiration Biodegradation Calorimetry Production Line
Unable to display preview. Download preview PDF.
- Alef K, Nannipieri P (eds) (1995) In: Methods in applied soil microbiology and biochemistry, Academic Press, New York pp 214–218Google Scholar
- Cooney CL, Wang DIC, Mateles RI (1968) Measurement of heat evolution and correlation with oxygen consumption during microbial growth. Biotechnol Bioeng 6: 95–123Google Scholar
- Griffis CL, Mote R (1982) A method of measuring the rate at which heat is generated by aerobic composting of wastes. Report Series 275, Nov 1982, Agricultural Experimental Station, Division of Agriculture, University of Arkansas, FayettevilleGoogle Scholar
- Kemp RB (ed) (1999) Handbook of thermal analysis and calorimetry, vol 4, From macromolecules to man. Elsevier Science, AmsterdamGoogle Scholar
- Suwalki (1995) Atest. Okr@gowa Stacja Chemiczno-Rolnicza w Bialymstoku, PolandGoogle Scholar
- VanderGheynst JS, Gossett JM, Walker LP(1997) High-solid aerobic decomposition: pilot-scale reactor developement and experimentation. Process Biochem 32: 361–375Google Scholar
- Van Ginkel JT (1996) Physical and biochemical processes in composting material. PhD Thesis. Agricultural University Wageningen, Wageningen, The NetherlandsGoogle Scholar
- Wiley JS (1957) II Progress report on high-rate composting studies. Eng Bull, Proc of the 12th Industrial Waste Conference, Purdue University, Series 94, pp 596–603, West Lafayette, INGoogle Scholar