[Effect of using three stages inoculation controlled by temperature on organic matter transformation during composting process].
In order to accelerate composting efficiency, municipal solid wastes (MSW) composting was conducted using three stages inoculation controlled by temperature (TSCT). At different composting phases, the samples were taken for the determination of organic matter transformation. Compared to routine inoculation method (CK), total organic carbon (TOC), dissolved organic matter (DOM) of TSCT decrease by 6.37%, 6.57%; and humic substance (HS), humic acid (HA), and humification index (HI) of TSCT increase by 8.61%, 16.75%, 18.40% at 336 hours of composting, respectively. Elemental analysis indicates C/H, O/C of HA molecule in CK increase by 8.33%, 6.25%; and those of TSCT increase by 18.33%, 11.48% at final stage of composting, respectively. These results all lead to the similar conclusion that TSCT would accelerate humification degree, and increase the efficiency of composting.
Wei
Zi-min
ZM
College of Life Science, Northeast Agricultural University, Harbin 150030, China. weizm691120@163.com
Li
Ying-jun
YJ
Xi
Bei-dou
BD
Zhao
Yue
Y
Liu
Hong-liang
HL
He
Lian-sheng
LS
Jiang
Yong-hai
YH
D001419:Bacteria / Q000254:growth & development / Q000378:metabolism*; D001673:Biodegradation, Environmental; D006812:Humic Substances / Q000032:analysis; D009930:Organic Chemicals / Q000378:metabolism*; D012037:Refuse Disposal / Q000379:methods*; D013696:Temperature
D006812:Humic Substances; D009930:Organic Chemicals