Influence of aeration on volatile sulfur compounds (VSCs) and NH3emissions during aerobic composting of kitchen waste.
This study investigates the influence of aeration on volatile sulfur compounds (VSCs) and ammonia (NH3) emissions during kitchen waste composting. Aerobic composting of kitchen waste and cornstalks was conducted at a ratio of 85:15 (wet weight basis) in 60L reactors for 30days. The gas emissions were analyzed with force aeration at rates of 0.1 (A1), 0.2 (A2) and 0.3 (A3) L (kgDMmin)-1, respectively. Results showed that VSCs emission at the low aeration rate (A1) was more significant than that at other two rates (i.e., A2 and A3 treatment), where no considerable emission difference was observed. On the other hand, NH3emission reduced as the aeration rate decreased. It is noteworthy that the aeration rate did not significantly affect the compost quality. These results suggest that the aeration rate of 0.2L (kgDMmin)-1may be applied to control VSCs and NH3emissions during kitchen waste composting.
College of Resources and Environment Sciences, China Agricultural University, Beijing 100094, China; Beijing Building Materials Academy of Science Research/State Key Laboratory of Solid Waste Reuse for Building Material, Beijing 100041, China.
Hongyu
H
Zhang
College of Resources and Environment Sciences, China Agricultural University, Beijing 100094, China. Electronic address: zhyycj6688@163.com.
Guoxue
G
Li
Beijing Building Materials Academy of Science Research/State Key Laboratory of Solid Waste Reuse for Building Material, Beijing 100041, China.
Jun
J
Gu
Beijing Environmental Sanitation Engineering Research Institute, Beijing 100028, China.
Guiqin
G
Wang
College of Resources and Environment Sciences, China Agricultural University, Beijing 100094, China.
Yangyang
Y
Li
College of Resources and Environment Sciences, China Agricultural University, Beijing 100094, China.
Difang
D
Zhang
D000388:Air; D000393:Air Pollutants / Q000032:analysis; D000397:Air Pollution / Q000517:prevention & control; D000641:Ammonia / Q000032:analysis*; D000068476:Beijing; D018525:Germination; D009584:Nitrogen / Q000032:analysis; D010100:Oxygen / Q000032:analysis; D012987:Soil; D013455:Sulfur / Q000032:analysis; D013457:Sulfur Compounds / Q000032:analysis*; D013696:Temperature; D003313:Zea mays
D000393:Air Pollutants; D012987:Soil; D013457:Sulfur Compounds; D013455:Sulfur; D000641:Ammonia; D009584:Nitrogen; D010100:Oxygen
Aerobic; Composting; Kitchen waste; NH(3); Volatile sulfur compounds (VSCs)