摘要
研究了污泥与蘑菇渣的比例分别为7:3、3:2和1:1对造纸污泥堆肥的影响。结果表明:在一定范围内增加造纸污泥的比例更有利于污泥升温。堆肥中温度变化和pH存在正相关性,适当降低污泥含量可以降低堆肥pH,低pH有利于氮素的保存,污泥与蘑菇渣的比例分别为7:3、3:2和1:1的处理全氮含量分别增加-1.18%、11.00%和4.10%。造纸污泥经过好氧堆肥后,种子发芽指数显著增加,但造纸污泥的比例过高或过低均会降低种子发芽指数。堆肥结束时DOC含量分别比初始时降低48.7%、46.4%和48.0%。通过好氧堆肥可增加污泥养分,提高有机质和腐殖质含量,污泥含量过高堆肥产品养分低,造纸污泥与蘑菇渣含量为3:2时效果最佳。
The study of this experiment on effects of conditioners in papermaking sludge aerobic composting,in which the proportion of sludge and mushroom residue were 7：3,3：2 and 1：1.The results showed that it was more conductive to heat up with increasing the proportion of papermaking sludge in a certain range.There was a positive correlation existed between composting temperature and pH,low proportion of sludge can make pH declined,so as to protect the nitrogen,at the end of composting,the nitrogen content increased by-1.18%,11.00% and 4.10%.Germination index after compost significantly increased,but it would reduce when the proportion of papermaking sludge is too high or too low.DOC content reduces by 48.7%,46.4% and 48% in the end of composting.The nutrient,organic matter and humus during the composting increased,however,the nutrient of product would decline if the proportion of sludge was too high,the optimal was 3：2.
出处
《广东农业科学》
CAS
CSCD
北大核心
2010年第10期93-96,共4页
Guangdong Agricultural Sciences
基金
粤港关键领域重点突破项目东莞专项(200920521800013)
关键词
造纸污泥
好氧堆肥
调理剂
papermaking sludge
aerobic compost
conditioners
