摘要
以活性污泥(以下简称为污泥)为研究对象,以合成氨厂广泛使用的白泥型煤为参照,进行了气化用型煤粘结剂的研究.结果表明,当污泥添加量为2%(干基)白泥添加量为03%(干基)时,所制得的型煤抗压强度、跌落强度、热稳定性与白泥型煤相当.研究表明,成型压力30MPa,烘干温度150℃和烘干时间2h是制污泥型煤的合适工艺条件.
The cohesiveness of active sludge with coal powder was studied in order to use it as briquette which is raw material of gasification in ammonia synthesis.Briquette with white earth was taken as a reference.The results indicated that coincident beaten strength,falling strenngth annd thermal stability of the sewage sludge briquette made of 2%(dry basis)sewage sludge,0.3% white earth,and coal powered equivalent to those of white earth briquette.Modeling pressure of 30MPa,Drying temperature of 150℃ and drying time of 2h were suitable conditions for production of sewage sludge briquette.
出处
《环境科学学报》
CAS
CSCD
北大核心
1999年第1期87-90,共4页
Acta Scientiae Circumstantiae