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Abstract:
为了实现从剩余污泥中高品位回收鸟粪石(MAP, MgNH_4PO_4·6H_2O),本研究考察了厌氧发酵、冷冻+微波两种污泥预处理方式促进污泥中氮、磷的释放及回收效果.试验结果表明:污泥厌氧发酵在温度30℃、pH=12、发酵时间4 d时,PO_4~(3-)-P和HN~+_4-N的最大释放量分别为224.50 mg·L~(-1)(即7.24 mmol·L~(-1))和278.17 mg·L~(-1)(即19.87 mmol·L~(-1)),PO_4~(3-)-P物质的量浓度远小于HN~+_4-N物质的量浓度.冷冻+微波联合预处理在冷冻温度-20℃、冷冻时间48 h、微波初始pH=3、微波时间9 ...
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环境科学学报
Year: 2020
Issue: 08
Volume: 40
Page: 2842-2850
Cited Count:
WoS CC Cited Count: 63
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 23
Affiliated Colleges: