Indexed by:
Abstract:
污泥碱性水解产生短链脂肪酸,可应用到污水脱氮除磷中,但会使其脱水性能恶化.为考察温度和污泥浓度对剩余污泥水解及脱水性能的影响,试验研究了20 d内剩余污泥在pH=10、温度25和35℃、不同总悬浮固体(total suspended solids,TSS)下厌氧水解和脱水性能的变化,对溶解性化学需氧量(soluble chemical oxygen demand,SCOD)和毛细管吸收时间(capillary suction time,CST)进行了分析.试验表明:25℃时污泥脱水性随ρ(TSS)升高先恶化后变化不大,各发酵时间SCOD均升高后变缓;35 ℃时污泥脱水性随ρ(TSS)升高先恶化后略提高,SCOD变化与25 ℃时一致.SCOD变化情况与CST显著正相关;较高温度SCOD溶出更多,脱水性能稍有恶化;TSS对污泥脱水性能的影响较温度更显著.
Keyword:
Reprint Author's Address:
Email:
Source :
北京工业大学学报
ISSN: 0254-0037
Year: 2013
Issue: 12
Volume: 39
Page: 1905-1910
Cited Count:
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: 3
Chinese Cited Count:
30 Days PV: 4
Affiliated Colleges: