@inproceedings{2d45a6a5f804477491dd0c76101204f9,
title = "Research on accelerating excess sludge hydrolysis by adding lysozyme and removing nitrogen and phosphorous in sludge hydrolysis liquid",
abstract = "The experiment adopted a coupled way combining enzyme and alkali to enhanced sludge hydrolysis. Effects of lysozyme dosage and enzyme-catalyzed reaction time on sludge hydrolysis were carried out. Results showed that lysozyme effectively promoted cell lysis, enhanced sludge hydrolysis and dissolved out cell intracellular organic substance. While the optimal dosages of lysozyme (by TS) were 120mg/g, the dissolve organic substance reached maximum quantity under enzyme-catalyzed reaction time 72 hours. The dissolve quantity of SCOD, amylose, albumen and VFAs were 10461.321mg/L, 352.278 mg/L, 1650.275 mg/L and 1455.136mg/L with 120mg/g lysozyme added, increasing 222\%, 222\%, 215\% and 348\% accordingly compared with control group with no lysozyme added. The way coupled struvite precipitation process with air stripping could remove PO 43 and NH4--N in sludge hydrolysis liquid, which provided good way for utilization low nitrogen and phosphorus concentration sludge hydrolysis liquid. The maximum removal rate of PO 43 and NH4--N reached 75.6\% and 97.5\%.",
keywords = "air stripping, excess sludge, hydrolysis, inorganic orthophosphate, lysozyme, struvite",
author = "Chen, \{Zhi Qiang\} and Dou, \{Ke Zhong\} and Wen, \{Qin Xue\} and Lian Xue and Fei Zheng",
year = "2011",
doi = "10.1109/ICETCE.2011.5775936",
language = "英语",
isbn = "9781457702907",
series = "2011 International Conference on Electric Technology and Civil Engineering, ICETCE 2011 - Proceedings",
pages = "4326--4330",
booktitle = "2011 International Conference on Electric Technology and Civil Engineering, ICETCE 2011 - Proceedings",
note = "2011 International Conference on Electric Technology and Civil Engineering, ICETCE 2011 ; Conference date: 22-04-2011 Through 24-04-2011",
}