CONDITION OPTIMIZATION FOR DYNAMIC EXPERIMENTS OF THERMAL ALKALINE CRACKING SLUDGE

ZHAO Hong-yan; ZHOU Ji-ti; JIN Ruo-fei; WANG Qing-xuan; ZHANG Ye; LIU Jia-xuan

doi:10.13205/j.hjgc.202007011

Volume 38 Issue 7

Nov. 2020

Turn off MathJax

Article Contents

Article Navigation > ENVIRONMENTAL ENGINEERING > 2020 > 38(7): 71-74,121

ZHAO Hong-yan, ZHOU Ji-ti, JIN Ruo-fei, WANG Qing-xuan, ZHANG Ye, LIU Jia-xuan. CONDITION OPTIMIZATION FOR DYNAMIC EXPERIMENTS OF THERMAL ALKALINE CRACKING SLUDGE[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(7): 71-74,121. doi: 10.13205/j.hjgc.202007011

Citation:

ZHAO Hong-yan, ZHOU Ji-ti, JIN Ruo-fei, WANG Qing-xuan, ZHANG Ye, LIU Jia-xuan. CONDITION OPTIMIZATION FOR DYNAMIC EXPERIMENTS OF THERMAL ALKALINE CRACKING SLUDGE[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(7): 71-74,121. doi: 10.13205/j.hjgc.202007011

Citation:

PDF( 1206 KB)

CONDITION OPTIMIZATION FOR DYNAMIC EXPERIMENTS OF THERMAL ALKALINE CRACKING SLUDGE

doi: 10.13205/j.hjgc.202007011

1. Key Laboratory of Industrial Ecology and Environmental Engineering, Dalian University of Technology, Dalian 116024, China;
2. Dalian Environmental Monitoring Center, Dalian 116023, China;
3. School of Environmental Science & Technology, Harbin Institute of Technology, Harbin 150090, China

Received Date: 2019-05-05

Abstract

Abstract

Taking the secondary sludge of municipal sewage treatment plant as the research object and using thermal alkali treatment process to treat the sludge, this study investigated the optimal treatment condition and analyzed the guiding function of static experiment to dynamic experiment. The results showed that for the static experiment of thermal alkali treating sludge, it had the optimal initial pH of 13, temperature of 30℃, and time of 10 h. Under the optimum conditions, the dissolution rate of COD was 61.53%, and the concentration of protein and polysaccharide in aqueous medium were 761.73, 649.85 mg/L respectively; the optimum reaction time of dynamic experiment was 10 h, and under the optimum conditions, the COD dissolution rate was 75.77%, the concentration of the protein and polysaccharide were 1024.70, 842.34 mg/L, which were higher than the results of static experiment. The results showed that the static experiment of sludge had practical guidance to the dynamic experiment, and thermal-alkaline method had a good application prospect.
- thermal-alkaline method,
- dynamic experiment,
- COD dissolution rate,
- protein,
- polysaccharides

FullText(HTML)

References(14)

References

梅立永,王磊,王胜凡,等. 我国城市污水处理厂污泥处理方法及展望[J]. 广东化工,2017,44(18):137-138.

XIE G J, LIU B F, WANG Q, et al. Ultrasonic waste activated sludge disintegration for recovering multiple nutrients for biofuel production[J]. Water Research, 2016,93(15):56-64.

KIM J, PARK C, KIM T H, et al. Effects of various pretreatments for enhanced anaerobic digestion with waste activated sludge[J]. Journal of Bioscience & Bioengineering, 2003,95(3):271-275.

陈蓓蓓.碱热处理破解污泥效果及脱水性能研究[D].马鞍山:安徽工业大学,2013.

ROCHER M, GOMA G, PILAS B A, et al. Towards a reduction in excess sludge production in activated sludge processes:biomass physicochemical treatment and biodegradation[J]. Applied Microbiology and Biotechnology,1999,51(6):883-890.

国家环境保护总局. 《水和废水监测分析方法》编委会. 水和废水监测分析方法[M]. 4版. 北京:中国环境科学出版社,2002.

李春玲.利用污泥制备生物絮凝剂的方法及性能研究[D].大连:大连理工大学,2014.

曲艺.污泥裂解液对高盐有机废水的厌氧强化作用机理研究[D].大连:大连理工大学,2018.

吴亚南.DMBR工艺的影响因素及处理生活污水的应用研究[D].西安:西安建筑科技大学,2017.

杨洁,季民,韩育宏,等. 碱解预处理对污泥固体的破解及减量化效果[J]. 中国给水排水,2007,23(23):93-96.

APPELS L, JAN DEGRōVE, BRUGGEN B V D, et al. Influence of low temperature thermal pre-treatment on sludge solubilisation, heavy metal release and anaerobic digestion[J]. Bioresource Technology, 2010,101(15):5743-5748.

许德超,周礼杰,尹魁浩,等. 低温热碱破解低有机质污泥及磷形态分析[J]. 环境工程学报,2017,11(10):5621-5629.

盛广宏,陈蓓蓓,刘金凤. 热碱处理破解污泥效果研究[J]. 环境科技,2013,26(2):38-42.

欧阳云凤.剩余活性污泥水解工艺的研究[D].天津:天津大学,2008.

Relative Articles

Supplements(0)

Cited By

Proportional views