Waste activated sludge disintegration with free nitrous acid - Comprehensive analysis of the process parameters

被引:9
作者
Szypulska, Dorota [1 ]
Miodonski, Stanislaw [1 ]
Janiak, Kamil [1 ,2 ]
Muszynski-Huhajlo, Mateusz [1 ]
Zieba, Bartosz [1 ]
Cema, Grzegorz [3 ]
机构
[1] Wroclaw Univ Sci & Technol, Fac Environm Engn, Wybrzeze Wyspianskiego 27, PL-50370 Wroclaw, Poland
[2] Wroclaw Municipal Water & Sewage Co, Na Grobli 14-16, PL-50421 Wroclaw, Poland
[3] Silesian Tech Univ, Fac Energy & Environm Engn, Akad 2A, PL-44100 Gliwice, Poland
关键词
Free nitrous acid; Nitrite; Waste activated sludge pre-treatment; METHANE PRODUCTION; ANAEROBIC-DIGESTION; PRETREATMENT; BIODEGRADABILITY; FERMENTATION; KINETICS; GREEN;
D O I
10.1016/j.renene.2021.03.005
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Current data about disintegration of waste activated sludge (WAS) with free nitrous acid (FNA) do not provide information about the efficiency of concentrations higher than 6.1 mgHNO(2)-N/L and exposure times over 72 h. Moreover, current references do not represent disposable soluble chemical oxygen demand (SCOD) release as data on COD consumption for denitrification of residual nitrites are not presented. In this study, WAS from a large wastewater treatment plant (WWTP) was exposed to an FNA concentration ranging from 0.0 to 352.7 mgHNO(2)-N/L for as long as 6 days to provide missing data. FNA concentrations higher than previously reported have been shown to release greater amounts of organic matter, even when the requirement for denitrification is taken into account. Therefore higher concentrations may be beneficial for WWTPs, especially when a drop in costs of sludge disposal is considered. Demand of organic compounds for nitrites denitrification can constitute up to 86% of total released SCOD and therefore this process has to be included. Besides, tests for specific biomethane potential (SBMP) showed that increasing FNA concentrations above 6.4 mgHNO(2)-N/L did not benefit the growth of SBMP anymore, while FNA at least up to 3.7 mgHNO(2)-N/L did not increase the methane potential compared to control. (c) 2021 Elsevier Ltd. All rights reserved.
引用
收藏
页码:112 / 120
页数:9
相关论文
共 31 条
[21]   The effect of volatile fatty acid additions on the anaerobic digestion of cellulose and glucose in batch reactors [J].
Siegert, I ;
Banks, C .
PROCESS BIOCHEMISTRY, 2005, 40 (11) :3412-3418
[22]   Enhancing methane production from waste activated sludge using combined free nitrous acid and heat pre-treatment [J].
Wang, Qilin ;
Jiang, Guangming ;
Ye, Liu ;
Yuan, Zhiguo .
WATER RESEARCH, 2014, 63 :71-80
[23]   Free Nitrous Acid (FNA)-Based Pretreatment Enhances Methane Production from Waste Activated Sludge [J].
Wang, Qilin ;
Ye, Liu ;
Jiang, Guangming ;
Jensen, Paul D. ;
Batstone, Damien J. ;
Yuan, Zhiguo .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2013, 47 (20) :11897-11904
[24]   Free nitrous acid promotes hydrogen production from dark fermentation of waste activated sludge [J].
Wang, Yali ;
Zhao, Jianwei ;
Wang, Dongbo ;
Liu, Yiwen ;
Wang, Qilin ;
Ni, Bing-Jie ;
Chen, Fei ;
Yang, Qi ;
Li, Xiaoming ;
Zeng, Guangming ;
Yuan, Zhiguo .
WATER RESEARCH, 2018, 145 :113-124
[25]   Free nitrous acid pre-treatment of waste activated sludge enhances volatile solids destruction and improves sludge dewaterability in continuous anaerobic digestion [J].
Wei, Wei ;
Wang, Qilin ;
Zhang, Liguo ;
Laloo, Andrew ;
Duan, Haoran ;
Batstone, Damien J. ;
Yuan, Zhiguo .
WATER RESEARCH, 2018, 130 :13-19
[26]   Nitrogen recovery from reject water by the production of nitrite concentrate via nitritation, membrane processes and ion exchange [J].
Wiercik, Pawel ;
Domanska, Magdalena ;
Konieczny, Tomasz .
DESALINATION AND WATER TREATMENT, 2020, 197 :90-100
[27]   Effects of free nitrous acid and freezing co-pretreatment on sludge short-chain fatty acids production and dewaterability [J].
Wu, Yuqi ;
Song, Kang ;
Sun, Xiaoyan ;
Li, Lu ;
Wang, Wenlin ;
Wang, Qilin ;
Wang, Dongbo .
SCIENCE OF THE TOTAL ENVIRONMENT, 2019, 669 :600-607
[28]   Optimization of free nitrous acid pre-treatment on waste activated sludge [J].
Zahedi, S. ;
Romero-Guiza, M. ;
Icaran, Pilar ;
Yuan, Z. ;
Pijuan, M. .
BIORESOURCE TECHNOLOGY, 2018, 252 :216-220
[29]   Enhancing sludge biodegradability through free nitrous acid pre-treatment at low exposure time [J].
Zahedi, S. ;
Icaran, P. ;
Yuan, Z. ;
Pijuan, M. .
CHEMICAL ENGINEERING JOURNAL, 2017, 321 :139-145
[30]   Assessment of free nitrous acid pre-treatment on a mixture of primary sludge and waste activated sludge: Effect of exposure time and concentration [J].
Zahedi, S. ;
Icaran, P. ;
Yuan, Z. ;
Pijuan, M. .
BIORESOURCE TECHNOLOGY, 2016, 216 :870-875