Effect of free nitrous acid pre-treatment on primary sludge biodegradability and its implications
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- 作者：Tingting Zhanga ; Qilin Wanga ; q.wang@awmc.uq.edu.au" class="auth_mail" title="E-mail the corresponding author ; Liu Yea ; b ; Zhiguo Yuana ; zhiguo@awmc.uq.edu.au" class="auth_mail" title="E-mail the corresponding author
- 关键词：FNA or HNO2 ; free nitrous acid ; WAS ; waste activated sludge ; WWTP ; wastewater treatment plant ; PS ; primary sludge ; BMP ; biochemical methane potential ; AD ; anaerobic digestion ; MW ; molecular weight ; IS ; inoculum sludge ; TS ; total solids ; VS ; volatile solids ; TCOD ; total chemical oxygen demand ; SCOD ; soluble chemical oxygen demand ; GPC ; gel permeation chromatography ; FTIR ; Fourier transform infrared spectroscopy ; GC ; gas chromatography
- 刊名：Chemical Engineering Journal
- 出版年：2016
- 出版时间：15 April 2016
- 年：2016
- 卷：290
- 期：Complete
- 页码：31-36
- 全文大小：581 K
文摘
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FNA pre-treatment reduces rather than enhances methane production from PS.
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The methane production from both solid and supernatant phases of the PS decreased.
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The decrease was ascribed presumably to the inherent sludge properties of PS.
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FNA treatment should only be applied to WAS rather than a mixture of WAS and PS.