Enhancing sludge biodegradability through free nitrous acid pre-treatment at low exposure time
- Zahedi, S.
- Icaran, P.
- Yuan, Z.
- Pijuan, M.
Publication date
August 2017
DOI Publisher
Elsevier BV ISSN
1385-8947 Citation count (estimate)
3Abstract
The effectiveness of low free nitrous acid (FNA) pre-treatment times (PTs) (5 h) resulted in a decrease in MP due to a volatile solid reduction on WAS during the pretreatment. The highest FNA concentration tested (4.62 mg N-HNO/L) did not further improve MP and SMP. This study clearly shows the effectiveness of the FNA sludge pretreatment at low exposure times
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