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| Treatment of Odour in Papermaking Wastewater Biochemical Treatment Unit |
| Received:February 05, 2020 |
| DOI：10.11980/j.issn.0254-508X.2020.06.014 |
| Key Words:papermaking wastewater odors deodorization process |
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| Abstract:The combination process of aerobic activated sludge spray absorption-biological filter bed-chemical deodorant was selected to treat the odour produced from papermaking wastewater biochemical treatment unit. The activated sludge spraying process could remove 50% hydrogen sulfide and ammonia gas, and reduced the liquid alkali consumption at the end chemical spraying stage (as low as 200 kg/d on average). Finally, the concentrations of hydrogen sulfide and ammonia gas exhausted from the 15 m emission funnel met the requirements of the discharge standard for odorous pollutants (GB 14554—1993). |
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