造纸废水处理单元臭气治理

Treatment of Odour in Papermaking Wastewater Biochemical Treatment Unit

关键词:  造纸废水  臭气  除臭工艺

Key Words:papermaking wastewater  odors  deodorization process

摘要:针对造纸废水生化处理厂产生的臭气，采用好氧活性污泥喷淋吸收-生物滤床过滤-化学除臭组合工艺，其中活性污泥喷淋工艺可去除50%左右的硫化氢（H₂S）及氨气（NH₃），降低末端化学喷淋段碱液耗用量（低至200 kg/d），最终在15 m烟囱排放出口检测出的H₂S及NH₃浓度均达到我国GB 14554—1993《恶臭污染物排放标准》中的排放要求。

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).