摘要
采用臭氧处理北京市高碑店污水处理厂二沉池出水,就臭氧对二沉池出水的氧化特性进行了研究。结果表明,臭氧对二沉池出水中的COD、色度、UV254均有较好的去除效果,但对TOC的去除效果较差。试验条件下,臭氧的最佳投加量为10 mg/L、最佳接触时间为15 min,此时对COD的去除率为19.12%,去除单位COD的臭氧投加量为1.79 mg;对色度的去除率为58.59%,去除单位色度的臭氧投加量为1.46 mg;对UV254的去除率为39.57%,去除0.001 cm-1吸光度的臭氧投加量为2.82 mg;TOC/UV254提高到140.29,可生化性提高了1.59倍。
The oxidation characteristics of ozone in treatment of the secondary effluent from Beijing Gaobeidian Wastewater Treatment Plant were studied. The results show that ozone has a higher removal efficiency of COD, color and UV254, but a lower removal efficiency of TOC. When the optimal ozone dosage is 10 mg/L, and the optimal contact time is 15 min, the removal rates of COD, color and UV254 are 19.12% with 1.79 mg （O3）/rag （COD）, 58.59% with 1.46 mg （O3）/time （color） and 39.57% with 2.82 mg（ 03 ）/0. 001 cm ^-1 ; TOC/UV254 is up to 140.29, and the biodegradability is increased by 1.59 times.
出处
《中国给水排水》
CAS
CSCD
北大核心
2010年第5期124-126,130,共4页
China Water & Wastewater
基金
北京市自然科学基金资助项目(8092007)
国家自然科学基金资助项目(50678008)
国家水体污染控制与治理科技重大专项(2008ZX07317-02)
关键词
二沉池出水
臭氧
氧化特性
接触时间
可生化性
secondary effluent
ozone
oxidation characteristics
contact time
biodegradability
