[1]张多英,李伟光,公绪金,等.O3-BEAC-UV/Cl工艺去除低温水中氨氮的研究[J].中国给水排水,2017,33(01):1-6.
ZHANG Duo-ying,LI Wei-guang,GONG Xu-jin,et al.O3-BEAC-UV /Cl Process for Removing Ammonia Nitrogen fromLow Temperature Source Water[J].China Water & Wastewater,2017,33(01):1-6.
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ZHANG Duo-ying,LI Wei-guang,GONG Xu-jin,et al.O3-BEAC-UV /Cl Process for Removing Ammonia Nitrogen fromLow Temperature Source Water[J].China Water & Wastewater,2017,33(01):1-6.
O3-BEAC-UV/Cl工艺去除低温水中氨氮的研究
中国给水排水[ISSN:1000-4062/CN:12-1073/TU]
卷:
第33卷
期数:
2017年01期
页码:
1-6
栏目:
出版日期:
2017-01-01
- Title:
- O3-BEAC-UV /Cl Process for Removing Ammonia Nitrogen fromLow Temperature Source Water
- Keywords:
- low temperature source water; ammonia nitrogen; bio-enhanced activated carbon; ozone oxidation; ultraviolet /chlorine coupling; novel strain HITLi 7T
- 摘要:
- 为解决低温水中氨氮难去除的问题,将新菌种———哈尔滨不动细菌 HITLi 7T( 占总菌量的 80% ) 和专利菌种、菌剂构建低温除氨氮的优势菌群,形成生物增强活性炭工艺( BEAC) ,并前置臭氧( O3 ) 氧化,后置紫外/氯耦合( UV /Cl) ,构成 O3 - BEAC - UV /Cl 新工艺,并在 4 种工况下运行,确定该工艺的最佳运行条件,分析其对消毒副产物的控制情况。结果表明,投加 O3 可以提高水中可生物降解有机物( BDOC) 的量,提高 BEAC 工艺对氨氮的去除率。当臭氧投加量为 1 ~ 2mg /L,氯氮比为 3 ~ 4,紫外光强为 15 mW /cm2 时,O3 - BEAC - UV /Cl 工艺可在 0 ~ 1 ℃ 条件下将原水中 1 ~ 2 mg /L 的氨氮去除至 0. 2 ~ 0. 3 mg /L,且消毒副产物生成量极低,满足《生活饮用水卫生标准》( GB 5749—2006) 的要求。
- Abstract:
- For removing ammonia nitrogen from low temperature source water,the novel strain( Acinetobacter harbinensis HITLi 7T) ,the patent strains and the microbial agent were used to constructthe dominant bacterial community for removing ammonia nitrogen at low temperature,which formed thebio-enhanced activated carbon ( BEAC) filter process. Acinetobacter harbinensis HITLi 7T accounted for80% of the total quantity of the dominant bacterial community. The ozone ( O3 ) oxidation was set beforethe BEAC filter. The ultraviolet /chlorine ( UV /Cl) was used after the BEAC filter. A novel process,O3-BEAC-UV/Cl,was constructed. The novel process was run under four different conditions for confirmingthe optimal operational parameters. The disinfection by-products ( DBPs) in the novel process were ana-lyzed. The results showed that addition of ozone could improve the biodegradable dissolved organic carbon( BDOC) in water,which could increase the removal rate of ammonia nitrogen by the BEAC process. Thenovel process could remove ammonia nitrogen in source water from 1 - 2 mg /L to 0. 2 - 0. 3 mg /L at 0 to1 ℃ when ozone dosage was 1 to 2 mg /L,Cl /N ratio was 3 to 4,and ultraviolet strength was 15 mW/cm2. The DBPs produced from O3-BEAC-UV/Cl process were much lower than the drinking water stand-ard. The outflow quality from O3-BEAC-UV/Cl process could meet the requirements of the Standards forDrinking Water Quality ( GB 5749 - 2006) .
更新日期/Last Update:
2017-01-01