摘要
为解决兰州石化公司催化剂废水和碱渣废水的治理难题,采用加药、气浮与曝气生物流化池相结合的工艺对两种废水进行综合处理.中试结果表明,对石油类、挥发酚、悬浮固体、COD、氨氮和硫化物的去除率分别达到了81.3%、99.7%、75.6%、72.5%、99.3%和99.3%.在中试的基础上,将原有的平流式沉淀池改造为曝气生物流化池,经一年多的运行,对石油类、挥发酚、悬浮固体、COD、氨氮和硫化物的去除率分别为75%～88%、99%、34%～37%、64%～85%、99%和99%以上,出水水质达到了〈污水综合排放标准〉（GB 8978-1996）的一级标准,且污泥产量仅为常规处理工艺的10%.
In order to resolve the difficulty of harnessing wastewater containing catalytic and alkaline mud from Lanzhou Petrochemical Company, a wastewater treatment process combining dosing, flotation with aeration biological fluid tank （ABFT） was used. A pilot-scale experiment shows that the removal rates of petroleum, volatile phenol, suspended solid, COD, ammonia nitrogen and sulphide reach 81.3%, 99.7%, 75.6% , 72.5%, 99.3% and 99.3% respectively. Based on this experiment, the original horizontal flow settling tank is renovated into an aeration biological fluid tank. After running for more than a year, it is concluded that the removal rates of petroleum, volatile phenol, suspended solid, COD, ammonia nitrogen and sulphide are 75% -88%, ≥199%, 34% -37%, 64% -85%, ≥199% and ≥99%, respectively. The water quality of effluent totally meets the class-Ⅰ criteria specified in Integrated Wastewater Discharge Standard （ GB 8978 - 1996）. The sludge yield is about 10 percent of the traditional treatment process.
出处
《中国给水排水》
CAS
CSCD
北大核心
2006年第11期31-34,共4页
China Water & Wastewater
关键词
曝气生物流化池
氨氮
高分子载体
acration biological fluid tank
ammonia nitrogen
macromolecular media
