摘要
研究了双循环两相生物处理（BICT）工艺中厌氧生物选择器的停留时间、污泥浓度和碳磷比等运行参数对选择器厌氧释磷的影响。结果表明，系统通过污泥转移保持厌氧生物选择器中较高的污泥浓度，从而提高了污泥的释磷水平、强化了系统的除磷能力。当厌氧生物选择器的停留时间为1h、系统泥龄为5d时，厌氧生物选择器的释磷效果最优。此外，运行过程中污泥的沉降性能良好，SVI值一直保持在80～120mL／g。
The effects of operational parameters such as hydraulic concentration and carbon/phosphorus ratio in bi-cyclic two-phase （BICT） retention time （HRT）, sludge biological process anaerobic phosphorus release in the anaerobic biological selector were investigated. The results show that the higher sludge concentration in the anaerobic biological selector is kept through transferring sludge to improve the phosphorus release level and enhance the phosphorus removal capacity. When HRT is 1 h, and SRT is 5 d, the anaerobic biological selector has the best phosphorus release efficiency. Additionally, the SVI value remains at 80 to 120 mL/g, which shows that sludge has a good settleability.
出处
《中国给水排水》
CAS
CSCD
北大核心
2010年第23期94-97,共4页
China Water & Wastewater
基金
江苏省太湖污染源治理专项关键技术攻关项目(BS2007109)
江苏省高校自然科学基金资助项目(08KJD610002)
苏州科技学院环境工程重点学科基础研究项目(A0030801)
关键词
BICT工艺
厌氧生物选择器
释磷
污泥沉降性能
bi-cyclic two-phase （BICT） biological process
anaerobic biological selector
phosphorus release
sludge settleability
