摘要
针对碳、氮、磷比例失调碳源偏低城市污水,因碳源不足而降低脱氮除磷效率的难题及连续流生物膜法除磷率低的缺点,为提高生物膜的除磷效率,通过构建厌氧/好氧交替运行的序批式生物膜反应器(SBBR),合理调控厌氧和好氧段的运行时间,处理广州地区碳源偏低的城市污水,研究其生物除磷的效果和控制影响因素。结果显示,在无需额外添加碳源的条件下,当进水TP浓度为1.65～7.10mg/L,出水TP浓度可在0.085～0.5mg/L之间,去除率达到90%以上。在此基础上,对SBBR的厌氧和好氧段的工艺特性及控制影响因素进行系统分析,指出厌氧/好氧交替运行的工序是SBBR处理城市污水高效除磷的前提和基础,而确保厌氧磷的最大有效释放是SBBR系统高效除磷的关键。
Through establishing a sequencing batch biofilm reactor（SBBR） to heighgten the phosphorus removal rate, the low carbon municipal sewage was treated. The results showed that, under the condition without carbon dosage and when influent TP concentration was 1.65-7.10mg/L,the effluent TP concentration was within 0.080-0.5mg/L, removal rate reached to over 90%. On the basis of this, the technological characteristics and the affecting factors of SBBR anaerobic and aerobic sections were analysed systematically; it is pointed out that the working procedure of anaerobic/aerobic alternating operation is the premise and basis of highly effective phosphorus removal for municipal sewage treatment by SBBR while ensuring maximum and effective release of anaerobic phosphorus is the key of highly effective phosphorus removal by SBBR system.
出处
《水处理技术》
CAS
CSCD
北大核心
2006年第12期31-35,共5页
Technology of Water Treatment
关键词
序批式生物膜
生物除磷
低碳城市污水
sequencing batch biofilm reactor （SBBR）
biological phosphorus removal
low carbon municipal wastewater
