摘要
以北京某污水处理厂二期工程A2/O工艺为例,结合现场调查及小试试验,研究了A2/O工艺中降低供氧能耗的可行性。研究表明,已建污水厂A2/O工艺存在2种可操作的节能方法:一是严格控制曝气池中的DO,将DO控制在2~3 mg/L,避免过度曝气造成浪费;二是通过工艺调节,把好氧前段变成缺氧区,减少曝气段的长度,这种方式能节约17.1%的曝气量,同时增加约13.6%的TN去除率。
The feasibility of saving energy for A^2/O processes was studied in a wastewater treatment plant located in Beijing by means of field investigation and lab-scale experiment. The results indicate that there are two operable ways to save energy in A^2/O processes. One is to control the DO strictly within 2 - 3 mg/L in aeration tank and to avoid over-aeration, the other is to shift the forepart of the aerated tank into anoxie tank, by which 17.1% of aeration could be reduced and about 13.6% of TN removal rate could be increased.
出处
《环境工程学报》
CAS
CSCD
北大核心
2009年第1期35-38,共4页
Chinese Journal of Environmental Engineering
基金
“十一五”国家科技支撑计划重点项目(2006BAC19B01-02)
