摘要
对接种市政消化污泥的膨胀颗粒污泥床(EGSB)反应器的启动及启动成功后在35℃和15℃时的运行特性进行了研究。结果表明:EGSB 反应器采用低进水 COD、高有机负荷方式,46 d 快速启动成功;在35℃、HRT 为3.4 h、液体上升流速为2.80 m/h 的条件下,COD 去除率均能保持在90.0%以上;温度在进水 COD 为450 mg/L 左右时对 COD 去除率影响不明显,但在1 700 mg/L 左右时影响明显;EGSB 反应器能在15℃的低温条件下稳定高效运行;在短时间内经历15℃→50℃→15℃的温度冲击和4.32 kg/(m^3·d)到15.50 kg/(m^3·d)的负荷冲击后能在8 d 和14 d 内快速恢复;经历35℃→17℃→35℃的温度冲击后,COD 去除率的恢复没有出现滞后期。
The start-up of expended granular sludge blanket （EGSB） reactor seeded with municipal digestion sludge and its operation at 35 ℃ and 15 ℃ were investigated. The results show that： The EGSB reactor can be successfully started up within 46 d with low influent COD and high organic load; At 35 ℃ operation, the COD removal rate is kept above 90.0% under the conditions of HRT 3.4 h and Vup 2.80 m/h; The temperature of the influent with COD about 450 mg/L has not distinct effects on COD removal, but has significant effects when the influent COD is about 1 700 mg/L; The EGSB reactor can operate stably and with high efficiency at 15 ℃, and it can resume quickly within 8 d and 14 d after shocked at short period by the temperature of 15 ℃→50 ℃→15 ℃ and the load of 4.32 - 15.50 kg/（m^3 · d）; The EGSB reactor can recover quickly after shocked by the temperature of 35 ℃→17 ℃→35℃ without lag.
出处
《化工环保》
CAS
CSCD
北大核心
2008年第6期478-481,共4页
Environmental Protection of Chemical Industry
基金
山西省科技攻关项目(2007031101-1)
山西省高校科技发展项目(20071097)
太原市科技发展计划项目(07021003)
关键词
膨胀颗粒污泥床反应器
啤酒废水
中温
低温
运行特性
expended granular sludge blanket reactor
brewery wastewater
medium temperature
low temperature
performance characteristic
