CAJ | 학술논문

改变传统固定床过滤装置的间歇操作，降低过程能耗，集清洗洗涤器、三相分离器及滤料“反粒径”分布三项技术，开发了一种新型颗粒移动床连续过滤装置，讨论进气速率、清洗水速率以及移动床滤层更新速率之间的相互关系，探讨最佳运行条件．结果表明：进气速率和清洗水速率要有合适的比例才能保证装置稳定运行，连续操作的最佳气水体积比为7～12，此时移动床滤层更新速率很快，滤料循环最小周期只需12,min；滤料由进水口到出水口粒径呈现由大到小的“反粒径”自然分布；随着处理负荷的增加，移动床比固定床有更好的出水水质；水力停留时间和进水浓度对出水效果和去除率具有很大的影响，浊度和化学需氧量的去除率最高可达88.89%和83.48%．
개변전통고정상과려장치적간헐조작，강저과정능모，집청세세조기、삼상분리기급려료“반립경”분포삼항기술，개발료일충신형과립이동상련속과려장치，토론진기속솔、청세수속솔이급이동상려층경신속솔지간적상호관계，탐토최가운행조건．결과표명：진기속솔화청세수속솔요유합괄적비례재능보증장치은정운행，련속조작적최가기수체적비위7～12，차시이동상려층경신속솔흔쾌，려료순배최소주기지수12,min；려료유진수구도출수구립경정현유대도소적“반립경”자연분포；수착처리부하적증가，이동상비고정상유경호적출수수질；수력정류시간화진수농도대출수효과화거제솔구유흔대적영향，탁도화화학수양량적거제솔최고가체88.89%화83.48%．
In order to change the intermittent operation of the traditional fixed bed and reduce energy consumption,a new continuous filtration device with the particle moving bed was developed by integrating cleaning scrubbers,a three-phase separator and the filter“anti-particle size distribution”method. The relationship between the intake rate,the cleaning water rate and the updating rate of the moving bed filter layer were discussed,and the best operating conditions were explored. The results show that the intake rate and wash water rate should have an appropriate ratio in order to ensure the stable operation of the device.When the ratio of gas volume to water volume is 7 to 12,the continuous operation condition is best,and at this time,the moving bed filter layer updates fast.The filter cycle period only needs 12,min. The filter aranges particles in anti-particle size natural distribution,so the particle size decreases from the inlet port to the outlet port. With the increase of proc-essing load,the moving bed has better effluent quality than the fixed bed. HRT and the influent concentration have a great effect on the effluent quality and removal rate.The removing rate of turbidity and COD can reach as high as 88.89% and 83.48%respectively.