给水排水
給水排水
급수배수
Water & Wastewater Engineering
2015年
9期
9-13,14
,共6页
饮用水%臭氧预氧化%砂滤周期%水头损失%颗粒物%有机物去除
飲用水%臭氧預氧化%砂濾週期%水頭損失%顆粒物%有機物去除
음용수%취양예양화%사려주기%수두손실%과립물%유궤물거제
Drinking water%Ozone pre-oxidation%Sand filter cycle time%Head loss%Particle%Organic matter removal
利用中试系统研究了北方某水库水质条件下，较低投量的臭氧预氧化对常规饮用水处理工艺运行效果的影响。研究发现预臭氧的加入提高了常规工艺对 CODMn、UV254、三卤甲烷生成势(THMFP)的总去除率。同时，能够明显改善滤池过滤性能，低臭氧投量(≤1.0 mg/L)条件下，砂滤周期可从22 h 延长至48 h 左右，且投量0.5 mg/L 以下时，延长效率较高。预臭氧的加入强化了不同粒径范围内颗粒物在混凝沉淀、砂滤各工艺段的去除，是砂滤运行周期得到延长的原因。
利用中試繫統研究瞭北方某水庫水質條件下，較低投量的臭氧預氧化對常規飲用水處理工藝運行效果的影響。研究髮現預臭氧的加入提高瞭常規工藝對 CODMn、UV254、三滷甲烷生成勢(THMFP)的總去除率。同時，能夠明顯改善濾池過濾性能，低臭氧投量(≤1.0 mg/L)條件下，砂濾週期可從22 h 延長至48 h 左右，且投量0.5 mg/L 以下時，延長效率較高。預臭氧的加入彊化瞭不同粒徑範圍內顆粒物在混凝沉澱、砂濾各工藝段的去除，是砂濾運行週期得到延長的原因。
이용중시계통연구료북방모수고수질조건하，교저투량적취양예양화대상규음용수처리공예운행효과적영향。연구발현예취양적가입제고료상규공예대 CODMn、UV254、삼서갑완생성세(THMFP)적총거제솔。동시，능구명현개선려지과려성능，저취양투량(≤1.0 mg/L)조건하，사려주기가종22 h 연장지48 h 좌우，차투량0.5 mg/L 이하시，연장효솔교고。예취양적가입강화료불동립경범위내과립물재혼응침정、사려각공예단적거제，시사려운행주기득도연장적원인。
Through pilot study,this paper studied the impacts of low-dosage ozone pre-oxida-tion on conventional water treatment process with the raw water from a reservoir in north China. The results showed that ozone pre-oxidation improve the total removal on CODMn ,UV2 54 and THMFP of conventional water treatment process.Meanwhile,it could improve the performance of filter greatly.Under the condition of low ozone dosage (≤1.0 mg/L),the filter cycle time could increase from 22 hours to 48 hours;in addition,if the dosage of ozone was below 0.5 mg/L,the cycle time extension would be longer.The ozone pre-oxidation could enhance the removal of parti-cles with different diameters in coagulation-sedimentation and sand filter,which might be the rea-son for sand filter cycle time extension.
