Sludge Density Index yog ib qho ntawm cov cim tseem ceeb los ntsuas qhov cuam tshuam ntawm rov qab osmosis system, thiab nws tseem yog lub ntsiab lus tseem ceeb los xyuas seb cov dej ntws tawm ntawm cov txheej txheem pretreatment puas ua tau raws li qhov yuav tsum tau ua ntawm rov qab osmosis influent. Nws qhov loj me yog qhov tseem ceeb rau lub neej ua haujlwm ntawm qhov rov qab osmosis system. Nws characterizes cov ntsiab lus ntawm hais, colloids thiab lwm yam khoom nyob rau hauv cov dej uas yuav thaiv tau ntau yam dej purification khoom. Los ntawm kev ntsuas tus nqi SDI, cov cuab yeej siv dej huv los yog cov cuab yeej siv tau raug xaiv.
