Ntawm sludge
Kev faib tawm los ntawm Source: Sedimentation (flotation) sludge, kev kho mob biological;
Kev faib tawm los ntawm nws yog zom lossis tsis: Digested sludge (paub tab sludge), sludge nyoos (tshiab sludge);
Kev faib tawm los ntawm kev sib xyaw: organic sludge, inorganic sludge;
Qhov sib xyaw sludge tsim los ntawm kev kho cov dej phwj tuaj thiab tsw yooj yim, muaj cov khoom noj muaj txiaj ntsig zoo, muaj cov ntsiab lus me me, cov dej muaj txiaj ntsig thiab tsis yooj yim rau lub kaum ntswj.
Daim ntawv thov ntawm sludge nrog cov ntsiab lus txawv noo
Thaum lub sludge ya raws cov ntsiab lus yog 10%, nws yooj yim rau khw thiab thauj. Txawm hais tias muaj cov kab mob nquag hauv sludge, lawv feem ntau tsis tshuab, cov kab mob, fungi hauv huab cua thiab cov me nyuam siv cov as-ham hauv sludge. Nyob rau tib lub sijhawm, txo qis cov dej noo cov ntsiab lus ntawm sludge, lub siab dua nws cov cua sov.
Raws li rau qhov yuav tsum tau 50% rau kev ua kom muaj zog, nws yog vim tias cov cua sov yuav tsum tau muab los ntawm kev hlawv cov organic nyob rau hauv qhov seem ib nrab ntawm qhov sludge yooj yim. Nyob rau tib lub sijhawm, lub sludge nrog dej cov ntsiab lus ntawm 50% yog qhov yooj yim rau tawg thiab yog ua kom zoo rau kev sib txuas. Nws yuav tsum raug sau tseg tias qhov sludge nrog dej cov ntsiab lus ntawm 50% tsuas yog ib qho kev mob tsawg kawg nkaus xwb.
Thaum sludge nrog cov ntsiab lus noo ntawm 60% yog cov av noo, nws lub zog tuaj yeem ua tau raws li cov kev xav tau thiab tsis yooj yim ua ib lub hav iav. Thib ob, thaum sludge nrog cov ntsiab lus noo ntawm 80% tau hloov dua siab tshiab rau hauv 60%, nws qhov hnyav ntawm cov av noo, txuas lub neej ntawm cov khib nyiab.
Kev siv ntawm 60% cov ntsiab lus noo noo sludge rau kev ua liaj ua teb (xa mus rau kev tsim kho thiab kev ua haujlwm ntawm kev loj hlob ntawm cov kab mob me me thaum lub sij hawm sludge fermentation. Peb paub tias qhov no yog feem ntau yog kub thiab noo. Thaum lub sij hawm aerobic fermentation, seb huab cua puas tuaj yeem muab rau sludge (lub porosity ntawm sludge thiab lub suab sib piv ntawm cov pawg sludge). Cov kab mob sib txawv siv cov qauv sib txawv ntawm cov txheej txheem sib txawv nrog cov organic zoo sib xws, thiab cov kev ua kom zoo nkauj sludge yaam yuav tsum tsis zoo ib yam li, feem ntau qis dua 60%; Tab sis nws yog los ntawm tsis muaj txhais tau tias qis dua qhov zoo dua. Tsis tas li ntawd, thaum lub sij hawm aerobic fermentation, cov ntsiab lus ya raws noo yog 60%, uas tau dhau los ua cov khoom khov thiab yooj yim dua rau huab cua nkag mus.