Kev ntxub ntxaug Index ntawm MBBR muab tub lim
1. Adhesion ntawm biofilm
Biofilm adhesion muaj peev xwm - qhov taw qhia tseem ceeb tshaj plaws rau kev ntsuas qhov zoo ntawm cov fillers Biofouling npaum li cas=tiv thaiv thaj tsam (txog rau kev tsim thiab kev khiav hauj lwm lub xeev qauv ntawm lub muab tub lim) × biofouling npaum li cas rau ib chav tsev deg cheeb tsam (txog rau kev ua tau zoo ntawm lub filler)
2. Filler kev ua haujlwm
Filler kev ua tau zoo - qhov taw qhia tseem ceeb tshaj plaws rau kev ntsuas lub peev xwm biofouling ntawm fillers
(1) Nto khoom ntawm fillers
1. Nto qauv: Nws yog feem ntau ntseeg hais tias lub nto roughness yog loj thiab cov yeeb yaj duab dai ceev yog ceev.
2. Cov peev txheej saum npoo: Feem ntau, cov kab mob tsis zoo yuav raug them, thiab qhov chaw ntawm qhov muab tub lim yog qhov zoo, uas tsim nyog rau kev loj hlob ntawm microbial.
3. Hydrophilicity: Cov kab mob microorganisms yog hydrophilic hais, thiab cov muab tub lim yog hydrophilic thiab haum rau microbial kev loj hlob thiab kev ua yeeb yaj kiab.
(2) Kev ua haujlwm hydraulic
1. Porosity: Lub ntim nyob ntawm qhov muab tub lim, qhov porosity siab.
2. Cov duab thiab qhov loj me: cuam tshuam rau lub xeev ntws ntawm cov dej ntws thiab airflow.
(3) Fluidization zog: ntsig txog qhov ntom ntawm cov muab tub lim. Qhov ceev ntawm cov muab tub lim yuav tsum yog 0.97-1.03, thiab fluidization tuaj yeem ua tiav nrog me me aeration lossis agitation.
3. Kev txiav txim siab ntawm kev ua yeeb yaj kiab- dai kom loj hlob
Kev txiav txim los ntawm qhov muag liab qab:
Lub biofilm yog sib npaug ntawm qhov chaw ntawm tus cab kuj, thiab qhov ze dua nws mus rau saum npoo ntawm cov cab kuj, qhov denser nws yog, txwv tsis pub, qhov looser nws dhau los.
Microscopic kev txiav txim:
Lub biofilm muaj cov qauv ntom ntom thiab ntau hom kab mob. Tus naj npawb ntawm sessile ciliates, bellworms, thiab ceg worms feem ntau yog, thiab cov tsos ntawm ib tug me me ntawm cov rotifers thiab ua luam dej ciliates cim kev loj hlob ntawm biofilm.