Pond Bio Lim Muag

Cov tsos mob txawv txav

Kev tshuaj xyuas thiab kev kuaj mob

kev daws teeb meem

Lub aeration tank yog tsw

Cov pa oxygen nyob rau hauv lub aeration tank tsis txaus, DO tus nqi qis, thiab ammonia nitrogen nyob rau hauv cov effluent yog qee zaum siab.

Ua kom cov pa oxygen kom ua rau DO loj concentration ntawm lub aeration tank siab tshaj 2mg / L

Dub sludge

Yog hais tias DO ntawm lub aeration tank tsawg dhau lawm, anaerobic decomposition ntawm cov organic teeb meem tso tawm H2S, uas reacts nrog Fe los ua FeS.

Ua kom cov pa oxygen los yog nce cov sludge rov qab

Sludge whitening

Cov kab mob filamentous los yog sessile ciliates multiply

Yog tias muaj sludge o, xa mus rau o tiv thaiv kev tiv thaiv rau lwm cov tsos mob

Tus nqi pH ntawm cov dej nkag yog tsawg dhau, pH ntawm lub aeration tank yog<6, and a large number of filamentous molds are formed

Ua kom cov pH ntawm cov dej pub

Ib qho loj ntawm cov sludge dub ntab mus rau hauv lub tank sedimentation

Ib nrab av nkos nyob rau hauv lub tank sedimentation yog anaerobic, tsim methane thiab CO2, thiab huab cua npuas yog txuas nrog cov av nkos kom ntab saum toj no.

Tiv thaiv qhov chaw tuag hauv lub tank sedimentation, yaug thiab ntxuav nrog cov cua compressed hauv qhov chaw tuag tom qab cov av nkos tawm

Cov av nkos theem ntawm lub tank thib ob yog tsa, thawj cov dej ntws tawm yog qhov tseeb tshwj xeeb, thiab cov sludge overflows nyob rau hauv cov khaubncaws sab nraud povtseg thaum ntws loj.

SV>90%, SVI>200mL / s, cov kab mob filamentous yog cov tseem ceeb hauv cov sludge, thiab cov sludge swells

Cov txheej txheem tshuaj xws li ntxiv cov kua chlorine, sodium hypochlorite, thiab nce pH los tua cov kab mob filamentous; ntxiv granular charcoal, av nplaum, nitrified sludge thiab lwm yam activated sludge "hnyav tus neeg sawv cev" kom DO; interstitial dej ingress

Cov av nkos ntawm lub pas dej thib ob yog siab dhau lawm

Cov kab mob filamentous tsis tau loj hlob ntau dhau, thiab MLSS tus nqi siab dhau lawm

Ua kom cov av nkos tawm

Kev sib sau ntawm deflocculated sludge txheej rau ntawm qhov chaw ntawm theem nrab sedimentation tank

Cov tsiaj micro-tsiaj tuag, cov sludge deflocculates, cov dej effluent deteriorates, cov COD thiab BOD nce, peb cov nyob deb tshaj 8mg02/(gVSS·h), cov concentration ntawm cov tshuaj lom nyob rau hauv lub influent dej yog siab dhau los yog pH. tus nqi yog txawv txav

Tsis txhob haus dej thiab ntxiv cov as-ham tom qab cov sludge tawm. Nws muaj peev xwm ua kom paub cov dej phwj hauv tsev kom rov ua kom rov zoo los yog qhia cov kab mob sludge tshiab

Muaj cov sludge zoo ntab tawm sab nraud hauv lub tank thib ob

Cov sludge tsis muaj cov as-ham; cov ammonia nitrogen concentration nyob rau hauv lub influent yog siab, thiab C / N yog tsis tsim nyog; lub pas dej kub kub tshaj 40 degree; lub tis log ceev yog siab dhau los ua txhaum cov flocs

Add nutrients or introduce high BOD wastewater to make F/M>0.1, nres lub tank aeration

Lub supernatant ntawm lub thib ob sedimentation tank yog turbid, thiab cov effluent zoo tsis zoo

High sludge load, tsis tiav oxidation ntawm cov organic teeb meem

Txo cov dej ntws hauv, txo cov sludge tawm

Scum tshwm nyob rau saum npoo ntawm lub aeration tank, zoo li tuab porridge npog saum npoo

Kev loj hlob ntau dhau ntawm Nocardia lossis ciliates nyob rau hauv cov scum lossis cov ntsiab lus ntau dhau ntawm cov tshuaj ntxuav tes hauv cov dej muaj zog

Tshem tawm cov scum, zam cov scum txuas ntxiv mus rau hauv lub cev, thiab ua kom cov sludge tawm

Cov sludge tsis paub qab hau, flocs yog nyias, cov dej ntws yog turbid, thiab cov dej tsis zoo; muaj ntau yam me me flagellates

Qhov sib xyaw thiab concentration ntawm cov dej tau hloov ntau dhau, cov khoom noj khoom haus hauv cov dej khib nyiab tsis sib npaug lossis tsis txaus; cov dej khib nyiab muaj cov tshuaj lom los yog tus nqi pH tsis tsim nyog

Sib npaug qhov muaj pes tsawg leeg, concentration thiab khoom noj khoom haus ntawm cov dej khib nyiab, thiab tsim nyog ntxiv qhov tsis muaj cov as-ham

Teeb meem hauv sludge filtration

Sludge deflocculation

Pov tseg raws li qhov xwm txheej sib txawv

Cov ncuav mog qab zib sludge dewatering

Organic spoilage

Lub sijhawm pov tseg ntawm sludge

Tsis txaus ntxiv ntawm coagulant

Nce koob tshuaj

Ua npuas ncauj ntau dhau hauv aeration tank, xim dawb

Ntau dhau detergent nyob rau hauv dej

Tshem tawm defoamer

Lub aeration tank ua npuas ncauj tsis yooj yim tawg thiab nplaum

Lub peev xwm thauj khoom yog siab dhau thiab decomposition ntawm cov organic teeb meem tsis tiav

Txo cov load

Aeration tank npuas tshuaj yej los yog grey

Cov sludge yog aging, lub hnub nyoog sludge ntev dhau lawm, thiab cov sludge deflocculated yog txuas rau ua npuas ncauj

Ua kom cov av nkos tawm