Cov khoom siv dej khib nyiab sib xyaw yog siv thoob plaws hauv pretreatment, biochemical kev kho mob thiab qib kev kho mob siab heev rau cov dej phwj hauv nroog thiab cov chaw dej khib nyiab. Nws yog ib qho tseem ceeb rau kev ua tiav, kev kho kom zoo dua qub thiab ruaj khov effluent zoo. Nws cov haujlwm tseem ceeb npog dej homogenization, cov tshuaj tiv thaiv kev txhawb nqa, kev tswj cov sludge thiab cov txheej txheem stabilization thoob plaws hauv kev kho mob.
Ua ntej, nws homogenizes dej lub cev thiab tshem tawm cov chaw kho mob tuag. Tsis muaj kev ntxhov siab, dej khib nyiab tsim stratification ntawm concentration, kub thiab tshem tawm cov teeb meem. Cov khaubncaws sab nraud povtseg qhia cov pa phem tsawg thaum cov sludge thiab cov kab mob sib xyaw ua ke ntawm lub tank hauv qab. Cov cheeb tsam nyob ruaj khov tshwm sim thiab cuam tshuam kev kho mob sib xws. Cov khoom siv dej khib nyiab sib xyaw ua kom cov khoom ntws mus tas li kom tawg stratification. Uniform concentration, kub thiab dej zoo tau txais thoob plaws tag nrho lub tank. Cov kauj ruam tom ntej ua tiav tau txais cov xwm txheej zoo sib xws, zam cov dej tsis zoo los ntawm cov tshuaj tiv thaiv tsis sib xws thiab ua kom muaj kev ruaj ntseg hauv paus rau cov dej hauv qab.
Thib ob, nws txhawb nqa kev kho lub cev-tshuaj lom neeg los ntawm kev txhawb nqa tshuaj dispersion. Coagulants, flocculants, pH adjusters thiab lwm yam reagents yog dosed rau flocculation, neutralization thiab decolorization. Tsis muaj kev sib xyaw, cov tshuaj ntab los yog mloog zoo hauv zos es tsis txhob sib kis. Cov tshuaj tiv thaiv kev ua haujlwm poob qis heev, kev siv tshuaj lom neeg nce thiab ua tsis tiav flocculation tshwm sim. Kev ntxhov siab los ntawm cov khoom siv dej khib nyiab faib cov khoom ntxiv sai sai thoob plaws hauv lub tank ntim. Kev sib cuag tag nrho tshwm sim ntawm cov tshuaj, colloids, tshem tawm cov khib nyiab thiab cov khoom hnyav hlau los ua flocs. Flocculation-sedimentation efficiency yog txhim kho, reagent ntau npaum li cas yog optimized, kev khiav hauj lwm kev siv nyiaj txo thiab pretreatment purification tau zoo.
Thib peb, nws nres sludge nyob thiab compaction thiab stabilizes biochemical systems. Cov kev cai tso tsheb hlau luam, cov tso tsheb hlau luam anaerobic, cov tso tsheb hlau luam anoxic thiab cov tso tsheb hlau luam aerobic muaj cov activated sludge, microbial pejxeem thiab cov organic suspended solids. Sludge settles sai sai nyob rau hauv cov xwm txheej zoo li qub. Lub sij hawm ntev deposition forms compacted hauv qab khaubncaws sab nraud povtseg, thaiv cov raj xa dej thiab tua cov kab hauv qab-txheej microbes vim tsis muaj oxygen, muaj peev xwm ua rau cov kab mob biochemical. Cov khoom siv dej khib nyiab sib xyaw ua kom cov sludge raug tshem tawm thiab ntws. Cov kab mob microbes muaj kev sib cuag txaus nrog cov dej khib nyiab thiab cov pa oxygen, khaws cia kev ua haujlwm lom neeg. Kev degradation ntawm cov kuab paug organic, ammonia-nitrogen thiab tag nrho phosphorus yog ntxiv dag zog, thiab kev ua haujlwm ruaj khov biochemical txuas ntxiv yog lav.
Plaub, nws accelerates biochemical cov tshuaj tiv thaiv thiab huab hwm coj hloov mus rau nce tag nrho cov peev txheej. Nyob rau hauv anaerobic, anoxic thiab aerobic reactors, sib tov tsav cov dej ncig thiab txhim kho diffusion ntawm oxygen thiab as-ham. Cov xwm txheej zoo yog tsim rau microbial reproduction thiab metabolism, ua kom lub cev puas tsuaj ntawm cov pa phem. Nws kuj tseem pab txhawb kev sib pauv dej hauv cov tso tsheb hlau luam thiab ua kom lub sijhawm ua haujlwm hydraulic kom txo tau qhov muaj peev xwm. Nyob rau hauv vaj huam sib luag tso tsheb hlau luam, cov khoom siv dej khib nyiab sib xyaw ua kom muaj txiaj ntsig zoo thiab ntws tus nqi thiab buffers shock loads los ntawm kev siab ceev lossis cov dej ntim siab, tiv thaiv cov txheej txheem cuam tshuam.
Cov peev txheej ntxiv muaj xws li sludge blending, defoaming thiab solid dispersion kom haum cov txheej txheem sib txawv. Txawm hais tias categorized li auxiliary machinery, cov khoom siv dej khib nyiab sib xyaw koom nrog yuav luag txhua qhov kev kho dej khib nyiab. Nws exerts ncaj qha cuam tshuam rau kev kho mob efficiency, effluent stability thiab txheej txheem kev nyab xeeb thiab ua ib tug indispensable tivthaiv ntawm cov dej khib nyiab kho nroj tsuag.
