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Iimbangela kunye nokuThintela ukuHamba koLudaka kuShishino lokuCocwa koGutyulo
2024-08-20 15:43:28
Ngokuphuculwa okuqhubekayo kunye nophuhliso lwenkqubo ye-sludge esebenzayo, amava olawulo okusebenza aphuculwe kakhulu. Nangona kunjalo, ekusebenzeni kwangempela kweshishini lokucocwa kwamanzi amdaka, ukuchithwa kwe-sludge kaninzi kwenzeka, kuchaphazela kakhulu ubungakanani kunye nomgangatho wamanzi acociweyo. Ke ngoko, kubalulekile ukuqonda izizathu zokugcwala kodaka kunye nemilinganiselo ehambelana nayo yokuyicombulula kwangaphambili.
I-sludge bulking yenye yezinto ezingaqhelekanga ezenzeka ngexesha lokusebenza kwenkqubo ye-sludge esebenzayo. Ngenxa yezizathu ezithile, ukusebenza kwentlenge koludaka olusebenzayo luwohloka, nto leyo ekhokelela ekwahlukaneni kakubi namanzi odaka, izinto eziqinileyo ezinqunyanyiswe ngokungaqhelekanga kumdaka, kunye nokutshatyalaliswa kwenkqubo yonyango. Le nto idla ngokuhambelana nokukhula kunye ne-metabolism ye-microorganisms. Ngokukodwa, inokwahlulwa ibe ziindidi ezimbini eziphambili: i-filamentous sludge bulking kunye ne-non-filamentous sludge bulking. I-Filamentous sludge bulking ibangelwa ikakhulu kukukhula okugqithisileyo kwebhaktheriya ene-filamentous, ekhokelela kwisakhiwo sodaka oluxekethileyo, ukwanda komthamo, ukudada, kunye nobunzima bokwenza intlenga kunye nokwahlula, okuchaphazela umgangatho wamanzi amdaka. I-sludge bulking engekho-filamentous ibangelwa ukuqokelela kwe-metabolites (i-polysaccharides ephezulu-viscosity). Le nto ye-viscosity ephezulu igubungela i-microorganisms kwi-sludge esebenzayo, ngokubanzi ngendlela yejeli, eyenza ukuchithwa kunye nokusebenza koxinzelelo lwe-sludge kubi nakakhulu.
1. Izinto ezibangela ukugcwala kodaka
Kukho izizathu ezininzi zokwandiswa kwe-sludge: ichaphazelekayo yizinto ezifana nokutshintsha kwamacandelo omgangatho wamanzi we-influent, utshintsho kwixabiso le-pH, utshintsho kwiqondo lokushisa, utshintsho kwizondlo, kunye noshintsho olufana nokungcola. Kwinqanaba lokuqala lokwandiswa, i-sludge index (SVI) iya kuqhubeka nokunyuka, isakhiwo se-sludge siya kukhululeka kwaye umthamo omkhulu we-sludge uya kudada, umphumo wokuhlukana kwamanzi odaka luya kuba lubi, kwaye amanzi amdaka aya kuba ne-turbid. . Ngeli xesha, ingqalelo kufuneka ihlawulwe kwaye uphando kufuneka lwenziwe ngokukhawuleza ukufumana isizathu sokwandiswa.
Umzobo.1: Imeko ye-sludge bulking
Umzobo.2: Imeko eqhelekileyo
2. Amanyathelo okuThintela ukuSombulula ukuHamba koLudaka
Amanyathelo angxamisekileyo abandakanya ukuqinisa ukubeka iliso komgangatho ochaphazelekayo kunye nokungcola, ukulungelelanisa inkqubo yokusebenza, ukongeza i-agent agents, ukwandisa inani le-sludge ekhutshweyo, kunye nokunciphisa i-sludge concentration:
(1) Ukubeka iliso rhoqo kwiiparitha ezahlukeneyo kwinkqubo yogutyulo: njengesalathiso se-sludge (SVI), i-oxygen echithwe, ixabiso le-pH, njl.;
(2) Ngokweziphumo zokubeka iliso, lungisa iimeko zokusebenza ezifana ne-aeration kunye nokongeza izondlo ukudala indawo ekulungele ukukhula kwe-microorganisms.
(3) Yongeza iimali ezifanelekileyo zeekhemikhali, ezifana ne-flocculants kunye ne-bactericides, ukulawula ukukhula kweebhaktheriya ezinomlilo okanye ukuphucula ukusebenza kwe-sedimentation ye-sludge;
(4) Ngokunyusa inani le-sludge ekhutshweyo, kunye nokususa iibhaktheriya ezigqithisiweyo ze-filamentous, kunceda ukubuyisela ukusebenza okuqhelekileyo kwe-sedimentation ye-sludge.
Ngokusebenzisa le milinganiselo ingentla, ingxaki ye-sludge bulking ingasombululwa ngokufanelekileyo kwaye umphumo kunye nokusebenza kakuhle kokucocwa kwamanzi amdaka kunokuqinisekiswa.