Kev kho mob ntawm kev kub ceev ion flotation

1.Dissolved gas siab: Qhov luaj li cas ntawm cov roj yaj siab txiav txim siab qhov loj ntawm npuas. Qhov siab dua, qhov me dua qhov npuas loj. Txawm li cas los xij, thaum lub siab siab tshaj ib qho nqi (xws li 0.44 MPa), txoj kab uas hla ntawm cov npuas thiab cov roj uas tsim tawm tsis hloov ntau. Yog tias cov npuas me me dhau lawm, cov npuas uas xav tau rau cov khoom hauv cov dej kom ntab yuav nce ntxiv, uas ua rau muaj qhov nyuaj ntawm cov npuas adhering rau flocs thiab tsis yog qhov zoo rau cov ntab ntawm cov khoom. Yog tias cov npuas loj dhau lawm, txawm hais tias cov khoom loj loj tuaj yeem ntes tau yooj yim, cov npuas nce nrawm heev, uas tsis tsim nyog rau kev sib txuas ntawm cov khoom me me, thiab cov npuas loj tuaj yeem tawg yooj yim thaum lub sij hawm nce, tag nrho cov uas muaj qhov tsis zoo. cuam ​​tshuam rau cov nyhuv flotation.

2. Ntxiv cov tshuaj: Polyaluminium chloride (PAC): Yog tias qhov ntau npaum li cas, cov tshuaj yuav ua raws li cov khoom me me heev, ua rau cov flocs uas yuav tsum tau flocculated rau hauv cov loj yuav ntau thiab me. Nyob rau tib lub sijhawm, cov destabilized particles yuav stabilized dua, uas tsis haum rau ntab, ua rau cov nyhuv flotation tsis zoo thiab pov tseg ntawm cov tshuaj. Yog tias qhov ntau npaum li cas tsawg dhau, lub peev xwm flocculation ntawm cov tshuaj tsis txaus, qhov nyiaj ntawm flocs me me, thiab qhov ntim me me, uas tsis zoo rau kev kho flotation.

3. Polyacrylamide (PAM): Nws muaj cov khoom flocculation siab, tab sis kev ntxiv ntau dhau yuav ua rau cov colloid ruaj khov thiab tsis flocculate, thiab ua rau cov khoom pov tseg ntawm cov reagents; ntxiv me ntsis yuav tsis ua rau lub ntim ntawm flocs ncav cuag qhov zoo tagnrho cov nyhuv, cuam tshuam cov dej tso zis ntawm flotation.

Lub sijhawm nyob hauv: Lub sijhawm nyob ntev yog qhov tseem ceeb los xyuas kom meej qhov zoo ntawm flotation effluent. Lub sijhawm nyob luv luv yuav ua rau lub sijhawm ntab tsis txaus rau cov flocs, ua rau lawv ntws tawm raws cov dej ntws, ua rau cov flotation effluent uas muaj cov khoom raug tshem tawm; Nyob rau tib lub sijhawm, tus neeg sawv cev tsis tuaj yeem ua tiav nws lub luag haujlwm, thiab cov khoom tsis tuaj yeem ua kom tag nrho flocculated, uas tsis zoo rau flotation effluent. Tom qab flocculation kuj tuaj yeem tshwm sim, ua rau tus neeg saib xyuas tsis zoo nkag mus rau hauv lub pas dej biochemical tom ntej los tsim cov sludge, cuam tshuam rau kev kho mob lom.

4.Flocculant yam ntxwv: Txoj kev npuas ua ke nrog floccules thiab particle monomers thaum lub sij hawm flotation, nrog rau lub zog ntawm entrainment thiab adhesion ntawm lawv, muaj feem xyuam rau cov duab ntawm hais thiab floccules, thiab muaj feem xyuam rau cov khoom ntawm cov dej. , huab cua, thiab particle peb-theem interface. Piv txwv li, cov ntsiab lus ntawm surfactants nyob rau hauv dej, hardness ntawm dej, qhov concentration ntawm suspended teeb meem, thiab lwm yam, yog tag nrho cov nyob ze rau lub nplaum flotation zog ntawm npuas.

5.Microbubble nto yam ntxwv: Feem ntau, microbubbles hauv dej nyiam adsorb qee yam tsis zoo ions thiab nqa cov nqi tsis zoo. Lawv lub peev xwm saum npoo yog qhov muaj txiaj ntsig tsis zoo, thiab thaum lawv nyob ze rau ib leeg, yuav muaj electrostatic repulsion nrog lub peev xwm ntawm flocculent hais, uas feem ntau yog qhov tsis zoo, uas muaj kev cuam tshuam tsis zoo rau kev sib tsoo thiab adhesion txheej txheem. Qhov zoo ntawm cov dej nyoos thiab hom thiab qhov ntau ntawm adsorbed ions yuav ua rau muaj qhov sib txawv ntawm lub zog microbubble, deg hydrophobicity thiab hluav taws xob, uas yuav cuam tshuam rau cov nyhuv flotation. Cov yam ntxwv ntawm microbubbles tuaj yeem hloov pauv los ntawm kev ntxiv cov electrolytes rau hauv dej.

6.Sewage flow rate: Cov kev hloov ntawm cov dej phwj tuaj yeem txhais tau tias kev hloov pauv ntawm cov pa phem. Thaum lub sijhawm ua haujlwm ntawm cov khoom siv flotation, yog tias tus nqi ntws loj dhau lawm, txoj kab rov tav ntws nrawm ntawm lub flotation tank yuav nce, lub sij hawm nyob hauv yuav luv luv, uas tsis zoo rau kev sib cais ntawm cov flocs. Tsis tas li ntawd, tus nqi ntws siab dhau lawm yuav ua rau muaj kev kub ntxhov ntau dhau ntawm thaj chaw sib cais, uas ua rau tawg ntawm cov npuas dej-flocculation ua ke. Yog tias tus nqi ntws tsawg dhau, nws yuav tsis ua raws li cov kev cai kho mob. Yog li ntawd, nws yog ib qho tsim nyog yuav tau kho qhov ntau npaum li cas ntawm cov reagent nyob rau hauv lub sij hawm raws li cov dej phwj ntws npaum li cas los xyuas kom meej qhov kev kho mob nyhuv.

7.Releaser condition: Yog hais tias lub tso tawm raug thaiv, cov npuas loj yuav tshwm sim nyob rau hauv cov huab cua flotation tiv tauj cheeb tsam, rhuav tshem cov nplaum cua flotation thiab cuam tshuam cov scum, ua rau cov scum poob stability, ua rau turbidity ntawm cov dej uas tsim thiab cuam tshuam rau kev kho mob. nyhuv.

8. Scraping ua haujlwm: Yog hais tias lub scraper txav ceev heev thaum lub sij hawm scraping, lub qis txheej ntawm slag yuav sheared thiab tawg, thiab turbulent flow yuav tshwm sim, thiab cov slag yuav tawm nrog dej; Yog hais tias lub slag tsis scraped nyob rau hauv lub sij hawm thiab muaj av nkos heev nyob rau hauv qab, cov nyhuv flotation yuav tsis zoo. Qhov zaus ntawm scraping yog cuam tshuam nrog lub thickness ntawm slag floating ntawm lub flotation. Yog hais tias lub thickness yog siab dhau lawm, lub sludge fluidity yuav deteriorate, clogging lub sludge paug yeeb nkab, thiab cov sludge concentration nyob rau hauv lub tom ntej no sludge pas dej ua ke yuav siab dhau heev lawm thiab viscosity yuav nce, ua rau nws nyuaj rau nqa. Ntau dhau ntawm SLAG yuav ua rau muaj qhov sib txawv tag nrho, ua rau nws nyuaj rau cais cov av nkos thiab dej, thiab cuam tshuam rau cov dej effluent zoo.