Flocculantinowanzonzi "industrial panacea", iyo ine huwandu hwakawanda hwekushandisa.Senzira yekusimbisa kupatsanurwa kwakasimba-yemvura mumunda wekurapa kwemvura, inogona kushandiswa kusimbisa iyo yekutanga kunaya kwetsvina, flotation kurapwa uye yechipiri kunaya mushure meiyo activated sludge nzira.Inogona zvakare kushandiswa kurapwa kwepamusoro kana kurapwa kwepamusoro kwetsvina.Mukurapa kwemvura, kazhinji pane zvimwe zvinhu zvinokanganisa coagulation mhedzisiro (dosage yemakemikari), izvi zvinhu zvakanyanya kuomarara, zvinosanganisira tembiricha yemvura, pH kukosha uye alkalinity, chimiro uye kuunganidzwa kwetsvina mumvura, kunze kwekuchengetedza mvura mamiriro, nezvimwe, nezvimwe. .
1. Pesvedzero yetembiricha yemvura
Tembiricha yemvura ine simba rakakura pakushandisa zvinodhaka, uye yakaderera tembiricha mvura munguva yechando
ine simba guru pakushandisa zvinodhaka, izvo zvinowanzoita kuti zvishoma nezvishoma kuumbwa kwemaflocs ane zvidimbu zvakanaka uye zvakasununguka.Zvikonzero zvikuru ndezvi:
Iyo hydrolysis ye inorganic munyu coagulants ndeye endothermic reaction, uye iyo hydrolysis yeyakadzika tembiricha yemvura coagulants yakaoma.
The viscosity yemvura yakadzika-yekupisa yakakura, iyo inoderedza kufamba kweBrownian kwezvimedu zvisina kuchena mu
iyo mvura uye inoderedza mukana wekudhumhana, izvo zvisingabatsiri kune destabilization uye aggregation ye colloids uye inokanganisa kukura kwe flocs.
Kana tembiricha yemvura yakadzikira, iyo hydration yecolloidal particles inowedzerwa, iyo inotadzisa kubatanidzwa kweiyo colloidal particles, uye inokanganisawo kusimba kwekunamatira pakati pecolloidal particles.
Kupisa kwemvura kunoenderana nepH yemvura.Kana tembiricha yemvura yadzikira, iyo pH kukosha kwemvura inowedzera, uye inoenderana yakakwana pH kukosha kweiyo coagulation ichawedzerawo.Naizvozvo, munguva yechando munzvimbo dzinotonhora, zvakaoma kuwana yakanaka coagulation mhedzisiro kunyangwe yakawanda coagulant yakawedzerwa.
2. pH uye Alkalinity
Iyo pH kukosha chiratidzo chekuti mvura ine acidic here kana alkaline, kureva, chiratidzo cheH + kusungwa mumvura.Iyo pH kukosha kwemvura yakasvibirira inokanganisa zvakananga hydrolysis reaction yeiyo coagulant, ndiko kuti, kana iyo pH kukosha kwemvura yakasvibirira iri mukati meimwe mhando, iyo coagulation mhedzisiro inogona kuvimbiswa.
Kana iyo coagulant ichiwedzerwa kumvura, huwandu hweH + mumvura hunowedzera nekuda kwe hydrolysis ye coagulant, iyo inokonzera pH kukosha kwemvura kudonha uye inotadzisa hydrolysis.Kuchengeta iyo pH mukati meiyo yakakwana renji, mvura inofanirwa kunge iine zvinhu zvealkaline zvakaringana kuti isaite iyo H+.Mvura yechisikigo ine imwe dhigirii yealkalinity (kazhinji HCO3-), iyo inogona kudzikamisa iyo H + inogadzirwa panguva ye hydrolysis ye coagulant, uye ine buffering mhedzisiro pa pH kukosha.Kana iyo alkalinity yemvura yakasviba isina kukwana kana iyo coagulant yakawedzera zvakanyanya, iyo pH kukosha kwemvura inodonha zvakanyanya, ichiparadza coagulation athari.
3. Pesvedzero yehunhu uye kuunganidzwa kwetsvina mumvura
Iyo particle size uye chargeability yeSS mumvura inozokanganisa coagulation mhedzisiro.Kazhinji kutaura, iyo chidimbu dhayamita idiki uye yakafanana, uye coagulation mhedzisiro haina kunaka;iyo particle concentration mumvura yakaderera, uye mukana wekupokana kwechidimbu idiki, izvo zvisina kunaka kune coagulation;apo turbidity yakakura, kuitira kuti igadzirise colloid mumvura, kushandiswa kwemakemikari kunodiwa kuchawedzera zvikuru.Kana huwandu hukuru hwehupenyu huripo mumvura, hunogona kushambadzirwa nevhu revhu, nokudaro kushandura maitiro epamusoro epakutanga colloidal particles, zvichiita kuti colloidal particles awedzere kugadzikana, izvo zvinokanganisa zvakanyanya coagulation effect.Panguva ino, oxidant inofanira kuwedzerwa kumvura kuti iparadze mhedzisiro ye organic matter, kuvandudza coagulation effect.
Yakanyungudika munyu mumvura inogonawo kukanganisa coagulation effect.Semuenzaniso, kana yakawanda ye calcium uye magnesium ions iripo mumvura yechisikigo, inobatsira kugadzikana, nepo huwandu hukuru hweCl- hahuna kukonzeresa coagulation.Munguva yemafashamo, mvura ine huturu hwakakura inopinda muchirimwa nekuda kwekutsvaira kwemvura inonaya, uye pre-chlorination uye coagulant dosage inowanzo shandiswa inobva pane izvi.
4. Pesvedzero yemamiriro ekunze ekuchengetedza mvura
Mamiriro ezvinhu akakosha ekuunganidzwa kwezvimedu zvecolloidal ndezvekuvhiringa zvimedu zvecolloidal, uye kuita kuti zvimedu zvisina kugadzikana zvidhumanane.Basa guru reiyo coagulant ndeyekuvhiringidza iyo colloidal particles, uye kunze kwe hydraulic agitation ndeyekuona kuti iyo colloidal particles inogona kunyatsobatana ne coagulant, kuitira kuti mapeji ecolloidal anopindirana kuti aite flocs.
Kuti iite kuti colloidal particles inyatsobatana ne coagulant, iyo coagulant inofanira kukurumidza uye yakaenzana yakapararira munzvimbo dzose dzemuviri wemvura mushure mokunge coagulant yaiswa mumvura, inowanzozivikanwa sekukurumidza kusanganiswa, iyo inodiwa mukati me10 kusvika ku30. masekonzi uye kwete kupfuura 2 maminitsi zvachose.
5. Pesvedzero yemvura inokanganisa mutoro
Kuvhundutsa kwemvura kunoreva kuvhunduka kwemvura yenguva nenguva kana isiri-periodic yemvura mbishi, iyo inongoerekana yashanduka zvikuru.Kushandiswa kwemvura yemumaguta kwezvivakwa zvemvura uye kugadziridzwa kwehuwandu hwemvura yekumusoro kuchakanganisa mvura inopinda muchirimwa, kunyanya padanho repamusoro rekupa mvura muzhizha, izvo zvinoita kuti mvura inopinda muchirimwa ichinje zvakanyanya, zvichikonzera kugadziridzwa kwedosi. chemakemikari.Uye mhedzisiro yemvura mushure mekunyura haina kunyatsonaka.Zvinokosha kucherechedza kuti kuchinja uku hakuwedzeri mutsara.Mushure meizvozvo, teerera kutarisa iyo alum mune rekuita tangi, kuti urege kuparadza iyo coagulation mhedzisiro nekuda kwekunyanyisa dosage.
6. Flocculantkuchengetedza matanho
Pamusoro pezvikonzero zviri pamusoro apa, kunewo mamwe matanho ekuchengetedza zvinodhaka, akadai sekuwedzera huwandu hwenguva dzekubvongodza mudziva remvura, kuderedza kunaya kwezvikamu zvakasimba zvemushonga, kudzikamisa mushonga, uye kuchengetedza kushandiswa kwezvinodhaka.
Kana polyacrylamide ichida kuchengetedza mari inoshandiswa, zvinodikanwa kusarudza iyo yakakodzera modhi.Nheyo ndeyekusarudza iyo polyacrylamide ine yakanakisa kurapwa maitiro, iyo inodhura haisi iyo yakanyanya kunaka, uye usaedze kuve yakachipa kukonzeresa kushomeka kwemvura yemarara, asi wedzera mutengo.Sarudza mumiririri asingangodzikisi hunyoro hwehutu, asi zvakare inoderedza kuyerwa kweiyo unit agent.Ita flocculation kuyedza pamasampuli emishonga akapihwa, sarudza mhando mbiri kana nhatu dzemishonga ine yakanaka yekuyedza mhedzisiro, uye wozoita bvunzo dzepa-muchina zvakateerana kuti uone mhedzisiro yematope uye uone mhando yekupedzisira yemishonga.
Polyacrylamide inowanzoita zvimedu zvakasimba.Inoda kugadzirirwa kuita aqueous solution ine kumwe kunyungudika.Iko kusungirirwa kunowanzo pakati pe0.1% uye 0.3%.Kunyanya kudzika kana kuonda zvakanyanya kuchakanganisa mhedzisiro, kutambisa mushonga, kuwedzera mutengo, uye kunyungudutsa granular polymerization.Mvura yechinhu chacho inofanira kuva yakachena (semvura yepombi), kwete tsvina.Mvura patembiricha yekamuri yakakwana, kazhinji hapana kudziyisa kunodiwa.Kana tembiricha yemvura yakadzikira kupfuura 5 ° C, kunyungudika kunononoka, uye kukurumidza kwekunyungudika kunokwidziridzwa kana tembiricha yemvura ichiwedzera.Asi pamusoro pe40 ℃ inomhanyisa kuderedzwa kwepolymer uye kukanganisa mashandisiro ekushandisa.Kazhinji, mvura yepombi yakakodzera kugadzirira polymer mhinduro.Asidhi yakasimba, alkali yakasimba, mvura yakawanda yemunyu haina kukodzera kugadzirira.
Chenjerera kunguva yekurapa mukugadzirira kwemumiririri, kuitira kuti mumiririri anogona kunyungudutswa mumvura uye kwete kusanganiswa, kana zvisina kudaro hazvizongokonzeresa marara, asiwo zvinokanganisa mhedzisiro yekugadzirwa kwematope.Iro jira resefa nepombi zvinogara zvakare kuvharika, zvichikonzera marara anodzokororwa.Kana yangogadzirwa kuva mhinduro, nguva yekuchengetedza ishoma.Kazhinji, kana mhinduro yekuisa 0.1%, iyo isiri-anionic polymer mhinduro haifanire kudarika vhiki imwe, uye iyo cationic polymer mhinduro haifanire kudarika zuva rimwe.
Mushure mekugadzirira kwemumiririri, panguva yekuita dosing, teerera kune shanduko yemhando yedhaka uye mhedzisiro yedhaka, uye gadzirisa dosage yemumiririri munguva kuti uwane iri nani dosing ratio.
Mushonga unofanirwa kuchengetwa mudura rakaoma, uye bhegi remishonga rinofanira kuvharwa.Mukushandiswa, shandisa zvakanyanya sezvinobvira, uye simbisa mushonga usina kushandiswa kudzivirira unyoro.Mukugadzirira kwemishonga, kutarisirwa kunofanira kutorwa kusagadzirisa zvakanyanya sezvinobvira, uye zvinwiwa zvakaiswa kwenguva yakareba zviri nyore hydrolyzed uye hazvichagoni kushandiswa.
Midziyo inofambiswa zvakanaka, vashandi vanowana mari, uye ari nani mushure mekutengesa masevhisi;Isu tiri zvakare mhuri huru yakabatana, chero munhu anogara nesangano anokoshesa "kubatana, kutsunga, kushivirira" kweQuots forPolyacrylamideFlocculamide Anionic Cationic Nonionic Mvura Kurapa Polyacrylamide, Tinogamuchira neushamwari shamwari dzinobva kumativi ese ehupenyu hwemazuva ese kuti vavhime kubatana pamwe uye kuvaka ramangwana rakajeka uye rinoyevedza." polyelectrolyte"
Quots yeChina Chemical uye Waste Water Treatment, Nesimba rakawedzera uye nechikwereti chakavimbika, tanga tiri pano kushandira vatengi vedu nekupa iyo yepamusoro mhando uye sevhisi, uye isu tinotenda nemoyo wese rutsigiro rwenyu.Isu tichaedza kuchengetedza mukurumbira wedu mukuru semutengesi wepamusoro wekutengesa munyika.Kana uine chero mibvunzo kana mhinduro, unofanirwataura nesupachena.
Nguva yekutumira: Nov-04-2022