Flocculantinowanzonzi "industrial panacea", iyo ine mashandisirwo akasiyana-siyana. Senzira yekusimbisa kupatsanurwa kwemvura yakasimba mumunda wekurapa mvura, inogona kushandiswa kusimbisa kunaya kwemvura kwemvura yekutanga, kunaya kwemvura inoyerera uye kunaya kwemvura kwechipiri mushure mekushandiswa kwetsvina. Inogona zvakare kushandiswa pakurapa kwemvura yepamusoro kana kurapwa kwepamusoro kwetsvina. Mukurapa mvura, kazhinji pane zvimwe zvinhu zvinokanganisa kuvharika kwemvura (chiyero chemakemikari), zvinhu izvi zvakaoma, zvinosanganisira tembiricha yemvura, pH kukosha uye alkalinity, hunhu uye kuwanda kwetsvina mumvura, mamiriro ekuchengetedza mvura yekunze, nezvimwewo.
1. Kukanganiswa kwekupisa kwemvura
Kupisa kwemvura kunokanganisa zvakanyanya kushandiswa kwemishonga, uye kupisa kwemvura kushoma munguva yechando
ine simba guru pakushandiswa kwemishonga, izvo zvinowanzoita kuti pave nekuumbwa zvishoma nezvishoma kwemaflocs ane zvidimbu zvidiki uye zvakasununguka. Zvikonzero zvikuru ndeizvi:
Kunyungudika kwemacoagulants emunyu asina kugadzirwa mumuviri inyaya ye endothermic reaction, uye kunyungudika kwemacoagulants emvura ane tembiricha yakaderera kwakaoma.
Kusviba kwemvura inodziya zvishoma kwakakura, izvo zvinoderedza kufamba kweBrownian kwezvimedu zvisina kuchena mu
Zvinoderedza mukana wekurovera, izvo zvisingakonzere kusagadzikana uye kuungana kwecolloids uye zvinokanganisa kukura kweflocs.
Kana tembiricha yemvura yakaderera, mvura inoyerera muzvikamu zvecolloidal inowedzera, izvo zvinokanganisa kubatana kwezvikamu zvecolloidal, uye zvinokanganisawo simba rekunamatira pakati pezvikamu zvecolloidal.
Tembiricha yemvura ine chekuita ne pH yemvura. Kana tembiricha yemvura yakaderera, pH yemvura inowedzera, uye pH yakakodzera yekuomesesa ichawedzerawo. Saka, munguva yechando munzvimbo dzinotonhora, zvakaoma kuwana coagulation effect yakanaka kunyangwe coagulant yakawanda ikawedzerwa.
2. pH uye Alkalinity
pH value chiratidzo chekuti mvura ine acidic here kana kuti alkaline, kureva kuti, chiratidzo chehuwandu hweH+ mumvura. pH value yemvura isina kucheneswa inokanganisa zvakananga maitiro ehydrolysis e coagulant, kureva kuti, kana pH value yemvura isina kucheneswa iri mukati meimwe nzvimbo, coagulation effect inogona kuvimbiswa.
Kana coagulant yawedzerwa mumvura, huwandu hweH+ mumvura hunowedzera nekuda kwehydrolysis ye coagulant, izvo zvinoita kuti pH yemvura iderere uye zvinokanganisa hydrolysis. Kuti pH irambe iri mukati mehuwandu hwakakodzera, mvura inofanira kunge iine zvinhu zvealkaline zvakakwana kuti ideredze H+. Mvura yechisikigo ine mwero wakati wealkalinity (kazhinji HCO3-), iyo inogona kudzikamisa H+ inogadzirwa panguva yehydrolysis ye coagulant, uye ine buffering effect pa pH value. Kana alkalinity yemvura isina kubikwa isina kukwana kana coagulant yakawedzerwa zvakanyanya, pH yemvura inoderera zvakanyanya, ichiparadza coagulation effect.
3. Kukanganiswa kwehunhu uye kuwanda kwetsvina mumvura
Saizi yezvikamu uye kukwanisika kwekuchaja kweSS mumvura zvichakanganisa kugayiwa kwechinhu. Kazhinji, dhayamita yezvikamu idiki uye yakafanana, uye kugayiwa kwechinhu kwakaderera; huwandu hwezvikamu mumvura hwakaderera, uye mukana wekusangana kwezvikamu hudiki, izvo zvisina kunaka pakugayiwa kwechinhu; kana kuvhuvhuta kwakawanda, kuitira kuti colloid isagayiwe mumvura, kushandiswa kwemakemikari kunodiwa kuchawedzera zvakanyanya. Kana huwandu hwakawanda hwezvinhu zvipenyu mumvura, hunogona kunyudzwa nezvidimbu zvevhu, nokudaro huchichinja hunhu hwepamusoro hwezvikamu zvepakutanga zvecolloidal, zvichiita kuti zvikamu zvecolloidal zvigadzikane, izvo zvichakanganisa zvakanyanya kugayiwa kwechinhu. Panguva ino, oxidant inofanira kuwedzerwa mumvura kuti iparadze mhedzisiro yezvinhu zvipenyu, ivandudze mhedzisiro yekugayiwa kwechinhu.
Munyu wakanyungudutswa mumvura unogona kukanganisawo kuonda kwemvura. Semuenzaniso, kana paine huwandu hwakawanda hwecalcium nemagnesium ions mumvura yechisikigo, zvinoita kuti iome, nepo huwandu hwakawanda hweCl- husingaite kuti iome. Munguva yemafashamo, mvura ine hunyoro hwakawanda ine humus yakawanda inopinda muchirimwa nekuda kwekukweshwa kwemvura inonaya, uye chiyero che pre-chlorination ne coagulant chinowanzo shandiswa chakavakirwa pane izvi.
4. Kukanganiswa kwemamiriro ekunze ekuchengetedza mvura
Zvinhu zvakakosha pakuunganidzwa kwezvikamu zvecolloidal ndezvekukanganisa zvikamu zvecolloidal, uye kuita kuti zvikamu zvecolloidal zvisina kugadzikana zvibatane. Basa guru recoagulant nderekukanganisa zvikamu zvecolloidal, uye kuvhunduka kwekunze kwe hydraulic nderekuona kuti zvikamu zvecolloidal zvinogona kubata coagulant zvizere, kuitira kuti zvikamu zvecolloidal zvibatane kuti zvigadzire flocs.
Kuti zvidimbu zvecolloidal zvibatane zvizere necoagulant, coagulant inofanira kupararira nekukurumidza uye zvakaenzana munzvimbo dzese dzemvura mushure mekunge coagulant yaiswa mumvura, inozivikanwa se rapid mixing, iyo inodiwa mukati memasekonzi gumi kusvika makumi matatu uye isingapfuure maminetsi maviri.
5. Kukanganiswa kwemvura
Kuvhunduka kwemvura kunoreva kuvhunduka kwemvura nguva nenguva kana kuti kwete nguva nenguva kwemvura isina kucheneswa, iyo inongoerekana yachinja zvikuru. Kushandiswa kwemvura mumaguta emvura uye kugadziriswa kwehuwandu hwemvura yepamusoro kunokanganisa mvura inopinda muchirimwa, kunyanya panguva yekuwanda kwemvura muzhizha, izvo zvinoita kuti mvura inopinda muchirimwa ichinje zvikuru, zvichikonzera kugadziriswa kakawanda kwemuyero wemakemikari. Uye mhedzisiro yemvura mushure mekunyura haina kunaka zvakanyanya. Zvakakosha kuziva kuti shanduko iyi haiwedzere zvakananga. Mushure meizvozvo, nyatsocherechedza alum mutangi rekuita, kuitira kuti usaparadze mhedzisiro yekugwinya nekuda kwemuyero wakawandisa.
6. Flocculantmatanho ekuchengetedza
Kuwedzera kune zvinhu zvataurwa pamusoro apa, kunewo mamwe matanho ekuchengetedza mushonga, akadai sekuwedzera nguva dzekusanganisa mvura mudziva remvura, kuderedza kunaya kwemvura yemushonga, kugadzirisa mushonga, uye kuchengetedza kushandiswa kwemushonga.
Kana polyacrylamide ichida kuchengetedza mari yekushandisa, zvakakosha kusarudza modhi yakakodzera. Nheyo yacho ndeyekusarudza polyacrylamide ine mhedzisiro yakanaka yekurapa, inodhura haisi iyo inonyanya kunaka, uye usaedze kudhura kuti ukonzere mhedzisiro yakaipa yekurapa mvura yakasviba, asi kuwedzera mutengo. Sarudza mumiriri asingangoderedzi hunyoro hwetsvina chete, asiwo anoderedza huwandu hwemumiriri weyuniti. Ita kuyedza kweflocculation pamasampuli emishonga akapihwa, sarudza mhando mbiri kana nhatu dzemishonga dzine mhedzisiro yakanaka yekuedza, uye wobva waita kuyedza kwemuchina zvakateerana kuti uone mhedzisiro yekupedzisira yematope uye uone mhando yekupedzisira yemishonga.
Polyacrylamide inowanzova zvidimbu zvakasimba. Inofanira kugadzirwa mumvura ine mvura ine kunyunguduka kwakati. Kuwanda kwayo kunowanzova pakati pe0.1% ne0.3%. Kunyanya kuonda kana kutetepa kunokanganisa mhedzisiro, kutambisa mushonga, kuwedzera mutengo, uye kunyungudutsa granular polymerization. Mvura yechinhu inofanira kunge yakachena (senge mvura yepombi), kwete tsvina. Mvura patembiricha yemumba yakakwana, kazhinji hapana kudziyisa kunodiwa. Kana tembiricha yemvura iri pasi pe5 °C, kunyunguduka kunonoka, uye kumhanya kwekunyunguduka kunowedzera kana tembiricha yemvura ikawedzera. Asi pamusoro pe40 ℃ zvinokurumidzisa kuora kwepolymer uye zvinokanganisa kushandiswa kwayo. Kazhinji, mvura yepombi yakakodzera kugadzirira mhinduro dzepolymer. Asidhi yakasimba, alkali yakasimba, mvura ine munyu wakawanda haikodzeri kugadzirira.
Nyatsocherechedza nguva yekugadzika kwemushonga pakugadzirira mushonga, kuitira kuti mushonga ugone kunyungudutswa zvizere mumvura uye usaunganidzwe, zvikasadaro hauzongokonzere marara chete, asiwo kukanganisa kugadzirwa kwematope. Jira rekusefa nepaipi zvinogonawo kuvharika, zvichikonzera marara anodzokororwa. Kana zvagadzirwa kuita mhinduro, nguva yekuchengetedza inogumira. Kazhinji, kana huwandu hwemhinduro huri 0.1%, mhinduro yepolymer isiri yeanionic haifanirwe kudarika vhiki imwe, uye mhinduro yepolymer yecationic haifanirwe kudarika zuva rimwe chete.
Mushure mekugadzirira mushonga, panguva yekuushandisa, nyatsocherechedza kuchinja kwemhando yevhu uye kushanda kwevhu, uye gadzirisa chiyero chemushonga nenguva kuti uwane chiyero chiri nani chemushonga.
Mushonga unofanira kuchengetwa mudura rakaoma, uye bhegi remushonga rinofanira kuvharwa. Pakushandisa, shandisa zvakawanda sezvinobvira, uye vhara mushonga usingashandiswe kudzivirira hunyoro. Pakugadzirira mishonga, chenjerera kuti usagadzire zvakawanda sezvinobvira, uye mvura dzakaiswa kwenguva yakareba dzinonyungudika nyore nyore uye hadzichagoni kushandiswa.
Midziyo inoshanda zvakanaka, vashandi vane ruzivo rwemari, uye masevhisi ari nani ekutengesa mushure mekutengesa; Isu tiri mhuri huru yakabatana, chero ani zvake anogara nesangano anokoshesa "kubatana, kutsunga, kushivirira" kweQuotes forPolyacrylamideFlocculamide Anionic Cationic Nonionic Water Treatment Polyacrylamide, Tinogamuchira neushamwari shamwari dzinobva kumativi ese ehupenyu hwezuva nezuva kuti titsvage kushanda pamwe chete uye kuvaka mangwana akajeka uye akanaka.
Mari dzeChina Chemical and Waste Water Treatment, Nesimba rakawedzerwa uye chikwereti chakavimbika, tauya pano kuzoshandira vatengi vedu nekupa sevhisi yepamusoro-soro, uye tinotenda nerutsigiro rwenyu. Tichaedza kuchengetedza mukurumbira wedu mukuru semutengesi wezvinhu zvakanakisisa pasi rose. Kana muine mibvunzo kana makomendi, munofanirataura nesuzvakasununguka.
Nguva yekutumira: Mbudzi-04-2022