Polyaluminium chloride:PAC luv luv, tseem hu ua yooj yim aluminium chloride lossis hydroxyl aluminium chloride.
Txoj Cai:los ntawm cov khoom siv hydrolysis ntawm polyaluminum chloride los yog polyaluminum chloride, cov nag lossis daus colloidal hauv cov dej phwj tuaj lossis cov sludge yog tsim sai, uas yooj yim rau cais cov khoom loj ntawm precipitate.Kev ua tau zoo:Cov tsos thiab kev ua tau zoo ntawm PAC muaj feem xyuam rau alkalinity, kev npaj, impurity muaj pes tsawg leeg thiab cov ntsiab lus alumina.
1, thaum lub alkalinity ntawm ntshiab kua polyaluminium chloride nyob rau hauv thaj tsam ntawm 40% ~ 60%, nws yog lub teeb daj pob tshab kua.Thaum cov alkalinity ntau dua 60%, nws maj mam dhau los ua kua tsis muaj xim pob tshab.
2, thaum lub alkalinity tsawg dua 30%, khoom polyaluminium chloride yog lub lens.
3, thaum alkalinity nyob rau hauv thaj tsam ntawm 30% ~ 60%, nws yog cov khoom siv colloidal.
4, thaum lub alkalinity ntau dua 60%, nws maj mam ua iav los yog resin.Solid polyaluminum chloride ua los ntawm bauxite los yog av nplaum ntxhia yog daj los yog xim av.
Cov duab kos duab
Kev faib ua feem
22-24% cov ntsiab lus:nruas ziab txheej txheem ntau lawm, tsis muaj phaj thiab thav duab lim, dej insoluble khoom yog siab dua, yog tam sim no kev lag luam tus nqi ntawm cov khoom lag luam, feem ntau yog siv rau kev kho dej khib nyiab.
26% cov ntsiab lus:nruas ziab txheej txheem ntau lawm, tsis muaj phaj thiab thav duab lim, dej insoluble khoom yog qis dua 22-24%, cov khoom no yog lub teb chaws tus qauv ntawm qib industrial, tus nqi yog me ntsis siab dua, feem ntau yog siv nyob rau hauv industrial wastewater kho.
28% cov ntsiab lus:Qhov no muaj ob hom txheej txheem ntawm lub nruas kom qhuav thiab tshuaj tsuag kom qhuav, kua los ntawm phaj thav duab lim, dej insoluble tshaj thawj ob qhov qis, koom nrog PAC cov khoom qib siab, tuaj yeem siv rau kev kho dej tsis tshua muaj dej phwj thiab cov kais dej cog ua ntej.
30% cov ntsiab lus:muaj ob hom nruas ziab thiab tshuaj tsuag kom qhuav, niam kua los ntawm lub phaj phaj lim, yog cov khoom siv qib siab PAC, feem ntau yog siv rau hauv cov kais dej cog thiab tsis tshua muaj turbidity ntawm kev kho dej hauv tsev.
32% cov ntsiab lus:Qhov no yog tsim los ntawm cov tshuaj tsuag kom qhuav, txawv ntawm lwm yam khoom, qhov PAC zoo li no yog dawb, yog siab purity non-ferrous polyaluminum chloride, feem ntau yog siv hauv kev lag luam tshuaj zoo thiab tshuaj pleev ib ce, koom rau qib zaub mov.
Polyacrylamide:hu ua PA M, feem ntau hu ua flocculant lossis coagulant
Txoj Cai:PAM molecular saw thiab dispersed theem los ntawm ib tug ntau yam ntawm mechanical, lub cev, tshuaj thiab lwm yam teebmeem, lub dispersed theem txuas ua ke, tsim ib tug network, yog li txhim khu lub luag hauj lwm.
Kev ua tau zoo:PAM yog hmoov dawb, soluble nyob rau hauv dej, yuav luag insoluble nyob rau hauv benzene, ether, lipids, acetone thiab lwm yam organic solvents, polyacrylamide aqueous kua yog yuav luag pob tshab viscous kua, yog ib yam khoom tsis txaus ntshai, tsis muaj tshuaj lom, tsis-corrosive, khoom. PAM muaj hygroscopicity, hygroscopicity nce nrog nce ionic degree.
Cov duab kos duab
Kev faib ua feem
PAM raws li nws cov yam ntxwv ntawm pawg dissociable yog muab faib ua anionic polyacrylamide, cationic polyacrylamide thiab non-ionic polyacrylamide.Ionic polyacrylamide.
Cationic PAM:activated sludge tsim los ntawm txoj kev biochemical
Anionic PAM:dej phwj thiab sludge nrog cov nqi zoo, xws li cov nroj tsuag steel, electroplating cog, metallurgy, thee ntxuav, tshem tawm plua plav thiab lwm yam dej phwj tuaj, muaj txiaj ntsig zoo dua.
Nonionic PAM:rau cationic thiab anionic muaj cov nyhuv zoo, tab sis chav tsev nqi kim heev, feem ntau tsis siv
Ob leeg ntxiv rau kev siv cov lus qhia
Flocculation yog dab tsi? Tom qab ntxiv coagulant rau cov dej nyoos, tag nrho sib xyaw nrog lub cev dej, feem ntau ntawm cov colloid impurities nyob rau hauv cov dej poob stability, thiab cov tsis ruaj tsis khov colloid hais colloid collide thiab condense nrog ib leeg nyob rau hauv lub flocculation pas dej ua ke, thiab ces tsim lub floc uas tuaj yeem raug tshem tawm los ntawm txoj kev los nag.
Qhov cuam tshuam ntawm flocculation
Cov txheej txheem ntawm kev loj hlob floc yog cov txheej txheem ntawm kev sib cuag thiab kev sib tsoo ntawm cov khoom me me.
Qhov zoo ntawm cov nyhuv flocculation nyob ntawm ob yam hauv qab no:
1 lub peev xwm ntawm polymer complexes tsim los ntawm coagulant hydrolysis los tsim adsorption ncej choj, uas yog txiav txim los ntawm cov khoom ntawm coagulants
2 qhov tshwm sim ntawm kev sib tsoo ntawm cov khoom me me thiab yuav ua li cas tswj lawv kom tsim nyog thiab muaj txiaj ntsig kev sib tsoo. Dej kho engineering kev qhuab qhia ntseeg hais tias txhawm rau ua kom muaj qhov tshwm sim ntawm kev sib tsoo, qhov ceev gradient yuav tsum tau nce ntxiv, thiab kev siv lub zog ntawm lub cev dej yuav tsum yog. nce los ntawm kev ua kom nrawm nrawm, uas yog, nce qhov nrawm nrawm ntawm lub pas dej flocculation (ntxiv: yog tias cov khoom sib sau ua ke thiab loj hlob sai heev hauv flocculation, lawv yuav raug rhuav tshem. Muaj ob qhov teeb meem: 1 floc loj hlob sai heev nws lub zog yog tsis muaj zog, nyob rau hauv cov txheej txheem ntws tau ntsib muaj zog shear yuav ua rau lub adsorption ncej choj raug txiav tawm, txiav tawm adsorption ncej choj yog ib qho nyuaj rau txuas ntxiv mus, yog li cov txheej txheem flocculation kuj yog ib qho kev txwv, nrog rau kev loj hlob ntawm floc, ntws tshaj tawm yuav tsum. raug txo kom tsawg, yog li cov tsim floc tsis yooj yim rau tawg; 2 qee qhov floc loj hlob sai heev yuav ua rau cov dej floc tshwj xeeb thaj chaw qis qis, qee cov tshuaj tiv thaiv tsis zoo tag nrho cov khoom me me poob cov tshuaj tiv thaiv, cov khoom me me thiab cov khoom loj sib tsoo. Qhov tshwm sim yuav txo qis, nws yog qhov nyuaj rau loj hlob dua, cov khoom no tuaj yeem tsis tsuas yog rau lub tank sedimentation khaws cia, nws tseem nyuaj rau khaws cia rau lub lim.)
Ntxiv cov cai
Nyob rau theem pib ntawm cov tshuaj tiv thaiv ntawm kev ntxiv coagulant, nws yog ib qho tsim nyog yuav tsum tau ua kom muaj kev sib cuag nrog cov dej phwj tuaj kom ntau li ntau tau, nce qhov sib tov los yog ntws tus nqi.Nyob ntawm kev sib tsoo ntawm cov dej ntws thiab folding phaj thiab cov dej ntws ntawm. folding phaj kom ceev ceev, kom cov dej hais sib tsoo lub sij hawm nce, kom lub floc condensation.Thiab rau lub lig cov tshuaj tiv thaiv, thiaj li yuav txo tau qhov ceev gradient, yuav tau zoo flocculation, nag los nag.
Ntxiv cov khoom siv:Lub thawv ntim tshuaj, tshuaj cia tank, dosing stirrer, dosing pump thiab metering equipment.Nruab nrog kev siv cov txheej txheem
PAC, PAM dispensing concentration (kuj tawm ntawm lub hnab ntim tshuaj thiab ntxiv rau hauv lub tank dissolution) PAC thiab PAM dispensing concentration Raws li kev paub: PAC dispensing concentration ntawm 5% -10%, PAM concentration ntawm 0.1% -0.3%, the saum toj no cov ntaub ntawv nyob rau hauv kev faib ua feem rau qhov zoo, uas yog, txhua txhua cubic dej PAC 50-100kg, PAM 1-3kg.This concentration yog kuj siab, PAM dissolution muaj peev xwm yog txwv, yuav tsum tau do tag nrho stirring nruab nrab ceev kom yaj tag.Nyob rau hauv lub caij ntuj sov, PAM dissolution concentration yuav tsum tau nce mus rau 0.3-0.5%. Siv PAC dissolution concentration ntawm 10%, PAM dissolution concentration ntawm 0.5%, ces txhua cubic dej yaj PAC100kg, PAM5kg, kho lub diaphragm flow meter twj tso kua mis ntws, raws li 1 cubic meter. / 24 teev kev suav, uas yog, Q = 42 litres / teev, tuaj yeem ua tiav cov dej phwj zoo zoo flocculation nyhuv.PAC, PAM dej phwj kho tus neeg saib xyuas ntau npaum li cas (ua kua dej hauv cov dej qub) Cov dej phwj tuaj kho tus neeg saib xyuas feem ntau yog PAC 50-100ppm, PAM 2-5ppm, ppm chav tsev yog ib lab, yog li hloov mus rau 50-100 grams ntawm PAC ib tuj dej phwj, 2-5 grams ntawm PAM, nws raug pom zoo tias feem ntau raws li qhov kev sim tshuaj no.Yog tias cov dej phwj tuaj kho txhua hnub yog 2000 cubic meters, PAC ntau npaum li cas raws li 50ppm, PAM ntau npaum li cas raws li 2ppm xam, ces txhua hnub PAC ntau npaum li cas. 100kg, PAM ntau npaum li cas yog 4kg.Cov koob tshuaj saum toj no yog xam raws li kev paub dav dav, qhov ntau npaum li cas thiab ntau npaum li cas yuav tsum tau ua raws li qhov kev sim ntawm cov dej zoo.Muab xam tus nqi teev nyob rau hauv lub dosing twj tso kua mis flow meter
Tom qab ntxiv tus neeg sawv cev rau cov dej phwj tuaj los yog sludge, nws yuav tsum tau sib xyaw kom zoo.Lub sijhawm sib tov yog feem ntau 10-30 vib nas this, feem ntau tsis pub ntau tshaj 2 feeb.Qhov ntau npaum li cas ntawm tus neeg sawv cev thiab cov concentration ntawm colloidal hais, tshem tawm cov khib nyiab hauv cov dej phwj tuaj los yog cov sludge, cov xwm txheej thiab cov khoom siv kho mob muaj kev sib raug zoo, kev kho sludge ntau npaum li cas, qhov ntau npaum li cas tau txais los ntawm ntau qhov kev sim.Raws li. Qhov zoo tshaj plaws npaum li cas concentration (ppm1 ntxiv concentration) thiab dej ntws (t / h) thiab configuration ntawm cov tshuaj concentration (ppm2 npaj concentration), yuav xam tau rau ntawm lub dosing twj tso kua mis flowmeter zaub nqi (LPM). dosing twj flowmeter (LPM) = dej ntws (t / h) / 60 × PPM1 ntxiv concentration / PPM2 npaj concentration.
Nco tseg: ppm yog ib lab; dosing twj tso kua mis flowmeter tus nqi units, LPM yog litres / feeb; GPM yog nkas loos / feeb
Post lub sij hawm: Feb-19-2024
