Ubwino wa polyaluminium chloride wochita bwino kwambiri pochiza madzi oyipa

Ndi kufulumira kwa mafakitale, kutaya kwa zimbudzi kwakhala vuto lalikulu pachitetezo cha chilengedwe padziko lonse lapansi. Pachimake pa zimbudzi ndi kusankha ndi ntchitoflocculantsm’kuyeretsa. M'zaka zaposachedwapa, mkulu-mwachangu polyaluminium kolorayidi (PAC), monga flocculant yofunika, pang'onopang'ono wakhala "nyenyezi mankhwala" mu makampani zimbudzi zimbudzi chifukwa cha ntchito zake zabwino ndi chiyembekezo ntchito lonse.

Polyaluminium chloride ndi inorganic polima pawiri ndi mphamvu flocculation zotsatira. Imatengedwa ndi polymerization reaction ya aluminium chloride ndi aluminium hydroxide pansi pazikhalidwe zina. Poyerekeza ndi miyambo aluminiyamu mchere flocculants (monga zotayidwa sulfate, zotayidwa mchere coagulant, etc.), mkulu-mwachangu polyaluminium kolorayidi ali ndi mphamvu yamphamvu kuchotsa zoipitsa, makamaka polimbana ndi turbidity mkulu ndi wolemera kuipitsa mafuta. Kagwiridwe kake kamakhala kopambana makamaka pankhani ya mtundu wamadzi. Zakhala zikugwiritsidwa ntchito kwambiri m'magawo ambiri monga kuyeretsa zimbudzi zamatauni, kuyeretsa zimbudzi zamafakitale, komanso kuyeretsa zimbudzi zapanyumba.

Ubwino wa polyaluminium chloride yogwira ntchito kwambiri

1. The flocculation zotsatira ndi zodabwitsa

Mkulu-mwachangu polyaluminiyamu mankhwala enaake mwamsanga kupanga ambiri flocs zabwino m'madzi, potero mogwira adsorbing zolimba inaimitsidwa, colloidal zinthu ndi tizilombo m'madzi. Imatha kutsatsa mwachangu ndikuchotsa tinthu tating'onoting'ono, mafuta, ayoni azitsulo zolemera ndi zoipitsa zina m'madzi. Makamaka polimbana ndi zovuta zamadzi, zotsatira zake zimakhala zapamwamba kwambiri kuposa momwe zimakhalira mchere wa aluminiyamu. Pochiza zimbudzi, polyaluminium chloride yochita bwino kwambiri imatha kukulitsa kuthamanga kwa thanki ya sedimentation kwakanthawi kochepa, motero kufupikitsa kwambiri kayendedwe ka zimbudzi.

2.Wide osiyanasiyana ntchito

Kugwira ntchito bwino kwa polyaluminium chlorideamatha kutengera zinthu zosiyanasiyana zamtundu wamadzi, kuphatikiza madzi okhathamira kwambiri, zimbudzi zamafuta ambiri, madzi okhala ndi zitsulo zolemera, komanso madzi otsika otsika kwambiri, owonetsa kusinthasintha kwamphamvu. Itha kuchotseratu zolimba zambiri zoyimitsidwa ndi zoipitsa m'madzi, ndipo zitha kugwiritsidwa ntchito kwambiri pakuyeretsa zimbudzi m'magawo osiyanasiyana monga oyang'anira tauni, mafakitale, ndi migodi. Mwachitsanzo, pochiza zimbudzi zapanyumba, madzi onyansa a mphero, madzi otayira zitsulo, madzi onyansa amakampani azakudya ndi zina, polyaluminium chloride yogwira ntchito kwambiri imatha kupeza zotsatira zabwino kwambiri zamankhwala.

3. Mlingo wochepa, mphamvu zambiri komanso kupulumutsa mphamvu

Mlingo wapamwamba kwambiri wa polyaluminium chloride udapangidwa kuti ukwaniritse mlingo wocheperako komanso zotsatira zabwino za flocculation. Mlingo wa low-turbidity ndi 25-40% ya aluminium sulfate, ndipo mlingo wa turbidity wapamwamba ndi 10-25% ya aluminium sulfate. Izi sizingochepetsa mtengo wogwiritsira ntchito mankhwala, komanso zimachepetsanso mphamvu zogwiritsira ntchito mphamvu ndi matope mu ndondomeko ya kuchimbudzi. Chifukwa cha zotsalira zake zochepa za aluminiyamu, zimachepetsa kuipitsidwa kwachiwiri kwa matupi amadzi ndipo zimachepetsa kwambiri mtengo wonse wakuthira zimbudzi. Chifukwa chake, chakhala chida chofunikira chosungira ndalama ndikuwongolera magwiridwe antchito.

4. Wokonda zachilengedwe

Kugwiritsa ntchito bwino kwambiri kwa polyaluminium chloride sikukhudza kwambiri chilengedwe komanso zotsalira zochepa za aluminiyumu. Poyerekeza ndi ma flocculants ena amankhwala, polyaluminium chloride ndi yotetezeka komanso imakhudza pang'ono pH ndi TA ya zonyansa, motero kufunikira kwa mankhwala kuti asinthe pH ndi TA kumachepa. Makamaka m'magulu akuluakulu oyendetsa zimbudzi ndi ntchito zoteteza chilengedwe, zakhala chisankho chobiriwira komanso chokonda zachilengedwe.

5. Oyenera kutentha otsika ndi mkulu turbidity madzi mankhwala

Kuthira madzi m'nyengo yotentha ndizovuta kwambiri. Makamaka m'nyengo yozizira yozizira, mphamvu ya flocculants yambiri yachikhalidwe idzachepetsedwa kwambiri. Komabe, polyaluminium chloride yochita bwino kwambiri imatha kupitilizabe kukhalabe ndi mphamvu yakuya kwambiri pansi pa kutentha kochepa. Komanso, pamene turbidity madzi ndi mkulu, PAC amasonyezanso amphamvu processing mphamvu ndipo angathe kuchotsa inaimitsidwa particles ndi colloidal zinthu m'madzi. Pamadzi okhala ndi kuipitsidwa kwamafuta olemera, polyaluminium chloride yogwira ntchito bwino kwambiri imakhalanso ndi zotsatira zabwino kwambiri zochotsera mafuta.

6. Sinthani kumitundu yosiyanasiyana ya pH

Polyaluminium chloride yogwira ntchito kwambiri imakhala ndi mphamvu yosinthika pakusintha kwamadzi pH ndipo imatha kugwira ntchito bwino mumitundu yambiri ya pH. Nthawi zambiri, PAC imatha kukhala ndi flocculation yabwino m'madzi okhala ndi pH yotsika (acidic) kapena yapamwamba (ya alkaline), yomwe imakulitsanso kupezeka kwake pamikhalidwe yosiyanasiyana yamadzi. 5.0-9.0 vs 5.5-7.5

7. Kupititsa patsogolo mphamvu ya sedimentation ndikuchepetsa kuchuluka kwa matope

Mkulu-mwachangu polyaluminiyamu kolorayidi kumathandiza imathandizira kukhazikika kwa tinthu olimba mu zinyalala ndi bwino ntchito dzuwa thanki sedimentation ndi kuwongolera kachulukidwe ndi settleability wa flocs. Kuphatikiza apo, chifukwa cha kuchuluka kwa polymerization ya polyaluminium chloride yapamwamba kwambiri, ma flocs omwe amapangidwa amakhala olimba komanso amakhazikika mwachangu, motero amachepetsa kuchuluka kwa matope opangidwa. Izi ndizofunika kwambiri pakuchiritsa ndi kutaya zinyalala pambuyo pake, ndipo zimatha kuchepetsa mtengo ndi zovuta za mankhwala amatope.

Zitsanzo zogwiritsira ntchito za polyaluminium chloride yogwira ntchito kwambiri pochiza madzi oipa

1. Kuyeretsa zimbudzi za muspala

M'munda wa zimbudzi zamatauni, mkulu-mwachangu polyaluminium kolorayidi angagwiritsidwe ntchito kwambiri mu pretreatment ndi sekondale magawo mankhwala zomera madzi. Ikhoza kuchotsa zolimba zoyimitsidwa, zinthu za colloidal, mabakiteriya ndi tizilombo tina tating'onoting'ono m'madzi, kukonza madzi abwino, ndikupereka madzi apamwamba kwambiri kuti athandizidwe ndi tizilombo toyambitsa matenda. PAC yakhala imodzi mwazinthu zotsogola m'mafakitale otsuka zimbudzi m'mizinda yambiri kunyumba ndi kunja.

2.Mafakitale opangira madzi onyansa

M'malo opangira madzi otayira m'mafakitale, polyaluminium chloride yogwira ntchito kwambiri imagwiritsidwanso ntchito kwambiri. Zili ndi zotsatira zabwino zochizira madzi otayira m'mafakitale osindikizira ndi utoto, kupanga mapepala, zikopa, electroplating ndi mafakitale ena, ndipo zimatha kuchotsa zowononga monga mtundu, COD ndi BOD. Mwachitsanzo, muzitsulo, mphamvu zamagetsi, makampani opanga mankhwala, kupanga mapepala, kukonza zakudya ndi mafakitale ena, PAC ingathandize kuchotsa zitsulo zolemera, madontho amafuta, tinthu tating'onoting'ono ndi zowononga zina m'madzi. Makamaka poyeretsa madzi onyansa amafuta, PAC yawonetsa kuthekera kwake kochotsa mafuta ndipo imatha kuchepetsa kwambiri mafuta omwe ali m'madzi.

3. Kusamalira madzi onyansa amigodi

M'munda wamankhwala amadzi onyansa amigodi, polyaluminium chloride yogwira ntchito kwambiri imatha kuchotsa bwino mchere, dothi ndi zinthu zina zoyimitsidwa m'madzi, zomwe zimathandizira kukonzanso madzi ndikubwezeretsanso zachilengedwe m'malo amigodi. Popeza kuti madzi a m'madera a migodi ndi ovuta ndipo nthawi zambiri amakhala ndi zinthu zambiri zolimba zoyimitsidwa ndi zitsulo zolemera kwambiri, kugwiritsa ntchito bwino kwambiri kwa polyaluminium chloride ndipamwamba kwambiri pamtundu woterewu wa madzi otayira.

Mwambiri,polyaluminiyamu kloride wapamwamba kwambiri, monga flocculant kwambiri pochiza zimbudzi, ali kwambiri luso luso ndi chilengedwe ubwino. Makamaka pankhani ya turbidity yapamwamba, mtundu wamadzi wovuta, komanso kuipitsidwa kwamafuta ochulukirapo, imatha kukhala ndi zotsatira zabwino kwambiri pakuchiritsa.