Zifukwa Za Kukhazikika Kwambiri kwa Polydimethyldiallyl Ammonium Chloride (PolyDadmac)

Anthu omwe ali ndi luso lalikulu pa ntchito yokonza madzi otayira amadziwa zimenezopdadmacndi flocculant yokhala ndi kukhazikika kopitilira momwe imagwiritsidwira ntchito nthawi zonse. Ma flocculant ambiri omwe ali pamsika ndi ofewa kwambiri, amawonongeka mosavuta ndi kuwala kwa dzuwa, kutentha kochepa, ndi ma acid/alkali, amasonkhana mosavuta ndipo sagwira ntchito patatha theka la mwezi wokha atasungidwa, ndipo amalephera mosavuta akalowetsedwa m'madzi ovuta. Komabe, Polydimethyldiallyl ammonium chloride imalekerera kwambiri. Kugwira ntchito kwake sikumakhudzidwa ndi kutentha kwambiri m'chilimwe kapena kutentha kozizira m'nyengo yozizira, zomwe zimapangitsa kuti ikhale mankhwala odalirika "okhazikika" pochiza madzi otayira.

Kukhazikika kwapamwamba kumeneku kumachokera ku kapangidwe kake kapadera komanso kolimba ka mamolekyu. Chigoba cha mamolekyu cha chinthuchi chimafanana ndi unyolo wolimba wa hemp, wokhala ndi kapangidwe kokhazikika komanso wopanda malo ofooka. Mosiyana ndi zimenezi, ma flocculant wamba nthawi zambiri amapangidwa ndi mamolekyu ang'onoang'ono osalimba omwe amasweka mosavuta m'malo otentha kwambiri, acidic, kapena alkaline, ndikutaya mphamvu yawo yosuntha. Mosiyana ndi zimenezi, polydimethyldiallyl ammonium chloride imakhala ndi kukhazikika kwakukulu kwa unyolo wa mamolekyu pambuyo pa polymerization. Ngakhale ikakumana ndi malo otentha kwambiri a madzi otayira, kapangidwe kake ka mamolekyu kamakhalabe kolimba komanso kogwira ntchito. Ichi ndiye chifukwa chachikulu chomwe chimatha kusakaniza mwachangu zinyalala za madzi otayira ndikupanga ma floc okhuthala ngakhale pamalo osungira mpweya komanso pamalo otentha kwambiri.

Magulu omwe ali ndi mphamvu zofanana pa unyolo wake wa mamolekyulu amagwira ntchito ngati chotchinga chachilengedwe choteteza, zomwe zimapatsa mankhwalawa mphamvu yabwino kwambiri yogwirizana ndi madzi. Ma flocculant wamba sakhala ndi chitetezo pamwamba ndipo amaphimbidwa mosavuta ndi mafuta ndi zinyalala m'madzi otayidwa, zomwe zimataya mphamvu yawo yoyamwa. Komabe, magulu omwe ali ndi mphamvu zabwino a mankhwalawa samangogwira ntchito ngati zolinga zoyamwa zinyalala zazing'ono, utoto, ndi zoipitsa komanso amawalekanitsa ndi zosokoneza zakunja monga ma acid, alkalis, mankhwala ena, ndi mafuta, kuteteza kapangidwe ka mamolekyulu apakati kuti asawonongeke. Izi zimathandiza kuti pakhale mgwirizano wolimba ndi madzi otayidwa ovuta m'mafakitale kuchokera ku utoto, kusindikiza, ndi mafakitale a mankhwala, komwe kusinthasintha kwa pH kuli kwakukulu.

Ponena za kusungira ndi mayendedwe, ubwino wake umaposa kwambiri wa zinthu zofanana. Ma flocculant ambiri opangidwa ndi ufa amakhala osavuta kuyamwa chinyezi ndi kusonkhana; ngakhale chinyezi chambiri pang'ono panthawi yosungira chimawapangitsa kuwonongeka, kusagwira ntchito, ndikulephera kusungunuka. Polydimethyl diallyl ammonium chloride (PDMC) imakhala yolimba kwambiri m'madzi ndi olimba, osawonetsa zotsatira zosafunikira za mankhwala apakati pa mamolekyulu. Malo oyeretsera madzi otayira amatha kuwasunga mochuluka popanda kufunikira kutentha kapena chinyezi mwadala. Itha kusungidwa m'nyumba zosungiramo kutentha kwa nthawi yayitali ndipo ingagwiritsidwe ntchito nthawi zonse ngakhale itazizira ndi kusungunuka panja nthawi yozizira, popanda mavuto aliwonse owonongeka kapena kulephera, zomwe zimachepetsa kwambiri mtengo wa flocculant.

Kuphatikiza apo, mankhwala ake opangidwa ndi flocculant amasonyeza kukhazikika kwakukulu. Flocculant wamba amapanga floc yosasunthika komanso yosalimba yomwe imasweka mosavuta ndi kuyenda pang'ono kwa madzi, zomwe zimapangitsa kuti zinthu zoipitsa zibwerere m'madzi ndikulephera kuchiza. Mosiyana ndi zimenezi, PDMC ili ndi mphamvu zolimba kwambiri zoyamwa ndi kutsekereza, zomwe zimamangirira mwamphamvu zinyalala zazing'ono ndi mafuta kuti apange floc yokhuthala komanso yolimba. Floc izi zimalimbana kwambiri ndi kukokoloka kwa madzi, zimakhala bwino kwambiri, ndipo zimapanga machubu ang'onoang'ono a matope omwe amatha kukanidwa mwachindunji ndikuwumbidwa, oyenera bwino ntchito zovuta zochizira madzi akuda monga minda yamafuta. Chifukwa cha kukhazikika kwake konse, chothandizirachi chakhala flocculant yokondedwa kwambiri kwa nthawi yayitali mumakampani ochizira madzi akuda.