Juyawa da juyawa

FARUWA
A fagen ilmin sinadarai, flocculation shine tsarin da ƙwayoyin colloidal ke fitowa daga hazo a cikin flocculent ko flake form daga dakatarwa ko dai ba tare da bata lokaci ba ko kuma ta hanyar ƙarin bayani. Wannan tsari ya bambanta da hazo a cikin cewa an dakatar da colloid a cikin ruwa a matsayin barga tarwatsawa kafin yawo kuma ba a narkar da shi a cikin bayani.
Coagulation da flocculation matakai ne masu mahimmanci a cikin maganin ruwa. Ayyukan coagulation shine ya lalata da tara ɓangarorin ta hanyar hulɗar sinadarai tsakanin coagulant da colloid, da flocculate da hado barbashi marasa ƙarfi ta hanyar haɗa su cikin flocculation.

BAYANIN KARSHE
A cewar IUPAC, flocculation shine "tsarin tuntuɓar juna da mannewa ta yadda barbashi na nau'i na nau'i mai girma ya fi girma".
Ainihin, flocculation shine tsarin ƙara flocculant don lalata barbashi masu caji. A lokaci guda, flocculation wata dabara ce ta haɗuwa da ke haɓaka haɓakawa kuma tana ba da gudummawa ga daidaitawar barbashi. Babban coagulant shine Al2 (SO4) 3• 14H2O.

Filin aikace-aikace

FASSARAR MAGANIN RUWA
Ana amfani da ruwa da hazo sosai wajen tsarkake ruwan sha da kuma kula da najasa, ruwan guguwa da ruwan sharar masana'antu. Hanyoyin jiyya na yau da kullun sun haɗa da gratings, coagulation, flocculation, hazo, tacewa barbashi da disinfection.
SURFACE CHEMISTRY
A cikin sinadarai na colloidal, flocculation shine tsarin da ke tattare da ɓangarorin ƙwararru tare. Sa'an nan floc na iya yin iyo zuwa saman ruwan (opalescent), daidaita zuwa kasan ruwan (hazo) ko kuma cikin sauƙi tace daga cikin ruwan. Halin flocculation na ƙasa colloid yana da alaƙa a kusa da ingancin ruwan ruwa. Babban tarwatsawar colloid na ƙasa ba wai kai tsaye yana haifar da turɓayar ruwan da ke kewaye ba, amma kuma yana haifar da eutrophication saboda sha na abubuwan gina jiki a cikin koguna, tafkuna har ma da jirgin ruwa na ƙarƙashin ruwa.

KIMIYAR JIKI
Don emulsions, flocculation yana kwatanta haɗuwar ɗigon da aka tarwatsa guda ɗaya don kada ɗigon guda ɗaya ya rasa kaddarorin su. Don haka, flocculation shine matakin farko (haɗin kai da rabuwar lokaci na ƙarshe) wanda ke haifar da ƙarin tsufa na emulsion. Ana amfani da Flocculants a cikin fa'idodin ma'adinai, amma kuma ana iya amfani dashi a cikin ƙirar kayan abinci da magunguna.

KASHE

Juyawa juzu'i shine ainihin kishiyar flocculation kuma wani lokaci ana kiransa gelling. Sodium silicate (Na2SiO3) misali ne na yau da kullun. Colloidal barbashi yawanci ana tarwatsewa a mafi girma pH jeri, ban da ƙananan ƙarfin ionic na maganin da rinjayen cations na ƙarfe na monovalent. Abubuwan da ke hana colloid yin flocculent ana kiransu antiflocculans. Don jujjuyawar juzu'i ta hanyar shingen lantarki, ana iya auna tasirin flocculant ta hanyar yuwuwar zeta. A cewar Encyclopedia Dictionary of Polymers, antiflocculation shine “jiha ko yanayin tarwatsa wani abu mai ƙarfi a cikin ruwa wanda kowane tsayayyen barbashi ya kasance mai zaman kansa kuma ba ya haɗa shi da maƙwabtansa (kamar emulsifier). Dakatarwar da ba sa yawo ba su da sifili ko ƙananan ƙimar yawan amfanin ƙasa ".
Juya floccul na iya zama matsala a masana'antar sarrafa najasa saboda sau da yawa yana haifar da matsalolin daidaitawar sludge da tabarbarewar ingancin ruwa.