Hanyoyin magani guda shida don babban COD na najasa

A halin yanzu, ruwan sharar gida na yau da kullun na COD ya zarce ma'auni musamman ya haɗa da lantarki, allon kewayawa, yin takarda, magunguna, yadi, bugu da rini, sinadarai da sauran ruwan datti, to menene hanyoyin magance ruwan COD? Mu je mu gani tare.
Rarraba Ruwan Ruwan COD.
Abubuwan da ake samar da ruwan sha sun kasu zuwa: ruwan sharar masana'antu, ruwan noma, da ruwan sha na likitanci.
Najasar cikin gida tana nufin hadadden nau'i na nau'ikan kwayoyin halitta daban-daban wadanda suka hada da kwayoyin halitta da kwayoyin halitta, gami da:
① Masu iyo ko dakatar da manya da kanana daskararrun barbashi
②Magudanar ruwa da gel-kamar diffusers
③ Magani mai tsafta.
Hanyoyin maganin COD ruwan sha sun haɗa da:
Cire COD ta hanyar coagulation: Hanyar coagulation na sinadarai na iya yadda ya kamata cire kwayoyin halitta a cikin ruwa mai datti kuma ya rage COD zuwa babba. Ana ɗaukar tsari na coagulation, ta hanyar ƙara flocculant, ta amfani da adsorption da haɗin gwiwar flocculant, ana matsawa na'urar lantarki biyu Layer, ta yadda kwayoyin colloid da aka dakatar da su a cikin ruwa sun lalace, sun yi karo, kuma a tashe su cikin flocs, sa'an nan kuma lalata ko iska. flotation tsari da ake amfani da su cire Barbashi suna rabu da ruwa, don cimma manufar tsarkake ruwa jiki.
Hanyar Halittu don Cire COD: Hanyar Halittar Halittu hanya ce ta maganin ruwa wacce ta dogara da enzymes microbial don oxidize ko rage kwayoyin halitta don lalata abubuwan da ba su da tushe da chromophores don cimma manufar jiyya. A cikin 'yan shekarun nan, an yi amfani da ƙananan ƙwayoyin cuta a cikin maganin ƙwanƙwasa ruwa saboda saurin haifuwa, ƙarfin daidaitawa da ƙananan farashi.
Cire COD na Electrochemical: Mahimmancin maganin ruwan sharar lantarki shine a yi amfani da electrolysis kai tsaye ko a kaikaice don kawar da gurɓataccen ruwa a cikin ruwa, ko kuma canza abubuwa masu guba zuwa abubuwan da ba su da guba da ƙarancin guba.
Cire COD ta micro-electrolysis: Fasahar micro-electrolysis a halin yanzu hanya ce mai kyau don kula da ruwan sharar jiki mai girma, wanda kuma aka sani da electrolysis na ciki. Ƙirƙirar tana amfani da kayan micro-electrolysis don cike ruwan sharar gida a ƙarƙashin yanayin rashin wutar lantarki, kuma yana haifar da yuwuwar 1.2V da kanta don yin amfani da ruwan sharar lantarki don cimma manufar lalata gurɓataccen yanayi.
Cire COD ta hanyar sha: carbon da aka kunna, resin macroporous, bentonite da sauran kayan talla masu aiki ana iya amfani da su don adsorb da bi da ɓangarorin kwayoyin halitta da chroma a cikin najasa. Ana iya amfani da shi azaman riga-kafi don rage COD wanda ya fi sauƙin ɗauka.
Hanyar Oxidation don cire COD: A cikin 'yan shekarun nan, aikace-aikacen fasahar oxidation na photocatalytic a fagen kula da ruwa mai tsabta yana da kyakkyawan fata na kasuwa da fa'idodin tattalin arziki, amma har yanzu akwai matsaloli da yawa a cikin bincike a wannan fanni, kamar gano manyan abubuwan haɓakawa. , rabuwa da dawo da masu kara kuzari jira.