Parizvino, iyo yakajairwa mvura yetsvina COD inodarika mwero kunyanya inosanganisira electroplating, redunhu bhodhi, kugadzira mapepa, mishonga, machira, kudhinda uye dhayi, kemikari uye imwe tsvina yemvura, saka ndedzipi nzira dzekurapa dzeCOD tsvina yemvura? Handei tinoona tese.
Wastewater COD classification.
Nzvimbo dzekugadzira mvura yetsvina dzakakamurwa kuita: mvura yetsvina yeindasitiri, tsvina yekurima, uye tsvina yekurapa.
Domestic sewage inoreva musanganiswa wakaoma wemhando dzakasiyana-siyana dze organic matter inoumbwa neinorganic and organic matter, kusanganisira:
① Inoyangarara kana kuturika hombe uye zvidiki zvimedu zvakasimba
②Colloidal uye gel-senge diffusers
③Pure solution.
Nzira dzekurapa dzeCOD tsvina dzinosanganisira:
Kubviswa kweCOD nenzira yekubatanidza: makemikari coagulation nzira inogona kunyatsobvisa organic zvinhu mumvura yakasvibiswa uye kuderedza COD kusvika pamwero mukuru. Coagulation process inogamuchirwa, nekuwedzera flocculant, uchishandisa adsorption uye bridging ye flocculant, iyo yemagetsi yakapetwa kaviri layer inotsikirirwa, kuitira kuti colloid uye yakamiswa nyaya mumvura ikasagadzikana, inoroverana, uye yakanyungudutswa kuita floc, uyezve sedimentation kana mweya. flotation process inoshandiswa kubvisa ma Particles akaparadzaniswa kubva mumvura, kuitira kuti awane chinangwa chekuchenesa muviri wemvura.
Biological nzira yekubvisa COD: Biological nzira inzira yekuchenesa mvura yetsvina inotsamira pane microbial enzymes kuti oxidize kana kuderedza organic zvinhu kuparadza unsaturated bond uye chromophores kuzadzisa chinangwa chekurapa. Mumakore achangopfuura, ma microorganisms ave achishandiswa zvakanyanya mukurapa kwekutsvaira mvura yetsvina nekuda kwekukurumidza kwavo kubereka, kuchinjika kwakasimba uye mutengo wakaderera.
Kubviswa kweElectrochemical COD: Chakakosha cheelectrochemical wastewater treatment ndeye kushandisa electrolysis zvakananga kana zvisina kunanga kubvisa zvinosvibisa mumvura, kana kushandura zvinhu zvine chepfu kuita zvisina muchetura uye zvakaderera-chepfu.
Kubviswa kweCOD ne micro-electrolysis: Micro-electrolysis tekinoroji parizvino inzira yakanaka yekurapa yakanyanya-concentration organic tsvina, inozivikanwawo seyemukati electrolysis. Iyo yakagadzirwa inoshandisa micro-electrolysis zvinhu kuzadza tsvina pasi pemamiriro ekushaya magetsi, uye inogadzira 1.2V inogona mutsauko wega kuti iite electrolyze tsvina yemvura kuti iite chinangwa chekusvibisa zvinosvibisa organic.
COD kubviswa nenzira yekunyudza: activated kabhoni, macroporous resin, bentonite uye zvimwe zvinoshanda adsorption zvinhu zvinogona kushandiswa adsorb uye kubata particulate organic zvinhu uye chroma mutsvina. Inogona kushandiswa se pre-kurapa kuderedza COD iyo iri nyore kubata.
Oxidation nzira yekubvisa COD: Mumakore achangopfuura, kushandiswa kweiyo photocatalytic oxidation tekinoroji mumunda wekuchenesa mvura ine tarisiro yakanaka yemusika uye mabhenefiti ehupfumi, asi pachine matambudziko mazhinji mukutsvaga mune ino ndima, sekuwana yakakwirira-inoshanda catalysts. , kupatsanurwa uye kupora kwezvinokonzeresa kumirira.
Nguva yekutumira: Kubvumbi-17-2023
