Overviewrapermaking marara mapofu inonyanya kuuya kubva kune maviri ekugadzira maitiro ekuburitsa uye mapepa mune indasitiri yepepa. PURPE ndeyekuparadzanisa mafambiro kubva padhirowa zvishandiso, gadzira mupanda, wobva waisipa. Maitiro aya anoburitsa huwandu hwakawanda hwemapepa emapepa emvura; Papermemu ndeyekunyudza, chimiro, chengetedza, uye yakaoma pulp kugadzira pepa. Iyi process zvakare inowanzo kuburitsa mapepa akapepeta marara. Iyo huru marara yakagadzirwa mumapururu maitiro idoro doro uye doro rakatsvuka, uye mapepa anonyanya kuburitsa mvura chena.
Main maficha 1. Yakakura huwandu hwemarara.2. Iyo yakasviba ine huwandu hwakawanda hwekumiswa solids, kunyanya inki, fiber, filler uye zvinowedzera.3. Iyo SS, cod, bod uye imwe isina kusvibisa mumvura yakakwirira, iyo cod zvemukati yakakwira kupfuura bod, uye ruvara rwakasviba.
Kuronga kuronga uye dambudziko rondedzero.1. Nzira yekurapa Iyo yazvino kurapwa nzira inonyanya kushandisa Anaerobic, Aerobic, yemuviri uye yemakemikari coagulation uye sedimenation process yekusanganisa maitiro ekurapa.
Maitiro ekurapa uye kuyerera: Mushure memusango unopinda mumarara ekurapa kwekurapa Mushure mekupinda maruva, Iyo flotation effluent inopinda muAnaerobic uye Aerobic maviri-nhanho Biochemical kurapwa kubvisa yakawanda yeiyo bhodhi uye cod mumvura. Mushure mekiri yechipiri sedimentation tank, iyo cod uye chromaticity yeiyo marara haisangane neNational Emb offes. Kemical coagulation inoshandiswa kurapwa kwakasarudzika kuitira kuti iyo yakasviba inogona kusangana nematanho emisasa kana kuti inogona kusangana nematanho emumuromo.
Zvinetso zvakajairika uye mhinduro 1) COD inodarika chiyero. Mushure mekunge mapundu anobatwa neAnaerobic uye aerobic biochemical kurapwa, iyo cod yeiyo effluent haina kusangana nemafambiro emukati.Sexx: Shandisa yakakwira-yekubudirira cod yekushambadzira mumiririri wekurapa. Zviwedzere kumvura mune imwe chikamu uye kuita kwemaminitsi makumi matatu.
2) zvese zvarkaticity uye cod inodarika mwero mushure mekunge iyo yemvura inobatwa neAnaerobic uye Aerobic Biochemical kurapwa, iyo cod yeiyo fungidziro haina kusangana nemabhuku emunhu. Solution: Wedzera yakakwirira-inobudirira flcculation decoculatia, sanganisa nekukwira-kwakasimba kushora, uye pakupedzisira shandisa polkacrirlabide for flocculation uye yekufungidzira, yakasimba-yakasimba-yemvura kupatsanurwa.
3) Akawandisa Ammonia nitrogen Iyo effluent Ammonia nitrogen haigoni kusangana nezvinodiwa zvazvino. Solution: Wedzera Ammonia Nitrogen Refuver, STROGE kana EATET uye Sanganisa, uye ita kwemaminitsi matanhatu. Mune pepa pepa, iyo Effluent Ammonia nitrogen inenge 40pp, uye iyo Amonia yeAmoni Nitrogen Standard iri pazasi 15PPM
Mhedziso Yemapepa Pepa Matombo Anofanira Kutarisa pakuvandudza huwandu hwemvura Semuenzaniso: Nzira yekurongedza inogona kudzorera fibrous solids mumvura chena, ine huwandu hwekudzora hweanosvika 95%, uye mvura yakajekeswa inogona kushandiswazve; Bundution Trustrater Kurapa nzira kunogona kudzorera sodium hydroxide, sodium sulfate, sodium sulfate uye imwe sodium salts yakasanganiswa neine organic nyaya mumvura dema. Kusarerekera marara maronda ekurapa nzira inogadzirisa iyo pH kukosha kwemarara; coaglation sedimentation kana blotation inogona kubvisa zvidimbu zvidimbu zveSS mumarara; nzira yemakemikari yekutanga inogona kugadzirisa; Biological kurapwa nzira inogona kubvisa bod uye cod, iyo inonyanya kushanda kune kraft mapepa mapepa emvura. Mukuwedzera, kune zvakare reverse osmosis, Ultrafiltration, electrodialsis uye imwe nzira yemapepa ekurwisa mapepa ekurwisa anoshandiswa kumba uye kune dzimwe nyika.
Kutumira Nguva: Jan-17-2025