Fahimtar ka'idar maganin najasa

Tare da ci gaban tattalin arziki, ruwa gurbacewar yanayi na kara yin muni, a hankali jihar ta karu tsananin maganin najasa a cikin birni, musamman a cikin 'yan shekarun nan, ma'auni na zuba jari na ci gaba da fadada, da kuma saurin gina najasa tsire-tsire masu magani sun haɓaka sosai. Mutane da yawa suna sha'awar, menene shine tsarin kula da kunshin najasa? Bayyana shi a cikin labarin. Fahimtar ka'idar maganin najasa

Akwai hanyoyi guda biyu na maganin najasa: ɗaya shine rabuwa, kuma ɗayan shine juyowa.Fahimtar ka'idar maganin najasa

Rabuwa shine raba wasu gurɓataccen ruwa a cikin najasa daga ruwa jiki, takamaiman matakan sun haɗa da hazo, flocculation, centrifugation, iska flotation, hurawa da sauransu, ainihin jiki da hanyoyin sinadarai. Yawancin lokaci, gurɓataccen abu a cikin najasa kamar kwayoyin halitta na iya a cire bayan farko rabuwa da magani, da kuma bukatun su ne ba mai girma ba, don haka ana iya sauke shi kai tsaye. Wannan shi ake kira primary processing.

Wasu gurɓatattun abubuwa ba za a iya raba su da kyau ba, kamar narkar da su kwayoyin halitta, nitrogen ammonia, phosphates, wanda ya kamata a canza shi zuwa abubuwa marasa lahani, ko abubuwan da aka raba cikin sauƙi. Mafi mahimmanci Tsarin biochemical a cikin maganin najasa shine aikin canji misali, Narkar da kwayoyin halitta ana cire su ta hanyar juya kwayoyin halitta zuwa carbon dioxide (wanda yawanci ba shi da lahani kuma a sauƙaƙe rabuwa da ruwa) da nazarin halittu sludge (mai lahani, amma kuma sauƙi precipitated da rabu). Wannan ake kira secondary processing. Akwai hanyoyi da yawa na tuba, kamar daban-daban ci-gaba hadawan abu da iskar shaka, acid-base neutralization da sauransu. Da cyanide najasar da hatsarin fashewar Tianjin ya samar zai iya karya ne kawai ta hanyar mai karfi hadawan abu da iskar shaka na hydrogen peroxide don karya CN bond da yin shi mara lahani.

Tsarin tsire-tsire na cikin gida yawanci grid 2 ne na farko hazo 3 maganin biochemical 4 hazo na biyu 5 disinfection. Daga rarrabuwa na sama, 124 shine rabuwa kuma 35 shine canji. Wannan nau'in tsari daban, kodayake barga da sauƙi, amma ya mamaye babban yanki, babban farashin gini, tsawon lokacin zama (za'a iya fahimta a matsayin babba girma na Tsarin sun mamaye babban yanki).

Yanzu sabbin fasahohi suna ƙara karkata zuwa haɗa rabuwa da jujjuya zuwa tsarin tsarin don rage farashi da inganta inganci, kamar tsarin kula da halittu na membrane (MBR), wanda shine biochemical tsari da firamare da sakandare sedimentation a cikin wani pool, don haka a fili da sawun ya ragu sosai. Kodayake farashin tsarin membrane shine har yanzu high, tare da ci gaban fasaha, farashin zai zama m da ƙananan, kuma zai zama mafi shahara.