Niki wakora niba COD iri mumazi mabi?

Umwuka wa ogisijeni ukenewe, uzwi kandi nko gukoresha ogisijeni ya chimique, cyangwa COD muri make, ukoresha okiside ya chimique (nka potasiyumu dichromate) kugirango uhindure kandi ubore ibintu bya okiside (nkibintu kama, nitrite, umunyu wa ferrous, sulfide, nibindi) mumazi, hanyuma ikoreshwa rya Oxygene ibarwa ukurikije ingano ya okiside isigaye. Kimwe na ogisijeni ikomoka kuri biohimiki (BOD), ni ikimenyetso cyingenzi cyerekana urugero rw’umwanda. Igice cya COD ni ppm cyangwa mg / L. Agaciro gake, niko urugero rwo kwanduza amazi rugabanuka. Mu bushakashatsi bw’imyanda y’imyanda n’imiterere y’amazi mabi y’inganda, ndetse no mu mikorere n’imicungire y’inganda zitunganya amazi y’amazi, ni ikintu cy’ingenzi kandi gipimwa vuba na bwangu COD.
Umwuka wa ogisijeni ukenewe (COD) ukoreshwa kenshi nkikimenyetso cyingenzi cyo gupima ibirimo ibinyabuzima mumazi. Iyo ogisijeni ikenewe cyane, niko umubiri w’amazi uhumanya n’ibinyabuzima. Kugirango hapimwe imiti ya ogisijeni ikenerwa (COD), indangagaciro zapimwe ziratandukanye bitewe nibintu bigabanya urugero rwamazi nuburyo bwo gupima. Uburyo bukoreshwa cyane muburyo bwo kugena ubu ni uburyo bwa aside ya potasiyumu permanganate ya okiside hamwe nuburyo bwa okiside ya potasiyumu dichromate.
Ibinyabuzima byangiza cyane sisitemu yamazi yinganda. Mu magambo make, umwuka wa ogisijeni ukenera kandi urimo ibintu bitagabanya ibintu biboneka mumazi. Mubisanzwe, kubera ko ubwinshi bwibintu kama mumazi yanduye ari byinshi cyane kuruta ubwinshi bwibintu kama kama, ogisijeni ya chimique ikoreshwa mubisanzwe kugirango igereranye ubwinshi bwibintu kama mumazi mabi. Mugihe cyo gupima, ibintu kama kitarimo azote mumazi byoroshye okiside na potasiyumu permanganate, mugihe ibinyabuzima birimo azote bigoye kubora. Kubwibyo rero, gukoresha ogisijeni ikwiranye no gupima amazi karemano cyangwa amazi rusange arimo ibintu bya okiside byoroshye, mugihe amazi mabi yinganda zinganda hamwe nibice byinshi bigoye akoreshwa mugupima ogisijeni ikenewe.
Ingaruka za COD kuri sisitemu yo gutunganya amazi
Iyo amazi arimo ibintu byinshi kama kanyuze muri sisitemu ya desalination, bizanduza resin ya ion. Muri byo, biroroshye cyane kwanduza resin ya anion, bityo bikagabanya ubushobozi bwo guhana. Ibintu kama birashobora kugabanukaho hafi 50% mugihe cyo kwitegura (coagulation, ibisobanuro no kuyungurura), ariko ibinyabuzima ntibishobora gukurwaho neza muri sisitemu yo kunyaza. Kubwibyo, maquillage yamazi azanwa mumashanyarazi kugirango agabanye pH agaciro kamazi. , gutera sisitemu kwangirika; rimwe na rimwe ibintu kama bishobora kwinjizwa muri sisitemu ya parike hamwe na konderasi y'amazi, bikagabanya agaciro ka pH, nabyo bishobora gutera sisitemu kwangirika.
Byongeye kandi, ibinyabuzima birenze urugero muri sisitemu yamazi azenguruka bizamura mikorobe. Kubwibyo, tutitaye kumyunyu ngugu, amazi abira cyangwa sisitemu yamazi azenguruka, munsi ya COD, nibyiza, ariko kuri ubu nta mibare ihuriweho.
Icyitonderwa: Muri sisitemu yo gukwirakwiza amazi akonje, mugihe COD (uburyo bwa KMnO4) ari> 5mg / L, ubwiza bwamazi bwatangiye kwangirika.
Ingaruka za COD kubidukikije
Ibirimo COD nyinshi bivuze ko amazi arimo ibintu byinshi bigabanya ibintu, cyane cyane byangiza ibidukikije. Iyo COD iri hejuru, niko umwanda ukabije wanduye mumazi yinzuzi. Inkomoko y’imyanda ihumanya muri rusange ni imiti yica udukoko, ibihingwa ngandurarugo, ifumbire mvaruganda, nibindi. Niba bidakozwe neza mugihe, imyanda ihumanya myinshi irashobora kwamamazwa nubutaka bwumugezi hanyuma ikabikwa, bigatuma uburozi burambye mubuzima bwamazi muri bake bakurikira imyaka.
Nyuma yuko umubare munini wubuzima bwamazi apfuye, urusobe rwibinyabuzima muruzi ruzangirika buhoro buhoro. Niba abantu bagaburira ibinyabuzima nkibi mumazi, bazakuramo uburozi bwinshi buturuka kuri ibyo binyabuzima hanyuma babukusanyirize mu mubiri. Uburozi bukunze kuba kanseri, deformational, na mutagenic, kandi byangiza cyane ubuzima bwabantu. Byongeye kandi, niba amazi yinzuzi yanduye akoreshwa mu kuhira, ibihingwa n’ibihingwa nabyo bizagira ingaruka kandi bikure nabi. Ibi bihingwa byanduye ntibishobora kuribwa nabantu.
Nyamara, imiti myinshi ya ogisijeni ikenewe ntabwo isobanura byanze bikunze ko hazabaho ingaruka zavuzwe haruguru, kandi umwanzuro wanyuma ushobora kugerwaho hifashishijwe isesengura rirambuye. Kurugero, gusesengura ubwoko bwibinyabuzima, ni izihe ngaruka ibyo binyabuzima bigira ku bwiza bw’amazi n’ibidukikije, ndetse n’uko byangiza umubiri w’umuntu. Niba isesengura rirambuye ridashoboka, urashobora kandi gupima imiti ya ogisijeni ikenerwa nicyitegererezo cyamazi nyuma yiminsi mike. Niba agaciro kagabanutse cyane ugereranije nagaciro kambere, bivuze ko ibintu bigabanya amazi biri mubintu byoroshye kwangirika. Ibintu nkibi byangiza umubiri wumuntu kandi ibinyabuzima byangiza ni bike.
Uburyo busanzwe bwo kwangiza amazi ya COD
Kugeza ubu, uburyo bwa adsorption, uburyo bwa coagulation chimique, uburyo bwa electrochemicique, uburyo bwa okiside ya ozone, uburyo bwibinyabuzima, micro-electrolysis, nibindi nuburyo busanzwe bwo kwangiza amazi mabi ya COD.
Uburyo bwo kumenya COD
Kwihuta gusya kwihuta, uburyo bwa COD bwo kumenya isosiyete ya Lianhua, burashobora kubona ibisubizo nyabyo bya COD nyuma yo kongeramo reagent no gusya icyitegererezo kuri dogere 165 muminota 10. Nibyoroshye gukora, ifite dosiye nkeya ya reagent, umwanda muke, hamwe ningufu nke.