Ngokohlelo lwe-2018 loMgangatho weNgingqi kaMasipala waseShanghai wokuDityaniswa kwaManzi amdaka aDityanisiweyo (DB31/199-2018), indawo yokukhutshwa kwamanzi amdaka yomzi-mveliso wokuvelisa umbane osetyenziswa yi-Baosteel Co., Ltd. ibekwe kwindawo ebuthathaka yamanzi. Ngenxa yoko, umda wokukhupha i-ammonia nitrogen uncitshisiwe ukusuka kwi-10 mg / L ukuya kwi-1.5 mg / L, kwaye umda wokukhutshwa kwezinto eziphilayo uthotywe ukusuka kwi-100 mg / L ukuya kwi-50 mg / L.

Kwindawo yedama lengozi yamanzi: Kukho amachibi amanzi engozi amabini kule ndawo. Iinkqubo ezintsha zokujonga kwi-intanethi ezizenzekelayo ze-ammonia nitrogen zifakelwe ukwenza ukuba kubekwe iliso rhoqo kumanqanaba e-ammonia nitrogen kumadama amanzi engozi. Ukongeza, i-sodium hypochlorite dosing pump entsha ifakiwe, edityaniswe neitanki ekhoyo yokugcina i-sodium hypochlorite kwaye idityaniswe nenkqubo yokubeka iliso ye-ammonia nitrogen. Olu lungelelwaniso luvumela ulawulo lokudosa oluzenzekelayo noluchanekileyo kuzo zombini iidama zengozi zamanzi.

Kwinkqubo yokucocwa kwe-drainage yeSigaba soku-I sesikhululo sokucocwa kwamanzi ngemichiza: Iinkqubo zokujonga okuzenzekelayo kwi-intanethi ye-ammonia nitrogen zifakwe kwitanki yokucacisa, itanki yamanzi amdaka e-B1, itanki lamanzi amdaka e-B3, itanki yamanzi amdaka e-B4, kunye netanki ye-B5. Ezi nkqubo zokubeka iliso zidityaniswe kunye nepompo yedosi ye-sodium hypochlorite ukwenza ulawulo lwedosi oluzenzekelayo kuyo yonke inkqubo yokucoca amanzi.

Izixhobo ezisetyenzisiweyo:

I-NHNG-3010 kwi-Intanethi ezenzekelayo i-Ammonia yeNitrogen Monitor

YCL-3100 Intelligent inkqubo pretreatment yomgangatho wamanzi isampuli

Ukuthobela imigangatho ehlaziyiweyo yokulahla, umzi-mveliso wokuvelisa amandla we-Baosteel Co., Ltd. ufake i-ammonia nitrogen yokutsalwa kunye nezixhobo zokucoca kwangaphambili kwindawo yokukhupha amanzi amdaka. Inkqubo ekhoyo yokucocwa kwamanzi amdaka iye yaphuculwa kwaye yalungiswa ukuqinisekisa ukuba zombini i-ammonia nitrogen kunye ne-organic matter ziphathwa ngokufanelekileyo ukuhlangabezana neemfuno ezintsha zokukhupha. Olu phuculo luqinisekisa ukucocwa kwamanzi amdaka kwangexesha nangendlela esebenzayo kwaye lunciphisa kakhulu umngcipheko wokusingqongileyo onxulumene nokukhutshwa kwamanzi amdaka ngokugqithisileyo.

Kutheni kuyimfuneko ukubeka esweni amanqanaba e-ammonia nitrogen kwiindawo zokukhupha amanzi eentsimbi zetsimbi?

Ukulinganisa i-ammonia nitrogen (NH₃-N) ekuphumeni kwentsimbi yentsimbi ibalulekile ekukhuselweni kwendalo kunye nokuthotyelwa kwemimiselo, njengoko iinkqubo zokuvelisa intsimbi ngokwemvelo zivelisa amanzi amdaka aqulethe i-ammonia abeka imingcipheko ebalulekileyo xa ekhutshwe ngokungafanelekanga.

Okokuqala, i-ammonia nitrogen inetyhefu kakhulu kwizinto eziphila emanzini. Nakwiqondo eliphantsi, inokonakalisa iigill zentlanzi kunye nezinye izinto eziphilayo zasemanzini, ziphazamise imisebenzi yazo ye-metabolic, kwaye zikhokelela ekufeni kwabantu abaninzi. Ngaphezu koko, ubuninzi be-ammonia emanzini kubangela i-eutrophication-inkqubo apho i-ammonia iguqulwa ibe yi-nitrate yibhaktheriya, ibangela ukwanda kwe-algae. Le bloom ye-algal ichitha ioksijini enyibilikisiweyo emanzini, idala "imimandla efileyo" apho uninzi lwezidalwa zasemanzini zingakwazi ukuphila, ngokugqithisileyo i-ecosystems yasemanzini.

Okwesibini, iindawo zokusila zentsimbi zibotshelelwe ngokusemthethweni ngokwemigangatho yesizwe neyengingqi yokusingqongileyo (umz., iChina's Integrated Wastewater Discharge Standard, i-EU's Industrial Emissions Directive). Le migangatho ibeka imida engqongqo kugxininiso lwe-ammonia nitrogen kumanzi amdaka akhutshiweyo. Ukubeka iliso rhoqo kuqinisekisa ukuba ii-mills ziyayifezekisa le mida, ukuphepha iifayini, ukumiswa komsebenzi, okanye uxanduva lomthetho olubangelwa ukungathobeli.

Ukongeza, imilinganiselo ye-ammonia nitrogen isebenza njengesalathisi esisebenzayo senkqubo yokucoca amanzi amdaka kwindawo yokusila. Ukuba amanqanaba e-ammonia angaphezulu komgangatho, ibonakalisa imiba enokubakho kwinkqubo yonyango (umzekelo, ukungasebenzi kakuhle kweeyunithi zonyango lwebhayoloji), ukuvumela iinjineli ukuba zichonge kwaye zilungise iingxaki ngokukhawuleza-ukuthintela amanzi amdaka angacocwanga okanye angacocwanga kakuhle ukuba angangeni kwindawo engqongileyo.

Ngamafutshane, ukubeka esweni i-ammonia nitrogen ekuphumeni kwentsimbi yinkqubo esisiseko yokunciphisa umonakalo kwindalo, ukuthobela iimfuno zomthetho, kunye nokugcina ukuthembeka kweenkqubo zokucocwa kwamanzi amdaka.