Ngokutsho kohlelo luka-2018 lweShanghai Municipal Local Standard for Integrated Wastewater Discharge (DB31/199-2018), indawo yokukhupha amanzi amdaka yesityalo sokuvelisa umbane esisebenza yiBaosteel Co., Ltd. ikwindawo enamanzi abuthathaka. Ngenxa yoko, umda wokukhupha i-ammonia nitrogen uncitshisiwe ukusuka kwi-10 mg/L ukuya kwi-1.5 mg/L, kwaye umda wokukhupha izinto eziphilayo uncitshisiwe ukusuka kwi-100 mg/L ukuya kwi-50 mg/L.

Kwindawo yedama lamanzi engozi: Kukho amachibi amabini amanzi engozi kule ndawo. Kufakwe iinkqubo ezintsha zokujonga ngokuzenzekelayo ze-ammonia nitrogen kwi-intanethi ukuze kuqinisekiswe rhoqo amanqanaba e-ammonia nitrogen kumachibi amanzi engozi. Ukongeza, kufakwe ipompo entsha yokulinganisa i-sodium hypochlorite, eqhagamshelwe kwiitanki zokugcina i-sodium hypochlorite ezikhoyo kwaye iqhagamshelwe kwinkqubo yokujonga i-ammonia nitrogen. Olu lungiselelo lwenza ulawulo lokulinganisa ngokuzenzekelayo nangokuchanekileyo kuzo zombini amachibi amanzi engozi.

Kwinkqubo yokucoca amanzi kwiSigaba soku-1 sesikhululo sokucoca amanzi ngamachiza: Iinkqubo zokujonga ngokuzenzekelayo kwi-intanethi ze-ammonia nitrogen zifakiwe kwitanki yokucoca, itanki yamanzi amdaka ye-B1, itanki yamanzi amdaka ye-B3, itanki yamanzi amdaka ye-B4, kunye netanki ye-B5. Ezi nkqubo zokujonga ziqhagamshelwe nepompo yokulinganisa i-sodium hypochlorite ukuze kulawulwe ngokuzenzekelayo idosi kuyo yonke inkqubo yokucoca amanzi amdaka.

Izixhobo ezisetyenzisiweyo:

I-NHNG-3010 I-Automatic Ammonia Nitrogen Monitor kwi-Intanethi

Inkqubo yonyango lwangaphambi konyango lwe-YCL-3100 ekrelekrele yokuvavanya umgangatho wamanzi

Ukuze kuhambelane nemigangatho yokukhupha amanzi ehlaziyiweyo, isikhululo sokuvelisa umbane seBaosteel Co., Ltd. sifake izixhobo zokukhupha i-ammonia nitrogen kunye nokucoca amanzi amdaka kwindawo yokukhupha amanzi amdaka. Inkqubo yokucoca amanzi amdaka ekhoyo iye yaphuculwa kwaye yahlaziywa ukuqinisekisa ukuba zombini i-ammonia nitrogen kunye nezinto eziphilayo ziphathwa ngokufanelekileyo ukuze kuhlangatyezwane neemfuno ezintsha zokukhupha amanzi amdaka. Olu phuculo luqinisekisa unyango lwamanzi amdaka ngexesha elifanelekileyo kwaye lunciphisa kakhulu iingozi zokusingqongileyo ezinxulumene nokukhupha amanzi amdaka kakhulu.

Kutheni kuyimfuneko ukujonga amanqanaba e-ammonia nitrogen kwiindawo zokukhupha amanzi kwimizi-mveliso yentsimbi?

Ukulinganisa i-ammonia nitrogen (NH₃-N) kwiindawo zokukhupha isinyithi kubalulekile ekukhuseleni okusingqongileyo nasekuthobeleni imimiselo, njengoko iinkqubo zokuvelisa isinyithi ngokwemvelo zivelisa amanzi amdaka aqulethe i-ammonia abangela iingozi ezinkulu ukuba angakhutshwa ngendlela engafanelekanga.

Okokuqala, i-ammonia nitrogen inetyhefu kakhulu kwizinto eziphilayo zasemanzini. Nokuba iphantsi kakhulu, inokonakalisa ii-gill zeentlanzi nezinye izinto eziphilayo zasemanzini, iphazamise imisebenzi yazo ye-metabolic, kwaye ikhokelele ekufeni kwabantu abaninzi. Ngaphezu koko, i-ammonia egqithisileyo emanzini ibangela i-eutrophication—inkqubo apho i-ammonia iguqulwa ibe yi-nitrate yibhaktheriya, ikhuthaza ukukhula kwe-algae. Olu qhakazo lwe-algal luphelisa i-oksijini enyibilikisiweyo emanzini, idale "iindawo ezifileyo" apho uninzi lwezinto eziphilayo zasemanzini lungenakuphila, nto leyo echaphazela kakhulu iindawo eziphilayo zasemanzini.

Okwesibini, iifektri zentsimbi zibotshelelwe ngokusemthethweni yimigangatho yesizwe neyengingqi yokusingqongileyo (umz., i-Integrated Wastewater Discharge Standard yaseTshayina, i-Industrial Emissions Directive ye-EU). Le migangatho ibeka imida engqongqo kumanqanaba e-ammonia nitrogen emanzini amdaka akhutshiweyo. Ukubeka esweni rhoqo kuqinisekisa ukuba iifektri ziyahlangabezana nale mida, kuthintelwe izohlwayo, ukumiswa kokusebenza, okanye amatyala asemthethweni avela ekungathobelini imithetho.

Ukongeza, ukulinganiswa kwe-ammonia nitrogen kusebenza njengophawu oluphambili lokusebenza kakuhle kwenkqubo yokucocwa kwamanzi amdaka yesixhobo sokugawula. Ukuba amanqanaba e-ammonia adlula umgangatho, oko kubonisa iingxaki ezinokubakho kwinkqubo yokucocwa (umz., ukungasebenzi kakuhle kweeyunithi zonyango lwebhayoloji), okuvumela iinjineli ukuba zichonge kwaye zilungise iingxaki ngokukhawuleza—ukuthintela amanzi amdaka anganyangwanga okanye angaphathwanga kakuhle ukuba angangeni kwindawo esingqongileyo.

Ngamafutshane, ukujonga i-ammonia nitrogen ekuphumeni kwesinyithi sisenzo esisisiseko sokunciphisa umonakalo kwindalo, ukunamathela kwiimfuno zomthetho, kunye nokugcina ukuthembeka kweenkqubo zokucocwa kwamanzi amdaka.