Ukuhlolwa Kobuthi Be-Sodium Cyanide kanye Nezinyathelo Zokuvimbela Izingozi Ezifanelekile

I-Sodium cyanide (NaCN), njengento yamakhemikhali enobuthi obukhulu, idlala indima engenakuphikwa emkhakheni wezimboni, njengokumbiwa kwegolide, ukufakelwa kwe-electroplating, kanye nokuhlanganiswa kwemithi. Kodwa-ke, izingozi zayo zobuthi ezingaba khona ziwusongo olukhulu empilweni yabantu kanye nemvelo. Lesi sihloko sizohlaziya ngokuhlelekile indlela yobuthi, ukubonakaliswa kwezingozi, kanye nezinyathelo zokuvimbela i- Sodium Cyanide , sinikeze isisekelo sesayensi sokuphathwa kokuphepha.

I. Indlela Yobuthi Nezingozi Zezempilo

1. Ubuthi Acute

Ubuthi be -sodium cyanide buvela kakhulu kwi-cyanide ion (CN⁻) ehlukanisiwe nayo. I-CN⁻ ingabangela ubuthi ngezindlela ezilandelayo:

• Ukuvimbela Ukuphefumula Kwamaseli : Kubopha i-cytochrome oxidase ku-mitochondria, kuvimbele uchungechunge lokuthuthwa kwama-electron futhi kuvimbele izicubu ekusebenziseni umoya-mpilo ("i-intracellular asphyxia").

• Isenzo Esisheshayo : Umthamo obulalayo womlomo cishe u-1-2 mg/kg (ubalwa njenge-CN⁻), futhi ukuphefumula noma ukuthinta isikhumba ngesisombululo esinokugxila okuphezulu nakho kungaba yingozi.

• Izimpawu Ezijwayelekile :

• Ubuthi obuncane: Ikhanda elibuhlungu, isicanucanu, i-dyspnea, ukudideka;

• Ubuthi Obunzima: Ukudlikizeka, ukukoma, ukuboshwa kwenhliziyo, nokufa ngokuvamile kwenzeka phakathi nemizuzu embalwa.

2. Ubuthi obungapheli

Ukuchayeka isikhathi eside kumithamo ephansi kungaholela kulokhu:

• Ukulimala Kwezinzwa : Ukulahlekelwa yinkumbulo, i-peripheral neuritis;

• Ukungasebenzi Kahle Kwe-thyroid : I-CN⁻ iphazamisa ukusebenza kwe-iodine, okuholela ku-goiter noma i-hypothyroidism;

• Ubuthi Bokuzala : Ukuhlolwa kwezilwane kubonisa ukuthi kungathinta intuthuko yesistimu yokuzala.

II. Izingozi Zemvelo kanye Nezingozi Zemvelo

1. Ubuthi Ezilwaneni Ezisemanzini

I-sodium cyanide izwela kakhulu ezintweni eziphila emanzini. Ngokwesibonelo:

Inhlanzi : Isilinganiso esiphakathi sokubulala (LC₅₀) siphansi njengo-0.05-0.5 mg/L (kubalwa njenge-CN⁻);

I-Plankton : 0.01 mg/L ingavimbela i-photosynthesis.

Ngokomlando, ingozi yokuvuza yemayini yegolide i-Baia Mare eRomania ngo-1995 yabangela ukufa kwezinhlanzi eziningi eMfuleni iDanube, futhi kwathatha iminyaka eminingana ukubuyiselwa kwemvelo.

2. Ukungcoliswa Kwenhlabathi Namanzi Angaphansi

• Ukuhamba : Kuzinzile enhlabathini ene-alkaline, kodwa kungenzeka ukuthi kukhiqize igesi ye-HCN enobuthi kakhulu ngaphansi kwezimo ze-acidic;

• Ukubola kwe-bio : Amanye ama-microorganisms angaguqula i-CN⁻ ibe yi-formamide (NH₂CHO) nge-cyanide hydrolase, kodwa izinga lokubola linqunyelwe yizimo zemvelo.

III. Izinyathelo Zokuvimbela Izingozi

1. Izilawuli zobunjiniyela

• Uhlelo Oluvaliwe : Sebenzisa imishini yokukhiqiza evalwe ngokuphelele ukuze unciphise ingozi yokuchayeka ku-cyanide;

• Umklamo Wokungenisa Umoya : Hlomisa ngohlelo lokungenisa umoya olusebenzayo ukuqinisekisa ukuthi ukugcwala kwe-cyanide endaweni yokusebenza kuphansi kunomkhawulo wokuchayeka emsebenzini (njengo-5 mg/m³ ochazwe yi-OSHA);

• Ubuchwepheshe Bokuzenzakalela : Sebenzisa amarobhothi noma isilawuli kude ukuze unciphise ukusebenza ngesandla.

2. Izinto Zokuzivikela Zomuntu Siqu (PPE)

• Ukuvikelwa Kokuphefumula : Sebenzisa umshini wokuphefumula one-gas filter canister (njenge-gas filter canister yohlobo A), futhi ugqoke umshini wokuphefumula ozimele (SCBA) uma kwenzeka isimo esiphuthumayo;

• Ukuvikelwa Kwesikhumba : Gqoka izingubo zokuvikela zamakhemikhali namagilavu ​​(indwangu kufanele imelane nokungena kwe-cyanide, njengerabha ye-nitrile);

• Ukuvikelwa Kwamehlo : Gqoka izibuko zokuphepha zamakhemikhali noma isivikelo sobuso.

3. Izinyathelo Zokuphatha

• Ukuqeqeshwa kanye Nesitifiketi : Qhuba njalo ukuqeqeshwa ngokusebenza okuphephile kwe-cyanide kubasebenzi, futhi bangaba semsebenzini kuphela ngemva kokuphumelela ukuhlolwa;

• Uhlelo Lwelayisensi : Lawula ngokuqinile ukuthengwa, ukugcinwa, kanye nokuthuthwa kwe-cyanide, bese usebenzisa ukuphathwa "kwabantu ababili kanye nokukhiya kabili";

• Ukuqapha kanye Nempendulo Ephuthumayo : Faka inzwa ye-cyanide eku-inthanethi, thola njalo ukugcwala emoyeni nasemanzini, bese uhlela uhlelo lokuphendula ngokuphuthumayo oluvuzayo.

4. Ukwelashwa Okuphuthumayo

• Ukulahlwa Kokuvuza :

1.Masinyane hlukanisa indawo engcolisiwe bese usika umthombo wokuthungela (i-HCN iyavutha);

2.Hlikihla ngenani eleqile le-sodium hypochlorite noma isixazululo se-sodium thiosulfate:

CN⁻ + ClO⁻ → CNO⁻ + Cl⁻ (okuqhubeka ku-oxidized ku-CO₂ kanye ne-N₂);

3. Gcoba uketshezi olusele (njengokusebenzisa i-Carbon esebenzayo ) ukuvimbela ukusabalala kokungcola.

• Usizo Lokuqala Lokubangela Ubuthi :

1.Suka ngokushesha endaweni futhi ugcine umgudu wokuphefumula ungaphazamiseki;

2.Sebenzisa ngokushesha i-antidote (njengokuhogela i-amyl nitrite + umjovo we-intravenous we-sodium thiosulfate);

3.Yenza i-cardiopulmonary resuscitation (CPR) kuze kufike ukuhlenga kochwepheshe.

IV. Ukuqamba Okusha Kwezobuchwepheshe kanye namathrendi esikhathi esizayo

1. Ukufaka esikhundleni Sezinqubo ezingena-Cyanide

• Ukukhishwa kwegolide : Indlela yokukhipha i-Thiourea, indlela yokukhipha i-biological (kusetshenziswa ama-microorganisms ukubola ama-ore);

• Imboni Yokucwebezela Ngogesi : Sebenzisa ama-electrolyte angenayo i-cyanide njenge-zincate ne-citrate.

2. Uhlelo Lokuqapha Lwedijithali

Gada ukugxiliswa kwe-cyanide ngesikhathi sangempela nge-inthanethi Yezinto (IoT) kanye nobuhlakani bokwenziwa (AI), futhi uthuthukise ikhono lesexwayiso sokuvuza ngaphambi kwesikhathi ngokuhlanganisa nokuhlolwa kwe-drone.

3. Ukuthuthukiswa Kwemithethonqubo Namazinga

• Imithetho Yomhlaba Wonke : Ukuthobela i-International Cyanide Management Code (ICMI) ukuze kuqiniswe ukuthobela imvelo;

• Izindinganiso zaseShayina : GB 31574-2015 "Izindinganiso Zokukhipha Izinto Ezingcolisayo Zemboni Yamakhemikhali Engadali Imvelo" zikhawulela ngokuqinile ukukhishwa kwe-cyanide.

V. Isiphetho

Izingozi zobuthi be- Sodium cyanide azinakwa, kodwa ngokuphathwa kwesayensi, ukusungula izinto ezintsha kwezobuchwepheshe, kanye nokuqapha okuqinile, izingozi zayo zingalawulwa ngempumelelo. Esikhathini esizayo, ngokwandiswa kwezinqubo eziluhlaza kanye nokuthuthukiswa kobuchwepheshe bokuqapha obuhlakaniphile, ukusetshenziswa okuphephile kwe-cyanide kuzofinyelela ezingeni eliphakeme. Amabhizinisi kudingeka anamathele esimisweni "sokuvimbela kuqala, ukulawulwa kwengozi", futhi afeze ngempumelelo imithwalo yawo yemfanelo yomphakathi ngenkathi ephishekela izinzuzo zomnotho ukuqinisekisa impilo yabantu kanye nokuphepha kwemvelo.