Isihloko
Ukuhlolwa nge-methylene blue kobumba, izihlanganisi zamatshe nenhlabathi
Umkhiqizi kakhonkolo wenqaba isihlabathi esilethiwe ngoba inani laso le-methylene blue lidlula umkhawulo obekiwe. Umphakeli uyaphikisa: ilabhorethri yakhe ilinganise inombolo ephansi kuso leso sihlabathi. Womabili amalabhorethri asebenzise i-methylene blue. Womabili abike amagremu ngekhilogremu. Elilodwa kuphela elihlole ingxenye yezinhlayiya eshiwo ezimfunekweni, futhi lezi zinombolo ezimbili zazingaqhathaniseki nhlobo.
Le nkinga isuka endleleni ukuhlolwa okuqondwa ngayo. “Ukuhlolwa nge-methylene blue” kuzwakala sengathi kuyithuluzi elilodwa elinesikali esisodwa. Empeleni, kuyiqoqo lezinqubo ezisebenzisa idayi efanayo kodwa ezichaza izinto ezilinganisiwe ezihlukene: izinto ezihlukene, izingxenye zezinhlayiya ezinobukhulu obuhlukene, izindawo zokuphetha ezihlukene nezisekelo zokubika ezihlukene. Iphutha liwukuthatha igama ledayi elifanayo njengobufakazi bokuthi imiphumela iyafana. Izigaba ezingezansi zihlukanisa amalungu aleli qoqo ukuze umfundi akwazi ukufanisa indlela nento ehlolwayo, aqonde inombolo ngayinye ngokwesimo sayo.
Lokho idayi ekuhlolayo ngempela
I-methylene blue iyidayi ethwele ishaji ephozithivu. Amaminerali obumba anendawo engaphezulu esebenza kakhulu abamba le dayi ngokuqinile kuleyo ndawo, kuyilapho i-quartz nezinye izinhlayiya ezicolekile ezingasebenzi kakhulu zibamba okuncane kakhulu. Ngakho, ukufaka idayi kancane kancane engxubeni enezinhlayiya ezilenga oketshezini futhi enyakaziswayo kwenza i-titration yendawo engaphezulu esebenzayo: idayi engaboshiwe ivela esixazululweni kuphela ngemva kokuba izindawo ezisebenzayo sezigcwele. Yingakho ukuhlolwa kobumba nge-methylene blue kusabela ebuningini nasezicini zamaminerali obumba asebenzayo, kunokusabela kuphela engqikithini yezinhlayiya ezicolekile.
Kulandela imiphumela emibili. Okokuqala, umphumela uncike ezinhlayiyeni ezikhona engxenyeni ehlolwayo. Indlela ehlola ingxenye yezinhlayiya engu-0/2 mm nendlela ehlola uthuli olucoleke kakhulu kuphela zizokhipha izinombolo ezihlukene kusampula eyodwa yonke, ngoba ukugxila kobumba kuhlukile. Okwesibili, iyunithi ebikiwe iba nencazelo kuphela uma ihambisana naleyo ngxenye yezinhlayiya. Ukuthi lawo magremu edayi abalwa ngekhilogremu yayiphi into ngempela kuyingxenye yomphumela. Umhlahlandlela ohambisana nalo mayelana nezilinganiso zokubanjwa kwe-methylene blue endaweni engaphezulu uchaza kabanzi indlela lokhu kubanjwa okwenzeka ngayo.
Ukuhlolwa kwezihlanganisi zamatshe: i-EN 933-9 ichaza amanani amabili, hhayi elilodwa
Indlela eyinkomba yaseYurophu yi-EN 933-9, Ukuhlolwa kwezici zesimo nobukhulu bezihlanganisi zamatshe, Ingxenye 9: Ukuhlolwa kwezinhlayiya ezicolekile, Ukuhlolwa nge-methylene blue. Uhlelo lwamanje yi-EN 933-9:2022, oluthathe indawo yohlelo lwango-2009 kanye nesichibiyelo salo sango-2013, futhi ububanzi balo bufingqiwe engosini yezindinganiso ye-CEN ne-CENELEC. Le ndinganiso ichaza amanani amabili ahlukene. I-MB inqunywa engxenyeni yezinhlayiya engu-0/2 mm. I-MB_F, echazwe esithasiselweni esinezidingo ezibophezelayo, inqunywa engxenyeni yezinhlayiya engu-0/0.125 mm. Ukubiza umphumela we-0/2 mm ngokuthi “MB_F” kuyiphutha lokuhlukanisa isigaba, hhayi ukukhetha indlela yokusondeza inombolo.
Le nqubo ilengisa izinhlayiya zengxenye ehlolwayo emanzini angaba ngu-500 mL, bese ifaka idayi evela esixazululweni esingu-10 g/L ngesikhathi inyakazisa ingxube. Ngemva kokufakwa ngakunye, owenza ukuhlolwa ubeka iconsi lengxube ephepheni lokuhlunga elibekiwe. Indawo yokuphetha itholwa ngokuhlolwa kwechashazi okujwayelekile: idayi engaboshiwe ibonakala njengendilinga eluhlaza okwesibhakabhaka ngokukhanyayo, ecishe ibe ngu-1 mm ububanzi, ezungeze ichashazi eliphakathi, futhi ihlale imizuzu emihlanu. Umphumela ubikwa ngamagremu e-methylene blue ngekhilogremu yengxenye yezinhlayiya eyomile ehloliwe. Ngakho i-MB inamayunithi angu-g/kg wento engu-0/2 mm, kanti i-MB_F inamayunithi angu-g/kg wento engu-0/0.125 mm. Isihlabathi esifanayo singahlangabezana nezimfuneko njenge-MB kodwa sihluleke njenge-MB_F, okuyisizathu sokuthi izimfuneko kufanele zisho ngokuqondile ukuthi ziqonde liphi inani.
Izindlela zaseMelika zezihlanganisi zamatshe zisebenzisa izimiso ezihlukene
E-United States, izindlela ezimbili zihlola izinto ezifanayo kodwa zisebenzisa amathuluzi ahlukene. I-ASTM C1777-20, efakwe ohlwini yi-ASTM njengesasetshenziswa, inquma inani le-methylene blue lento edlula esisefweni esingu-4.75 mm (No. 4) ngokufunda ithuluzi lokulinganisa umbala ku-610 nm, esikhundleni sokuhlolwa kwechashazi ephepheni lokuhlunga. I-AASHTO T 330, etholakala esitolo se-AASHTO, igcina indawo yokuphetha yokuhlolwa kwechashazi ebonwa ngeso futhi ihlola ingxenye yezinhlayiya edlula ku-75 µm. Zombili zibika idayi ebanjiwe ngeyunithi yesisindo, okulingana ngokwamayunithi namagremu ngekhilogremu, kodwa i-ASTM ixwayisa ngokucacile ukuthi imiphumela ye-C1777, AASHTO T 330 ne-EN 933-9 ingahluka kakhulu. Izingxenye ezihlolwayo zichazwa ngezindlela ezihlukene, ukugxila kobumba kuhlukile, futhi ukufunda umbala ngethuluzi akuyona inqubo efanayo nokwahlulela indilinga esephepheni.
Ngakho kumthengi wesihlabathi, ukuchazwa okusebenzisekayo kokuhlolwa kwezihlanganisi zamatshe nge-methylene blue kuncike ezimweni: inombolo ihlunga ukutholakala kobumba olusebenzayo oluyingozi engxenyeni yezinhlayiya ebekiwe, ngaphansi kwenqubo ebekiwe. Ilabhorethri ehlola ingxenye yezinhlayiya ehlukile, noma efunda indawo yokuphetha ngesimiso esihlukile, yenza ukuhlolwa okuhlukile ngisho noma ibhodlela ledayi lifana.
Ukuhlolwa kwenhlabathi: i-VBS yaseFrance ngeyemisebenzi yomhlabathi, hhayi ukhonkolo
Inhlabathi inelungu layo kuleli qoqo. Inani eliluhlaza lenhlabathi, elibizwa ngokuthi valeur de bleu de sol futhi lifushaniswa ngokuthi VBS, lilinganisa i-methylene blue ebanjwa yinhlabathi ukuze ihlukaniswe ngezigaba emisebenzini yomhlabathi nasekwakhiweni kwemigwaqo. Inqubo eyayisetshenziswa ngaphambilini yindinganiso yaseFrance i-NF P94-068, efakwe kukhathalogi ye-AFNOR. Leyo ndinganiso yango-1998 ihoxisiwe futhi yathathelwa indawo yi-NF EN 17542-3:2022, ngakho inqubo ecaphuna i-NF P94-068 ngaphandle kokuhlola uhlelo lwamanje isebenzisa umbhalo osuthathelwe indawo.
Ukuhlolwa kwechashazi kwe-VBS kufana nokuhlolwa kwechashazi kwezihlanganisi zamatshe: idayi ifakwa ngokulandelana engxubeni yenhlabathi namanzi, kubekwe amaconsi ephepheni lokuhlunga kuze kuvele indilinga ehlala ikhona emaphethelweni. Kodwa into elinganisiwe ihlukile. Ilabhorethri ihlola ingxenye engu-0/5 mm, futhi ngokujwayelekile i-VBS ibikwa ngamagremu edayi eluhlaza nge-100 g yenhlabathi eyomile, kubhekiswe entweni engu-0/50 mm. Ungaguquli i-VBS ibe yinani le-MB le-EN 933-9 ngokuphindaphinda noma ngokuhlukanisa ngeshumi. Isici seshumi siguqula amayunithi; asiguquli ingxenye yezinhlayiya, ukulungiselela noma indlela yokubeka umphumela esisekelweni esifanayo. I-VBS yenhlabathi ne-MB yezihlanganisi zamatshe ziphendula imibuzo yobunjiniyela ehlukene, futhi umkhawulo ngamunye ungowendlela yawo.
I-bentonite nodaka lokubhola: ukusebenza nomthamo wokubamba, hhayi ukuhlanzeka
Igatsha lesithathu laleli qoqo alihlangene nokwamukela noma ukwenqaba izihlanganisi zamatshe. Eketshezini lokubhola, ukuhlolwa kodaka lokubhola nge-methylene blue kulinganisa ukuthi lungakanani ubumba olusabelayo oseluvele lukhona odakeni, kokubili i-bentonite ethengiswayo nezinhlayiya eziqinile ezisabelayo eziphuma ekubholeni, futhi kulinganisela umthamo ophelele wokushintshana kwama-cation. Inqubo yamanje iku-API RP 13B-1, Ukuhlolwa koketshezi lokubhola olusekelwe emanzini, uhlelo lwayo lwesithupha olungolukaJanuwari 2026; ikhathalogi yezindinganiso ye-API ingumthombo ogunyaziwe wohlelo olusebenzayo. Isampula yodaka yenziwa ibe ne-asidi futhi iphathwe nge-hydrogen peroxide ukuze kususwe izinto eziphilayo eziphazamisa ukuhlolwa, bese kwenziwa i-titration ngedayi kuze kufinyelelwe endaweni yokuphetha yendilinga ephepheni lokuhlunga. Umphumela, umthamo wokubamba i-methylene blue, ubikwa ngevolumu yoketshezi lokubhola futhi ungaguqulwa ube yinani elilingana ne-bentonite ngaphansi kwemibandela eshiwo mayelana nomthamo we-bentonite wokushintshana.
I-bentonite eyomile ngokwayo iphinde ichazwe ngendlela ehlukile. I-API RP 13I ihlanganisa ukuhlolwa kwaselabhorethri, kuhlanganise nenqubo ye-methylene blue ku-bentonite ehlakazwe oketshezini, ebika isilinganiso somthamo wokushintshana ngama-milliequivalent nge-100 g. I-ASTM C837, Indlela Ejwayelekile Yokuhlola Inkomba Ye-Methylene Blue Yobumba, okubuyekezwa kwayo kwamanje kuyi-C837-09(2024) futhi okusasetshenziswa, ilinganisa ukubanjwa kwedayi endaweni engaphezulu yobumba uqobo, futhi ichaza le nkomba njengehlobene nomthamo wokushintshana kwama-cation nezinye izici zobumba. Lezi yizilinganiso zokusebenza kobumba. Ukusebenzisa umkhawulo wokuhlanzeka kwezihlanganisi zamatshe enkombeni ye-bentonite, noma umthamo we-bentonite odakeni lokubhola, kuphinda iphutha lokuqala ngezinto ezintsha.
Ukuqhathaniswa kwezindlela
Ithebula elilandelayo liyisikhombo esiyinhloko sale ndatshana. Ngaphambi kokuqhathanisa izinombolo ezimbili, qinisekisa ukuthi imigqa iyahambelana.
| Indlela (uhlelo lwamanje ngesikhathi sokubhala) | Into ehlolwayo nengxenye yezinhlayiya ehloliwe | Indawo yokuphetha | Amayunithi omphumela nesisekelo sokubika |
|---|---|---|---|
| EN 933-9:2022, MB | Izihlanganisi zamatshe, ingxenye yezinhlayiya engu-0/2 mm | Ukuhlolwa kwechashazi, indilinga ehlala 5 min | g/kg wento eyomile engu-0/2 mm |
| EN 933-9:2022, MB_F (isithasiselo) | Izihlanganisi zamatshe, ingxenye yezinhlayiya engu-0/0.125 mm | Ukuhlolwa kwechashazi, indilinga ehlala 5 min | g/kg wento eyomile engu-0/0.125 mm |
| ASTM C1777-20 | Izihlanganisi zamatshe ezicolekile noma isigcwalisi samaminerali esidlula ku-4.75 mm (No. 4) | Ithuluzi lokulinganisa umbala ku-610 nm | mg/g wengxenye ehloliwe, okulingana ngenombolo no-g/kg |
| AASHTO T 330 | Ingxenye yezihlanganisi zamatshe ezicolekile edlula ku-75 µm | Ukuhlolwa kwechashazi | Isisindo sedayi ngesisindo sengxenye ehloliwe |
| NF EN 17542-3:2022, VBS (ethatha indawo ye-NF P94-068:1998) | Inhlabathi, kuhlolwa ingxenye engu-0/5 mm, kubikwe ngesisekelo se-0/50 mm | Ukuhlolwa kwechashazi | g wedayi eluhlaza nge-100 g yenhlabathi eyomile |
| API RP 13B-1 (uhlelo lwesi-6, 2026), MBC | Uketshezi lokubhola olusekelwe emanzini njengoba lusampuliwe | Ukuhlolwa kwechashazi odakeni oluphathwe | Ngevolumu yoketshezi, okungaguqulwa kube yinani elilingana ne-bentonite |
| API RP 13I / ASTM C837-09(2024) | I-bentonite noma ubumba uqobo | Ukuhlolwa kwechashazi / inkomba yokubanjwa endaweni engaphezulu | meq/100 g (isilinganiso se-CEC) / inkomba ye-methylene blue yobumba |
Hlola uhlelo lwendinganiso ngayinye ngaphambi kokushicilela inqubo evela kuleli thebula. Izindinganiso ziyabuyekezwa, futhi leli thebula libhala izinhlelo eziqinisekiswe ngesikhathi socwaningo, hhayi uhlu lwezikhombo oluhlala lunjalo. Ukusetshenziswa okuhlobene kwale dayi ekuhlolweni kwezinto, kuhlanganise nezivivinyo zolwelwesi nama-polymer, kuchazwe emhlahlandleleni ohambisana nalo mayelana nokuhlolwa kwezinto nge-methylene blue.
Kungani umkhawulo wenye indlela ungadluliselwa kwenye
Buyela esihlabathini esenqatshiwe. Ake sithi umkhawulo wezimfuneko wawubhalelwe i-EN 933-9 MB ku-0/2 mm, kuyilapho ilabhorethri yomphakeli ibike i-MB_F ku-0/0.125 mm, noma inani elilinganiswe ngombala ngaphansi kwe-ASTM C1777. Ingxenye yezinhlayiya ecoleke kakhudlwana igxilisa ubumba, ngakho ngokwemvelo yokuhlolwa inombolo yayo iba phezulu; ithuluzi lokulinganisa umbala lifunda isignali ehlukile kuleyo yendilinga. Noma yikuphi kwalokhu kungahambelani kukodwa kungaguqula ukuphumelela kube ukuhluleka. Impikiswano ayiphathelene nokuthi ubani owenze i-titration kangcono. Iphathelene nezinto ezimbili ezilinganisiwe ezihlukene ezisebenzisa igama ledayi elifanayo.
Ngakho umthetho uqine kakhulu. Umkhawulo wezimfuneko usebenza kuphela endleleni, engxenyeni yezinhlayiya nasesisekelweni sokubika owakhiwe ngakho. Ukusungula umkhawulo ngaphansi kwendlela ethatha indawo yenye kudinga ukuhlobana okusekelwe ekuhlolweni kwangempela kwezinto ezimele ezinye ezihlolwe ngazo zombili izindlela, hhayi ukuguqulwa kwamayunithi. Futhi ngenxa yokuthi ukuhlolwa kobumba olusebenzayo nge-methylene blue kusabela ezicini zobumba kanye nasebuningini balo, ngisho nokuhlobana okuhle kwezinto ezivela emthonjeni owodwa wokwakheka komhlaba kungase kungasebenzi komunye.
Uhlu olufushane lokuhlola ngaphambi kokuhlolwa
Bhala phansi into ehlolwayo, indinganiso nonyaka wohlelo lwayo, ingxenye yezinhlayiya ehlolwayo, umthetho wendawo yokuphetha nesisekelo sokubika ngaphambi kokulungiselela noma yisiphi isixazululo. Qinisekisa nenhlangano ekhipha indinganiso ukuthi uhlelo olucashuniwe luyilona lwamanje. Bese ulungiselela ukugxila kwedayi, ukulinganiswa kwamathuluzi nezilawuli ezihambisana naleyo ndlela. Umbiko osho zonke lezi zinto ezinhlanu uvumela noma yimuphi umfundi ukuba aphinde enze isilinganiso futhi uvimbele igama ledayi ukuba lenze umsebenzi okufanele wenziwe yincazelo yendlela.