Izindaba - Kufanele Kuqashwe Kanjani Ukuchitheka Kwamanzi Angcolile Ezitshalweni Zamakhemikhali?

https://www.boquinstruments.com/news/how-should-the-discharge-of-wastewater-from-chemical-plants-be-monitored/

Ukukhula kwezimboni kuletha inani elingenakuphikwa kwezomnotho. Kodwa futhi kwethula umthwalo wemfanelo ongathi sína: ukulawula ukuchitheka kwamanzi angcolile. Ezitshalweni zamakhemikhali, lo mthwalo wemfanelo awuyona into ongayikhetha—uyalawulwa, uhlolwe, futhi uqashwe ngokwengeziwe ngesikhathi sangempela.

Ukungcola okungalawulwa kahle kwenza okungaphezu kokwephula izimvume. Kungcolisa imvelo, kusongela imithombo yamanzi okuphuza, futhi kulimaze ukwethenjwa komphakathi. Ngakho-ke, ukuqapha akukhona nje ukuthobela imithetho. Kumayelana nokulawula, ukuvimbela, kanye nokuziphendulela.

Lesi sihloko sihlola indlela ukukhishwa kwamanzi angcolile ezitshalo zamakhemikhali okufanele kuqashwe ngayo—kusukela ezinhlakeni zomthetho kuya ekusetshenzisweni kwemishini ngesikhathi sangempela—ngenkathi kukhulunywa ngemibuzo evame ukubuzwa embonini futhi kuhlanganiswa izixazululo ezisebenzayo kusetshenziswa izinhlelo zokuqapha ezithuthukisiwe.

1. Kungani Ukuqapha Amanzi Angcolile Kubalulekile Ezitshalweni Zamakhemikhali？

Amanzi angcolile amakhemikhali ayinkimbinkimbi. Ngokuvamile aqukethe amakhemikhali e-organic, izinsimbi ezisindayo, imikhiqizo enobuthi, kanye namazinga e-pH ashintshashintshayo. Ngaphandle kokuqapha okufanele, ngisho nokukhishwa okulungisiwe kungaba yingozi.

Ukuqapha kufeza izinjongo ezintathu ezibalulekile:

Ukuthobela imithetho: Gwema izinhlawulo, ukuvalwa, kanye nemiphumela yezomthetho
Ukuvikelwa kwemvelo: Vimbela umonakalo wemvelo kanye nokungcoliswa kwamanzi angaphansi komhlaba kanye nomhlaba
Ukulungiswa kokusebenza: Thola ukungasebenzi kahle futhi uthuthukise izinqubo zokwelapha

Eqinisweni, ukuqapha okuqhubekayo kuvumela izikhungo ukuthi ziqonde kahle ukuthi zikhipha ini nganoma yisiphi isikhathi—hhayi nje ngesikhathi sokuhlolwa kwelebhu okwenziwa ngezikhathi ezithile.

2. Izidingo Zokulawula kanye Nezindinganiso Zokukhipha Izindleko

Zonke izikhungo zamakhemikhali zisebenza ngaphansi kwemvume yokukhipha imfucuza. Lezi zimvume zichaza:

Ubuningi obukhulu obuvumelekile bokungcola
Ukuqapha imvamisa
Amapharamitha adingekayo

Amapharamitha ajwayelekile alawulwayo afaka:

Isidingo Se-Oksijini Yamakhemikhali (i-COD)
Isidingo Se-Oksijini Yezinto Eziphilayo (i-BOD)
pH
Ingqikithi Yezinto Eziqinile Ezimisiwe (i-TSS)
I-ammonia nitrogen (NH₃-N)
I-nitrogen iyonke (TN) kanye ne-phosphorus iyonke (TP)
Izinga lokugeleza

Lezi zinhlaka zaziwa kabanzi emithethweni yomhlaba wonke kanye neziqondiso zokuqapha.

Isibonelo, i-COD kanye ne-BOD ziyizinkomba ezibalulekile zokungcoliswa kwezinto eziphilayo. Amanani aphezulu anganciphisa umoya-mpilo emanzini atholayo, okulimaza impilo yasemanzini.

Ezifundeni ezifana neTaiwan neChina, imithethonqubo idinga kakhulu:

Izinhlelo zokuqapha ezizenzakalelayo ku-inthanethi
Ukudluliselwa kwedatha ngesikhathi sangempela kuziphathimandla
Ukudalulwa komphakathi kwedatha yokukhishwa

Lolu shintsho lubonisa ukuthambekela okubanzi komhlaba wonke: kusukela ekuthatheni amasampula ngezikhathi ezithile kuya ekuqapheni okuqhubekayo nokusobala.

https://www.boquinstruments.com/chemical-oxygen-demand-codcr-water-quality-online-automatic-analyzer-product/

3. Amapharamitha Abalulekile Okumele Aqashwe

Ukuqapha okuphumelelayo kuqala ngokukhetha amapharamitha afanele. Lawa angahlukaniswa ngezigaba ezine:

3.1 Izinkomba Zokungcola Kwezinto Eziphilayo

I-COD (Isidingo Se-Oxygen Yamakhemikhali)
I-BOD (Isidingo Se-Oksijini Yezinto Eziphilayo)
I-TOC (Ikhabhoni Ephelele Yemvelo)

I-COD ibaluleke kakhulu ngoba inikeza ukuqonda okusheshayo ngomthwalo wokungcola futhi ingaqashwa ngesikhathi sangempela.

3.2 Amapharamitha Angokoqobo

Izinga lokushisa
Ukuvuvukala
Ingqikithi Yezinto Eziqinile Ezimisiwe (i-TSS)
Ukuqhuba

Lezi zinhlaka zithinta kokubili ukusebenza kahle kokwelashwa kanye nomthelela emvelweni.

3.3 Amapharamitha Amakhemikhali

pH
I-oksijini Encibilikisiwe (DO)
I-ammonia nitrogen (NH₃-N)
I-nitrate ne-phosphate

Isibonelo, i-pH ithonya ngqo ukusabela kwamakhemikhali kanye namazinga obuthi ezinhlelweni zamanzi.

3.4 Izinto Ezingcolisayo Ezinobuthi Nezihlobene Nezimboni

Kuye ngenqubo yamakhemikhali:

Izinsimbi ezisindayo (isb., i-lead, i-mercury, i-chromium)
I-Cyanide
Ama-phenol
Amafutha namafutha

Lezi zingcolisi zivame ukudinga izinzwa ezikhethekile kanye nemikhawulo eqinile yokukhipha.

https://www.boquinstruments.com/ph8012-industrial-waste-water-ph-sensor-product/

4. Izindlela Zokuqapha: Kusukela Ekuhlolweni Ngesandla Kuya Ezinhlelweni Ezihlakaniphile

4.1 Ukusampula Kwesandla Kwendabuko

Ngokomlando, ukuqapha amanzi angcolile kwakuncike ku:

Thatha isampula
Ukuhlaziywa kwelabhorethri

Nakuba le ndlela inembile, inemikhawulo:

Ukulibaziseka kwesikhathi
Ingozi yokulahleka kwezehlakalo zokungcoliswa okukhulu
Iphutha lomuntu

4.2 Ukuqapha Okuqhubekayo Ku-inthanethi (Kuyanconywa)

Izitshalo zesimanje ziyamukela ngokusheshaizinhlelo zokuqapha eziku-inthanethi, enikeza:

Idatha yesikhathi sangempela
Izexwayiso ezizenzakalelayo
Ukulandelela okuqhubekayo kokuthobela imithetho

Lezi zinhlelo zihlanganisa izinzwa eziningi ukuze zilinganise amapharamitha ayisihluthulelo ngasikhathi sinye futhi zidlulisele idatha kumapulatifomu aphakathi.

Izinzuzo:

Ukutholwa ngokushesha kokuphuma okungavamile koketshezi
Izindleko zabasebenzi ezincishisiwe
Ukulawulwa kwenqubo okuthuthukisiwe
Ukubonakala kwemithetho

5. Ubuchwepheshe Obuyinhloko Obusetshenziswa Ekuqapheni Amanzi Angcolile

5.1 Ukuqapha Okusekelwe Ezinzwa

Izinzwa ezivamile zifaka:

izinzwa ze-pH(indlela ye-electrode yengilazi)
Abahlaziyi be-COD(Indlela ye-UV noma ye-dichromate)
Izinzwa ze-ammonia(ama-electrode akhetha ama-ion)
Izinzwa ze-DO(indlela ye-fluorescence)

Lezi zinzwa zenzelwe ukusebenza okuqhubekayo futhi zingakhipha amasignali okuhlanganiswa ezinhlelweni zokulawula.

5.2 I-Spectroscopy kanye ne-Advanced Analytics

Ubuchwepheshe obusha buhlanganisa:

I-Near-infrared spectroscopy (NIR)
Ukumuncwa kwe-UV-Vis
Ukuqapha ukukhanya

Lezi zindlela zithuthukisa ukunemba futhi zivumela ukutholakala okusheshayo kokungcola okuyinkimbinkimbi.

5.3 Izinhlelo Zedatha Ezihlakaniphile

Ukuqapha kwanamuhla akukhona nje ukulinganisa—kumayelanaubuhlakani bedatha:

Amapulatifomu asekelwe efwini
Amadeshibhodi okuqapha kude
Ukutholwa kwe-anomaly okuqhutshwa yi-AI

https://www.boquinstruments.com/online-uv-cod-bod-toc-sensor-product/

6. Kufanele Kufakwe Kuphi Amaphuzu Okuqapha?

Ukubekwa kwamasu kubalulekile. Ukuqapha kufanele kwenzeke ku:

Amanzi angcolile angenayo (angenayo)
Izigaba ezibalulekile zokwelapha
Indawo yokugcina yokukhipha

Ukuqapha ezindaweni eziningi kusiza ekuboneni imithombo yokungcola kanye nokwenza ngcono ukusebenza kahle kokwelashwa. Kuphinde kuvimbele ukuncibilika ekufihleni izindawo eziyinkinga.

7. Ukuhlanganiswa Nokuphepha Kwamanzi Okuphuza

Lokhu kuvame ukunganakwa—kodwa kubaluleke kakhulu.

Ukukhishwa kwamakhemikhali ezitshalweni kungathinta ngqo:

Imifula esetshenziselwa amanzi okuphuza
Amanzi angaphansi komhlaba
Imithombo yamanzi kamasipala

Ukuqapha amanzi angcolile ngendlela engafanele kungaholela ezenzakalweni zokungcola ezibeka engcupheni ukuphepha kwamanzi okuphuza.

Ngokwesibonelo:

Amazinga aphezulu e-ammonia angaphazamisa ukubulala amagciwane
Ukungcola kwezinto eziphilayo kwandisa isidingo se-chlorine
Amakhemikhali anobuthi angadlula ezinhlelweni zokwelapha

Ngakho-ke, ukuqapha amanzi angcolile kuhlobene ngokungaqondile—kodwa ngokuyisisekelo—noukutholakala kwamanzi okuphuza aphephile.

8. Imibuzo Evame Ukubuzwa Mayelana Nokuqapha Amanzi Angcolile

Q1: Iyiphi ipharamitha ebaluleke kakhulu?

Akukho mpendulo eyodwa. Kodwa-ke,I-COD, i-pH, kanye nesilinganiso sokugelezazibhekwa njengezinkomba eziyinhloko kuzo zonke izimboni.

Umbuzo 2: Amanzi angcolile kufanele aqashwe kangaki?

Ukusampula ngesandla: Nsuku zonke noma masonto onke
Ukuqapha ku-inthanethi: Okuqhubekayo (kunconywa)

Izinhlelo eziqhubekayo zinikeza isithombe esinembile kakhulu sokuguquguquka.

Umbuzo 3: Ingabe izitshalo ezincane zingathembela kuphela ekuhlolweni ngesandla?

Ngobuchwepheshe yebo. Empeleni, cha.

Ukuhlolwa ngesandla kukodwa kuyingozi yokulahlekelwa ukwanda kokungcola futhi kungase kungahlangabezani nokulindelwe kwemithetho yesimanje.

UMBUZO 4: Kwenzekani uma ukukhishwa kwempahla kudlula imingcele?

Imiphumela ihlanganisa:

Izinhlawulo nezijeziso
Ukuvalwa kokukhiqiza
Isenzo sezomthetho
Umonakalo wemvelo

Q5: Ungaqinisekisa kanjani ukunemba kokuqapha?

Ukulinganiswa okuvamile kwezinzwa
Ukuqinisekiswa ngokuhlolwa kwelebhu
Ukulungiswa okuvamile

Ukulinganisa kubalulekile, njengoba ukunemba kwenzwa kungahamba ngokuhamba kwesikhathi.

9. Izixazululo Zokuqapha Ezisebenzayo Zezitshalo Zamakhemikhali

Ukuze kuqaliswe uhlelo lokuqapha olusebenzayo, izitshalo zamakhemikhali kufanele zamukele:

9.1 Abahlaziyi Be-inthanethi Abanamapharamitha Amaningi

Lezi zinhlelo zilinganisa:

I-COD
I-nitrogen ye-ammonia
I-phosphorus ephelele
pH
I-oxygen encibilikisiwe

Zinikeza umbono ophelele wekhwalithi yamanzi angcolile ngesikhathi sangempela.

9.2 Amapulatifomu Okuqapha Ahlanganisiwe

Izinhlelo zesimanje zihlanganisa:

Izinzwa
Abaloga idatha
Amapulatifomu amafu

Lokhu kuvumela:

Ukuqapha okukude
Ukubika okuzenzakalelayo
Ukuthobela imithetho

9.3 Imishini Yokuqapha Enconywayo

Ukuze uthole izixazululo ezinokwethenjelwa nezikwazi ukukhuliswa, cabanga ngalokhu:

Abahlaziyi be-COD abaku-inthanethi bokuqapha umthwalo wezinto eziphilayo
Abahlaziyi be-nitrogen ye-ammonia yokulawula izakhamzimba
Amamitha ekhwalithi yamanzi anemingcele eminingi ukuze kuqashwe ngokugcwele

10. Imikhuba Emihle Yokuqapha Amanzi Angcolile Ngokuphumelelayo

Ukuqinisekisa impumelelo yesikhathi eside, izitshalo zamakhemikhali kufanele zilandele le mikhuba emihle kakhulu:

10.1 Hlanganisa Izindlela Eziku-inthanethi Nezelebhu

Sebenzisa izinhlelo eziku-inthanethi zokulawula ngesikhathi sangempela kanye nokuhlolwa kwelebhu ukuze kuqinisekiswe.

10.2 Ukuqapha Okungaphezu Kokuthobela Imithetho

Landelela imingcele eyengeziwe ukuze uthuthukise ukusebenza kahle kokwelashwa—hhayi nje ukuhlangabezana nezidingo eziyisisekelo.

10.3 Sebenzisa Izinhlelo Zokuxwayisa Kusenesikhathi

Setha imingcele nama-alamu ukuze uthole okungahambi kahle ngokushesha.

10.4 Gcina Futhi Ulinganisele Imishini

Ukugcinwa njalo kuqinisekisa ukuthembeka kwedatha kanye nokuhambisana nayo.

10.5 Abasebenzi Besitimela

Ngisho nezinhlelo ezinhle kakhulu zidinga opharetha abanekhono.

11. Izitayela Zesikhathi Esizayo Zokuqapha Amanzi Angcolile

Imboni ishintsha ngokushesha. Izitayela ezibalulekile zifaka:

Ukuqapha kokubikezela okuqhutshwa yi-AI
Izinzwa ezihlakaniphile ezinikwe amandla yi-IoT
Ukubika okuzenzakalelayo kokulawula
Ukuhlanganiswa nezizindalwazi zemvelo

Izinhlelo ezithuthukisiwe manje zihlanganisa ukuqapha kwamakhemikhali kanye nezinto eziphilayo ukuze kutholakale amakhemikhali anobuthi ngempumelelo enkulu ngesikhathi sangempela.

Isiphetho

Ukuqapha ukukhishwa kwamanzi amdaka ezitshalweni zamakhemikhali akuseyona into elula yokuthobela imithetho. Kuyinqubo eguquguqukayo, eqhutshwa idatha edinga ukunemba, ukuthembeka, kanye nokuqonda kwesikhathi sangempela.

Ukushintsha kusuka ekuthatheni amasampula ngesandla kuya ekuqapheni okuqhubekayo ku-inthanethi kumelela isinyathelo esikhulu sokuqhubekela phambili. Kuvumela: