التفاصيل البيبلوغرافية
| العنوان: |
REMOVAL OF METHOMYL FROM AQUEOUS SOLUTIONS USING THERMAL REGENERATED CARBON MICROSPHERES. |
| Alternate Title: |
UKLANJANJE METOMILA IZ VODENIH RASTVORA UPOTREBOM TERMIČKI REGENERISANIH UGLJENIČNIH MIKROSFERA. (Croatian) |
| المؤلفون: |
Stojković, Branislav, Dinić, Denis, Stupar, Stevan, Tomašević, Anđelka, Mijin, Dušan, Stojisavljević, Peđa, Ivanković, Negovan |
| المصدر: |
Proceedings of the International Congress on Process Engineering - Processing; 2024, p109-117, 9p |
| مصطلحات موضوعية: |
METHOMYL, AQUEOUS solutions, MICROSPHERES, PESTICIDES, FREUNDLICH isotherm equation |
| Abstract (English): |
Methomyl is a widely used carbamate pesticide, which has been extensively used over the past 60 years, primarily as an insecticide, but also as an herbicide and fungicide. Methomyl production involves a series of complex reactions. During its synthesis, wastewater from pesticide manufacturing plants can contaminate aqueous media. This study provides the results of investigation of effectiveness of methomyl removal from aqueous solutions by adsorption using the thermally regenerated microspheres of activated carbon (RAC). The microstructure of the adsorbent surface was examined by scanning electron microscopy (SEM). The change in the relative concentration of the pesticide in the aqueous solution was monitored using UV-Vis spectrophotometry. Methomyl adsorption kinetics and isotherms of regenerated activated carbon microspheres fit the pseudo-first-order and Freundlich models. The pseudo-first-order rate constant is 0.0105 min-1 at a temperature of 25 °C. By determinig the thermodynamic parameters of adsorption, it can be concluded that the process is spontaneous and exothermic. [ABSTRACT FROM AUTHOR] |
| Abstract (Croatian): |
Metomil je široko rasprostranjen karbamatni pesticid, koji je u velikoj meri korišćen u poslednjih 60 godina prvenstveno kao insekticid, ali i kao herbicid i fungicid. Proizvodnja metomila uključuje niz složenih reakcija. Tokom njegove sinteze, otpadne vode iz fabrika za proizvodnju pesticida mogu kontaminirati vodene tokove. U ovom radu prikazani su rezultati ispitivanja efikasnosti uklanjanja metomila iz vodenih rastvora, adsorpcijom, korišćenjem termički regenerisanih mikrosfera aktivnog uglja (RAC). Mikrostruktura površine adsorbenta ispitana je skenirajućom elektronskom mikroskopijom (SEM). Promena relativne koncentracije pesticida u vodenom rastvoru praćena je pomoću UV vidljive spektrofotometrije. Kinetika adsorpcije metomila i izoterme regenerisanih mikrosfera aktivnog uglja odgovaraju modelima pseudo-prvog reda i Frojndlihovog modela. Konstanta brzine pseudoprvog reda iznosi 0.0105 min-1 na temperaturi od 25 °C. Određivanjem termodinamičkih parametara adsorpcije može se zaključiti da je proces spontan i egzotermne prirode. [ABSTRACT FROM AUTHOR] |
|
Copyright of Proceedings of the International Congress on Process Engineering - Processing is the property of Union of Mechanical & Electrotechnical Engineers & Technicians of Serbia (SMEITS) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |