بررسي مقايسه‌اي راندمان فرايند الکتروپرسولفات و فرايند الکتروفنتون در حذف فنل از محيط‌هاي آبي
Journal Title: آب و فاضلاب - Year 2016, Vol 27, Issue 5
Abstract
Investigation of Phenol Removal from Aqueous Solutions by Electrofenton and Electropersulfate Processes Phenol, or benzene hydroxyl is a toxic aromatic hydrocarbon discharged into the environment through certian industrial effluents which, thereby, pollute water resources. This study examines phenol removal from aqueous solutions through electro-Fenton and electro/persulfate processes using iron electrodes. For this purpose, a laboratory-scale electrochemical batch reactor was used that was equipped with four electrodes and a direct DC power supply. In the tests carried out, the effects of operational parameters such as initial pH; current density; and initial concentrations of phenol, hydrogen peroxide, and persulfate on the removal of phenol were investigated. The results showed that EPS and EF processes achieved phenol removal efficiencies of 95.18% and 93.99%, respectively, at operating conditions of pH = 3, initial phenol concentration of 100 mg/l, hydrogen peroxide and persulfate concentration of 0. 4 mM, and a current density 0.07A/dm2 over 45 min. Increasing persulfate and hydrogen peroxide concentration from 0.4 to 0.8 mM reduced phenol removal efficiencies from 95.18% and 93.99% to 43% and 85%, respectively. Generally speaking, EPS and EF processes exhibited almost identical phenol removal efficiencies. Finally, the integrated electrochemical and persulphate process was found to be more productive in producing electrical iron and persulphate activation than using each single process in isolation.
Authors and Affiliations
Alireza Rahmani, Somayeh Akbari, Fahimeh Zamani, Zeinab Masoumi, Roya Harati, Halimeh Almasi, Amir Shabanlo
Keywords
Related Articles
- EP ID EP179467
- DOI -
- Views 97
- Downloads 0
بررسي کارايي فرايند الکتروپرسولفات در تخريب غلظت‌هاي بالاي آنتي‌بيوتيک سفترياکسون از پساب‌هاي دارويي
Efficiency of Electro/Persulfate (EPS) Process in Degrading High Concentrations of Ceftriaxone in Pharmaceutical Effluents Abstract Two-valent iron ions can be used to activate persuphate anions. The objective of the p...
ارزيابي تأثير نصب پمپ و مخزن آب بر کيفيت آب مصرفي داخل ساختمان‌هاي مسکوني و مؤسسات، مطالعه موردي: شبکه توزيع آب محدوده سه راه آذري شهر تهران Investigating the Effect of Pump and On-Site Reservoir Inside Buildings and Major Utilities on Water Quality, Case Study: Water Distribution Network in Tehran Azari District
Abstract Requirements of the Issue Sixteen of the Iranian National Building Code demand the protection of the drinking water network inside residential buildings over 4 stories or with more than 10 units. These building...
کاربرد روش بهينه‌سازي نيروي مرکزي در طراحي سامانه‌هاي توزيع آب
Central Force Optimization Method Used to Optimize Water Distribution Networks Water supply networks account for a major portion of the urban infrastructure requiring sizable funds for their construction and operation....
پتانسیل حذف استایرن توسط میکروارگانیسم هوازی رودوکوکوس اریتروپولیس PTCC 1767
Potential Removal of Styrene by the Aerobic Microorganism Rhodococcus erythropolis PTCC 1767 Abstract Biodegradation of styrene by an aerobic microorganism (namely, Rhodococcus erythropolis PTCC 1767) as well as the e...
اصلاح جاذب ميان- حفره سيليکاته MCM-48 وکاربرد آن در حذف يون‌هاي فلزي سرب وکادميم
Modification of MCM-48 Mesoporous Silica for the Removal of Lead and Cadmium Metal Ions from Aqueous Solutions Mesoporous silica adsorbents have been gaining increasing importance in the removal of heavy metal ions from...