research centers


Search results: Found 2

Listing 1 - 2 of 2
Sort by

Article
Furfural Degradation in Waste Water by Advanced Oxidation Process Using UV/H2O2

Authors: Awatif S. Alsaqqar --- Mohammed Sadeq Salman --- Waleed. M. Abood --- Dhafer F. Ali
Journal: Iraqi Journal of Chemical and Petroleum Engineering المجلة العراقية للهندسة الكيمياوية وهندسة النفط ISSN: 19974884/E26180707 Year: 2015 Volume: 16 Issue: 2 Pages: 9-17
Publisher: Baghdad University جامعة بغداد

Loading...
Loading...
Abstract

Furfural is one of the one of pollutants in refinery industrial wastewaters. In this study advanced oxidation process using UV/H2O2 was investigated for furfural degradation in synthetic wastewater. The results from the experimental work showed that the degradation of furfural decreases as its concentration increases, reaching 100% at 50mg/l furfural concentration and increasing the concentration of H2O2 from 250 to 500 mg/l increased furfural removal from 40 to 60%.The degradation of furfural reached 100% after 90 min exposure time using two UV lamps, where it reached 60% using one lamp after 240 min exposure time. The rate of furfural degradation k increased at the pH and initial concentration of furfural decreased, but different H2O2concentrations indicated no significant effects on the reaction rate. UV/H2O2 process is effective for furfural degradation in wastewater at neutral pH where the disposal of such effluents will be within the environmental limitations.

Keywords

Furfural --- UV/H2O2 --- Degradation --- AOP.


Article
Study on Kinetic and Optimization of Continuous Advanced Oxidative Decolorization of Brilliant Reactive Red Dye
دراسة افضل ظروف باستخدام مفاعل مستمر لعملية الاكسدة المتقدمة لإزالة الصبغة الحمراء التفاعلية

Authors: Forqan M. Hameed --- Khalid M. Mousa
Journal: Iraqi Journal of Chemical and Petroleum Engineering المجلة العراقية للهندسة الكيمياوية وهندسة النفط ISSN: 19974884/E26180707 Year: 2019 Volume: 20 Issue: 1 Pages: 9-14
Publisher: Baghdad University جامعة بغداد

Loading...
Loading...
Abstract

The azo dye brilliant reactive red K-2BP (λmax = 534 nm) is widely used for coloring textiles because of its low-cost and tolerance fastness properties. Wastewaters treatment that contains the dye by conventional ways is usually inadequate due to its resistance to biological and chemical degradation. During this study, the continuous reactor of an advanced oxidation method supported the use of H2O2/sunlight, H2O2/UV, H2O2/TiO2/sunlight, and H2O2/TiO2/UV for decolorization of brilliant reactive red dye from the effluent. The existence of an optimum pH, H2O2 concentration, TiO2 concentration, and dye concentration was taken from the batch reactor experiments. The best conditions were pH=3, H2O2 dosage = 500 ppm, TiO2=100ppm and dye concentration=15 ppm .Under the most effective conditions, complete removal of the dye solution was achieved with different flow rates (10, 30, 60) ml/min. At flow rate of 10 ml/min, the percentage of decolorization were (80.47%, 84.65%, 89.42%, 77.5%) and at 60 mL/min (65.19%, 68.26%, 70.01%, 56.8%) for H2O2/sunlight, H2O2/UV, H2O2/TiO2/sunlight and H2O2/TiO2/UV respectively. Results of degradation information showed that the decolorization method was pseudo-first-order kinetics.

تستخدم azo صبغة تفاعلية ذات اللون الاحمر والطول الموجي 534 نانومتر على نطاق واسع لصباغة المنسوجات بسبب فعاليتها من حيث التكلفة وخصائص ثبات ممتازة. وكثيراً ما تكون معالجة مياه الصرف الصحي المحتوية على هذه الصبغة بالطرق التقليدية غير كافية بسبب مقاومتها للتدهور البيولوجي والكيميائي. في هذه الدراسة يتم استخدام مفاعل مستمر للعملية أكسدة متقدمة تقوم على استخدام ( (H2O2/sunlight, H2O2/UV, H2O2/TiO2/sunlight, H2O2/TiO2/UVلازالة الصبغة الحمراء.وتم أخذ افضل الظروف من حيث الاس للهيدروجيني ، تركيز بيروكسيد الهيدروجين، تركيز ثنائي اوكسيد التيتانيوم وتركيز الصبغة من تجارب المفاعلات الدفعة ((Batch reactor. وكانت أفضل ظروف الأس الهيدروجيني = 3، H2O2= 500 ملغمل, 100 = TiO2 ملغمل و تركيز الصبغ = 15ملغمل . تحت أفضل الظروف تمت إزالة اللون للمحلول الحاوي على الصبغة مع معدل تدفق مختلف (10، 30، 60) مل / دقيقة. في معدل تدفق 10 مل / دقيقة، وبلغت نسبة إزالة اللون (80.47٪، 84.65٪، 89.42٪، 77.5٪) وبمعدل 60 مل / دقيقة (65.19٪، 68.26٪، 70.01٪، 56.8٪) للعمليات الاتية وعلى التوالي H2O2/sunlight, H2O2/UV) .(H2O2/TiO2/sunlight,H2O2/TiO2/UV

Listing 1 - 2 of 2
Sort by
Narrow your search

Resource type

article (2)


Language

English (2)


Year
From To Submit

2019 (1)

2015 (1)