Research Article
Microwave-Induced Catalytic Oxidation of High-Concentration Dye Effluent Using CuFe2O4/ACF Combined with O3
Issue:
Volume 13, Issue 3, June 2024
Pages:
42-48
Received:
15 August 2024
Accepted:
9 September 2024
Published:
23 September 2024
Abstract: Ozone-microwave catalytic oxidation system (O3/MIOP) is a new deep composite oxidation technology based on ozone and microwave-induced catalysis. In this paper, CuFe2O4 loaded on activated carbon fiber (CuFe2O4/ACF) was prepared by sol-gel method as microwave catalyst to degrade 6 L Basic Brown (500 mg/L) and actual wastewater with O3/MIOP technique. After the wastewater is subjected to ozone treatment for a period of time, it flows into the reactor from the water inlet through a peristaltic pump, and at the same time, a certain amount of CuFe2O4/ACF catalyst and H2O2 are added to the reactor. The results show that under the co-treatment of 60 min O3 and 5 min MIOP, the decolorization rate of basic brown at 500 mg/L reached 60%, and the B/C value increased from the initial 0.18 to 0.32.As to the actual wastewater, the B/C value after degradation tends to 0.3, which is easy to the next biochemical treatment. Furthermore, •OH and O2•- are measured to be the main active group in the process of degradation of Basic Brown under O3/MIOP treatment. These two reactive species accelerate the degradation of the dye during the reaction, thus increasing the reaction rate. This composited oxidation technology system was proven to be suitable and of practical value in high-concentration dye effluent treatment.
Abstract: Ozone-microwave catalytic oxidation system (O3/MIOP) is a new deep composite oxidation technology based on ozone and microwave-induced catalysis. In this paper, CuFe2O4 loaded on activated carbon fiber (CuFe2O4/ACF) was prepared by sol-gel method as microwave catalyst to degrade 6 L Basic Brown (500 mg/L) and actual wastewater with O3/MIOP techniqu...
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Research Article
Design of Local Micro-Grids to Solve the Electricity Shortage in Iraq Cities
Issue:
Volume 13, Issue 3, June 2024
Pages:
49-58
Received:
31 July 2024
Accepted:
27 August 2024
Published:
28 November 2024
Abstract: Iraqi cities suffer from a shortage of electric power due to poor production and deterioration of transmission and distribution lines. There is no prospect currently for improving the grid, despite the government's promises. So it has become necessary to find alternatives, at least at the local level. This research, presented a successful alternative, which applied all over the world, which is the local microgrid. Also, it’s developed a design for this microgrid that suits the conditions of Iraq and supports the integration of clean energy produced by the consumer. The results indicate the success of investing in this microgrid by small investors, foreign companies or local administrations of the cities that want to develop their cities in isolation from the problems of the country's national electrical grid. This solution reduce the pressure on the national grid on one hand and improve the electricity service for the consumer on the other hand, by providing the pivotal key to the solution, which is replacing the blind system of paying wages (for electricity service) currently followed in Iraq with the billing system followed in all developed countries of the world. This solution provides the possibility of deploying the economic solar PV system (without batteries) in Iraqi houses to reduce the bills and also allows personal monitoring of electricity consumption so that the consumer can reduce loads during peak times to reduce bills as well.
Abstract: Iraqi cities suffer from a shortage of electric power due to poor production and deterioration of transmission and distribution lines. There is no prospect currently for improving the grid, despite the government's promises. So it has become necessary to find alternatives, at least at the local level. This research, presented a successful alternati...
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,
Qais Khalil Shaker
