WANGGuan-ping,SUNQi,SHIWei,et al.Preparation of a Cost?effective Ferric?based Aluminum Ash Catalyst and Its Catalytic Ozonation Performance[J].China Water & Wastewater,2024,40(11):81-88.
Preparation of a Cost?effective Ferric?based Aluminum Ash Catalyst and Its Catalytic Ozonation Performance
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第11期
Page:
81-88
Column:
Date of publication:
2024-06-01
- Abstract:
- Using aluminum ash, activated alumina, and coal power as composite carriers, a low-cost ferric based aluminum ash catalyst was prepared after these industrial wastes were pretreated and loaded with iron oxide (active component) using the impregnation method. The catalyst was characterized using particle strength tester, scanning electron microscope (SEM), X-ray diffractometer (XRD), and brunauer-emmett-teller (BET), and the catalytic ozonation performance for removing COD from aniline and phenol wastewater was investigated. The optimal mass ratio of aluminum ash to activated alumina to coal powder was 48.5∶48.5∶3, with an iron oxide content of 6%. The resulting strength of the catalyst reached 115 N, while the specific surface area and pore capacity were 172.5 m2/g and 0.34 cm3/g, respectively. Under the initial conditions of pH 8, ozone gas flow of 0.4 L/min, ozone dosage of 40 mg/L, volume of aniline or phenol wastewater of 5 L, and catalyst filling rate of 30%, the maximum COD removal rates for aniline wastewater and phenol wastewater reached 81.3% and 71.9%, respectively. The catalyst had low preparation costs, stable catalytic performance, and effectively utilized waste resources for waste treatment, demonstrating significant application value.
Last Update:
2024-06-01