Copper/activated carbon as catalyst for organic wastewater treatment

Carbon materials and catalytic wet air oxidation of organic pollutants in wastewater

“…Yue et al [144][145][146] studied various metal oxides and metal oxide supported catalysts for the treatment of dyeing process water from the textile industry at 200°C and 2.6 MPa. Among these metal oxides, activated carbon coated with CuO performed a superior 72% COD conversion.…”

“…The lack of stable catalysts has prevented CWAO from being widely employed as industrial wastewater treatment. The most prominent supported catalysts prone to metal leaching in the hot acidic reaction environment are Cu based metal oxides [52][53][54][55][56] and mixed metal oxides (CuO, ZnO, CoO) [57,58]. Expensive supported noble metal catalysts (Pt, Pd, Ru, Rh, Ir, Ag) appear much more stable, although leaching was occasionally observed, e.g.…”

Reduction Behaviors of Nitric Oxides on Copper-decorated Mesoporous Molecular Sieves

“…A major peak at 2θ = 2 o (100) along with three small peaks was observed due to the (110), (200), and (210) plane reflection lines. 6,7 These three reflection lines are generally indexed for the hexagonal unit cell as seen in the TEM image. In case of the Cu/MCM-41 sample, three small peaks mentioned above were not clearly observed.…”

“…[6][7][8][9] This means that proper MCM-41 samples can be designed for a specified toxic gas by changing pore diameters. Through the control of preparation conditions, such as a template, a reaction temperature, time, 10 and pH value, 11 high quality MCM-41 materials can be obtained with the properties such as high specific surface area, large pore volume, and ordered pore size.…”

Estudo Dos Parâmetros Físico-Químicos Em Filtros De Carvão Ativado Granular Modificados Com Nanopartículas De Prata E Cobre Para Aplicação No Tratamento De Água

“…O país não está livre de problemas de escassez de água, fato atribuído à degradação ambiental, ao crescimento elevado das demandas que incluem intensificação do consumo nas indústrias, à agricultura e à urbanização desordenadas, que concorrem com os usos básicos: higiene, preparo de alimentos e dessedentação (REBOUÇAS, 1999;CARMO, 2002;VASCONCELOS, 2002) (KAGEYAMA et al, 2003;SILVA et al, 2007;HARAMOTO et al, 2007;KITAJIMA et al, 2009;KUO et al, 2010;. Os processos de tratamento disponíveis são muitas vezes insuficientes para a remoção desses patógenos (MELNICK;GERBA;BERG, 1980;GOYAL et al, 1984;FONG;LIPP, 2005;RAJTAR et al, 2008; et al (2000), Hu et al (1999), Shimabuku et al (2013) e Arakawa et al (2013).…”