Influence of the methodology on the formation of zeolite membranes MCM-22 for the oil/water emulsion separation

Abstract

This work aimed to produce zeolite membranes MCM-22 using two methods of synthesis, dip coating (DC) and vapor phase transport (VPT), to be evaluated in the oil/water emulsion separation process. The membranes were prepared at 150 °C for 10 days and characterized by X-ray diffraction and scanning electron microscopy. They were evaluated in tests of pure water permeation and oil/water emulsion separation system of a synthetic effluent, using a stainless-steel module under the conditions of the initial concentration of the emulsion of 100 mg/L, temperature of 25 °C and pressure of 2.0 bar. The results showed that the MCM-22 zeolite membrane by DC had the final value of the permeate concentration of 3.2 mg/L and the membrane prepared by VPT presented a final value of 3.9 mg/L which were within the standards required by Resolution No. 392 of CONAMA which is up to 20 mg/L of mineral oils.

Study of the influence of the aluminum source (acetate or sulfate) on the synthesis of the ceramic membrane and applications of emulsion oil water: use and reuse

“…Membranes were used for the treatment of oil/water emulsions because of their antifouling properties and excellent chemical stability (Barbosa et al, 2019;Barbosa et al, 2020;Gallucci et al, 2011;Barbosa et al, 2018;Bayat et al, 2016;Suresh et al, 2016;Zhong et al, 2013). From the results presented in Figure 8 (a), it can be seen that the membranes were efficient in the water-oil emulsion removal process.…”

“…Membrane separation processes are alternative methods for the oil-water separation (Padaki et al, 2015;Madaeni et al, 2012;Barbosa et al, 2019;Barbosa et al, 2020). The present study is part of this line of research and represents another contribution to the field, presenting the preparation of the ceramic membrane (γ-alumina) from the decomposition of aluminum sulphate and aluminum acetate, which were used as an alternative source of matter for the production of alumina.…”

Synthesis of SAPO-34 Zeolite Membrane: Influence of Sources of Silica

“…Our research group has published a series of studies on the preparation of membranes to treat various effluents [19][20][21][22][23][24][25][26][27]. This study is an integral part of this line of search.…”

Influência da presença de compostos fenólicos em hidrolisados de sabugo de milho na produção de etanol de segunda geração

“…Em estações de tratamento de águas residuais, muitas técnicas tradicionais são utilizadas para a separação de efluentes oleosos. A separação por membrana, desenvolvida nos últimos 50 anos, é uma das técnicas de separação de emulsões que contêm gotículas de óleo com um diâmetro inferior a 20 μm (ABBASI et al, 2010; Barbosa et al, 2019).…”