Study of Mandacaru (Cereus jamacaru DC), in natura and modified by microemulsion, as a biosorbent for diesel oil

Raoni Batista Dos Anjos,Aécia Seleide Dantas Dos Anjos,Djalma Ribeiro Da Silva,Henrique Borges De Morais Juviniano,Tereza Neuma Castro Dantas

doi:10.4025/actascitechnol.v43i1.49874

Raoni Batista Dos Anjos, Aécia Seleide Dantas Dos Anjos + Show 3 more

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https://doi.org/10.4025/actascitechnol.v43i1.49874

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Abstract

Biosorbents have emerged as an alternative to remove organic contaminants because they are natural products with a high availability, low cost, biodegradability, and good sorption capacity. The Mandacaru (Cereus jamacaru DC) was investigated as sorbent of diesel, and compared with the Mandacaru modified with microemulsions. The sorbents were also submitted to a physycal-chemical characterization for FT-IR, TG/DTG, MEV and CHN-O. The granulometry range 500-150 µm of the Mandacaru particulate, this was the granulometry range chosen as the standard one, being used in the modification and sorption tests. The unclassified Mandacaru presented a medium sorption capacity of the diesel oil of 1.61 g g-1. Whereas the Mandacaru modified with a microemulsion comprised of direct micelles (oil/water) showed a remarkable increase in the sorption capacity of 80-111% (3,08 to 3,54 g g-1).

Highlights

IntroductionThe remediation of spills and leaks of oil and its derivatives from water and soil, as well as relieving their environmental impacts, has been a constant concern for environmental organizations in Brazil and globally because of the high mobility and toxicity of hydrocarbons
The granulometry range 500-150 μm obtained the largest percentage of the Mandacaru particulate
This was the granulometry range chosen as the standard one, being used in the sorption tests

Summary

Introduction

The remediation of spills and leaks of oil and its derivatives from water and soil, as well as relieving their environmental impacts, has been a constant concern for environmental organizations in Brazil and globally because of the high mobility and toxicity of hydrocarbons The persistence of these pollutants in the environment causes continuous contamination by monoaromatic hydrocarbons, polycyclic aromatic hydrocarbons, and total petroleum hydrocarbons. Benzene and benzo(a)pyrene are a major environmental concern because they can be injurious to public health, especially when supply sources are affected (Ramalho, Aquino Sobrinho, Anjos, Dantas, & Silva, 2014; Rengarajan et al, 2015; Alegbeleye et al, 2017) In this context, several techniques have been proposed and used for cleaning and recovery of areas contaminated by oil spills, such as physical methods (Crick, Bhachu, & Parkin, 2014), chemical methods like in situ burning and solidifiers (Mullin & Champ, 2003; Rosales, Suidan, & Venosa, 2010; Sundaravadivelu, Suidan, Venosa, & Rosales, 2016), and bioremediation (Bamforth & Singleton, 2005; Crisafi et al, 2016). Sorption has been widely used in oil leakage because it is simple and efficient (Wahi, Chuah, Choong, Ngaini, & Nourouzi, 2013; Boni, Oliveira, Souza, & Souza, 2016; Patowary, Pathak, & Ananthakrishnan, 2016; Yin, Zhang, Liu, Li, & Wang, 2016)

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