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
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)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.