Next Article in Journal
An Optimization Method for an Integrated Energy System Scheduling Process Based on NSGA-II Improved by Tent Mapping Chaotic Algorithms
Next Article in Special Issue
Mesoporous Mn-Doped Fe Nanoparticle-Modified Reduced Graphene Oxide for Ethyl Violet Elimination: Modeling and Optimization Using Artificial Intelligence
Previous Article in Journal
Enhanced Anaerobic Digestion by Stimulating DIET Reaction
Previous Article in Special Issue
Effect of Initial Salt Composition on Physicochemical and Structural Characteristics of Zero-Valent Iron Nanopowders Obtained by Borohydride Reduction
Open AccessReview

Characteristics and Treatment of Wastewater from the Mercaptan Oxidation Process: A Comprehensive Review

1
Escuela de Ingeniería Química, Pontificia Universidad Católica de Valparaíso, Av. Brasil 2162, Valparaíso 2362854, Chile
2
Departamento de Ingeniería Química, Universidad de Santiago de Chile, Av. Libertador Bernardo O’Higgins 3363, Estación Central 9170022, Chile
*
Author to whom correspondence should be addressed.
Processes 2020, 8(4), 425; https://doi.org/10.3390/pr8040425
Received: 12 March 2020 / Revised: 27 March 2020 / Accepted: 31 March 2020 / Published: 3 April 2020
(This article belongs to the Special Issue Application of Advanced Oxidation Processes)
Sulfur compounds are removed from petroleum by the addition of sodium hydroxide at a very high concentration. As a result, a residue called spent soda or spent caustic is generated, being extremely aggressive to the environment. In this work, the chemical properties of this residue are described in detail. The sodium hydroxide remains that have not reacted, sulfur compounds, and organic matter are the primary pollutants reported. Additionally, the main characteristics of the methods of treatment used to reduce them are described. This review comes from comprehensive and updated research and bibliographic analysis about the investigation on the topic. The advantages and disadvantages of the different treatment methods are highlighted. We established some criteria to set out when assessing the application of each one of these treatments is considered. View Full-Text
Keywords: biological processes; electrochemical processes; oxidation processes; petroleum; phenols; sulfides biological processes; electrochemical processes; oxidation processes; petroleum; phenols; sulfides
Show Figures

Graphical abstract

MDPI and ACS Style

Pino-Cortés, E.; Montalvo, S.; Huiliñir, C.; Cubillos, F.; Gacitúa, J. Characteristics and Treatment of Wastewater from the Mercaptan Oxidation Process: A Comprehensive Review. Processes 2020, 8, 425.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop