Oily Water Treatment

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Wastewater Treatment and Reuse".

Deadline for manuscript submissions: closed (31 March 2017) | Viewed by 17927

Special Issue Editors

School of Engineering and Architecture, University of Enna “Kore”, Cittadella Universitaria, 94100 Enna, Italy
Interests: integrated urban water systems; wastewater treatment plant management and optimization; advanced water treatment; oily and salty water treatment; energy management in integrated water systems
Special Issues, Collections and Topics in MDPI journals
Department of Engineering and Architecture, Università degli Studi di Enna "Kore", 94100 Enna, Italy
Interests: membrane bioreactor; membrane fouling; wastewater treatment; full-scale and lab-scale plant; biological treatment
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The production of oily wastewaters has become a primary issue in many productive sectors, ranging from agricolture and fishery (oil milling, fish cannery, etc.) to heavy chemical industries (above all refination, transport and storage of oil and derivatives). Oily wastewaters are often characterised by high COD with the presence of recalcitrant compouds requiring specific attention in order to reach adequate treatment efficiencity. Such wastewaters have widely variable characteristics requiring a tayloring approach to suite the treatment process to each specific case. Sometimes the definition of the treatment train may become complicated bythe presence of biological inibitors such as high concentration of salt or the presence of toxic chemicals. This Special Issue of Water was designed to collect experiences, both in laboratory and in the field, regarding oily water treatment efficiencies, management and cost issues, methods and technologies for treatment optimisation, control and energy consumption reduction. The Special Issue aims to collect a wide range of paper dealing with oily wastewater characterisation, innovative technologies for treatment, optimisation of biological processes, reuse and disposal of sludges with the final aim to provide a valuable collection of studies for the future development of research and practical applications. Relevant and documented case studies in the field are very welcome as well.

Prof. Dr. Gabriele Freni
Prof. Dr. Gaetano Di Bella
Guest Editors

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Keywords

  • Oily wastewater characterisation
  • advanced biological water treatment processes
  • chemical and physical processes for oily waters treatment
  • energy issues in oily wastewater treatment
  • treatment of industrial wastewaters in marine environments

Published Papers (3 papers)

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Research

2498 KiB  
Article
Characterization and Treatment Proposals of Shipboard Slop Wastewater Contaminated by Hydrocarbons
by Riccardo Campo, Maria Gabriella Giustra, Mauro De Marchis, Gabriele Freni and Gaetano Di Bella
Water 2017, 9(8), 581; https://doi.org/10.3390/w9080581 - 04 Aug 2017
Cited by 15 | Viewed by 4471
Abstract
Shipboard slop wastewaters are produced by the activity of washing of oil tankers with seawater, and are characterized by high salinity and hydrocarbons. In this context, harbor authorities are forced to respect the international regulation IMO-MARPOL 73/78 and they must treat slop wastewater [...] Read more.
Shipboard slop wastewaters are produced by the activity of washing of oil tankers with seawater, and are characterized by high salinity and hydrocarbons. In this context, harbor authorities are forced to respect the international regulation IMO-MARPOL 73/78 and they must treat slop wastewater before discharging to the sea. This study compared data from three stand-alone treatments working with the same real slop wastewater: (1) a chemical treatment of coagulation-flocculation with aluminum sulphate as coagulant and an anionic flocculant (A57), (2) a physical treatment of adsorption on granular activated carbon (GAC), (3) two biological treatments represented by a membrane bioreactor (MBR) and a moving bed biofilm reactor (MB-MBR). GAC treatment registered the highest removal efficiency of total petroleum hydrocarbons (ηTPH) next to 85%, since the activated carbon had excellent adsorption properties towards organic substances. The coagulation-flocculation treatment reported the lowest ηTPH ≈ 57% due to the presence of emulsified hydrocarbons that were not affected by the coagulant and flocculant action, so remaining in liquid phase. ηTPH ≈ 70% obtained with MB-MBR fed with 100% volume of slop, suggested biomass acclimation to salinity and hydrocarbons. Based on the results of each process, three main treatment chains are proposed depending on the hydrocarbons load of the real slop wastewater. Full article
(This article belongs to the Special Issue Oily Water Treatment)
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1783 KiB  
Article
Treatment of Oily Wastewater with Membrane Bioreactor Systems
by Marco Capodici, Alida Cosenza, Daniele Di Trapani, Giorgio Mannina, Michele Torregrossa and Gaspare Viviani
Water 2017, 9(6), 412; https://doi.org/10.3390/w9060412 - 09 Jun 2017
Cited by 40 | Viewed by 6692
Abstract
The aim of the present work was to investigate the behavior of a membrane bioreactor (MBR) system for the treatment of oily wastewater. A bench scale MBR was fed with synthetic wastewater containing diesel fuel. Organic carbon, hydrocarbon and ammonium removal, kinetic constants, [...] Read more.
The aim of the present work was to investigate the behavior of a membrane bioreactor (MBR) system for the treatment of oily wastewater. A bench scale MBR was fed with synthetic wastewater containing diesel fuel. Organic carbon, hydrocarbon and ammonium removal, kinetic constants, extracellular polymeric substances production, and membrane fouling rates were monitored. The MBR plant was operated for more than 200 days, and the results highlighted good carbon removal and nitrification, suggesting a sort of biomass adaptation to hydrocarbons. Membrane fouling analysis showed an increase in total resistance, likely due to hydrocarbons, which caused an irreversible fouling (pore blocking) mainly due to oil deposition. Full article
(This article belongs to the Special Issue Oily Water Treatment)
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1315 KiB  
Article
Performance and Yeast Tracking in A Full-Scale Oil-Containing Paromomycin Production Wastewater Treatment System Using Yeast
by Chunyan Wang, Ran Ding, Yingxin Gao, Min Yang and Yu Zhang
Water 2017, 9(4), 295; https://doi.org/10.3390/w9040295 - 22 Apr 2017
Cited by 3 | Viewed by 5705
Abstract
High residual oil content in antibiotic production waste mother liquor makes solid–liquid separation of fermentation residue and wastewater difficult. A yeast-based pretreatment process was established for the removal of oil and promotion of solid–liquid separation in antibiotic production wastewater treatment systems. Six yeast [...] Read more.
High residual oil content in antibiotic production waste mother liquor makes solid–liquid separation of fermentation residue and wastewater difficult. A yeast-based pretreatment process was established for the removal of oil and promotion of solid–liquid separation in antibiotic production wastewater treatment systems. Six yeast strains acquired from different sources were inoculated into sequencing batch reactors (SBR) in pilot and full-scale wastewater treatment plants. Oil removal rates were 85.0%–92.0% and 61.4%–74.2%, and sludge settling velocities (SV) were 16.6%–21.3% and 22.6%–32.0% for the pilot and full-scale operations, respectively. 18S rRNA gene clone libraries were established to track the fates of the inoculated yeasts, which showed that Candida tropicalis was dominant in the full-scale plant. The fungi and bacteria gene copy ratio determined by quantitative polymerase chain reaction was 14.87 during stable field operation, indicating that yeast successfully colonized. Both the pilot and full-scale studies proved that yeast can be used to promote solid–liquid separation, and yeast systems are a stable and effective method for oil-containing fermentation antibiotic production wastewater pretreatment. Full article
(This article belongs to the Special Issue Oily Water Treatment)
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