Next Article in Journal
The Fracturing Behavior of Tight Glutenites Subjected to Hydraulic Pressure
Next Article in Special Issue
Flotation in Water and Wastewater Treatment
Previous Article in Journal
Nonlinear Flow Characteristics of a System of Two Intersecting Fractures with Different Apertures
Previous Article in Special Issue
Synthesis and Characterization of Ampholytic Flocculant CPCTS-g-P (CTA-DMDAAC) and Its Flocculation Properties for Microcystis Aeruginosa Removal
Article Menu
Issue 7 (July) cover image

Export Article

Open AccessArticle
Processes 2018, 6(7), 95; https://doi.org/10.3390/pr6070095

Treatment of Oil-Contaminated Water by Modified Polysilicate Aluminum Ferric Sulfate

1
College of Urban Construction, Nanjing Tech University, Nanjing 211800, China
2
Graduate Institute of Environmental Engineering, National Taiwan University, 71 Chou-Shan Road, Taipei City 10673, Taiwan
*
Author to whom correspondence should be addressed.
Received: 23 June 2018 / Revised: 16 July 2018 / Accepted: 18 July 2018 / Published: 20 July 2018
(This article belongs to the Special Issue Wastewater Treatment Processes)
Full-Text   |   PDF [3613 KB, uploaded 20 July 2018]   |  

Abstract

In this experiment, a variety of inorganic materials were simply compounded with Polysilicate Aluminum Ferric Sulfate (PSAFS) to treat emulsified oil-contaminated water. Manganese sulfate (MnSO4), magnesium sulfate (MgSO4), and zinc sulfate (ZnSO4) were selected as the materials to modify PSAFS in order to obtain a coagulant with good flocculation performance. During the preparation of modified PSAFS, metal manganese, magnesium, and zinc were introduced for modification, and four factors were used to optimize the best proportion of modifiers and PSAFS. The results showed that the order of demulsification and oil-removal ability is as follows: Mn-PSAFS (Mn-modified PSAFS) > Zn-PSAFS (Zn-modified PSAFS) > Mg-PSAFS (Mg-modified PSAFS) > PSAFS. Modified PSAFS was characterized by infrared spectroscopy (IR) and a Scanning Electron Microscope (SEM). In the range of 604 cm−1 to 1200 cm−1, due to the complexation reaction between metal ions and polysilicic acid, the absorption peaks of the modified PSAFS and PSAFS were significantly different. SEM results revealed that the particles of the spatial network structure were fibrous and arranged more closely (0.5 mm × 50.0 mm) than others. This study provided that the modified PSAFS had good potential application in treating emulsified oily wastewater in the future. View Full-Text
Keywords: oily wastewater; modified PSAFS; coagulant; coagulation; characterization oily wastewater; modified PSAFS; coagulant; coagulation; characterization
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

You, Z.; Zhang, L.; Zhang, S.; Sun, Y.; Shah, K.J. Treatment of Oil-Contaminated Water by Modified Polysilicate Aluminum Ferric Sulfate. Processes 2018, 6, 95.

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.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Processes EISSN 2227-9717 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top