Next Article in Journal
French Reed Bed as a Solution to Minimize the Operational and Maintenance Costs of Wastewater Treatment from a Small Settlement: An Italian Example
Next Article in Special Issue
Effective Removal of Lead Ions from Aqueous Solution Using Nano Illite/Smectite Clay: Isotherm, Kinetic, and Thermodynamic Modeling of Adsorption
Previous Article in Journal
The Effects of Antibiotics on Microbial Community Composition in an Estuary Reservoir during Spring and Summer Seasons
Previous Article in Special Issue
Carbamazepine as a Possible Anthropogenic Marker in Water: Occurrences, Toxicological Effects, Regulations and Removal by Wastewater Treatment Technologies
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Water 2018, 10(2), 155;

Treatment of Dairy Wastewater by Oxygen Injection: Occurrence and Removal Efficiency of a Benzotriazole Based Anticorrosive

Department of Applied Chemistry and Physics and IMARENABIO (Institute of Environment, Natural Resources and Biodiversity), Universidad de León, Campus de Vegazana, 24071 León, Spain
Department of Environment and Planning and CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
Author to whom correspondence should be addressed.
Received: 12 December 2017 / Revised: 23 January 2018 / Accepted: 30 January 2018 / Published: 6 February 2018
(This article belongs to the Special Issue Recent Advances in Water Management: Saving, Treatment and Reuse)
Full-Text   |   PDF [1134 KB, uploaded 6 February 2018]   |  


Benzotriazole is used as corrosion inhibitor in many industrial sectors, such as the dairy industry. Due to its widespread use in various applications and everyday consumer products, this chemical easily reaches the aquatic environment, where it may have deleterious effects. In fact, benzotriazole has been included among the so-called emerging contaminants. In this work, the occurrence and fate of a benzotriazole based anticorrosive (BTA-A) during wastewater treatment in a dairy industry has been assessed. At this dairy, a new system for wastewater treatment based on the injection of pure oxygen was recently started. This system has been proved to be efficient, economic and able to stably operate under a wide range of chemical oxygen demand and total suspended solids inputs. Then, after detecting the presence of BTA-A in the effluent of the wastewater treatment plant, it was aimed to optimize oxygen injection for the removal of this anticorrosive together with the regulated parameters. The performance of the system was evaluated at a real scale during a month period, during which the mean removal performance of the oxygen injection based treatment was 91%, 90% and 99% for chemical oxygen demand, total suspended solids and BTA-A, respectively. View Full-Text
Keywords: food industry; anticorrosive agent; benzotriazole; emerging contaminant; oxygen injection food industry; anticorrosive agent; benzotriazole; emerging contaminant; oxygen injection

Figure 1

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).
Printed Edition Available!
A printed edition of this Special Issue is available here.

Share & Cite This Article

MDPI and ACS Style

Martín-Rilo, S.; Coimbra, R.N.; Escapa, C.; Otero, M. Treatment of Dairy Wastewater by Oxygen Injection: Occurrence and Removal Efficiency of a Benzotriazole Based Anticorrosive. Water 2018, 10, 155.

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



[Return to top]
Water EISSN 2073-4441 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top