Next Article in Journal
Effects of Commonly Occurring Metal Ions on Hydroxyapatite Crystallization for Phosphorus Recovery from Wastewater
Previous Article in Journal
Estimating Hydraulic Conductivity Fields in Composite Fan Delta Using Vertical Electrical Sounding
Article Menu

Export Article

Open AccessArticle
Water 2018, 10(11), 1621; https://doi.org/10.3390/w10111621

Characterizing Water Pollution Potential in Life Cycle Impact Assessment Based on Bacterial Growth and Water Quality Models

1
State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
2
College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
*
Authors to whom correspondence should be addressed.
Received: 6 October 2018 / Revised: 31 October 2018 / Accepted: 4 November 2018 / Published: 9 November 2018
(This article belongs to the Section Water and Wastewater Treatment)
Full-Text   |   PDF [2377 KB, uploaded 9 November 2018]   |  

Abstract

For the life cycle assessment (LCA) of wastewater management, eutrophication is considered the most relevant factor. However, eutrophication is not the only pathway through which wastewater influences the environment, and merely characterizing eutrophication potential is not sufficient for the LCA framework to reflect the influence of wastewater. This study defines the Bacterial Depletion of Oxygen (BDO)—a new impact category that represents the oxygen depleting potential caused by the growth of microorganisms—and characterization models and characterization factors are developed for the application of BDO. Water quality models (both one- and two-dimensional) are incorporated into the BDO characterization models so that the LCA framework includes some spatially differentiated factors, and can be used to estimate the direct impact of wastewater on receiving environment (IBDO value). Based on three case studies, this study demonstrates how the BDO category can be applied for the evaluation of wastewater management. Results show that increases in the downstream distance and self-purification coefficients reduce the IBDO value, whereas the increase in water velocity raises the IBDO value. Future integration of the BDO category with water quality models must link the dilution effect of water bodies, the environmental carrying capacity of receiving water, and the distribution of water pollutants in eutrophication and bacterial oxygen depletion. View Full-Text
Keywords: life cycle assessment; methodology; oxygen-depleting potential; wastewater treatment life cycle assessment; methodology; oxygen-depleting potential; wastewater treatment
Figures

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).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Bai, S.; Wang, X.; Zhao, X.; Ren, N. Characterizing Water Pollution Potential in Life Cycle Impact Assessment Based on Bacterial Growth and Water Quality Models. Water 2018, 10, 1621.

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