Loughborough University
Browse
YJEMA_115867_session_report (1)_Redacted.pdf (3.36 MB)

Effect of aeration on water quality and sediment humus in rural black-odorous water

Download (3.36 MB)
journal contribution
posted on 2022-08-25, 14:15 authored by Mengshuo Liu, Tingting Li, Zhongchen Wang, Tanja RaduTanja Radu, Huiyuan Jiang, Li Wang

Black-odorous water, which exists widely in rural areas of China, affects the living environments of residents and causes a loss of ecosystem functions, and improper treatment may even cause secondary pollution. Moreover, the transformation relationships among the components of humus in the sediments of black-odorous water are largely unknown. Therefore, it is necessary to select appropriate methods for treating black-odorous water in rural areas and to understand the characteristics of humus in sediment during the treatment process. In this study, the use of aeration in treating black-odorous water and interstitial water in rural areas was studied and the effects of different treatment methods on the contents and spectral characteristics of humus components in sediments were explored. It was found that the quality of the treated water improved from severe black-odorous to nonblack-odorous, the colour of the sediment changed from black to greyish-brown to turquoise, and the odour changed from strong to weak. The removal rates of ammonia nitrogen, total nitrogen, total phosphorus, and chemical oxygen demand in the sediment aeration group reached more than 50% in the upper water, and more than 70% in the interstitial water. After treatment, the content of fulvic acid, the main black substance in sediment, decreased by 0.36–1.58 g/kg, and the molecular structure of the humus was simplified.

Funding

Major Science and Technology Program for Water Pollution Control and Treatment, China (2015ZX07204-002-05)

History

School

  • Architecture, Building and Civil Engineering

Published in

Journal of Environmental Management

Volume

320

Issue

2022

Publisher

Elsevier

Version

  • AM (Accepted Manuscript)

Rights holder

© Elsevier

Publisher statement

This paper was accepted for publication in the Journal of Environmental Management and the definitive published version is available at https://doi.org/10.1016/j.jenvman.2022.115867

Acceptance date

2022-07-29

Publication date

2022-08-11

Copyright date

2022

ISSN

0301-4797

Language

  • en

Depositor

Dr Tanja Radu. Deposit date: 10 August 2022

Article number

115867

Usage metrics

    Loughborough Publications

    Categories

    No categories selected

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC