McMahon, Glenda Chatterton, Ken The dissolved oxygen sag curve <p>The dissolved oxygen sag curve </p> WEDC;Wastewater treatment;Technical;Diagram;International and Development Communication 2019-02-20
    https://repository.lboro.ac.uk/articles/figure/The_dissolved_oxygen_sag_curve/7719053
10.17028/rd.lboro.7719053.v1