Remediation of City River Water by Combining Submerged Macrophyte and Bioenergizer

Abstract:

The eutrophication of water in an urban river was treated by combining two submerged aquatic plants Elodea nuttallii and Potamogeton crispus with a biological growth-promoting agent Bio-energizer (BE) on a pilot scale. The results showed that the two submerged plants could remove CODCr effectively and steadily, with a removal rate of 58% and 52.3% respectively. All experimental treatments were effective at removing TN, TP, NH₄⁺-N, NO₃⁺-N, but the treatment in which BE was added at the lower concentration (from 1 to 3 ml/m³) was better than that at the higher concentration (from 5 to 10 ml/m³). Elodea nuttallii produced the best treatment efficiency when 1 ml/m³ BE was added to the experimental water. The rate of removal of TP and TN was 71.0%, and 72.4% within one week while that in the control group was 50% and 51% respectively. The number of bacteria changed during the different stages of the experiment.

• Periodical: Advanced Materials Research (Volume 322)
• Pages: 189-194
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.322.189
• Online since: August 2011
• Authors: Li Min Ma, Hou Ran Song, De Lei Meng, Ben Tao Gong
• Keywords: Bioenergizer, Eutrophic Water, Remediation, Submerged Macrophyte Treatment, Water Treatment

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