Analysis of Cyperus alternifolius foam floating islands on nitrogen removal in polluted rivers
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Abstract:
We conducted a nitrogen removal test using floating islands in polluted rivers. The results show the nitrogen removal efficiency of Cyperus alternifolius exceeds that of Vetiveria zizanioides which in turn is greater than flagleaf. The relationship among removal loading, coverage rate and inflow loading was studied. The boundary of coverage rate was 30%. There was a significant change in the relationship between removal loading and coverage rate. The relationship between removal loading and inflow loading follows a quadratic function. The appropriate coverage rate and inflow loading were found based on this test.
