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In this paper, nine rings matrix Swan Lake water ecosystem restoration effectiveness conducted a series of studies to explore the nine ring matrix Swan Lake ecosystem on water quality and water quality in different areas of the restoration campaign, and the nine rings matrix core equipment for the ecosystem water quality and try to build nine rings matrix ecosystem model for water purification performance. Main conclusions are as follows: 1. Nonacyclo matrix integrated ecosystem making waves aerobics, cycling oxygen, plants floating bed, and fluorescence induced regulation of fish and many other measures to make the lake water quality improvement. From a practical point of view, nine rings matrix ecosystem run over three months later, COD, TN, NH3-N, TP decline significantly, the removal rate were 42.8%, 31.9%, 33.5% and 30.4%. In addition, nine ring matrix in the process of ecosystem restoration planting plants grow well and individual fish grow rapidly, while water restoration achieved a certain economic output. 2 nine rings matrix ecosystem water quality in different regions of CODCr, TN, NH3-N and TP removal of a certain regularity. CODCr removal rate of the ecosystem from the nine rings matrix decreases with increasing distance. Increases with distance 1 #, 2 #, 3 # sampling point removal rates were 36.7%, 34.3% and 34.2%, CODCr the decline of 1 # gt; 2 # gt; 3 #. TN and NH3-N removal from the nine rings with the distance matrix ecosystem increases. Increases with distance 1 #, 2 #, 3 # nitrogen removal rates were 17.0%, 19.9% ??and 24.3%, ammonia nitrogen removal rates were 28.2%, 31.2% and 34.3% decline in total nitrogen and ammonia are to 3 # gt; 2 # gt; 1 #. Phosphorus removal from the matrix system with distance increases. Increases with distance 1 #, 2 #, 3 # TP removal rate were 22.2%, 20.0% and 18.2%, total phosphorus decrease of 1 # gt; 2 # gt; 3 #. 3 Swan Lake ecosystem in the nine ring matrix before and after repair, according to the national integrated water resources planning trophic status of evaluation criteria, resulting Swan Lake eutrophication evaluation results are integrated eutrophication status, but after more than three months The nine rings matrix ecosystem restoration, water conditions improved significantly, with an average score of 70 from the front down to repair after repair 60, total phosphorus, chlorophyll a and transparency score than before restoration declined. Visible, after just over three months of nine rings matrix ecosystem restoration, Swan Lake has had a more significant improvement in water quality from eutrophication eutrophication state to shift in trends has been formed. 4 Wave oxygen in the role of the device, the upper and lower water exchanged water continue to occur, reduce the water dissolved oxygen content difference between the layers, the lower layer of the dissolved oxygen content of water increased speed. And do not use more than the lower oxygen equipment making waves dissolved oxygen in water is high, rising fast. Wave oxygen equipment from the more recent, water bodies are more intense disturbance, upper water layer switching more fully dissolved oxygen content gap is smaller. With oxygen equipment running water circulation, aeration time increases, the dissolved oxygen content of the surface layer of water increases, more and more small rate of increase from the circulation of oxygen equipment near surface water oxygen saturation is reached first, with the distance increases, the surface water dissolved oxygen content decreased. 5 As the distance increases, the oxygen equipment making waves on sediment disturbance increasingly small, the performance of the turbidity of the water getting lower and lower, increasing transparency, and transparency of the water body showed obvious turbidity The negative correlation.
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