RESERVOIR WATER PURIFICATION WITH USE OF MICRO-BUBBLES AND SYSTEM'S PERFORMANCE
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概要
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Micro-bubbles were discharged into the lower layer in a eutrophic reservoir in order to aerate and purify the contaminated waters. Water quality has been monitored in the last 1.5 year after starting the system operation. In the first one year, the water body was more mixed and overturned by the micro-bubble aerator than we expected, although the aerator was originally designed so that only the lower layer water is aerated with minimum vertical mixing. The reason of such significant mixing was that high amount of unexpected and undesirable macro-bubbles were generated at the nozzle's outlet. Nevertheless, it was found through measurements of nutrients, metals, DO, etc. that the water quality was much more improved than before and the water purification system has been running quite well. In the last July, generator's structure was modified for preventing macro-bubble generation and then microbubbles were generated more efficiently. Water quality change after improvement of the system were also reported.
- 公益社団法人 土木学会の論文
公益社団法人 土木学会 | 論文
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