An innovative attached-growth biological system for purication of pond water

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Journal Article
Bioresource Technology, 2010, 101 (5), pp. 1506 - 1510
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This study applied the non-woven material from used diaper as the carrier for bio-film process to purify the recycled water from a landscape pond at the Tainan City Municipal Culture Center (TCMCC), Taiwan. An on-site system was installed and the experiment was accomplished through three stages in 192 days with different time periods of 70 days, 63 days, and 59 days, respectively. The results showed that the non-woven media is functional for SS removal. The average SS removal of stages 1, 2, and 3 were 91%, 96%, and 95%, respectively. The highest SCOD removal efciency of 90% occurred at stage 3. A signicant color improvement of the pond water was achieved through this non-woven bio-carrier treatment sys-tem. Whole system can be without any maintenance for 139 days. The result indicated that the non-woven medium system was with a great potential in treating and recycling the pond water with stable operation and satisfactory removal performance. © 2009 Elsevier Ltd.
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