Construction of a New Water Treatment System Based on Material Circulation

作     者：Ima Yudha Perwira Takuji Hanashiro Lutfi Nimatus Salamah Dinesh Adhikari Kiwako S. Araki Motoki Kubo 

作者机构：Department of Biotechnology Faculty of Life Sciences Ritsumeikan University Kusatsu Shiga Japan 

出 版 物：《Journal of Water Resource and Protection》 (水资源与保护（英文）)

年 卷 期：2017年第9卷第8期

页      面：1014-1025页

学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

主　　题：Water Treatment System Material Circulation 3-Columns Unit 6-Columns Unit 

摘      要：A new water treatment system based on material circulation was constructed for purification of naturally polluted pond water in an aquarium. The water treatment system consisted of microbial columns with different flow rates (1.8 L/min/column in 6-columns unit and 2.9 L/min/column in 3-columns unit). Two hundred liters of water from a naturally polluted pond were treated for 14 days using the water treatment system. After treatment, the COD, TC, and TN had been reduced by up to 19.2%, 14.4%, and 20.1%, respectively. The bacterial biomass in the 3-columns unit was 7-fold higher than that in the 6-columns unit, and PCR-DGGE analysis showed slightly different bacterial communities between the two columns (86%). The new water treatment system also worked efficiently in a fish-cultivated aquatic environment, with TC and TN removal rates of 190 mg/week and 260 mg/week, respectively.