Reuse of effluent water from a municipal wastewater treatment plant in microalgae cultivation for biofuel production
Reuse of effluent water from a municipal wastewater treatment plant in microalgae cultivation for biofuel production
复制标题
DOI：
10.1016/j.biortech.2011.03.037
复制
发表时间：
2011-09-01
影响因子：
11.4
通讯作者：
Lee, Taeho
中科院分区：
文献类型：
--
作者：
Cho, Sunja;Luong, Thanh Thao;Lee, Taeho
本研究评估了城市污水二级处理厂排放的废水用于大规模培养用于生物燃料生产的微藻的可用性。结果表明，废水中的细菌和原生动物对小球藻227的生长有不利影响。为降低影响，采用过滤或紫外辐射对出水进行预处理。在所有测试的预处理方案中，过滤（0.2 μ m）的生物量和脂质生产率最高。为了与蒸压出水的生长情况相比较，建议采用适当孔径的过滤器（小于0.45 μ m）或适当剂量的UV-B辐射（大于1620 mJ cm(-2)）进行过滤。这些发现使我们得出结论，只有在使用前大大减少或消除废水中的细菌和其他微生物，才能实现利用。(C) 2011 Elsevier Ltd.版权所有。
This study assessed the usability of effluent water discharged from a secondary municipal wastewater treatment plant for mass cultivation of microalgae for biofuel production. It was observed that bacteria and protozoa in the effluent water exerted a negative impact on the growth of Chlorella sp. 227. To reduce the effect, filtration or UV-radiation were applied on the effluent water as pre-treatment methods. Of all the pretreatment options tested, the filtration (by 0.2 mu m) resulted in the highest biomass and lipid productivity. To be comparable with the growth in the autoclaved effluent water, the filtration with a proper pore size filter (less than 0.45 mu m) or UV-B radiation of a proper dose (over 1620 mJ cm(-2)) are proposed. These findings led us to conclude that the utilization can be realized only when bacteria and other microorganisms are greatly reduced or eliminated from the effluent prior to its use. (C) 2011 Elsevier Ltd. All rights reserved.