Department of Food and Agricultural Product Technology, Andalas University, Padang, Indonesia.
Department of Mechanical Engineering, Malang State University, Malang, Indonesia.
J Environ Public Health. 2023 Jan 28;2023:5823207. doi: 10.1155/2023/5823207. eCollection 2023.
This research aimed to assess the effectiveness of nanocellulose biofilter (NCB) made from pineapple peel waste to reduce the number of microbes in water. Further processing of cellulose from nata de pina into nano size was proposed, then transformed into a filter membrane. Three types of NCB were developed: bacterial cellulose acetate membrane, bacterial cellulose acetate membrane with TiO treatment, and bacterial cellulose acetate membrane with TiO and graphite nanoplatelet treatment. These NCBs were used to filter microbes in several water sources in Padang City, West Sumatra Province. The filtering process was carried out using a filter holder where the NCB had been installed. The number of microbes contained in the water, including , was determined before and after filtering. As a result, all NCBs reduced the total microbes in water by about 50%. Furthermore, when applied to water pollutant bacteria, , all prepared NCBs reduced them by more than 90%. The effectiveness of all NCBs to remove microbes' contamination, especially bacteria, looks very promising with or without TiO and graphene reinforcement. Although the efficacy of all NBC for microbial water purification was relatively similar, further experiments to clarify the superior of TiO and graphite nanoplatelet on NCB need to be carried out, especially in reducing chemical contamination.
本研究旨在评估由菠萝皮废物制成的纳米纤维素生物滤器 (NCB) 在减少水中微生物数量方面的有效性。提出了进一步将 nata de pina 中的纤维素加工成纳米尺寸，然后转化为过滤膜。开发了三种类型的 NCB：细菌纤维素醋酸酯膜、经 TiO 处理的细菌纤维素醋酸酯膜和经 TiO 和石墨纳米片处理的细菌纤维素醋酸酯膜。这些 NCB 用于过滤西苏门答腊省巴东市的几种水源中的微生物。过滤过程在安装了 NCB 的过滤器支架中进行。在过滤前后测定水中包含的微生物数量，包括 。结果表明，所有 NCB 都将水中的总微生物减少了约 50%。此外，当应用于水污染物细菌 时，所有制备的 NCB 将其减少了 90%以上。所有 NCB 去除微生物污染，特别是细菌的效果非常有前景，无论是否添加 TiO 和石墨烯增强剂。虽然所有 NBC 对微生物水净化的功效都相对相似，但需要进一步进行实验以澄清 TiO 和石墨纳米片在 NCB 上的优势，特别是在减少化学污染方面。
