College of Oceanography and Ecological Science, Shanghai Ocean University, Engineering Research Center for Water Environment Ecology in Shanghai, China; Shanghai Textile Architecture Design and Research Institute Co., Ltd., Shanghai, China.
College of Oceanography and Ecological Science, Shanghai Ocean University, Engineering Research Center for Water Environment Ecology in Shanghai, China.
Chemosphere. 2024 Jun;358:142194. doi: 10.1016/j.chemosphere.2024.142194. Epub 2024 Apr 29.
China's aquatic environment continues to face several difficulties. Ecological constructed wetland systems (CWs) can be used to treat polluted saline water to alleviate water shortages regionally and globally. However, the performance is limited by low temperatures. To expand the use of CWs, we introduced a slag-sponge, a flaky material derived from alkaline waste slag, to create a newly constructed wetland system that can operate at both low and high temperatures. We evaluated its effectiveness by placing it at different heights in our devices. The results showed that the treatment was effective for saline wastewater with multiple contaminants. The efficiency was 20% higher than that of traditional CWs. Slag-sponges were found to carry pore structures and exhibit thermal insulation, which led to the enrichment of functional microbial communities (Chryseobacterium and Exiguerium) at low temperatures according to the microbial species analysis. The enhanced CWs offer another option for the treatment of polluted saline water in the environment and provide promising strategies for the utilization of waste slag.
中国的水生态环境仍然面临着一些困难。生态构建湿地系统（CWs）可用于处理受污染的咸水，以缓解全球和地区的水资源短缺问题。然而，其性能受到低温的限制。为了扩大 CWs 的应用范围，我们引入了一种矿渣海绵，这是一种源自碱性废渣的片状材料，用于创建一种新的湿地系统，该系统可以在低温和高温下运行。我们通过在设备中放置不同的高度来评估其有效性。结果表明，该处理方法对多种污染物的咸水废水有效。效率比传统 CWs 高 20%。矿渣海绵具有孔隙结构和隔热性能，根据微生物种类分析，这导致了在低温下功能微生物群落（Chryseobacterium 和 Exiguerium）的富集。增强型 CWs 为环境中受污染的咸水提供了另一种处理选择，并为利用废渣提供了有前途的策略。
