College of Resources and Environmental Engineering, Guizhou University, Guiyang, 550025, China.
Observation and Research Station for Guizhou Karst Environmental Ecosystems, Guiyang, 550025, China.
Sci Rep. 2020 Nov 3;10(1):18929. doi: 10.1038/s41598-020-75980-z.
The catalytic hydrotreatment of sewage sludge, the wet solid byproducts from wastewater treatment plants, using supported Ir, Pt, Pd, Ru catalysts had been investigated with different solvent conditions. Reactions were carried out in a batch set-up at elevated temperatures (400 °C) using a hydrogen donor (formic acid (FA) in isopropanol (IPA) or hydrogen gas), with sewage sludge obtained from different sampling places. Sewage sludge conversions of up to 83.72% were achieved using Pt/C, whereas the performance for the others catalysts is different and solvent had a strong effect on the conversion rate and product constitution. The sewage sludge oils were characterised using a range of analytical techniques (GC, GC-MS, GCxGC, GPC) and were shown to consist of monomers, mainly alkanes and higher oligomers.
采用负载型 Ir、Pt、Pd、Ru 催化剂，在不同溶剂条件下对污水处理厂的湿固体副产物——污水污泥进行催化加氢处理进行了研究。在间歇式装置中，在升高的温度（400°C）下，使用氢供体（异丙醇中的甲酸（FA）或氢气）进行反应，所用的污水污泥取自不同的采样地点。Pt/C 可使污水污泥转化率高达 83.72%，而其他催化剂的性能则不同，溶剂对转化率和产物组成有很强的影响。采用一系列分析技术（GC、GC-MS、GCxGC、GPC）对污水污泥油进行了表征，结果表明其由单体组成，主要为烷烃和高聚物。
