摘要：Hydrochar is a carbonaceous material derived from hydro thermal liquefaction, and it carries good potential as a new material for environmental applications. However, little is known about the dissolved organic matter (DOM) associated with hydrochar and the consequences of its release. The relationship between the production temperature and the characteristics of DOM released from hydrochar as well as the associated biotoxicity was investigated using a suite of advanced molecular and spectroscopic tools. With the increase in production temperature, the resulted hydrochar-based DOM contained a higher content of phenols and organic acids but less sugars and furans. Meanwhile, the molecular structure of DOM shifted to lower molecular weight with higher organic contents containing <6 O atoms per cornpound, aromatics, and N-containing substances. While low-temperature hydrochar-derived DOM showed minimal biotoxicity, increase in production temperature to 330 degrees C led to a great rise in toxicity. This might be attributed to the increased contents of phenols, organic acids, and organics containing <6 O atoms and 1 N atom per compound. These results suggest that hydrochar-derived DOM have more negative impacts on the environment than the organics associated with biochar production. Such understanding highlights the importance of controlling the hydrochar production process.

关键字：RESONANCE MASS-SPECTROMETRY HYDROTHERMAL CARBONIZATION MOLECULAR CHARACTERIZATION LIGNOCELLULOSIC BIOMASS PYROLYSIS TEMPERATURE CHEMICAL-PROPERTIES BIOCHAR CARBON WATER CONVERSION

ISSN号：0013-936X

卷、期、页：卷: 52 期: 13 页: 7486-7495

发表日期：2018-07-03

期刊分区（SCI为中科院分区）：一区

收录情况：SCI（科学引文索引印刷版）,ESI（基本科学指标数据库）,SCIE（科学引文索引网络版）

发表期刊名称：Environmental Science and Technology

参与作者：郝诗来,朱向东,Liu, Yuchen,Qian, Feng,张士成,Chen, Jianmin,Ren, Zhiyong Jason

通讯作者：房治

第一作者：史权

论文类型：期刊论文

论文概要：郝诗来,朱向东,Liu, Yuchen,Qian, Feng,房治,史权,张士成,Chen, Jianmin,Ren, Zhiyong Jason，Production Temperature Effects on the Structure of Hydrochar-Derived Dissolved Organic Matter and Associated Toxicity，Environmental Science and Technology，2018，卷: 52 期: 13 页: 7486-7495

论文题目：Production Temperature Effects on the Structure of Hydrochar-Derived Dissolved Organic Matter and Associated Toxicity