Study on Photooxidation and Biodegradation of Lignite
- DOI
- 10.2991/iceep-17.2017.84How to use a DOI?
- Keywords
- Lignite; Phanerochaete chrysosporium; Biodegradation; Photooxidation;Orthogonal optimization
- Abstract
The process conditions of phanerochaete chrysosporium degrading photo-oxidizd Inner Mongolia Shengli lignite were optimized by orthogonal test, and the effect-weight order to degradation rate was coal pulp concentration > coal particle size > incubation time > inoculum size, the optimal process conditions determined were coal particle size of 75 45 m, coal pulp concentration of 0.2000 g/20 mL, incubation time of 14 d and inoculum size of 2.0 mL/20 mL. Under the optimal conditions, the experiment was carried out and its products were tested. The proximate and ultimate analyses of raw, photo-oxidized and residual lignite indicate that the effect of photooxidation and biodegradation both reduce the content of organic substances in lignite, and the increase of oxygen and hydrogen in residual lignite may be due to the degradation process accompanying by oxidation and hydrolysis reactions. The results of GC-MS of degradation liquid extracting by ethyl acetate are shown that the product contains 52 kinds of organic substances, molecular weight range from 67 to 759, mostly are aliphatic hydrocarbons, aldehydes, esters, carboxylic acids and aromatic compounds, which are consistent with the UV-VIS and FTIR spectra results of the products.
- Copyright
- © 2017, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Jian-Tao Li AU - Xiang-Rong Liu AU - Yun-Long Xu AU - Yao-Wen Zhang PY - 2017/06 DA - 2017/06 TI - Study on Photooxidation and Biodegradation of Lignite BT - Proceedings of the 2017 6th International Conference on Energy and Environmental Protection (ICEEP 2017) PB - Atlantis Press SP - 471 EP - 476 SN - 2352-5401 UR - https://doi.org/10.2991/iceep-17.2017.84 DO - 10.2991/iceep-17.2017.84 ID - Li2017/06 ER -