| Title: | Exhaust characteristics during the pyrolysis of ZnCl2 immersed biosludge |
| Author(s): | Chiang HL; Lin KH; Chiu HH; |
| Address: | "Department of Health Risk Management, China Medical University, Taichung 40402, Taiwan. hlchiang@mail.cmu.edu.tw" |
| DOI: | 10.1016/j.jhazmat.2012.05.104 |
| ISSN/ISBN: | 1873-3336 (Electronic) 0304-3894 (Linking) |
| Abstract: | "Biosludge can be reused as an adsorbent after ZnCl(2) activation, pyrolysis, washing with HCl and distilled water, and drying. But the pyrolysis exhaust of ZnCl(2) immersed sludge can be hazardous to human health and the environment. The chemical composition, including carbon, nitrogen, hydrogen, sulfur and 21 trace elements, as well as the physical characteristics, including specific surface area, pore volume, pore size distribution and pore diameter of pyrolytic residue, were investigated in this work. In addition, the components of pyrolytic exhaust including 30 VOC species and 5 odorous sulfur gases were determined to evaluate the exhaust characteristics. The results indicated that the pyrolytic temperature was higher than 500 degrees C, the specific surface area could be over 900 m(2)/g, and the total pore volume could be up to 0.8 cm(3)/g at 600 degrees C. Exhaust concentration fractions of VOC groups were about 65-71% oxygenated VOCs, 18-21% chlorinated VOCs, 4-6% aromatic VOCs, and 6-10% acrylonitrile and cyclohexane under the specific conditions in this study" |
| Keywords: | Air Pollutants/*analysis Chlorides/*chemistry Hot Temperature Metals/analysis Porosity Sewage/analysis/*chemistry Sulfur Compounds/analysis Surface Properties Volatile Organic Compounds/analysis Zinc Compounds/*chemistry; |
| Notes: | "MedlineChiang, Hung-Lung Lin, Kuo-Hsiung Chiu, Hua-Hsien eng Research Support, Non-U.S. Gov't Netherlands 2012/06/29 J Hazard Mater. 2012 Aug 30; 229-230:233-44. doi: 10.1016/j.jhazmat.2012.05.104. Epub 2012 Jun 7" |
