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| 1 | Study on the resource utilization of high fluorine-containing organic waste through fluidized incineration显示文摘In this study,the method of fluidized incineration and water washing to recover hydrogen fluoride(HF)was proposed to dispose of high fluorine-containing organic waste.The resource utilization of the waste was investigated in a fluidized bed incinerator with a disposal capability of 10 t/d.The evolution characteristics of fluorine,operation conditions of the incineration system,absorption coefficient for HF by water washing,and HF corrosion during combustion were assessed.The results showed that HF and fluorocarbons were detected as the initial gaseous fluorides released during combustion.The release of HF could be divided into three stages,in which HF was generated from the volatilization of HF in the waste and the hydrolysis of fluorine in water-soluble salts(60–220℃),oxidative decomposition of fluorinated organic components and residual carbon(220–800℃),and hydrolysis of insoluble fluorinated inorganic minerals(800–1000℃).Fluorocarbons could be destroyed through reactions with free radicals H,O,and OH or through single-molecule decomposition.Enhancing the temperature in the furnace and increasing the content of oxygen and hydrogen in the incineration materials were conducive to reducing the generation of fluorocarbons.By sampling and analyzing the bottom slag,bag filter ash and exhaust gas during the field test,the relevant pollutant discharge could meet the national emission standards.The waste heat utilization of high-temperature flue gas and the recovery of hydrofluoric acid and hydrochloric acid were realized.In the recovery of HF by water washing,the total absorption coefficients for 1#to 4#packed absorbers were 52.38 kg/(h m^(2)),39.96 kg/(h m^(2)),5.98 kg/(h m^(2))and 3.89 kg/(h m^(2)),respectively.In the actual operation,alumina showed good corrosion resistance to high-temperature HF and could be used as bed materials or refractory materials.Low-temperature corrosion of HF occurred in the quenching heat exchanger,which was damaged after 6 months of continuous operation.High-temperature corrosion of HF occurred in the waste heat boiler.No significant corrosion was observed in the 24 months of operation. | Wenhan Li Zengyi Ma Jianhua Yan Qianming Huang Xingjian Wen Zian Zhai Bochen Huang Shuang Wang Yongqiang Chen | 2022 | Waste Disposal and Sustainable Energy2022，4，2： | 0 |
| 2 | Correction to:Study on the resource utilization of high fluorine-containing organic waste through fluidized incineration显示文摘Correction to:Waste Disposal&Sustainable Energy(2022)4:117-129 http://gffzzd3cc09b8251d45dfsok59k60fxxuw6von.ffgz.tsg.suse.edu.cn/10.1007/s42768-022-00101-7 The section Confict of interest'has been amended:'Jian-hua Yan is the Editor in-Chief of Waste Disposal&Sustain-able Energy.'The revised'Confict of interest'is as follows:Jianhua Yan is the Editor-in-Chief of Waste Disposal&Sustainable Energy.On behalf of all authors,the corresponding author states that there is no conflict of interest. | Wenhan Li Zengyi Ma Jianhua Yan Qianming Huang Xingjian Wen Zian Zhai Bochen Huang Shuang Wang Yongqiang Chen | 2023 | Waste Disposal and Sustainable Energy2023，5，2： | 0 |
| 3 | Time of impact of fragment P2 of comet SL 9 on Jupiter显示文摘FROM 1994-07-16 to 1994-07-22, 21 fragments of comet SL 9 impacted against Jupiter in succession. During the impact period the impact of fragments D, E, K, N, P2 and S was observed in China. We used a 1.56-m telescope with the CCD camera of Shanghai Observatory to monitor Jupiter and its Galilean Satellites, obtaining 1000 high-quality images at B, V, I wave bands. Our data on optical wave bands are rather complete and valuable in the world. Specially, we got some images of Jupiter, Io and Europa in the impact time of fragment P2 impacting against Jupiter. This will help us understand the precise time, position, depth and energy of the P2’s collision. In this note, we report the impact time of fragment P2 of comet SL 9 and Jupiter. Since the impact of comet SL 9 was expected to take place on the side of Jupiter | ZHOU Hongnan,QIAN Bochen, HUANG Keliang and LI Qibin1. Department of Astronomy, Nanjing University, Nanjing 210093, China 2. Shanghai Observatory, Chinese Academy of Sciences, Shanghai 200030, China 3. Physics Department, Nanjing Normal University, Nanjing 210097, China 4. Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing 100080, China | 1997 | Chinese Science Bulletin1997，42，5： | 0 |
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