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CHEN ZHUYING XU SUZHEN ZHANG JISHUN (China Institute of Atomic Energy, P. O. Box 275, Beijing, 102413). STUDY ON DEHYDRATION OF CHEMICAL SLUDGE WITH FREEZE-THAW METHOD[J]. Atomic Energy Science and Technology, 1992, 26(6): 66-66. DOI: 10.7538/yzk.1992.26.06.0066
Citation: CHEN ZHUYING XU SUZHEN ZHANG JISHUN (China Institute of Atomic Energy, P. O. Box 275, Beijing, 102413). STUDY ON DEHYDRATION OF CHEMICAL SLUDGE WITH FREEZE-THAW METHOD[J]. Atomic Energy Science and Technology, 1992, 26(6): 66-66. DOI: 10.7538/yzk.1992.26.06.0066
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STUDY ON DEHYDRATION OF CHEMICAL SLUDGE WITH FREEZE-THAW METHOD

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  • Received Date: September 24, 1991
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  • The technological condition and process for the dehydration of chemical sludge with water content over 90％ are studied by means of freeze-thaw method. The freezing point, precipitation behaviour and volume reducing ratio of the sludge are measured. The results show that the precipitation property of freeze-thaw sludge is better than that of non-freeze-thaw sludge. For the sludge with solid content (3—4)％(m/m), the volume reducing ratio is higher than 5 after freeze-thaw processing. The quickly dewatering effect and characteristics of the actual radioactive sludge freezed by liquid nitrogen are also studied.
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    • References (2)
  • [1]
    张江树等编,物理化学及胶体化学(下册),北京,人民教育出版社,1959年,第464页.
    [2]
    徐素珍等,辐射防护,2,96(1986) 。
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