1、 23 3 2 0 1 0 M 6 / POLLUT ION CONTRO L TECHNOLOGY V o.l 23, N o. 3 Jun., 2 0 1 0 null专论与综述null 5 / ) c l Z * null S , null B , null , null Z ! (中南大学冶金科学与工程学院, 湖南 长沙null 410083) K null 1 : 5 / , 8 / c l ) V C b / y a Q l a r q a V V l l CaF2 , B z / , z - b 1 o M : 5 ;c l ; Z m s | : X 703. 1null nu
2、ll null D S M : A Development of Fluidized Bed Crystallization Technology in Fluoride- containingWastewater Treatment JIANG K e, null ZHOU Kangnullgen, null LI Chengnullw en, null WANG H ainulltao (S chool of M etallurg ical Science and Eng ineering, C entral South University, Changsha, H unan 41008
3、3, China ) Abstract: T he princip le o f flu id ized bed cry sta llization techno logy was in troduced, the curren t status of the techno log ical studies on fluor ide- conta in ing wastewa ter w as summa rized. T his techno logy had m any advantages, such as high speed o f crysta lliza tion, sm a l
4、l space of reactor, h igh rem ov al effic iency, and cou ld reuse C aF2 from wastew ate r. It w as an env ironment- friendly techno logy and had brigh t prospect in industrial app lication. K ey words: fluidized bed crysta llization; fluo ride- con taining w astewa ter; deve lopm ent l : 2010 - 03-
5、03 * : 2 8 S / v : S T u h 8 1 3 ? h / 7 ? U S (0 : c l # F ) ( 2009FJ1009) T e : null S ( 1984 ), 3 , 2 M , V 3 , V Y c l ) b null null B 8 r B M M 1 A , 8 V , ( r B 3 b a ? , * y . # 8 = B T b 8 | V H , 1 b N , S E ? c 1 l 1. 0 m g /L 2 , l 0 i 10 m g /L(B ) S ) 3b1 , 1 F a F ab F b t c T 1 , aA a
6、j A a 8 3 # a F a j 0 g 3 W , 3 V b c l 8 ar a # 8 / v by N , r c l ) / , S = B 1 5 b - ,c l ) Z E , 1 E a E a E a E aQ 1 i E a 0 E 4, 5b L = ) V , E a E # E F c l ) 6 , 5 K V P 0 i r S b, ) , O ? l 3 CaF2 ,i v C b M , . d E $ , C B / 5 / b / Q y a l a 3 C , c l ) z - b 1null 5 / , 5 Z E , Q 8 F % 8
7、 A ,| 1 A V b / 7, 8 , Q A a R T ,l V Q , B , P ) ; g F 4 , P ) 2010 M 6 null S null 5 / ) c l Z null 69null null 3 ( M a V ,Q 3 4 , d ( M ; V , 9 v F , v Q ; d b B v R , H , Q b 5 / c q , a ) b Y 5 V 1 y 9Q 4 a H q # 4 F b 5 V P Q , 5 ( F lu id ized bed crysta llizers), R Q ( Pelnull let reacto r)a
8、 5 Q ( Fluidized bed reactor)b 4 5 , Q ? a T z a ? z a z a a a H , 5 F aC aF2 CaCO3 T b 5 H q 4 5 : a r q # - 4 / , v a z b e 4 , 1 ( M i e b . d V M 1 , 5 / | . d V Q a% A s a C ? ) B 8 ,Q V O 3 C , ; V P 0 i r S b, V r l 3 CaF2 , - S = X / L i ,i | v Z b 2null C 9 F V , T V : 0 i 79. 8 m g /La$ 1
9、, 1 T = H W 1!6, 10. 3 kg /m2 null h, pH = 4. 34b 5 200 m g /L c l ) , 9 i 291 m g /L, V i 180 m g /Lb M in Yang 14 V , 5 F 4 m g /L CaF2 T , V v v 9 i c l ( 50 m g /L) 0 r T b 3 Z E ,5 | s l 9 C a2+ , : l , N 3 C aF2 V F E b Kristel 15 5 Q ) HFl , i a 0 4 V apHa0 4 g b Z T ( g ba g b) y Y b V ,Q v
10、G S a i b i V v , P $ 9 v , CaF2, 0 4 , i 6 b| 0 4 g bZ T , V a V ,y N V C aF2 r q b g F H K v 3. 5 kg /m2 null h, g F H V r 7 kg /m 2null hb A ldaco 16- 20 V T d , Z E B K D V / ( Best available technology )b T V : V Y a% R r q 1 y , V % R , q , | S 0 i e 150 m g /L null 70null null null S null 5 /
11、 ) c l Z 23 3 = bi 4 8 3 : G = 4. 93 10- 7L1. 370 V0. 5 S, G = ( 2. 26 10- 10 + 2. 82 10- 3L20 ) V0. 5 S ( V: V 4 , m / s; L0: ( , m; S: V ; G: L 3 , m /s), L E s b 5 V , T , , l q V r 70% 80%, l B r 97%, V T _ 3 ,V 7 h b C lifford 21 C aF2 5 3 ,Y V pH , E A l u bT lgC ( C a) - lgC ( F)m V , CaF2 #
12、V w L t b u , 8 3 q V apHaV 4 a 9 v 7 9 v , i # 4 M 7 M b 8 3 V ,. V Q E F 1 Y y b Aurora Garea 22 5 , Ca( OH ) 2T 0 4 , A lF3 3 V l l , l CaF2 l 65%, M A lF3 3 V CaF2 5% , 5 V l E s r , F ( C aF2 ) 1 i l b 3null - Z . d E Z E e a) Z L a ar T z + , - W Z E , C ? , 4 , i 4 r S bT B / 5 / , a , 3 C ,
13、l aQ y a q a 3 = Q ,K 1 / V r l l , 3 B C aF2 8 , V h , V B ? #M l z / b , 5 / i B t , ) V e , , O - 1 L i , b X L ,X s 5 / T , . c l ) Z J. ? , 2007, 38 (9 ): 3 320- 3 322. 6 null null , d . l F J . S , 2003, 19( 13 ): 93- 94. 7 null u null , null , f null H . E ) l Z J. , 2007, 36( 10 ): 1 021. 8
14、null null , V . / ) J. S , 2004, 20 ( 9): 24 - 26. 9 null null . 8 E # D. : y S / v , 2004. 10 null ) . l L D. : y S / v , 2005. 11 null Cornelis W, Jansen. Process for the Rem oval of Fluorid e from W asteW ater P. US: 5106509A, 1992- 03- 21. 12 null LeeM S, L iao C C, H omg R Y. Crystallization Pr
15、ocess forRemoving F luoride from W asteW aterP. US: 6235203B1, 2001- 05- 22. 13 null LeeM S, L iao C C, Shao H, et a.l Process for Rem oving Flunull oride from W asteW ater P. US: 6210589B1, 2001 - 03- 03. 14 null Yang M. P recipitative R emoval of Fluorid e from E lectron ics W astew ater J . Env i
16、ronm en t Engin eering, 2001, 127 ( 10 ): 902- 907. 15 null KristelV, Naus ikaa V, Jan V, et a.l Sustainab le Treatm en t of H FW astew aters from S em iconductor Industry w ith a F lu id ized B ed Reactor J. IEEE T ransaction s on Sem iconductor M anunull factu ring, 2003, 16( 3 ): 423- 428. 16 nul
17、l A ldaco R, Irab ien A, Lu is P. Flu id ized B ed R eactor for F luoride Rem oval J nullCh em icalE ngineering Journa,l 2005, 107: 113. 17 null A ldaco R, G area A, Irab ien A. M odeling of Particle Grow th: Application toW ater Treatm en t in a Flu id ized Bed Reactor J. Chem icalE ngineering Jour
18、na,l 2007, 134: 66- 71. 18 null A ldaco R, Garea A, Fernnullnd ez I, et a.l R esources R eduction in th e F luorine Industry: Fluorid e Rem oval and R ecovery in a F lu id ized Bed Crystallizer J. C lean T echn En viron Policy, 2008, 10: 203 - 210. 19 null A ld aco R, Garea A, Irabien A. C alcium Fl
19、uoride Recovery from F luoride W astew ater in a Flu id ized Bed R eactor J. W anull ter Research, 2007, 41: 810- 818. 20 null Rubnulln A, AuroraG, Angel I. Fluorid eR ecovery in a F lu id ized B ed: Crystallization ofC alcium Fluoride on S ilica Sand J. Innull du strial& Eng ineering Chem istry Res
20、earch, 2006, 45( 2): 796. 21 null C lifford Y, Taia P C, Chenb, et a.l G row th K inetics ofC aF2 in a pH - stat F lu id ized - bed C rystallizer J. Jou rnal of Crystal Grow th, 2006, 290: 576- 584. 22 null Garea A, A ld aco R, Fernnullndez I, et a.l In tegration along the L ifecycle of Calcium F luoride in th e F luorine Industry A . 16 th Eu ropean Sym pos ium on Com pu ter A id ed Process Enginull n eering and 9th In ternationa l Sym pos ium on Process System s Eng ineering C. s. 1. : s. n. , H W . 811- 816.
