Znn3bq.jpeg
²é¿´: 6200  |  »Ø¸´: 84
¡¾½±Àø¡¿ ±¾Ìû±»ÆÀ¼Û75´Î£¬×÷Õßopq691Ôö¼Ó½ð±Ò 70.2 ¸ö
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

opq691

ÈÙÓþ°æÖ÷ (ÖªÃû×÷¼Ò)


[×ÊÔ´] ¡¾×ÊÔ´¡¿½ºÌ廯ѧParticles in water : properties and processes ¡¾ÒÑËÑË÷ÎÞÖØ¸´¡¿

¡¾2006Taylor & Francis½ºÌ廯ѧÐÂÊé¡¿Particles in Water Ë®ÌåÖеĿÅÁ£Îï
Particles in water : properties and processes



Contents
Chapter one Introduction..................................................................................1
1.1 Particles in the aquatic environment..........................................................1
1.1.1 Origin and nature..............................................................................1
1.1.2 Particle size ranges............................................................................2
1.1.3 Effects of particles in water .............................................................5
1.2 Colloidal aspects ............................................................................................5
1.2.1 Classification of colloids ..................................................................6
1.2.2 Stability of hydrophobic colloids ...................................................7
1.2.3 Particle separation processes...........................................................8
Further reading .......................................................................................................8
Chapter two Particle size and related properties.........................................9
2.1 Particle size and shape..................................................................................9
2.2 Particle size distributions ...........................................................................10
2.2.1 General..............................................................................................10
2.2.2 The log-normal distribution ..........................................................14
2.2.3 The power law distribution...........................................................17
2.3 Particle transport..........................................................................................19
2.3.1 Fluid drag .........................................................................................20
2.3.2 Diffusion ...........................................................................................22
2.3.3 Sedimentation ..................................................................................23
2.3.4 Effect of particle size.......................................................................25
2.4 Light scattering and turbidity....................................................................26
2.4.1 General..............................................................................................26
2.4.2 Turbidity and light transmission..................................................28
2.4.3 Rayleigh theory ...............................................................................30
2.4.4 Mie theory ........................................................................................33
2.4.5 Anomalous diffraction....................................................................37
2.4.6 Rayleigh-Gans-Debye scattering...................................................38
2.5 Measurement of particle size .....................................................................38
2.5.1 Direct methods (microscopy) ........................................................39
2.5.2 Particle counting and sizing..........................................................40
2.5.3 Static light scattering ......................................................................43
2.5.4 Fraunhofer diffraction ....................................................................44
?2006 by Taylor & Francis Group, LLC
2.5.5 Dynamic light scattering................................................................44
2.5.6 Sedimentation methods..................................................................45
Further reading .....................................................................................................46
Chapter three Surface charge .........................................................................47
3.1 Origin of surface charge .............................................................................47
3.1.1 Dissolution of constituent ions .....................................................47
3.1.2 Surface ionization............................................................................49
3.1.3 Isomorphous substitution..............................................................51
3.1.4 Specific adsorption of ions ............................................................51
3.2 The electrical double layer .........................................................................52
3.2.1 The double layer at a flat interface ..............................................52
3.2.2 Charge and potential distribution in the double layer.............55
3.2.3 Spherical particles ...........................................................................57
3.3 Electrokinetic phenomena ..........................................................................58
3.3.1 The plane of shear and the zeta potential ..................................59
3.3.2 Electrophoresis and electrophoretic mobility.............................60
Further reading .....................................................................................................62
Chapter four Colloid interactions and colloid stability...........................63
4.1 Colloid interactions ?general concepts .................................................63
4.1.1 Importance of particle size ............................................................63
4.1.2 Force and potential energy............................................................64
4.1.3 Geometry of interacting systems..................................................65
4.1.4 Types of interaction.........................................................................66
4.2 van der Waals interaction...........................................................................67
4.2.1 Intermolecular forces ......................................................................67
4.2.2 Interaction between macroscopic objects ....................................67
4.2.3 Hamaker constants .........................................................................70
4.2.4 Effect of dispersion medium .........................................................72
4.2.5 Retardation .......................................................................................74
4.3 Electrical double-layer interaction ............................................................75
4.3.1 Basic assumptions ...........................................................................75
4.3.2 Interaction between flat plates and spheres ...............................76
4.4 Combined interaction ?DLVO theory ...................................................78
4.4.1 Potential energy diagram...............................................................78
4.4.2 Effect of ionic strength ?critical coagulation
concentration....................................................................................80
4.4.3 Specific counterion adsorption .....................................................84
4.4.4 Stability ratio....................................................................................86
4.5 Non-DLVO interactions ..............................................................................88
4.5.1 Hydration effects .............................................................................88
4.5.2 Hydrophobic attraction ..................................................................89
4.5.3 Steric repulsion ................................................................................90
4.5.4 Polymer bridging ............................................................................91
Further reading .....................................................................................................92
?2006 by Taylor & Francis Group, LLC
Chapter five Aggregation kinetics.................................................................93
5.1 Collision frequency ?Smoluchowski theory ........................................93
5.2 Collision mechanisms..................................................................................94
5.2.1 Brownian diffusion ?perikinetic aggregation..........................95
5.2.2 Fluid shear ?orthokinetic aggregation ...................................102
5.2.3 Differential sedimentation ...........................................................105
5.2.4 Comparison of rates .....................................................................106
5.2.5 Effect of hydrodynamic interactions..........................................107
5.3 Form of aggregates ....................................................................................109
5.3.1 Fractals ............................................................................................ 110
5.3.2 Collision rate of fractal aggregates............................................. 113
5.3.3 Density of fractal aggregates....................................................... 115
5.4 Strength and breakage of aggregates ..................................................... 116
Further reading ................................................................................................... 119
Chapter six Coagulation and flocculation .................................................121
6.1 Terminology ................................................................................................121
6.1.1 “Coagulation?and “flocculation?..............................................121
6.1.2 Destabilizing agents......................................................................122
6.2 Hydrolyzing metal coagulants ................................................................123
6.2.1 Hydrolysis of metal cations.........................................................123
6.2.2 Polynuclear hydrolysis products................................................126
6.2.3 Action of hydrolyzing coagulants..............................................127
6.2.4 Charge neutralization by adsorbed species..............................127
6.2.5 “Sweep?flocculation ....................................................................129
6.2.6 Overview ........................................................................................131
6.2.7 Practical aspects.............................................................................132
6.3 Polymeric flocculants ................................................................................133
6.3.1 Nature of polymers and polyelectrolytes in solution .............133
6.3.2 Examples of polymeric flocculants ............................................135
6.3.3 Polymer adsorption ......................................................................137
6.3.4 Bridging flocculation ....................................................................139
6.3.5 Charge neutralization and “electrostatic patch?effects .........140
6.3.6 Kinetic aspects of polymer flocculation ....................................142
6.3.7 Applications ...................................................................................147
Further reading ...................................................................................................148
Chapter seven Separation methods ............................................................149
7.1 Introduction ................................................................................................149
7.2 Flocculation processes...............................................................................149
7.2.1 Rapid mixing .................................................................................150
7.2.2 Floc formation................................................................................151
7.3 Sedimentation.............................................................................................153
7.3.1 Basics ...............................................................................................153
7.3.2 Sedimentation in practice ............................................................154
7.3.3 Upflow clarifiers............................................................................156
?2006 by Taylor & Francis Group, LLC
7.4 Flotation.......................................................................................................157
7.4.1 General............................................................................................157
7.4.2 Dissolved air flotation ..................................................................158
7.5 Filtration ......................................................................................................162
7.5.1 Deep bed filtration ........................................................................162
7.5.2 Membrane filtration......................................................................170
Further reading ...................................................................................................173


ÕÒÁËÒ»Ìì²ÅÕÒµ½£¬ÏÈÃâ·Ñ·ÖÏí

http://d.namipan.com/d/9fabe1340 ... 7f513a83d0a3be03800

[ Last edited by dfq0730 on 2009-9-27 at 18:04 ]
»Ø¸´´ËÂ¥

» ÊÕ¼±¾ÌûµÄÌÔÌûר¼­ÍƼö

Better Resouces Ó¢ÎÄÔ­Öø ôÓÐÏÂ

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

wwwandy

Ìú¸Ëľ³æ (ÕýʽдÊÖ)


¡ï¡ï¡ï¡ï¡ï ÎåÐǼ¶,ÓÅÐãÍÆ¼ö

лл£¬·Ç³£¸Ðл
45Â¥2009-08-24 11:14:37
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 85 ¸ö»Ø´ð

huyc1970

½ð³æ (ÕýʽдÊÖ)


ºÃ×ÊÁÏ£¬Ó¦¸Ãѧѧ£¡£¡£¡
3Â¥2009-08-22 22:30:58
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
¡î ÎÞÐǼ¶ ¡ï Ò»ÐǼ¶ ¡ï¡ï¡ï ÈýÐǼ¶ ¡ï¡ï¡ï¡ï¡ï ÎåÐǼ¶
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 348Çóµ÷¼Á +3 candyyyi 2026-04-09 3/150 2026-04-09 17:20 by ¶ÎΰÑÞ
[¿¼ÑÐ] ±¾¿ÆÖ£ÖÝ´óѧ£¬Ò»Ö¾Ô¸»ª¶«Ê¦·¶´óѧ282Çóµ÷¼Á +23 Ðܸçxtk 2026-04-07 26/1300 2026-04-09 17:17 by 18446523
[¿¼ÑÐ] ¿¼ÑжþÂÖµ÷¼Á +5 ¹ÊÈË?? 2026-04-09 5/250 2026-04-09 16:44 by 271179835
[¿¼ÑÐ] µ÷¼Á +3 ÇàµÆ²»¸º 2026-04-09 3/150 2026-04-09 15:28 by ÊÍ·ÅÌìÐÔ
[¿¼ÑÐ] 293µ÷¼Á +21 yj1221 2026-04-08 22/1100 2026-04-09 08:34 by 5268321
[¿¼ÑÐ] »úеר˶273ÇëÇóµ÷¼Á +6 ¸ýÉêÈÉÉê 2026-04-07 6/300 2026-04-08 22:41 by bljnqdcc
[¿¼ÑÐ] Ò»Ö¾Ô¸211£¬0703»¯Ñ§305·ÖÇóµ÷¼Á +20 ÑÏÎ÷Î÷Ï· 2026-04-06 26/1300 2026-04-08 22:12 by ¿­¿­Òª±ä˧
[¿¼ÑÐ] Èí¼þ¹¤³ÌÇóµ÷¼Á22Èí¹¤296·ÖÇóµ÷¼Á£¬½ÓÊÜ¿çµ÷ +4 yangchen2017 2026-04-08 5/250 2026-04-08 21:56 by ÍÁľ˶ʿÕÐÉú
[¿¼ÑÐ] »úе¹¤³Ì313·ÖÕÒ¹¤¿Æµ÷¼Á +3 ˫һÁ÷±¾¿Æ»úе 2026-04-08 3/150 2026-04-08 20:41 by ÍÁľ˶ʿÕÐÉú
[¿¼ÑÐ] Ò»Ö¾Ô¸Äϲý´óѧ£¬085600£¬344·ÖÇóµ÷¼Á +11 µ÷¼ÁÉϰ¶«^ 2026-04-05 12/600 2026-04-08 16:17 by luoyongfeng
[¿¼ÑÐ] 326Çóµ÷¼Á +5 9ahye 2026-04-02 6/300 2026-04-07 21:37 by lijunpoly
[¿¼ÑÐ] 301Çóµ÷¼Á +18 121. 2026-04-04 18/900 2026-04-07 17:49 by À¶ÔÆË¼Óê
[¿¼ÑÐ] һ־Ը̫ԭÀí¹¤´óѧ¼ÆËã»ú¼¼Êõר˶348£¬Çóµ÷¼ÁÖ¸µ¼ +3 nexious 2026-04-05 3/150 2026-04-07 08:19 by jp9609
[¿¼ÑÐ] 26×ÔÈ»µØÀíѧ303·ÖÇóµ÷¼Á +4 Ò»Õ½³É˶°¡°¡°¡° 2026-04-06 9/450 2026-04-06 20:35 by lin-da
[¿¼ÑÐ] »úеר˶274Çóµ÷¼Á£¬²»ÌôרҵѧУ +6 ·º·º2333 2026-04-05 8/400 2026-04-06 18:06 by ·º·º2333
[¿¼ÑÐ] µ÷¼Á Ò»Ö¾Ô¸¼ªÁÖ´óѧ357·Ö +5 .Starry. 2026-04-04 5/250 2026-04-06 09:28 by cql1109
[¿¼ÑÐ] 283Çóµ÷¼Á +5 baiiyu 2026-04-05 6/300 2026-04-05 20:35 by à£à£à£0119
[¿¼ÑÐ] 326Çóµ÷¼Á +3 ¹ËÈô¸¡Éú 2026-04-05 3/150 2026-04-05 18:32 by À¶ÔÆË¼Óê
[¿¼ÑÐ] ¹¤¿Æ277·ÖÇóµ÷¼Á²ÄÁÏ +8 ÉÏÁËÉÏÁËÉÏŶ 2026-04-05 9/450 2026-04-05 13:05 by wwytracy
[¿¼ÑÐ] Êý¶þÓ¢¶þ348Çóµ÷¼Á +4 hxdzj1 2026-04-03 5/250 2026-04-03 21:25 by zhq0425
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û