ONLINE MONITORING OF AN AEROBIC SBR PROCESS BASED ON DISSOLVED OXYGEN MEASUREMENT

ONLINE MONITORING OF AN AEROBIC SBR PROCESS BASED ON DISSOLVED OXYGEN MEASUREMENT

Copyright (c) 2005 IFAC. All rights reserved 16th Triennial World Congress, Prague, Czech Republic               ...

299KB Sizes 1 Downloads 43 Views

Copyright (c) 2005 IFAC. All rights reserved 16th Triennial World Congress, Prague, Czech Republic

                         !                      ! "

#

$!! %&'(

                                                     !   

       

  "             #$    

   $%&      '            

       

      

             (             

      

     )  

   

            

#*! +  )*  +  !(( ) 

,  $  " -  " $    % ) "     " &    &

. !/ &01 !/

9



         

  

: 6 .  

          

   ;  /       '   

  3 :                  <     4        4"        :  

        " 2    2   "  2     <           ! 

 " 

           " 

  

                    

    "   <    "                    :"     =   

      

   

     

2             "             Æ      '  "        (  

        ! 

%             2 3              2       

      2    " 

        2

       4

$    % &  $%&        

     

'22    #) " .555"      6     

(  . .  

      7  

   '       2   8 ,  

               

   2  3                                               !! "!!" #$ ½

376

- 

Fill

!& /*  0 1 ,  /0,

React

Idle



        

   

          

    

     

    

       ! 

   

            

             /0, D F     8 

 F  D  

     "  F  D C 

     <

     Æ   

       

              '         "    2          Æ    0+   

      

    "      

  2         !     

   "            

  !                        "   

 2  4   

      '  @   " .55G H  "    2

  

         

   " .555               

  "#       

               

           " "2#          H I            "# H I 

Settle

Draw



(  . $    )  $

  %> .55? 

      

    

       2            

 2                  

    

$%&            

       

    3    $   7         

      2   

      $   8            #$    

$%&   $   9           

              

     

        

   (           :    











                            

           . &   #: " 7CC7



!! /*  3 ,  /,



    

    2        

   :             "       2           

            

             

            . )     

 3         

       2      7 )   

   2           

         

       H    8 

          :        

   

             H 3  " 7CCC "#   2    

 

      

   "2# 

          "       2    -  2*   " .55CJ H 3  " 7CCC               

    D      E       . 











   

   "  

4  "  

4  "  

   

 "  

   

4   "  

        

   :  =                    D C  D "   .    

      2          : 

           7  

       

         .   7 









 D     





7 !$$*@# AB=#/ B/ -!1$





7

377

          *               

     "          :          

q1

e3

!' .  /*     

e5

(  7  8     D F     

q4

e4

q3

(  7 $%& )  $ 

    $%&     (  .  D   D   D    D   D 

                 "          

   '    "    

           

 

9  

     

  " :    

         

:               

:  "        3  

      

   

    !      

           "            

   

     *    1" .55G !       1$9  #  E H "    

    "        2  '  *$(    

         *    1 .55G       >   $  .5K5             

     $      '  $!(                     '     " 

       '     

$!( 

q2

e1 q0



e2



9 -/! &!/= ( H# $#L0#/ ! * )&1#$$    

    

 #$  " 

 9            H  "   

                 

                            -  2 *   " .55CJ *    1" .55G  

       

     

                       9   

        

 "      . 

    '   

  2         

 2    

          7                      

    4   

           

       #$   

(  8     

8 (&- * -#* ( H# $#L0#/ ! * )&1#$$        "      

    

    



              (  .           2         #$  "  2 '          12  .558" K7

    2  

(  7    '   

' 2    M   



 D      

   D      M D M  M  D   M  D  

M  D   M  D      D      D     D 

    D      D 

    D  G 

  D, 4    D0 4,  

 D       D      M D M  D   M  D  M  D  

M  D   M  D   D     D     D     D 

   D     D 

 D  6 

   

    "  

    " M 

       "  

          

        

          





 , 4  &       

  

 

:         

D C         2      "         -





378

e7

q5 e6

q1

e2

q2

e1

0   5 

           '      

   %        2             C %%    

           D C"   D     .  7  ,  "7  -8  94  #"            

& 2    "   ;  2      '           $P P  $  .5K5" $  9 . 7  :  1 ;    64 "         '           $P P  $2  .5K5" 876

  

,       &   *  $      

           

      

   $RC  

'     & C   %       

     '           #*!     '      (  9          '    2        R D CCC9G.S T  

   

, '     

    

     

      

         & C D .CC  $C D C" R D CCC9G9S T  

  

 

           

           

        "  

     

'   

 2     

      

  '    4    

   

           

 

        D CCC9G?S T     %    7CC9  

 

      

    '   

         2          

    

   R      $C  

    

    H  "         

   "   

           2  UU               %    / :  .558

e8



e9 q6

e3

q0







e10

e5 q4



q3

e4

(  8 #   $  . D C  D  7  D  8  D  D 









     &        

 

      <       "  : 

 &      

 9

                    

 " :    

     " 

         

      

              

   -

(  9                N 2 2H NH       OP    : .5K9

! E .   ! E  ! 













 

.   

! E . D 



 

 

?



 

    "  ! E . D !  "! K 

 

    <" 

 "     

      ! 

 3  





5& /  6 1





     

        

 

  4    *    1" .55G  #    2         "    

     I     '    

      

      

     %   

 2  "     

       ?  Q! D $ Q!  . 5       

 <    

  2           !  !  .      

    

        OP    :" .5K9" .K." 

 Q!   D !    !   E.  $ D   /    5         

  

      



5! /2  1 + ,   ,

$  

        '    

       "        R    :    

    I         

                   ? 1              

"         ! E  D ! E !   C %  % . .C 









379

0.025

7

6

Std COD/N −20% COD/N −50% COD/N

0.02

r(t) [mgl−1s−1

O [mg/l]

5

4

0.015

0.01

3 0.005

2

A B •

1 0.95



O(t) Sensor O(t) Filter 1

1.05 t [s]

1.1

0 0.8

x 10

1.4

1.6

1.8 4

x 10

(  6 &    & )     ..

       2              "  <    

$1                      " 

   :  

 

     '  

1U/    

4    "          

 

 

                       

2       1U/    

4            

   , 4   :   

               

    

       2           +        



   .  ) ' D  )  R  ( D . C ) C .    ) D      *! D !           !              (   :"    

 





1.2

4

(  9 )   !  '       !      /   ?  .C    

        ! E .  D '  !  E ( ! E  C  ! ! E . ! . 



1

t[s]

1.15



R!! D   + 'R!  .!  . E ( !  . E *! ..   + D S. CT        

5' 0  1 -2  ;  





    

       2     "  D  D   

                2      

      

      

      K   

     

      7 !  .  !  !  7 D C .7            

               

              

  !       :               J        :    J 

(  8 !        "   

      

 

'  

              

   

 ..      OP    :" .5K9



 <   

#*! +         

             /  ,             

     

   "    2 +          

  " 

 2   4  ,  

  '      !     '        

 

                  

; 

                  2    

       2       1U/  

4 "

 

    :  

 

1U/    

4     

   

<  (  6    

     '   

      '      "# $ 1   $1" +-,  D K" "2# 7CV    1U/    

4   "# 6CV    1U/    

4 "    9 1

6 1/1*0$!/$       

        2  

  

   $%&     3   

             !        

2                

 

380

% " - "      H (   7CC9 # : : 7 -            '     & 2      7 8 @   -  #2   1  &  

1" 1 = .558 .  9  -*  4    ; 1  * :     #) " 0 $ .555 =  0 + *  -+  4 - 8  <+ ,   #) K872 (2552C?8 H 3 " - "  =+ " -   -  *2       7CCC       ." 7" 7  8    & 2  / 5 ! )   ! " &  ) %> .55?    

      2                   )  9  ;  $6" ?C5W?.5 *  " 1 2(  % 1 .55G # 2    

        2       3       = - 0 + ""." 876W888 -  2*   " $ .55C              

      ! 99 ;    )  0+  *  4  @ .8?2G 895W86G & " X %  X = #:  7CC7 )+ 

.

    '   



            

 2                         2             

   

   

 

                           7

      

        

    "  

  :         

         <       2     B   7CCC"       2                    ' !                         2          8            "          

                       

   2  :      ;    "                      

             2     

   '       

      

#*! +           " 

     

    

$%&               

    "    

    2    

      / 

 " 

                       

     

       "               





,  *  .    

/ H  )  " **1 $P P"  ) $  .5K5 -*   4 6 )   H !   H   H   " 0, "  .555              ! ;    1 + - 

 4

 " ; >># @ . 9..W9.G @ " X 1 " , + :" X %  *    H &:  .55G   <   

      

 7C  66  = ,  "%8" .C8?W.C9. B" # " ) *  ) ( =

'  7CCC !                  

    = ,  "%." 785W796

G 1,/*#=-#/ $

:  

#*! : ): ) .    

  '       ) 7  

      '  <    :  

    : 

     

     &#(#&#/1#$

> "  - $  .5K5     2           999 0    - +  - 

;   "#7" 7.?W77G OP" , X  %   : .5K9 )4  )   -*  )   H #2   1 <" 0, %   " -  ! @ / :  .558 .  4  1 2  )+  4 0+  *  4 

  )1  

 ;    1  1  4

)   2H" !

381