Реферат: Очистка хромсодержащих сточных вод гальванопроизводства

                                                                                                                                                      B26                  B27              B28

                                                                                          NaOH 8%     B14       ,  B12

                                                                                                                                                               Е8              Е9           E10

                                                                              сжатый воздух                         Е3                                                                              

                              острый пар                                              

                                                                                            B7            B8                

                                                                А                К                          B9           B11            B18-21                     B22-25               очище-

                                                 B2                                                                                                                                                  нная

                                                                                    ЭД            А       насыщ       А                                                                    вода на

                                                               B3                                            ионит                                                                              водо-

                                                                                                                                                                     К                       К       оборот

                                                                                   B5 

                                                          П                                                    B10                                                     

                                                                                  H3                                           B15       H4

                                                                                                         B6                    

                                                                                                                                                        B16                        B17

                                   У              B1 

                                                                                                                            Е4

                                                       H2                 B4

хромсодер-                                                                                                                                                       B29              B30 B31           B32В33           В34

жащи e               Ф                                                                                                                                                                 

сточные                                                                                                    на утилизацию

воды                                                                                                           в кожевенную                                         Е11               Е12              Е13                                

          Р     H1                                                                            промышленность

                                                                Е1                                                    

                                          на сжигание  в котельную                                                                                                            на утилизацию                                                 

                                Хром (III)             1.90 %                            7.60 %      

                                Никель                  0.17 %                            0.68 %

 . 

                                Цинк                      1.04  %                           4.16 %

                                Медь                       0.29 %                            1.16 %

                                Железо                   0.51 %                             2.04 %

                                Кальций,             21.09 %                            84.36 %           

                               кремний и др.

                               Влажность           75.00 %                                0 %