Реферат: Очистка хромсодержащих сточных вод гальванопроизводства

                                                                                          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

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