Page 10 - Membranes for Industrial Wastewater Recovery and Re-Use
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Contents  vii


           Chapter 4  System design aids
                     4.1   Computer-aided design for reverse osmosis plant   172
                           4.1.1   Introduction                              172
                           4.1.2   Key elements of the reverse osmosis process   172
                           4.1.3   RO design software                       176
                           4.1.4   Cost calculation                         182
                           4.1.5   Overview                                 183
                           References                                       186
                     4.2   Water pinch analysis                             186
                           4.2.1   Introduction                             186
                           4.2.2   Water pinch: the history                 187
                           4.2.3   Methodology                              187
                           4.2.4   Computed solutions                       191
                           4.2.5   Software tools currently available       197
                           4.2.6   Case study: water pinch and implementation
                                   of regeneration techniques               201
                           4.2.7   Conclusion                               209
                           References                                       209
                     4.3   Design examples                                  213
                           4.3.1   Problem in reverse osmosis: film theory and
                                   energy demand                            213
                           4.3.2   Problem in reverse osmosis: array design   216
                           4.3.3   Problem in reverse osmosis: CAD array design  217
                           4.3.4   Problem in electrodialysis: energy demand   220
                           4.3.5   Problem in submerged membrane filtration
                                   design                                   223

           Chapter 5   Case studies
                     5.1   Flag Fen high-purity water production plant (UK)   228
                           5.1.1   Background                               228
                           5.1.2   Description ofplant                      228
                           5.1.3   Performance                              2 30
                     5.2   Eraring Power Station: purification of secondary
                           sewage for boiler feedwater (Australia)          232
                           5.2.1   Background                               232
                           5.2.2   Description ofplant                      233
                            5.2.3   Performance                             235
                     5.3   Doswell combined cycle power plant: zero liquid
                           discharge (USA)                                  237
                           5.3.1   Background                               237
                           5.3.2   Description of system                    238
                            5.3.3   Performance                             2 40
                     5.4   VHP Ugchelen: paper mill water recycling
                           (Netherlands)                                    241
                           5.4.1   Background                               241
                            5.4.2   Description of system                   242
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