CT4471 Drinking water Water treatment technology
September2007 prof.ir.J.C.vanDijk
Sanitary Engineering Department
Drinking water
Water treatment technology
prof. ir. J.C. van Dijk
Delft University of Technology
Further information about this and other publications can be obtained at:Delft University of TechnologyFaculty of Civil Engineering,Section of Sanitary Engineering,Stevinweg 12628 CN Delft tel: +31-15-2785440fax: +31-15-2787966
English translation and editing: Adele Sanders, Delft EdiTS
© TU Delft 2007
preface
Contents
Water treatment schemes 11
Coagulation and flocculation 37
Sedimentation 51
Flotation 67
Filtration 81
Adsorption 103
Disinfection 115
Aeration and gas stripping 133
Softening 153
Micro- and ultrafiltration 173
Nanofiltration and reverse osmosis 189
Laboratory experiments 203
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Detailed contents
Water treatment schemes 11
Framework, contents, study goals 121. Introduction 132. Groundwater 143. Riverbank groundwater 204. Surface water with direct treatment 22 225. Surface water with infiltration 30
Coagulation and flocculation 37
Framework, contents, study goals 381. Introduction 392. Coagulation 403. Flocculation 45
Sedimentation 51
Framework, contents, study goals 521. Introduction 532. Theory 533. Influeances on settling in a horizontal flow tank 584. Practice 625. Settling tank alternatives 64
Flotation 67
Framework, contents, study goals 681. Introduction 692. Principle 693. Theory 714. Practice 76
Filtration 81
Framework, contents, study goals 821. Introduction 832. Principles 833. Theory 874. Practice 91 5. Alternative applications of filtration 95
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Adsorption 103
Framework, contents, study goals 1041. Introduction 1052. Theory 1073. Practice 110Practice 110 110
Disinfection 115
Framework, contents, study goals 1161. Introduction 1172. Purpose of disinfection 1173. Disinfection kinetics 1254. Disinfection methods 129
Further reading 133
Aeration and gas stripping 135
Framework, contents, study goals 1361. Introduction 1372. Theory of gas transfer 1383. Practice 144
Softening 153
Framework, contents, study goals 1541. Introduction 1552. Principle 1552. Theory 1593. Practice 164
Micro- and ultrafiltration 173
Framework, contents, study goals 1741. Introduction 1752. Principle 1773. Theory 1794. Practice 1845. Operation 187
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Nanofiltration and reverse osmosis 189
Framework, contents, study goals 1901. Introduction 1912. Principle 1913. Theory 1934. Practice 198
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