Water quality control at ship locks
Subtitle: prevention of salt- and fresh water exchange
By: J. Kerstma ... [et al.].
Contributors: Kerstma, J.
Publisher: A.A. Balkema
Published: 1994
Place of publication: Rotterdam; Brookfield, VT
Language: eng
Number of pages: 92
Subjects: Locks (Hydraulic engineering); Water quality management; Saltwater encroachment
Description: xi, 92 p. : 26 cm
Notes: Bibliography: p. 91-92.
Table of contents: title: Machine generated contents note: 1 INTRODUCTION; title: 1.1 General; title: 1.2 Listing of interest groups in water management; title: 1.3 Prevention of salinisation in the Netherlands; title: 2 MANAGEMENT OF A BASIN RELATED TO THE PROBLEM; title: OF SALINE INTRUSION; title: 2.1 Comparison of the situation in an estuary before and after closure; title: 2.2 Quality control of a fresh-water bay: Prevention of salt intrusion; title: 2.3 Ship locks as a source of salt intrusion; title: 2.4 Salt-content distribution over the basin; title: 3 OVERVIEW OF POSSIBLE MEASURES TO REDUCE SALT-; title: FRESH WATER EXCHANGE AT SHIP LOCKS; title: 4 FURTHER ANALYSIS OF MEASURES REDUCING SALT-FRESH; title: WATER EXCHANGE WITH SYSTEMS ALLOWING THE GATES; title: TO BE OPENED IMMEDIATELY AFTER LEVELLING; title: 4.1 Analysis of the reference situation without special measures; title: 4.1.1 The various stages of operation; title: 4.1.2 General considerations of salt penetration; title: 4.2 Measures for management; title: 4.3 Flushing the basin to prevent salt intrusion; title: 4.4 Pumping back the salt water lockage prism; title: 4.5 Soonest possible closure of gates in combination with an air curtain; title: V; title: 4.6 System Tereuzen (flushing back salt penetration directly and; title: indirectly); title: 4.7 Comparison of the various systems that enable the gates to be; title: opened immediately after levelling; title: 5 FURTHER ANALYSIS OF SALT-FRESH WATER SEPARATION; title: SYSTEMS THAT INTERCHANGE THE CHAMBER'S VOLUME; title: BEFORE GATES ARE OPENED; title: 5.1 System Dunkerque/Kreekrak/Krammer; title: 5.2 System Hansweert; title: 5.3 The system 'salt lift trough'; title: 5.4 Comparison of the various systems which interchange the; title: chamber volume with closed gates; title: 6 MANAGEMENT OF SALT-FRESH WATER; title: SEPARATION SYSTEMS; title: 7 EFFECTIVITY OF ALL SALT-FRESH SEPARATION SYSTEMS; title: COMPARED WITH STANDARDS FOR WATER QUALITY; title: 7.1 Theoretical approach; title: 7.2 Practical approach; title: 8 CONCLUDING OBSERVATIONS; title: APPENDIX A: Total salt-fresh water interchange per lock operation cycle; title: when rate of local interchange, 0, is known; title: APPENDIX B: Theoretical approach of the air quantity needed for an air; title: curtain as a salt-fresh separation system; title: APPENDIX C: Calculation of the maximum force athwartships in salt; title: water, with a fresh water bubble situated on one side; title: APPENDIX D: Minimum discharge requirement to prevent salt water; title: intrusion in a wall slot; title: BIBLIOGRAPHY.