by Ng Sai Leung. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1990. / Bibliography: leaves [172]-[182] / ABSTRACT --- p.iii / ACKNOWLEDGEMENTS --- p.V / TABLE OF CONTENT --- p.vii / LIST OF FIGURES --- p.xii / LIST OF TABLES --- p.xiv / LIST OF PLATES --- p.xvii / LIST OF APPENDICES --- p.xviii / CHAPTER --- p.Page / Chapter I --- INTRODUCTION --- p.1 / Chapter 1.1 --- Background --- p.1 / Chapter 1.2 --- Objectives --- p.3 / Chapter 1.3 --- Significance --- p.3 / Chapter 1.4 --- Literature review --- p.5 / Chapter 1.5 --- Scope and approach of the study --- p.8 / Chapter II --- METHODOLOGY --- p.11 / Chapter 2.1 --- Conceptualization --- p.11 / Chapter 2.2 --- Soil characteristics / Chapter 2.2.1 --- Site selection --- p.12 / Chapter 2.2.2 --- Descriptions of soils for investigation --- p.15 / Chapter 2.3 --- Preliminary percolation test and soil preparation --- p.24 / Chapter 2.4 --- Column design --- p.25 / Chapter 2.5 --- Routine operation --- p.28 / Chapter 2.6 --- Sampling procedure --- p.29 / Chapter 2.7 --- Time schedule of the experiment --- p.30 / Chapter III --- ANALYTICAL METHODS --- p.31 / Chapter 3.1 --- Soil characteristics --- p.31 / Chapter 3.2 --- Soil leachate --- p.37 / Chapter 3.3 --- Continuous monitoring of the column system --- p.42 / Chapter 3.4 --- Manipulation and analysis of data --- p.43 / Chapter 3.5 --- Remarks --- p.44 / Chapter IV --- INITIAL STATE OF THE SYSTEM --- p.45 / Chapter 4.1 --- Slurry characteristics --- p.45 / Chapter 4.2 --- Soil matrix --- p.47 / Chapter 4.3 --- Blank soil leachate --- p.50 / Chapter 4.5 --- Summary --- p.51 / Chapter V --- HYDRAULIC PERFORMANCE OF THE COLUMNS --- p.53 / Chapter 5.1 --- Hydraulic considerations of disposal design --- p.53 / Chapter 5.1.1 --- Soil clogging phenomenon --- p.54 / Chapter 5.1.2 --- Significance of soil clogging --- p.55 / Chapter 5.2 --- Morphology of clogging layer --- p.55 / Chapter 5.3 --- Infiltration regimes of the columns --- p.59 / Chapter 5.3.1 --- Kostiakov infiltration model --- p.59 / Chapter 5.3.2 --- Factors affecting infiltration regimes --- p.63 / Chapter 5.4 --- Practical recommendations --- p.65 / Chapter 5.4.1 --- Recommended dosage rate --- p.65 / Chapter 5.4.2 --- Time of failure --- p.66 / Chapter 5.4.3 --- Recovery of the system --- p.67 / Chapter 5.5 --- Summary --- p.68 / Chapter VI --- PURIFICATION EFFICIENCY OF THE SYSTEM --- p.70 / Chapter 6.1 --- PH --- p.70 / Chapter 6.2 --- Specific conductivity --- p.71 / Chapter 6.2.1 --- Ion movement pattern --- p.74 / Chapter 6.2.2 --- Ion movement mechanism --- p.77 / Chapter 6.3 --- E. coli --- p.78 / Chapter 6.3.1 --- E. coli removal pattern --- p.81 / Chapter 6.3.2 --- E. coli overview --- p.82 / Chapter 6.4 --- Carbon --- p.83 / Chapter 6.4.1 --- Carbon attenuation pattern --- p.84 / Chapter 6.4.2 --- Carbon transformation mechanisms --- p.93 / Chapter 6.5 --- Nitrogen --- p.95 / Chapter 6.5.1 --- Nitrogen attenuation --- p.96 / Chapter 6.5.2 --- Nitrogen transformation mechanisms --- p.103 / Chapter 6.6 --- Phosphorus --- p.106 / Chapter 6.7 --- Summary --- p.112 / Chapter VII --- CHEMICAL QUALITY OF SOIL LEACHATE --- p.113 / Chapter 7.1 --- Cluster analysis of leachate samples --- p.114 / Chapter 7.1.1 --- Clustering of soil leachate --- p.115 / Chapter 7.1.2 --- Implications --- p.118 / Chapter 7.2 --- Discriminant analysis of leachate samples --- p.119 / Chapter 7.2.1 --- Discriminant functions --- p.119 / Chapter 7.2.2 --- Scanning the misclassified samples --- p.123 / Chapter 7.3 --- Spatial and temporal changes of soil leachate --- p.124 / Chapter 7.5 --- Summary --- p.127 / Chapter VIII --- CONTROLLING FACTORS OF THE LEACHATE QUALITY --- p.128 / Chapter 8.1 --- Interrelationship of leachate chemical quality --- p.130 / Chapter 8.2 --- Analytical framework --- p.133 / Chapter 8.3 --- Evaluating the effect of system characteristics --- p.135 / Chapter 8.3.1 --- "Effects on ""degradation""" --- p.137 / Chapter 8.3.2 --- "Effects on ""soil retention""" --- p.138 / Chapter 8.3.3 --- "Effects on ""nitrification""" --- p.138 / Chapter 8.3.4 --- Overall effect --- p.139 / Chapter 8.4 --- Pattern of pollutant attenuation --- p.140 / Chapter 8.5 --- Relative performance of five soils and the effect of depth --- p.142 / Chapter 8.5.1 --- Relative purification efficiency of each soil --- p.143 / Chapter 8.5.2 --- The effect of soil depth on purification --- p.144 / Chapter 8.6 --- Evaluating the effect of slurry concentration --- p.146 / Chapter 8.7 --- Evaluating the effect of management practices --- p.148 / Chapter 8.7.1 --- Gravel washing --- p.148 / Chapter 8.7.2 --- Raking --- p.150 / Chapter 8.8 --- Summary --- p.151 / Chapter IX --- CHANGES OF SOIL CHEMICAL PROPERTIES --- p.153 / Chapter 9.1 --- Soil reaction pH --- p.153 / Chapter 9.2 --- Soil electrical conductivity (SEC) --- p.156 / Chapter 9.3 --- Soil total organic carbon (TOC) --- p.158 / Chapter 9.4 --- Soil total nitrogen (TN) --- p.158 / Chapter 9.5 --- Soil total phosphorus (TP) --- p.162 / Chapter 9.6 --- Summary --- p.162 / Chapter X --- CONCLUSION --- p.165 / Chapter 10.1 --- General review of the performance of the columns --- p.165 / Chapter 10.2 --- Purification pathways and contaminant attenuation --- p.166 / Chapter 10.3 --- Factors affecting the purification --- p.167 / Chapter 10.4 --- Impacts of slurry application on the soil properties --- p.168 / Chapter 10.5 --- Practicability of soakaway and recommendations --- p.168 / Chapter 10.6 --- Suggestion and discussion --- p.169 / Chapter 10.6.1 --- Experimental design --- p.169 / Chapter 10.6.2 --- Operational improvement --- p.170 / Chapter 10.6.3 --- Statistical considerations --- p.171 / BIBLIOGRAPHY / APPENDICES
| Identifer | oai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_318587 |
| Date | January 1990 |
| Contributors | Ng, Sai Leung., Chinese University of Hong Kong Graduate School. Division of Geography. |
| Publisher | Division of Geography, Graduate School, Chinese University of Hong Kong |
| Source Sets | The Chinese University of Hong Kong |
| Language | English |
| Detected Language | English |
| Type | Text, bibliography |
| Format | print, xviii, 171, [28] leaves : ill. ; 30 cm. |
| Coverage | China, Hong Kong, China, Hong Kong, China, Hong Kong |
| Rights | Use of this resource is governed by the terms and conditions of the Creative Commons “Attribution-NonCommercial-NoDerivatives 4.0 International” License (http://creativecommons.org/licenses/by-nc-nd/4.0/) |
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