Improving the nitrogen removal in algal wastewater stabilization ponds:
Gespeichert in:
| 1. Verfasser: | |
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| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
2013
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| Schlagworte: | |
| Online-Zugang: | Volltext Inhaltsverzeichnis |
| Beschreibung: | 136, XXXIX S. graph. Darst. |
Internformat
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Datensatz im Suchindex
| _version_ | 1804152231254032384 |
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| adam_text | Table of content
Chapter I Introduction
1 Introduction and problem statement 1
2 Research objectives and approaches 4
2 1 General objective 4
2 2 Specific objectives 5
Chapter II Literature review of nitrogen removal from wastewater
1 Reasons for reducing nitrogen compounds in wastewater 7
1 1 Nitrogen cycle 7
1 2 Ammonia nitrogen impact on water bodies 8
1 3 Typical compositions of untreated domestic wastewater 9
2 Physical, chemical and biological effects on nitrogen removal 10
2 1 Physical and chemical processes 10
211 The oxygen dissolve and transfer 10
212 Temperature effects 12
213 Diffusion 14
214 Ammonia volatilization 14
215 Hydraulic flow pattern effects on nitrogen removal 16
2 2 Ammonia nitrogen removal from wastewater through biological processes 18
221 Nitrification and denitrification processes 19
222 Nitrogen fixation, assimilation and ammonification 24
3 Biological processes for removing ammonium nitrogen from wastewater 25
3 1 Conventional biological processes or technologies 25
3 2 New technologies for removing nitrogen from wastewater 28
3 3 Natural systems for removing nitrogen from wastewater 29
3 4 Comparison of removal efficiency of differents processes and technologies 31
4 Algal-bacteria involved in nutrient removal from domestic wastewater 32
4 1 Potentials of application of algal for wastewater treatment 32
4 2 Algal biological and ecological 34
4 3 Assimilation into algal and bacterial biomass 36
4 4 Physical and chemical effect on algae growth 37
Chapter III Research materials, analytical methods and experimental implementations
1 Research materials 47
2 Analytical methods 49
2 1 Oxygen concentration, pH media, and temperature in wastewater 49
l
2 2 Chemical Oxygen Demand (COD) 49
2 3 Ammonium nitrogen (NH4+-N), nitrate- nitrogen (NCV-N) 49
2 4 Total nitrogen (TN) and total organic carbon (TOC) 50
2 5 Biological oxygen demands measurement (BOD5) 51
2 6 Total Kjeldahl nitrogen (TKN) 51
2 7 Algal chlorophyll-a content determination 51
2 8 Validation of cuvettes test for dringking water analysis 53
3 Experiment implementations 53
3 1 Algal and duckweed experiments 53
3 2 Baffled algal reactors 56
Chapter IV Experimental results and discussions
1 Algal and duckweed experiments 60
1 1 Calculation methods 60
1 2 Operating conditions 61
1 3 Experimental results 61
131 COD 63
132 BOD5 65
133 Oxygen creation 68
134 Nitrogen removal 71
135 Nitrate nitrogen 75
136 Nitrification and denitrification efficiencies 77
137 Nitrogen balance in algal experiment 77
2 Baffled algal reactors 81
2 1 Operating conditions 81
2 2 Experiment results 82
221 COD 85
222 BOD5 87
223 Oxygen production 91
224 Ammonia nitrogen removal 93
225 Ammonia nitrogen removal efficicency 94
226 Oxygen effects to ammonium by different illumination phases 101
227 Light and temperature effect of algal growth 102
228 Nitrate nitrogen 105
229 The relationship between nitrate concentration and oxygen production 107
2 2 10 Total nitrogen Kjeldahl and its fractions 109
2 2 11 Nitrogen mass balance 110
2 3 Determination of Algal biomass and Chlorophyll-a content 114
231 Algal growth inhibition medium test 114
232 Determination the algal specific growth rate 115
Chapter V Conceptual modelling framework for interpreting ammonia nitrogen
removal via algal
1 Model-based design of ammonia nitrogen removal via algal biological processes 120
1 1 Basic information 120
ii
1 2 Activated Sludge model structure ASM1 contributed in algal model 121
121 COD components 121
122 Nitrogen components 122
2 Model building 122
2 1 Mass balance 123
2 2 Algal model formulation 123
221 Algal growth on nitrate 123
222 Algal growth on ammonia 124
223 Decay of algal 124
2 3 State variable 124
2 4 Model matrix 124
241 Dynamic Processes and Algal model formulations 124
242 Kinetic of biological processes 125
3 Modelling formulation 127
3 1 Fractions of wastewater influent and effluent characteristic could be used as the
input values 127
311 COD mass balance (fraction of Chemical Oxygen Demand) 127
312 Nitrogen mass balance 128
3 2 Metabolic model 129
3 3 Stoichiometric and kinetic parameters for the algal model 130
4 The limitations of algal- nitrogen modelling development incooperated with activated
sludge models ASM1 and ASM3 132
4 1 Parameters 132
4 2 Final remarks 132
Chapter VI Conclusions and recommendations
1 Conclusions 133
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| spelling | Ta, Hoa Binh Verfasser (DE-588)1051728045 aut Improving the nitrogen removal in algal wastewater stabilization ponds vorgelegt von Ta Hoa Binh 2013 136, XXXIX S. graph. Darst. txt rdacontent n rdamedia nc rdacarrier Berlin, Techn. Univ., Diss., 2013 (DE-588)4113937-9 Hochschulschrift gnd-content Erscheint auch als Online-Ausgabe urn:nbn:de:kobv:83-opus4-45465 https://nbn-resolving.org/urn:nbn:de:kobv:83-opus4-45465 Resolving-System kostenfrei Volltext HEBIS Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027329035&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Ta, Hoa Binh Improving the nitrogen removal in algal wastewater stabilization ponds |
| subject_GND | (DE-588)4113937-9 |
| title | Improving the nitrogen removal in algal wastewater stabilization ponds |
| title_auth | Improving the nitrogen removal in algal wastewater stabilization ponds |
| title_exact_search | Improving the nitrogen removal in algal wastewater stabilization ponds |
| title_full | Improving the nitrogen removal in algal wastewater stabilization ponds vorgelegt von Ta Hoa Binh |
| title_fullStr | Improving the nitrogen removal in algal wastewater stabilization ponds vorgelegt von Ta Hoa Binh |
| title_full_unstemmed | Improving the nitrogen removal in algal wastewater stabilization ponds vorgelegt von Ta Hoa Binh |
| title_short | Improving the nitrogen removal in algal wastewater stabilization ponds |
| title_sort | improving the nitrogen removal in algal wastewater stabilization ponds |
| topic_facet | Hochschulschrift |
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