Options for reuse of nutrients from waste water in the Mekong Delta, Vietnam:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Bonn
Inst. für Nutzpflanzenwiss. und Ressourcenschutz
2010
|
| Schriftenreihe: | Bonner agrikulturchemische Reihe
42 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | XVI, 163 S. Ill., graph. Darst., Kt. |
| ISBN: | 3937941223 |
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Datensatz im Suchindex
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| adam_text | Titel: Options for reuse of nutrients from waste water in the Mekong Delta, Vietnam
Autor: Arnold, Ute
Jahr: 2010
Content
List of Tables.......................................................................................................................IX
Abbreviations and Technical Terms..................................................................................XIV
1. Introduction...................................................................................................................1
1.1. Motivation..................................................................................................................1
1.2. Workflow...................................................................................................................3
2. Status Quo in the Mekong Delta and in Vietnam...........................................................4
2.1. Political, Sociological and Economic Frame.....................................................................4
2.2. Water Sources and Supply...........................................................................................5
2.2.1 Groundwater Use in the Mekong Delta...................................................................6
2.2.2 Surface Water Use in the Mekong Delta..................................................................6
2.2.3 Rain Water Use in the Mekong Delta......................................................................8
2.3. Sanitation, Waste and Waste Water Treatment..............................................................9
2.3.1 Sanitation...........................................................................................................9
2.3.2 Solid Waste.......................................................................................................11
2.3.3 Waste Water.....................................................................................................12
2.4. Agriculture and Farming............................................................................................13
2.4.1 Land Use and Farming Systems in the Mekong Delta.............................................13
2.4.2 Natural Conditions.............................................................................................15
2.4.3 Fertiliser Use.....................................................................................................16
2.4.4 Expected Development.......................................................................................17
2.5. Conclusions Regarding the Status Quo in the Mekong Delta and Expected Development... 17
3. Required Systems........................................................................................................18
3.1. Nutrient Demand in Agriculture..................................................................................18
3.2. Nutrient Recycling Potential........................................................................................19
3.3. Water Treatment Systems..........................................................................................20
3.4. Demand for Wastewater Treatment Systems................................................................21
4. Anaerobic Treatment in Biogas Digesters....................................................................24
4.1. Background of Anaerobic Technology..........................................................................24
4.1.1 Process.............................................................................................................24
4.1.2 Common Techniques and History.........................................................................26
4.1.3 Development and Practice in Vietnam..................................................................29
4.1.4 Main Findings and Research Questions.................................................................31
4.2. Materia! and Methods................................................................................................32
4.2.1 Field examinations.............................................................................................32
4.2.1.1 Collaboration and Additional Data.....................................................................32
4.2.1.2 Chemical and Microbiological Analysis Methods..................................................33
4.2.1.3 Statistical Evaluation.......................................................................................33
4.3. Results and Discussion..............................................................................................34
4.3.1 Wastewater Characteristics.................................................................................34
4.3.1.1 Waste Water Types........................................................................................34
4.3.1.2 Composition of Water Sources.........................................................................36
4.3.2 Management of Biogas Digesters and Process Parameters......................................37
V
4.3.2.1 Management..................................................................................................37
4.3.2.2 Hydraulic Retention Time................................................................................38
4.3.2.3 Loading Rate.................................................................................................38
4.3.2.4 Process Parameters........................................................................................41
4.3.3 Wastewater Treatment Efficiency.........................................................................43
4.3.3.1 Suspended Solids and Turbidity.......................................................................43
4.3.3.2 Biological and Chemical Oxygen Demand..........................................................43
4.3.3.3 Microbiology..................................................................................................44
4.3.3.4 Summary and Recommendations for Process and Wastewater.............................46
4.3.4 Balance and Fluxes............................................................................................48
4.3.4.1 Pig Sty Balance..............................................................................................48
4.3.4.2 Water Balance for Biogas Digesters..................................................................48
4.3.4.3 Nutrient Fluxes in Biogas Digesters...................................................................49
4.3.5 Potential Use as Fertiliser....................................................................................50
4.3.5.1 Effluent.........................................................................................................50
4.3.5.2 Sludge..........................................................................................................55
4.3.6 Economic Aspects..............................................................................................56
4.3.6.1 Business Economics........................................................................................56
4.3.6.2 Further Effects and National Economics............................................................57
4.4. Conclusions..............................................................................................................57
5. Waste Water Ponds......................................................................................................59
5.1. Introduction.............................................................................................................59
5.1.1 Process.............................................................................................................59
5.1.2 History and Common Techniques.........................................................................59
5.1.3 Practice in the Mekong Delta...............................................................................60
5.1.4 Research Questions............................................................................................60
5.2. Materia! and Methods................................................................................................60
5.3. Resu/ts and Discussion..............................................................................................61
5.3.1 Field Parameters................................................................................................61
5.3.2 Biological and Chemical Oxygen Demand..............................................................62
5.3.3 Microbiology......................................................................................................62
5.3.4 Nitrogen...........................................................................................................63
5.3.5 Reuse of Pond Water and Sludge for Agriculture and Aquaculture...........................63
5.3.5.1 Reuse of Water..............................................................................................63
5.3.5.2 Reuse of Pond Sludge.....................................................................................64
5.4. Conclusions..............................................................................................................64
6. Composting of Biogas Sludge.......................................................................................65
6.1. Introduction.............................................................................................................65
6.1.1 Process.............................................................................................................65
6.1.2 History and Common Techniques.........................................................................67
6.1.3 Development and Practice in Vietnam..................................................................70
6.1.4 Summary and Research Questions.......................................................................72
6.2. Material and Methods................................................................................................72
6.2.1 Set-up..............................................................................................................72
6.2.3 Measurements...................................................................................................73
6.3. Resu/ts and Discussion..............................................................................................74
6.3.1 Management and Process Parameters..................................................................74
6.3.1.1 Observations.................................................................................................74
6.3.1.2 Temperature..................................................................................................75
6.3.1.3 Moisture........................................................................................................76
6.3.1.4 Mass Balance.................................................................................................77
6.3.2 Fertiliser Quality................................................................................................78
VI
6.3.2.1 Carbon and Nitrogen......................................................................................78
6.3.2.2 Hygienic Parameters.......................................................................................79
6.3.2.3 Heavy Metals.................................................................................................81
6.3.2.4 Maturity and Plant Acceptance.........................................................................82
6.3.2.5 Field Application.............................................................................................84
6.4. Conclusions and Outlook............................................................................................85
6.4.1 General.............................................................................................................85
6.4.2 Process and Experimental Set-up.........................................................................85
6.4.3 Application and implementation in the Mekong Delta.............................................86
7. Vermicomposting.........................................................................................................87
7.1. Introduction.............................................................................................................87
7.1.1 Process.............................................................................................................87
7.1.2 Common Techniques and History.........................................................................89
7.1.3 Vermicomposting in Vietnam...............................................................................90
7.1.4 Summary and Research Questions.......................................................................90
7.2. Materia!andMethods................................................................................................91
7.2.1 Set-up..............................................................................................................91
7.2.2 Measurements...................................................................................................92
7.3. Results and Discussion..............................................................................................93
7.3.1 Management and Process Parameters..................................................................93
7.3.2 Mass Development.............................................................................................94
7.3.3 Nutrients...........................................................................................................96
7.3.4 Hazardous Substances........................................................................................99
7.3.4.1 Hygienic Parameters.......................................................................................99
7.3.4.2 Anorganic Salts and Heavy Metals...................................................................101
7.3.5 Maturity and Plant Acceptance...........................................................................102
7.4. Conclusions and Outlook...........................................................................................103
7.4.1 Treatment Process and Experimental Set-up........................................................103
7.4.2 Application of Vermicompost in Agriculture..........................................................104
7.4.3 Value of Produced Worms..................................................................................105
7.4.4 Evaluation and Comparision to Composting..........................................................105
8. Source Separation and Urine Storage........................................................................106
8.1. Introduction............................................................................................................106
8.1.1 Principle, History and Common Techniques..........................................................107
8.1.2 Source Separation in Vietnam and in the Mekong Delta.........................................108
8.1.3 Research Questions...........................................................................................109
8.1.4 Collaboration data.............................................................................................109
8.2. Setting-up a Source Separation System......................................................................110
8.2.1 Planning and Construction of Drain and Treatment...............................................110
8.2.2 Results Regarding Construction and Installation...................................................112
8.2.3 Conclusions on Construction and Implementation.................................................112
8.3. Nutrient Fluxes in the Source Separation System.........................................................113
8.3.1 Material and Methods........................................................................................113
8.3.2 Results and Discussion......................................................................................114
8.3.2.1 Discharged Volumes......................................................................................114
8.3.2.2 Nutrient Concentrations.................................................................................114
8.3.2.3 Heavy Metal Concentrations...........................................................................116
8.3.2.4 Fluxes of Nutrients and Heavy Metals..............................................................117
8.3.2.5 Hygienic Parameters......................................................................................118
8.3.2.6 Sociological Findings......................................................................................119
8.3.3 Summary and Conclusions.................................................................................120
VII
8.4. Treatment of the Yellow Water Fraction by Storage.....................................................121
8.4.1 Material and Methods........................................................................................122
8.4.2 Results and Discussion......................................................................................122
8.4.2.1 Observations and Field Parameters..................................................................122
8.4.2.2 Nutrients......................................................................................................123
8.4.2.3 Anorganic Hazardous Substances....................................................................126
8.4.2.4 Hygienic Parameters......................................................................................126
8.4.2.5 Organic Pollutants.........................................................................................128
8.4.3 Summary and Conclusions Urine Treatment.........................................................129
8.5. Conclusions and Outlook for Separation and Reuse......................................................129
8.5.1 Source Separation Systems................................................................................129
8.5.2 Treatment of Separated Urine............................................................................130
8.5.3 Use of Urine and its Derviates in Agriculture........................................................130
9. Evaluation of Suitable Treatment Systems................................................................133
9.1. Introduction............................................................................................................133
9.2. Proceeding..............................................................................................................134
9.2.1 System Borders and Criteria Definition................................................................134
9.2.2 Compared Systems...........................................................................................135
9.2.3 System Evaluation and Database Creation...........................................................135
9.2.4 Creating Selection Tool......................................................................................135
9.3. Results and Discussion.............................................................................................136
9.3.1 Wastewater Types............................................................................................136
9.3.2 Demands of Sites and Crops..............................................................................136
9.3.3 Evaluation of Tested Treatment Technologies......................................................137
9.3.4 Black/Brown Water Treatment............................................................................138
9.3.5 Yellow Water Treatment....................................................................................141
9.3.6 Treatment and Recycling Systems......................................................................142
9.4. Conclusions and Outlook...........................................................................................143
10. Literature................................................................................................................144
VIII
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| spelling | Arnold, Ute Verfasser aut Options for reuse of nutrients from waste water in the Mekong Delta, Vietnam Ute Arnold Bonn Inst. für Nutzpflanzenwiss. und Ressourcenschutz 2010 XVI, 163 S. Ill., graph. Darst., Kt. txt rdacontent n rdamedia nc rdacarrier Bonner agrikulturchemische Reihe 42 Zugl.: Bonn, Univ., Diss., 2010 Landwirtschaft (DE-588)4034402-2 gnd rswk-swf Abwasserverwertung (DE-588)4154103-0 gnd rswk-swf Abwasserreinigung (DE-588)4000313-9 gnd rswk-swf Kleinstbetrieb (DE-588)4138253-5 gnd rswk-swf Biogasanlage (DE-588)4006798-1 gnd rswk-swf Mekongdelta (DE-588)4376820-9 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Mekongdelta (DE-588)4376820-9 g Abwasserreinigung (DE-588)4000313-9 s Abwasserverwertung (DE-588)4154103-0 s Landwirtschaft (DE-588)4034402-2 s Biogasanlage (DE-588)4006798-1 s Kleinstbetrieb (DE-588)4138253-5 s DE-604 Bonner agrikulturchemische Reihe 42 (DE-604)BV012402920 42 HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=022465777&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
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| title | Options for reuse of nutrients from waste water in the Mekong Delta, Vietnam |
| title_auth | Options for reuse of nutrients from waste water in the Mekong Delta, Vietnam |
| title_exact_search | Options for reuse of nutrients from waste water in the Mekong Delta, Vietnam |
| title_full | Options for reuse of nutrients from waste water in the Mekong Delta, Vietnam Ute Arnold |
| title_fullStr | Options for reuse of nutrients from waste water in the Mekong Delta, Vietnam Ute Arnold |
| title_full_unstemmed | Options for reuse of nutrients from waste water in the Mekong Delta, Vietnam Ute Arnold |
| title_short | Options for reuse of nutrients from waste water in the Mekong Delta, Vietnam |
| title_sort | options for reuse of nutrients from waste water in the mekong delta vietnam |
| topic | Landwirtschaft (DE-588)4034402-2 gnd Abwasserverwertung (DE-588)4154103-0 gnd Abwasserreinigung (DE-588)4000313-9 gnd Kleinstbetrieb (DE-588)4138253-5 gnd Biogasanlage (DE-588)4006798-1 gnd |
| topic_facet | Landwirtschaft Abwasserverwertung Abwasserreinigung Kleinstbetrieb Biogasanlage Mekongdelta Hochschulschrift |
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