- Page 1: ANALYSIS OF A PILOT-SCALE ANAEROBIC
- Page 7 and 8: iii ACKNOWLEDGEMENTS I would like t
- Page 9: ANALYSIS OF A PILOT-SCALE ANAEROBIC
- Page 12 and 13: 2.4.2 Septic tank and soak-away sys
- Page 14 and 15: 6.5.2 Results of biochemical modell
- Page 16 and 17: Table 6.1: Mass balance determinati
- Page 18 and 19: Figure 3.5: Orthographic projection
- Page 20 and 21: Figure 5.22: Median pH values for i
- Page 22 and 23: xviii
- Page 24 and 25: VFA Volatile fatty acids WRC Water
- Page 26 and 27: million toilets was required in the
- Page 28 and 29: • From an environmental life cycl
- Page 30 and 31: • It is widely reported that divi
- Page 32 and 33: Appendices A1 to A6 provide additio
- Page 34 and 35: 2.1.1 Sub-processes within anaerobi
- Page 36 and 37: therefore approximately 10% of amin
- Page 38 and 39: • Liquid-solid processes (i.e., p
- Page 40 and 41: Table 2.1: Typical values of cell g
- Page 42 and 43: The values of pHUL and pHLL differ
- Page 44 and 45: acids produced by digestion, CO2, i
- Page 46 and 47: considers the thermodynamic favoura
- Page 48 and 49: The UASB has a number of significan
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concluded that the pseudoplastic 1
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different. However, the length of t
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Table 2.3 Effluent characteristics
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Zeeman and Lettinga (1999) indicate
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2.5 THE ANAEROBIC BAFFLED REACTOR T
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with increasing hydraulic retention
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A total solids mass balance was und
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Experiments to investigate the effe
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wastewater. Six different influent
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2.5.2.1 Tenjo, Colombia Two 5-compa
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eactor design. The CFD study indica
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"AAs you know, , you go to wwar wit
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esulted in more even flow distribut
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additional equipment used in the pi
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3.2.1.1 ABR Inlet and outlet sample
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3.2.3.3 Volatile Fatty Acids Two me
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periods. This problem was reduced s
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significant proportion of dye efflu
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4.2.2 Hydraulic and organic loading
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Inflow: Total Solids [g TS/ℓ] Out
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A net increase in free and saline a
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compartments. Therefore, as start-u
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Compartments 4 to 8 only developed
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These measurements have been used t
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sampling and measurement (Sötemann
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Alkalinity [mgCaCO3/ℓ] Alkalinity
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• Investigation into COD removal
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Table 4.3: Phase I: Summary of infl
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Figure 5.1 Installation of the ABR
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.5 .5 Aug02 Figure 5.4: Phase II: I
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5.3 FEED CHARACTERISTICS AND LOADIN
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that may be undertaken in a number
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Phase II: COD [mg/ℓ] Phase III: C
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alkalinity, and consequently low pH
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samples (Paired two-sample Student
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Due to the large number of samples
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Thus pilot-scale ABR inflow COD con
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Thus for a particular flow rate, th
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Settled sludge bed % of comp. 100 8
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efore this, there were two incident
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iodegradable particulates at the ra
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5.6.2 pH value and soluble COD conc
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Figure 5.23 shows the mean soluble
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eactor had essentially recovered, a
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• fluorescent in situ hybridisati
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In Phase III, the pilot-scale ABR w
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morphology suggested that they may
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Significant removal of pathogen ind
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126
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6 DISCUSSION: IMPLICATIONS FOR DESI
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Nevertheless, Section 6.4 provides
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lanket consisting of smaller granul
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small granules or ungranulated slud
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6.1.3 Pathogen removal and effluent
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Batch desludging Batch desludging F
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Table 6.1: Mass balance determinati
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anaerobic digestion of the organic
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In this analysis it can be seen tha
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The original steady-state model des
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A filter for converting feed SBCOD
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amounts of free and saline ammonia,
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Wastewater composition affects the
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Key: COD-bearing component Micro-or
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6.6.1 Design objective In engineeri
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where the required HRT and number o
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Development of an effective sludge
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employed to increase if the inflow
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7 CONCLUSIONS AND RECOMMENDATIONS "
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compartment 1 and 2, the increase w
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Nevertheless, it is concluded that
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It is proposed that a system should
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173 REFERENCES Aiyuk S., Amoake J.,
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Danckwerts P. V. (1953). Continuous
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Kato M. T., Field J. A. and Letting
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Nauman E. B. and Collinge C. N. (19
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Tiwari M. K., Guha S., Harendranath
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SOUTH AFRICAN DISCHARGE STANDARDS 1
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2 SAMPLE STORAGE AND PREPARATION Wh
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4 STATISTICAL METHODS This section
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The equation of the regression is g
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4.9 Rank Sum Test Two means may be
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Table A3. 1: Table of Responsibilit
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Ranked COD values [mgCOD/ℓ] Ranke
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3 PHASE II-IV: OPERATION OF PILOT-S
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Measurements of coliphages in the i
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1 RATIONALE Figure 5.12 and Figure
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Figure A4. 3 shows the significance
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2 SLUDGE AGE IN AN ACCUMULATING SYS
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Figure A5. 1: Example of SRT vs. le
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211 APPENDIX A6 DETERMINATION OF OU
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213 Eq. A6- 1 • Instead of calcul
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where D is the electron equivalence
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Carbohydrate: C10H18O9 fraction = i
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PUBLICATIONS ARISING FROM THIS PROJ
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Foxon, K.M. Brouckaert, C.J. Remigi