1. INTRODUCTION
2. MICROSCOPY
The Tool: MicroscopeAn ordinary light microscope consists of
The Objectives
Phase Contrast enables you to see internal structures.
Darkfield displays the background as black and the organisms white
Slide Preparation
Fixed Smears & Staining
Using the Microscope
Sample Collection
3. MICROBIOLOGY OF ACTIVATED SLUDGE
3.1. BacteriaGrowth Characteristics
Bacteria Growth Curve
Food: Microorganism Ratio
Factors Affecting Bacteria Growth
Oxygen Utilization
Sludge Age
Dissolved Oxygen
Mixing
pH
Temperature
Nutrients
3.2. Protozoa
Amoeba
Naked Amoebae
Testate amoebae - Arcella
Testate amoebae - Discoides
Flagellates
Ciliates
Free-swimming ciliate - Paramecium
Crawling ciliate - Aspidisca
Single stalked ciliates - Vorticella
Colonial stalked ciliate - Carchesium
Stentor
Vaginocola
Suctorian
Metazoa
Rotifers
Nematodes
Tartigrade (Water Bear)
4. PROCESS CONTROL
Dispersed Growth
Excessive dispersed bacteria
Very little dispersed bacteria
Protozoa Count
Slime Bulking
Toxicity
Bacteria Protozoa |
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