INFLUENCE OF SETTLING TIME AND SUBSTRATE VARIATION IN AEROBIC GRANULAR FORMATION USING SEQUENCING BATCH REACTOR
Biogranular is a microbial aggregation which is formed by selfimmobilization of microorganisms. There are many advantages that can be obtained by using biogranular as a biological wastewater treatment compared to coventional techology using activated sludge. It has good settling ability, high bi...
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| Format: | Theses |
| Language: | Indonesia |
| Subjects: | |
| Online Access: | https://digilib.itb.ac.id/gdl/view/32091 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Biogranular is a microbial aggregation which is formed by selfimmobilization
of microorganisms. There are many advantages that can be
obtained by using biogranular as a biological wastewater treatment compared to
coventional techology using activated sludge. It has good settling ability, high
biomass retention time, and withstand high organic pollutant. The aim of this
study is to form aerobic granule with variation of settling time. Settling time is
one of selection pressure which is very important to form aerobic granular.
Therefore, this study is conducted with variation of the settling time (5,10 and 15
minutes). SBR cycle time is 8 hours. Finally, it will be analyzed to determine the
optimum condition to form a good aerobic granular. Parameters that will be
measured in this research is settling velocity, density, SVI, granule morfology,
diameter, and extracelullar polymeric substances. It is known that the optimum
condition is using a settling time of 5 minutes in both of gluocse and acetate
susbtrate. Granular characteristics formed using settling time of 5 minutes has
SVI value of 311.51 m g and 179.69 ml/g; settling velocity of 8.65 m/h and 19.37
m/h; density of 8.49 g/L and 6.89 g/L; diameter of 2.35 mm and 2.75 mm; and
aspect ratios aerobic granule of 0.56 and 0.63. |
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