Thesis - faculty.ait.ac.th - Asian Institute of Technology
Thesis - faculty.ait.ac.th - Asian Institute of Technology
Thesis - faculty.ait.ac.th - Asian Institute of Technology
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3.1 Introduction<br />
Chapter 3<br />
Me<strong>th</strong>odology<br />
The present study on landfill le<strong>ac</strong>hate treatment comprises <strong>of</strong> four experimental<br />
stages, namely: toxicity study, ammonia stripping, membrane biore<strong>ac</strong>tor study and sludge<br />
char<strong>ac</strong>terization. The different experimental stages <strong>of</strong> <strong>th</strong>is study are shown in <strong>th</strong>e Figure<br />
3.1.<br />
MBR process<br />
HRT Sludge char<strong>ac</strong>teristics<br />
Figure 3.1 Flowchart Showing Different Stages <strong>of</strong> Experimental Study<br />
3.2 Le<strong>ac</strong>hate Char<strong>ac</strong>terization<br />
Acclimatized yeast and<br />
b<strong>ac</strong>teria sludges<br />
Toxicity study<br />
Ammonia stripping<br />
study<br />
Membrane biore<strong>ac</strong>tor<br />
study<br />
MWCO<br />
The le<strong>ac</strong>hate used for <strong>th</strong>e treatment was obtained from Pa<strong>th</strong>um<strong>th</strong>ani Landfill Site and<br />
Ram-Indra Transfer Station, which were initially char<strong>ac</strong>terized. After char<strong>ac</strong>terization<br />
<strong>th</strong>ese le<strong>ac</strong>hates were mixed in an appropriate proportion to simulate a medium-aged<br />
le<strong>ac</strong>hate composition. The char<strong>ac</strong>teristic <strong>of</strong> <strong>th</strong>e simulated le<strong>ac</strong>hate used for <strong>th</strong>e study is<br />
shown in Table 3.1.<br />
54<br />
Ammonia nitrogen<br />
Lead<br />
pH<br />
Gradient velocity<br />
Cont<strong>ac</strong>t time<br />
Coupling ammonia stripping<br />
wi<strong>th</strong> MBR process<br />
Sludge char<strong>ac</strong>teristics<br />
MWCO