At 9.15 a.m., as usual, we had a meeting with the operators.
At 10.00 a.m., Tee asked me about my progress in preparing the Maintenance Plan and said that he would check it this afternoon. Then I read the book CePIETSO (Biological Processes) which contains information about water treatment. This book consists of many modules and formulae for calculating water parameters.
At 2.00 p.m., Jaclyn told me that she had received the P&ID of the sludge dewatering system. This system is under installation now. She shared this P&ID and briefly explained the process of sludge dewatering to me. I took this opportunity to study sludge management in the industrial sector.
At 2.30 p.m., Jaclyn and I went to the DPRS site to observe and study the process flow again with the aid of P&ID while looking around the existing WWTP. We realized several alterations during the installation of instruments and differences with the arrangement as shown in P&ID.
At 3.30 p.m., we noticed that water was turbid at the second final discharge point. We also realized that there was a sludge overflow at the second clarifier. We quickly opened the valve fully to allow the sediment sludge to flow out from the clarifier for a certain time. Eventually water flow at all final discharge points were clear.
At 4.45 p.m., I emailed the Maintenance Plan to Tee and Jaclyn
for checking.
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