Internship in Nestlé - 27-28th Dec 2016 (8am - 5pm)

Tuesday, 27^th Dec 2016 (8am - 5pm)

At 8.15 a.m., I received an email from Tee with the attached file of the Maintenance Plan after being checked by him. He wanted me to update and complete the remaining parts. He also attached the Portable Document Format (PDF) of the P&ID of reverse osmosis (RO) and chlorine dioxide generation and dosing system for my own reference.

At 9.15 a.m., we had a daily review meeting with the operators.

At 10.15 a.m., I observed and recorded the information on the remaining equipment at the DPRS site. Currently, three projects are carried on now in WWTP, which are the installation of a new DAF, DPRS and sludge dewatering system.

Online TOC (Total Organic Carbon) Analyser (taken at the same day)

At 1.30 p.m., I read the book CePIETSO (Biological Processes) and studied the working concepts of the performance monitoring of common biological treatment processes. The definitions and formulae of water parameters are clearly explained, such as biochemical oxygen demand (BOD), chemical oxygen demand (COD), sludge volume index (SVI), mixed liquor suspended solids (MLSS), etc.

At 3.40 p.m., I went to WWTP again to observe the DPRS process.

Wednesday, 28^th Dec 2016 (8am - 5pm)

At 9.15 a.m., we had a meeting with the operators. The WWTP operator had reported that an oil layer was observed at the balance tank recently.

At 10.00 a.m., I went to the DPRS as usual and recorded the information of the remaining equipment which is available. The task of updating the Maintenance Plan file is ongoing once I collected the data from the DPRS site.

At 1.45 p.m., I read the book CePIETSO (Biological Processes) to learn the examples of calculation of water parameters for the performance monitoring of common biological treatment processes, such as BOD, COD, SVI, MLSS, etc.

At 3.00 p.m., I conducted pipeline tracing in the DPRS site with the aid of P&ID on hands and observed the existing WWTP. I have to be familiar with the detail and location of each equipment in DPRS for the preparation of commissioning in the future.