Sg. Selangor Phase 3 Water Supply Scheme

Semangar Water Supply Scheme

Bayan Baru Sewage Treatment Plant

Pulau Indah Sewage Treatment Plant

List of Major Projects

Bayan Baru Sewage Treatment Plant          download the .pdf file

This project (BBSTW), referred to as the Works comprises two stages where Stage 1 involves construction, testing and commissioning of a sewage treatment plant, while Stage 2 involves the operation and maintenance of the completed plants. The Works is designed to handle incoming raw sewage loading of 200,000 population equivalent (P.E.).

The Works facilities and treatment process are categorised into the following sections or plants: -

Primary Treatment

This is the first stage of treatment, where it is intended to remove large suspended solids in the sewage.

• Main Inlet Pumping Station
  1. Main inlet channel with equal flow distribution to coarse screening facilities.
  2. Raw sewage pumping station.

• Preliminary Treatment
  1. Headwork inlet channel with equal flow distribution to fine screening facilities.
  2. Grit removal system with grit classifying facilities.
  3. Grease removal system.

Secondary Treatment

This stage is also known as biological treatment. Biological treatment consists of application of a controlled natural process in which microorganisms remove soluble and colloidal organic material from the waste and are, in turn, removed themselves.

1. Activated sludge treatment in modified oxidation ditch (MOD) tanks.
2. Final clarification in clarifiers.

Sludge Treatment and Disposal

Sludge generated from the treatment plant must be treated prior to disposal. There are three main sources of sludge in BBSTW plant i.e. surplus activated sludge (SAS) from biological treatment, clarifier scum and sludge collected from external areas disposed via the Integrated Sludge Treatment (IST) Outloading Facility System. These sludge are collected in the SAS/IST Storage Tanks.

1. Sludge Thickening
2. Sludge Dewatering
3. Sludge Disposal

The scope of work for this project: -

1. To design, configure and programming the necessary graphics and Man-Machine-Interface (MMI) to the satisfaction of the client.
   - Graphic pictorials based on the process flow diagram and electrical single line diagram.
   - Trend displays each comprising of each analogue signals.
   - Guidance messages.
   - Alarm list.
   - Binary status list.
   
2. To supply and install the Programmable Logic Controller (PLC), personal computers, printers, modem, system communication cabling, hub and etc. To supply and install field control cabling from the field control panels to the CitectSCADA system panels. To terminate the control cables in the field control panel and system cabinets after carrying out loop check.
   
3. To carry out testing and comissioning of the complete CitectSCADA system to the satisfaction of the client.