Our journey started in Port Elizabeth.
We were sub-consultants to a reputable wastewater projects house. The scope of works was to fully refurbish one of three aeration basins, while fully upgrading the entire power and control system at NMBM WWTW.
Client
Wastewater Projects House for NMBM WWTW
Project Type
Fully refurbish an aeration basin, while fully upgrading the entire power and control system.
The Plant
The wastewater plant treats Summerstrand and local areas situated close the site. The 50ML/d plant will be receiving four new surface aerators, with a control system capable of remote monitoring
Basin Before
The basin under refurbishment took four new 37kW Landustry Aerator Units. These units were sized to properly aerate the raw effluent. Estimated NH3 levels entering the plant is 17 mg/l.
Basin After
Clearing debris and sludge out of the basin took approximately 4 weeks. The content of material was a mixture of cloth, plastics and organics.
Ducted Busbar
A new ducted busbar system was specified by us and installed by an approved busbar manufacturer. The unit was designed to 1.1A/sqrmm, making it more than capable of carrying 1200A @ 400VAC continuously.
Ducted Busbar in Substation
The encapsulated ducted busbar installed from the transformer room to the motor control center
Substation Preparation
We completed the substation design work. Civils took place shortly after the designs were completed.
Motor Control Centre
The motor contorl centre, equipped with 12 variable speed drives, DOL starters, feeders, PLC, HMI, DB and a fixed ACB.
Cable Management
All the cables have been tightly secured on the trays to each aerator set and closed off with tray covers afterwards.
Safety First
Each motor is equipped with an emergency stop button, field isolator and local start button. This makes for safe local isolation during maintenance.
Plant System Complete
The plant room was further equipped with technoswitch fire suppression/detection system (stat-x), epoxy coated flooring, proper lighting and steel doors.
PLC/HMI/SCADA
The PLC/HMI solution had a 3D look to it and developed by 3rd party engineers. The program functioned as intended with a simplistic user interface
Contact Us
Phone
(255) 352-6258