Water & Environment – Buro Tech Consulting Engineers

Rietvlei WCW (SCADA)
This water treatment project comprised of pumping stations, chemical dosing, filters and reservoirs. Services Provided: 11 kV Switch gear Transformers Cabling Miniature-substations Area lighting Control and instrumentation: PLC’s SCADA Systems Flow meters and other instrumentation

Nandoni WCW Switch Gear
This 60 Mega-litre per day water treatment project comprised of dam wall, pumping stations, chemical dosing, filters and reservoirs. Services Provided: 22 kV and 11 kV Switch gear Transformers MCC’s Cabling Miniature-substations Standby generators Area lighting Control and instrumentation: PLC’s SCADA Systems Flow meters and other instrumentation

Nandoni Dam
This dam is part of Nandoni water treatment. Services Provided: Cabling Miniature-substations Standby generators Lighting inside dam wall and on top of dam wall

Christiana Pump Station
This is a water supply pump station project for Dr. Ruth S Mompati District Municipality. The pump station consists of: 2 x 200 kW VSD pump sets 4 x 110 kW VSD pump sets MCC 1 x 800 kVA Standby Generator 2 x 800 kVA transformers MV Switch Gear Instrumentation

BMK Welverdiend Dam Pump Station
The Project comprised of a new De-watering Pump Station. The MV Equipment includes: 22kV Indoor MV Switch gear, two x 800kVA Indoor Transformers, and associated Extension of Overhead lines and cables. The LV Equipment includes: A 525V MCC for three 170 kW motors Soft Starter drives and auxiliaries for the pumps (two Duty, 1 Standby) at the Pump station, with: PLC, Power Factor Correction, Lighting Transformer, Power Quality Metering and Flow metering and Display, Lighting and small power, Earthing and Lightning Protection, as well as: Selected electronic Equipment related to Control and GSM/SCADA monitoring, Security alarms, beams and electric fences, Smoke detection system, Start-up Siren System Controls, Strobe Light and Audible Alarm The Project was successfully completed and within budget and time constraints.

Nandoni WCW High Lift Pump Station
This water treatment project comprised of dam wall, pumping stations, chemical dosing, filters and reservoirs. Services Provided: 22 kV and 11 kV Switch gear Transformers Cabling Miniature-substations Area lighting Control and instrumentation: PLC’s SCADA Systems Flow meters and other instrumentation

Rietvlei WCW Pump Station
This water treatment project comprised of pumping stations, chemical dosing, filters and reservoirs. Services Provided: 11 kV Switch gear Transformers MCC’s Cabling Miniature-substations Area lighting Control and instrumentation: PLC’s SCADA Systems Flow meters and other instrumentation

Rietvlei WCW (PLC)
This water treatment project comprised of pumping stations, chemical dosing, filters and reservoirs. Services Provided: 11 kV Switch gear Transformers Cabling Miniature-substations Area lighting Control and instrumentation PLC’s SCADA Systems Flow meters and other instrumentation

WORK EXPERIENCE RELATED TO WATER TYPE PROJECTS
The work experience of personnel of Buro Tech Consulting Engineer’s personnel related to Water type projects, only as from
2010, is listed below (prices escalated to current rates 2021):

YEAR	WATER TYPE PROJECTS			AMOUNT
2010	DWAF	Nandoni Dam Wall – Electrical Reticulation		R5,6m
2012	Gert Sibande DC	Amersfoot WCW & Pump Stations		R5,6m
2012	Blue Line	Zongesien Sewerage Works		R1,9m
2013	Mogalakwena Municipality	Tshamahansi Pump Station		R1,6m
2013	Jones & Wagener	Welverdiend Mine Dam Pump Station		R4,8m
2013	Jones & Wagener	Deep Far South Mine Pump Station		R3,1m
2014	Mogalakwena Municipality	Sekuruwe Pump Station		R1,6m
2014	Mogalakwena Municipality	Piet se Kop Pump Station		R4,8m
2015	DWAF	Nandoni Water Care Works		R61,6m
2015	SASOL/Jones & Wagener	Tweedraai Mine – Pump Stations & Plan		R11,3m
2015	South32/Jones & Wagener	BMK Mine Water Extension Project – Design		R22,6m
2015	South32/Jones & Wagener	Vandyksdrift Mine Water Project – Design		R75,8m
2016	De Beers/Jones & Wagener	Veneia 4 Mine Pump Stations – Design		R16,9m
2017	Sedibeng/Indraburo	Christiana Pump Station		R6,3m
2017	South32/Jones & Wagener	Roy Point Mine – Pump Stations – Design		R1,3m
2019	City of Tshwane/MDP	New Eersterust Sewage Pump Station	In Process	R3,5m
2019	City of Tshwane/MDP	Refilwe Sewage Pump Station	In Process	R3,3m
2020	Jones & Wagener	Ghana Obuasi Mine		R4,5m
2020	Vhembe District/Infraburo	Vondo Telemetry	In Process	R13,4m
2021	Jones & Wagener	Iduapriem Slurry Pumping System	In Process	R17,2m
2021	De Beers/Jones & Wagener	Venetia Mine ( Stormwater)	In Process	R20,5m
2021	Jones & Wagener/Glencore	Goedgevonden Mine Pump Station	In Process	R2,2m
2021	Lebalelo WUA	Havercroft Pump Station – VSD Report		R12,8m
2021	Lebalelo WUA	Spitskop & Dwarsrivier Pump Stations	In Process	R18,1m
2021	Lebalelo WUA	Clapham Pump Station Solar PV & Battery Storage		R12,5m

ELECTRICAL AND ELECTRONIC

1.1 Specialized Electrical and Electronic Expertise
The specialized experience and expertise as achieved with the completion of many dams, pumping stations,
water care works as well as water treatment works are applied. The company Buro Tech Consulting Engineers has
an intimate experience with the rather specialized control of water related and treatment plants. The specific
experience of personnel in electrical and electronic engineering can be summarized as follows:

50 Pump stations with largest capacity: 24m³/sec
10 Sewerage plants with largest capacity: 20 Meg liter/day
15 Water treatment works with largest capacity: 120 Meg liter/day
4 Dam walls for DWAF: Wolwedans, Inanda, Glen Mellville & Nandoni Dams

It is believed that the experience to date has earned Buro Tech Consulting Engineers the right to be a serious
contender as Electrical Consulting Engineers for the mentioned services. Buro Tech is also proud of the fact that
personnel employed in the Electrical Department of DWA & F forms part of their reference list..

1.2 Energy Effective Design
The electrical installation of every dam will be audited and re-designed where applicable for energy effectiveness
compliance with SANS 204. The optimization of energy consumption thus forms a very important criteria in any
design. The following fields are inter alia addressed:

1.2.1 Selection of Motor/Pump set Combinations – If Applicable
The most efficient pump set combination is selected and running costs are capitalized over a period. Incentives
and penalties are therefore applied as required by DWA & F to motivate suppliers of equipment to make the most
energy efficient selections of equipment.

1.2.2 Electricity Tariff
The existing electricity tariffs will be studied to ensure that the most suitable and lowest tariff is applied by the
electricity provider.

1.2.3 Power Factor Correction – If Applicable
The power factor of all plants is corrected to the most economical factor as required by the electricity tariff. Central
or individual correction studies are performed.

1.2.4 Variable Speed Drives (VSD’s) – If Applicable
The application of VSD drives is considered where required for water demand control or process flow
requirements. The cost savings can be significant.

1.3 Process Control, Instrumentation and Automation
The latest technology and best fit for purpose control and automatization philosophies are considered and applied
during the design stage of any project. Final selections are performed in collaboration with the client.

1.4 Electrical Distribution
A proper analysis is carried out for power planning, evaluation and reporting purposes. Multi-level voltage systems
are modeled, load flow analysis, comprehensive fault level studies, voltage and transient motor as well
protection studies are performed

The Following computer aided software design programs are applied:

ReticMaster for voltage depression and load flow studies.

The supply authority is consulted to determine the least depressions of voltages on the supply network as well as
to determine the best voltage and substation configurations.

1.5 General Electrical
The electrical designs and layouts will be carried out according to the directives of the Client should it be available.
The Standard specification of the Client will be applied as well as the other documentation as required by the
Client’s Electrical Division. Co-ordination will also be done with other divisions such as the Mechanical Division.

Lighting designs is performed with the application of the following software design programs:

Relux: Internal Lighting
SABS 098: Street Lighting