Bulk Water Provision
manages raw water
Mhlathuze Water manages raw water sources, designs, optimises, installs, extends, operates, and maintains the required infrastructure to meet the bulk water services requirements and related services to customers.
The raw water to the Nsezi Water Treatment Works (NWTW) is sourced between the Mhlathuze River and Lake Nsezi water quality of the two sources.
The NWTW water purification process consists of the following process stages:
Chlorine gas is injected to the raw water for disinfection purposes.
Suspended solids are mechanically removed from the water as sludge after the addition coagulants.
A flocculant is further dosed and water is mixed and different rates to flocculate the remaining suspended solids in the clarified water.
Water is injected with air saturated water in order to stimulate the floatation of the suspended solids which are then removed from the top surface of the dissolved floatation air units (DAF).
Final water is filtered through rapid gravity sand filters.
Chlorine gas is injected to the purified water for final disinfection.
Bulk Water Waste Disposal
Mhlathuze Water owns and
operates the biggest offshore
wastewater disposal system in
Two pipelines extending four and five kilometres out to sea transfer wastewater from the industries in Richards Bay and its environs, sludge removed during the treatment process at the Nsezi Water Treatment Plant and macerated sewage from the uMhlathuze Municipality.
The main wastewater disposal licence issued to Mhlathuze Water by the Department of Water Affairs and Forestry in November 2002, makes Mhlathuze Water accountable to the department for quality and quantity standards.
Agreements have been signed with all the organisation’s customers who contribute bulk wastewater for disposal through the offshore pipeline. The wastewater agreements are subjected to conditions relating to quality, sampling and monitoring which are imposed on Mhlathuze Water by the Department of Water Affairs. Strict controls are exercised to ensure that contributors do not transgress these conditions.
Off shore monitoring of the pipeline has been done since 1984 by an external research institution CSIR and the latest report (No. 21) indicated that there has been no severe impact on the offshore environment. Mhlathuze Water is well established and prepared to meet its commitments to water supply and disposal of waste water to meet the future demands of the area.
Laboratory has been in
existence since 1984.
It was established primarily to support the organisation to fulfil its mandate of providing water services to the region by monitoring raw and treated water from the waterworks (Nsezi) and effluent from contributors into the offshore effluent disposal scheme.
Over a period of time the services were extended to include commercial analysis to a range of external customers, from government agencies to private individuals. The achievement of ISO/IEC 17025 accreditation in 2002 further entrenched MW’s status as the laboratory services facility of choice in the region.
The scope of tests covers inorganic (metallic, non-metallic & physico-chemical), organic and microbiological and biological constituents in water. We assist our clients to meet statutory (SANS 241 and General Standards for wastewater) and other operational requirements.
A substantial Capex investment has been made over the last several years to ensure that the facility is adequately resourced to cover a significant scope of analyses required. The range of equipment includes ICP Spectrometers (3), ICP Mass Spectrometers (2), Ion Chromatrographs (3), and a GC Mass Spectrometer.
The mission of Scientific Services at Mhlathuze Water:
Laboratory Services provides ISO 17025 accredited services in chemical and microbiology fields. We view ourselves as partners with industry and aim to become a nationally recognized testing laboratory.
We aim to expand our services beyond water into other fields and growing our business to achieve annual profitability within the next 5 years.