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Sewage and Effluent

Ozone-based water purification

By: marisa rodrigues 5th April 2002 New environment-friendly technology for purifying water is now available in South Africa. →

Sustainability is key to sanitation

By: marisa rodrigues 5th April 2002 The real issue at the moment when it comes to providing sanitation is sustainability, maintains Mvula Trust technical specialist Richard Holden. →

Jhb gets its water act together

By: marisa rodrigues 5th April 2002 Residents and businesses of South Africa’s largest city, Johannesburg, can rest easier that their water and sanitation services are in good hands, following the successes of the city’s water utility Johannesburg Water (JW) during its first year of operation. →

Concrete shielded from sewage harm

By: marisa rodrigues 5th April 2002 Concrete, the major building material of sewage systems, is unavoidably affected by the stresses of being in contact with wastewater, therefore making protection essential. →

SA waste-to-wood-to-energy initiative

By: marisa rodrigues 5th April 2002 The concept of using trees to treat waste water and simultaneously using the waste water as a resource to grow productive plantations for renewable energy from biomass, is being investigated by the CSIR. →

Sewage: answer to acid mine water problem

By: marisa rodrigues 5th April 2002 In order to reduce the high salinity levels of acid mine drainage caused by the sulphate present in the acid water, an organic source can be added to supply energy to bacteria that are able to reverse reverse the chemical process that caused the acid water in the frst place, reducing the sulphate... →

Trenchless technology specs on the cards

By: marisa rodrigues 5th April 2002 Conducting sewage repairs on some of Johannesburg’s busiest roads can result in major disruptions. In such instances it makes more sense to use trenchless technology (TT) thereby not having to stop traffic to dig up the road, destroy 100-year-old trees or uplift paved entrances in the process. →

New technology neutralises acid mine water

By: marisa rodrigues 5th April 2002 The CSIR has patented a technology for the neutralisation of acid water using powdered limestone, or calcium carbonate. →

New sewage-pump supplier makes progress

5th April 2002 East Rand pump supplier Gresco South Africa is reporting significant progress following its establishment in the local market last year. →

R16-million desalination plant contract secured

5th April 2002 Competing against international contractors, Keyplan has secured the contract to construct a 12 000 m3 per day plant to desalinate effluent arising from Eskom’s Lethabo power station. →

Sewage plants for SA's remote regions

5th April 2002 With the new government White Paper on Sanitation forcing the various relevant authorities to look into the supply of good sanitation to all, the need for affordable and reliable sewage treatment has become more important than ever. →

Wastewater treatment specialist buys a sewage plant business

By: marisa rodrigues 5th April 2002 Specialist supplier of air, gas, fluid handling, combustion and environmental control systems, Howden Africa, has recently acquired the sewage plant business of Protecht Africa. →

Waste-management giant gets BEE partner

By: marisa rodrigues 5th April 2002 One of the biggest waste management companies on the African continent, Enviroserv Holdings, has entered into an agreement with black economic empowerment (Bee) company Lungisa, enabling the latter to acquire an equity interest in four of its divisions. →

Bugs clean paper mill's effluent

5th April 2002 The R600 000 pilot project at Sappi’s Tugela mill, in Kwazulu-Natal, which uses bugs to clean up its effluent, and aims at reducing the mill’s water consumption, is already providing excellent results. →

US knife-gate valves arrive in South Africa

By: Deborah Spicer 16th November 2001 A new range of knife-gate valves became available to the paper and pulp, mining, steel, sugar, automotive and sewerage and effluent industries two months ago. →

Flame traps for explosions

16th November 2001 Johannesburg firm Safurnco offers a range of locally-manufactured tank vents, flame arrestors, vacuum and pressure-relief valves as well as automatic shut-off valves, says marketing director Peter Thieme. →

Struggle for clean water far from over

By: Irma Venter 16th November 2001 The struggle for cleaner water in South Africa is far from over, but the Department of Water Affairs and Forestry (Dwaf) promises it has several programmes in place to deal with issues that made headlines in Engineering News earlier this year, in an article on the country’s national health... →

Rethink what we drink

10th August 2001 Occasionally a new standard can be a bitter pill, making us throw away old habits. →

SA firm wins Mauritius water contract

14th June 2001 South African company Set Point Turnkey Solutions (SPTS) is undertaking a R2,5-million contract for the water-treatment plant at La Marie in central Mauritius, part of the Marc Aux Vacoas water-supply project. →

Protection against pollution essential

By: System Author 10th November 2000 Environmental protection →