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Environmental News

Profit from waste

By: System Author     28th May 1999 THROUGH well-focused product-development initiatives, Sasol has been able to convert waste products into profitable products. These include high-quality recarburiser and other special grades of coke produced from waste pitch and other residues. The coking technology was developed by the research... 

Danes reaffirm commitment to South Africa

By: System Author     30th April 1999 For the first time in the life of the Danish Co-operation for Environment and Development (Danced) its members have had the opportunity to view the activities it funded ‘in the field’ and assess the results of its initiatives in SA over the past five years. Over this period assistance... 

Robben Island facelift

By: System Author     16th April 1999 The now-infamous prison island that housed President Nelson Mandela and scores of other political prisoners, Robben Island, is to be the recipient of a R24-million facelift. Department of Public Works media liaison officer Zaid Nordien reports that this sum, for improvements to roads, sewerage... 

Sampler eliminates errors

By: System Author     9th April 1999 Historically, reliable sampling of liquids has been impeded by the human element in sampling procedures. The new Endress+Hauser precision sampler ASP 2000 solves this problem by automating the process, and providing precise sample-dosing as well as cooled-sample storage, and can be used on... 

New pure-oxygen treatment system for SA

By: System Author     9th April 1999 More stringent legislation and concern for the environment have increased the awareness in South Africa for improving industrial and municipal wastewater disposal. Companies are looking at new ways to improve existing operations, or apply advanced technologies to new processes. Air Products, a... 

20-year sludge-processing contract for Pta

By: System Author     9th April 1999 In line with government’s intention to finance capital projects through the private sector using build, operate, transfer/build and operate, own, transfer (Bot/Boot) techniques, the Greater Pretoria Metropolitan Council (GPMC) is in the process of finalising enquiries for a 20-year Boot... 

R17m Cape Town pipeline

By: System Author     9th April 1999 A 3 800 m sewer pipeline being laid in Cape Town’s northern suburb of Goodwood at present, which is due to be completed in July, will make an important contribution to Cape Town’s utility facilities. The R17-million tender to replace the existing 500 mm sewer line was issued by the... 

Firms flow together to offer turnkey service

By: System Author     9th April 1999 Asubsidiary of Bate- man Project Hol- dings, Bateman Water, is well-positioned to compete strongly in the water-treatment market in Southern Africa and abroad. Bateman Water was established when Bateman acquired Bateman Water Treatment (BWT) from Bateman Industrial Corporation, and merged its... 

Electro-osmosis filter

By: System Author     9th April 1999 The first order to supply an electro-osmosis (E-O) belt filter for a wastewater-treatment plant has been received by Steinm 

1964 gearboxes still going at wastewater works

By: System Author     9th April 1999 Four generations of Brook Hansen industrial gearboxes work seven days a week around the clock to assist with the purification of 35-million litres of water a day at the Baviaanspoort wastewater-purification works in Pretoria. Purification plants are notorious for the severe demands they make on... 

Campaign to minimise building waste

By: System Author     2nd April 1999 TEN waste-disposal and recycling sites are being established by the Construction Industry Research and Information Association (CIRIA) in the UK to demonstrate how 50-million tons of waste produced by builders each year can be minimised. In a determined campaign to show how environmental and... 

Johannesburg slashes its capex budget

By: System Author     26th March 1999 Johannesburg’s committed capital expenditure budget will be slashed to only R84-million next year and will fall further to R44-million in 2000–2001, city manager Ketso Gordhan tells Engineering News. However, Gordhan is hoping to direct an additional R200-million-to-R400-million... 

Benefits of flow measurement

By: System Author     26th March 1999 The extensive use of flow measurement in industrial processes has made it one of the most important tasks in modern-day instrumentation. “The growing sophistication of industrial technologies demands a proportionate increase in industrial measurement standards to guarantee factors such as... 

SA’s first waste-by-rail station opens

By: System Author     19th March 1999 South Africa’s first containerised waste-by-rail transfer and transport station has been officially opened in Knysna on the southern Cape coast. It is seen as a test case by many of the surrounding municipalities, such as Plettenberg Bay and George, which have all shown great interest in... 

Food waste turned into compost supply

By: System Author     12th March 1999 FOOD waste from canteens and restaurants is a large potential source of clean, odourless compost. New aerobic accelerators from Sweden, requiring a little electrical power and sawdust additive, are now available in user-operated units. The converters render a product that feels and smells like... 

Pipeline-residue recovery system

By: System Author     12th March 1999 DESIGNED to eliminate problems occurring in pipeline use – such as non-recovery of all the product, and the effluent created when this is discharged into drains – is the Magnasphere product-recovery system from Soliflo. Approved by Campden and Chorleywood Food Research Association,... 

R1-billion services concession granted

By: System Author     19th February 1999 SOUTH Africa’s first concession for the provision of water and wastewater services has been granted. In the presence of Provincial Affairs and Constitutional Development Minister Valli Moosa, the borough of the Dolphin coast formally granted a 30-year concession to a consortium led by Saur... 

Waste-gas management boosts recoveries

By: System Author     12th February 1999 A higher efficiency rate can be achieved in ore-recovery smelters with the correct control, cleaning and conditioning of waste gas, reveals Gas Handling Systems MD Chris Rowland. Although expensive, proper waste-gas management in metal-recovery plants can be justified as it could lead to an... 

Sanitation project hits funds snag

By: System Author     5th February 1999 A R64-million project to implement a waterborne sewerage system at Ivory Park in Midrand in 1994 could have been finished within a period of five years but, due to lack of funding, will only be 40% complete by June this year. The Khayalami Metropolitan Council (KMC) and Midrand Metropolitan Local... 

SA at the forefront of plastics recyling

By: System Author     5th February 1999 South Africa recycles some 13% or 114 000 t a year of all plastics consumed, placing it in the forefront of plastics recycling worldwide. Despite popular belief that plastics are the biggest culprit when it comes to waste, studies show that plastics account for only 8,7% in the waste-stream in... 

Curtain drain for waste site

By: Archivist     29th January 1999 A NEW curtain drain installed at the ten-year-old Holfontein hazardous-waste containment site outside Springs, in Gauteng, is working “very well”, reports Jones & Wagener spokesperson Jonathan Shamrock. “The 600-m-long drain is taking off about 300 l of water a minute from... 

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