http://www.engineeringnews.co.za
R/€ = 16.82 Change: 0.00
R/$ = 14.30 Change: 0.00
Au 1208.22 $/oz Change: 0.00
Pt 836.99 $/oz Change: 0.00
 

Sewage and Effluent

Environmental systems for the metal-finishing industries

1st April 2005 All manufacturing operations using chemicals and water for its production processes have a responsibility to ensure that the ensuing waste water is treated and meets with the compliance limits laid down by their regulatory bodies, VJL Technologies’ MD Johan Vermeulen says. 

Company wins tender for six nitrate analysers

1st April 2005 The performance of a demo-nitrate analyser installed at Driefontein Wastewater Works, one of six hi-tech wastewater treatment facilities operated by Johannesburg Water, has resulted in Endress & Hauser winning a tender for six units. 

Report outlines plan to tackle sanitation, water challenges

1st April 2005 A report launched by the United Nations (UN) Millennium Project Task Force on Water and Sanitation presents an operational plan for halving, by 2015, the proportion of people without sustainable access to safe drinking water and basic sanitation 

New product improves oil/water separation

By: abdul cook     5th November 2004 Point-source runoff and nonpoint-source storm-water runoff from industrial areas contains significant loads of sediment and oil. 

Funding key to beating water and sanitation backlogs

By: Irma Venter     1st October 2004 The current level of investment of R2,3-billion provided in the Municipal Infrastructure Grant (MIG) allows for seven years to completely clear the backlog on water supply, and nine years to do the same with the backlog on providing basic sanitation – which is three years behind the... 

Sewer rehabilitation using modern methods

By: Karel Smrcka     20th August 2004 Last week’s column was concerned with non-disruptive repair of metropolitan sewage infrastructure and a ‘pipe within a pipe‘ method in which a thermoset-impregnated fabric or felt tube is introduced into an existing sewer, the resin then being cured in situ as a composite. In... 

Nondisruptive repair of deteriorating sewers

By: Karel Smrcka     13th August 2004 Most metropolitan sewage infrastructures are now between one and two centuries old and their brick, glazed clay, concrete and steel sewers are showing their age. 

Water Affairs' focus to fall on sanitation

5th May 2004 Newly-appointed Water Affairs and Forestry Minister Buyelwa Sonjica looks set to focus on the same targets her predecessor was aiming at before President Thabo Mbeki's new Cabinet was announced last week. 

Tanzanian water and sanitation contract awarded to local company

By: lauren rota     2nd April 2004 After three complex rounds of bidding that took six years to process, the Dar es Salaam Water and Sewerage Authority’s (Dawasa) water and sanitation schemes were leased on a ten-year contract to a joint venture. 

Rural pumping schemes installed in Botswana

By: lauren rota     2nd April 2004 A local pump supplier has secured contracts for more than fifty self-priming pumps in Botswana. 

Department of Health reduces outbreaks of water-borne diseases

By: lauren rota     2nd April 2004 In collaboration with the Department of Water Affairs and Forestry (Dwaf), the Department of Health (DoH) has developed a strategy, and assembled national and provincial outbreak-response teams, to respond to epidemics of water-borne diseases including cholera and typhoid, and water-related... 

Industry is to accept increasing responsibility for the environment

By: lauren rota     2nd April 2004 The soon-to-be-amended National Environmental Management Act (Nema), Act 107 0f 1998, presents legislative changes that could have drastic consequences for industrial non-compliers.? 

Ekurhuleni water-treatment plant capacity to be upgraded to 150 Ml a day

By: lauren rota     2nd April 2004 An upgrade to the Waterval wastewater-care works in Klip River will provide additional capacity to service southern Ekurhuleni.? 

New sewage-grinder pump range released

2nd April 2004 Following years of development work, a global pump manufacturer has launched its new line of submersible sewage grinder pumps on the local market. ? 

European partnership supplies local wastewater treatment facility

2nd April 2004 A partnership between Hansen Transmissions International (HTI) and Netherlands-based company, Landustrie, has proved lucrative on numerous occasions.? 

Award for commitment to cleaner environment

2nd April 2004 ?The Nampak Flexible Origination centre, which manufactures gravure cylinders for Nampak Flexible, has won an award for its industrial-effluent disposal. ? 

Local ozone generators supplied to Greece, Italy and Bahrain

By: lauren rota     2nd April 2004 With a yearly international growth rate of 40%, ozone-based water-treatment methods are threatening to overthrow chlorination as a preferred multipurpose water-treatment system. ? 

SA could move from a water-stressed to a water-scarce category

By: lauren rota     2nd April 2004 South Africa’s current drought is more intense than the preceeding decade’s droughts in 1993 and 1995, yet no water-consumption restrictions have been implemented because the raw-water-storage supply in the Lesotho Highlands Project is seen as adequate. 

Township gets outfall sewer

By: lauren rota     2nd April 2004 In November last year, Park Haven township in Kempton Park was given an infrastructure boost through the award of a contract for the installation of an outfall sewer and a bulk-connection water pipe.? 

Design tips for trickling filters

2nd April 2004 “The minimum wetting rate (MWR) of trickling filter (TF) media cannot be stressed enough,” Terbo Plastic CEO Harry Botha says.? 

Alternative pump is suggested

By: lauren rota     2nd April 2004 South African sewage-treatment systems typically make use of centrifugal and progressive-cavity pumps, which suffer from problems relating to the solid-laden effluent and the presence of stringy material. 

Viable low-cost sanitation alternatives identified

By: lauren rota     2nd April 2004 The contentious issue of the levels of sanitation service provided to low-income and informal settlements, and the arrangements for implementing such projects have been a focus of numerous research efforts by the Water Research Commission (WRC). 

Catalytic converter for organic water pollutants

2nd April 2004 An innovative catalytic converter for factories – based on ultrasound that virtually eliminates organic waste from polluted water – could be available to a range of industries before the end of the decade. 

New-era water works opens on East Rand

By: Zonika Botha     12th December 2003 The first wastewater treatment works in South Africa to produce treated water to the new 2010 water quality standards, and also the first to operate on the new water licensing system, was officially opened by Water Affairs and Forestry MInister Ronnie Kasrils last week. 

Digital data from the underground

By: Karel Smrcka     26th September 2003 Cities’ ageing sewage pipe networks should ideally be regularly surveyed for cracks and weaknesses, but traditional inspections based on closed-circuit television (CCTV) images can be unreliable and inaccurate, since they depend on the subjective interpretation of video images of video... 

New tanker fleet to tackle Joburg’s sewers

12th September 2003 Sewer and sanitation service provider for the city of Johannesburg, Johannesburg Water, experiences some 3 000 sewer blockages a month throughout the 9 200 km sewer network that it manages. 

Sanitation struggle continues

By: Zonika Botha     1st September 2003 It is something that most people take for granted, yet worldwide there are a staggering 2,4-billion people who do not have access to adequate sanitation. 

Wastewater membrane means no more money down the drain

By: Karel Smrcka     29th August 2003 The constituents of some effluents can also be valuable and, if not properly treated, wastewater can literally throw money down the drain. 

Sanitation struggle continues

By: Zonika Botha     29th August 2003 It is something that most people take for granted, yet worldwide there are a staggering 2,4-billion people who do not have access to adequate sanitation. 

SA-made waste-gas burners available soon

4th April 2003 Local furnace company, Safurnco, is soon to supply locally manufactured waste gas burners for sewage works. 

Pump maker expands stock

4th April 2003 Pumps manufacturer Salmson Pumps South Africa has extended its stock of specialist pumps to handle a wider variety of light- to heavy-duty sewage and effluent disposal work. 

Municipalities should consider dry sanitation, says NGO

By: Marius Roodt     4th April 2003 The three largest municipalities around the country, Johannesburg, Cape Town and Durban are increasingly realising that waterborne sewage is no longer the ideal ways to dispose of human waste in the short-term, reports Mvula Trust technical specialist Richard Holden. 

R40m relief sewer soon to be constructed in Johannesburg

By: Marius Roodt     4th April 2003 The utility Johannesburg Water is set to construct a R40-million relief sewer for the city. 

Developments planned around the Jukskei river in Alexandra cleanup

By: Marius Roodt     4th April 2003 The Jukskei river is being cleaned up as part of a larger Alexandra cleanup scheme, reports convenor of engineering services at the Alexandra Renewal Project Rodney Nay. 

Alternative to gravity sewage system suggested

By: Marius Roodt     4th April 2003 A new sewage system developed by a German company may solve problems of water use and wastage in Africa. 

Drives on offer for sewage-treatment applications

4th April 2003 The gear products division Bearing Man, Power Drives, reports that it has a range of drives available, designed specially for sewage treatment applications. 

Gold and silver oxygen sensor developed

4th April 2003 It has been said that it is the dream of any technician working on a high-accuracy plant, such as wastewater, to have instruments that are still accurate after ten years of operation. 

Local and international company form new venture

4th April 2003 It often takes the outbreak of disease such as cholera to draw attention to the inadequacy of water and sanitation systems in a country. 

RSS Feed

About

Engineering News is a product of Creamer Media.
www.creamermedia.co.za

Other Creamer Media Products include:
Mining Weekly
Research Channel Africa
Polity

Read more

Subscriptions

We offer a variety of subscriptions to our Magazine, Website, PDF Reports and our photo library.

Subscriptions are available via the Creamer Media Store.

View store

Advertise

Advertising on Engineering News is an effective way to build and consolidate a company's profile among clients and prospective clients. Email advertising@creamermedia.co.za

View options
Subscribe Now for $119
Free daily email newsletter Register Now
Subscribe Now for $119 Close