Author: Danielle Petterson

Operational simplicity with UF membranes

Membrane technologies like ultrafiltration can ensure exceptional final water quality and, with the right company, an improved operational experience. By Herman Smit, managing director of Quality Filtration Systems   Most conventional water treatment systems require constant monitoring and daily operator decisions regarding plant operation. Ultrafiltration (UF) membrane processes offer a fully automated process that reduces operator involvement. With limited skilled operational staff available in South Africa, a more automated process offers many benefits. However, reduced operator involvement is not necessarily in conflict with the employment of labour. The improved skills required to operate UF plants provide an opportunity for the existing operators to improve their skill levels through training and studying, and treated volumes can be increased with the same number of operational staff. UF systems are ideal for new installations or for upgrades to existing filter systems or clarifiers, cutting operating costs and decreasing the plant footprint, while delivering exceptional value over the entire system life cycle. Instrumentation... Read More

Embracing UF technology

Ultrafiltration membrane systems provide the ability to treat poor-quality feedwaters and produce excellent final water quality. By Herman Smit, managing director of Quality Filtration Systems   Ultrafiltration (UF) systems are ideal for new installations or upgrades to existing filter systems or clarifiers, cutting operating costs and decreasing the plant footprint while delivering exceptional value over the entire system life cycle. The main benefit of UF is a fully automated process that reduces operator involvement. This eliminates the need for constant monitoring and decision-making, addressing South Africa’s skills shortage while providing the opportunity to upskill operators, as well as ensuring quality water output. Each module comprises thousands of membrane fibres with microscopic pores on the membrane surface, which reject particles greater than 0.04 μm. The experience of Quality Filtration Systems (QFS) in the implementation of membrane technologies in South Africa not only provides exceptional final water quality but an improved operational experience. However, it is important for clients to understand... Read More

BVi announces Level 1 B-BBEE status

BVi Consulting Engineers has been re-certified as B-BBEE Level 1 against the new amended Construction Sector Codes of Good Practice. As a 55% black-owned company, BVi is one of South Africa’s largest black-owned consulting engineering firms. Its shares are 100% owned by South African citizens, with more than 50% owned by professional engineers and technologists. As a proud Level 1 company, BVi has taken many transformational steps: Management BVi has restructured its management with the goal of obtaining a minimum of 50% black representation at management level, making BVi one of the few larger firms that is both black-owned and black-managed. Employment equity BVi’s workforce consists of more than 50% black employees. By applying a strict equity policy to the recruitment process, 70% of all new recruits over the last year were black. In time, this will further improve BVi’s equity ratios to reflect a fair representation at all levels. Skills development BVi runs an extensive mentor/ learnership programme... Read More

IMESA welcomes a new president

Last night Randeer Kasserchun was sworn in as the new president of the Institute of Municipal Engineering of Southern Africa (IMESA).  Kasserchun takes over from Gavin Clunnie who served as head of the organisation for the past two year. “It is with great pleasure and honour that I address you as the president of IMESA,” said Kasserchun addressing delegates upon his inauguration at the 2018 IMESA Conference. He thanked the IMESA exco and council for their confidence and trust in him to hold the position as president for the next two years. Engineering background Kasserchun currently serves as head of eThekwini Municipality’s Coastal Stormwater & Catchment Management Department and has been practicing in the field of hydrology and coastal engineering for the past 20 years. He graduated with a BSc. Civil Engineering from the University of KwaZulu-Natal (UKZN) in 1994. During 1995 and 1996 Kasserchun was involved in the Training and Development Programme and attended the School of Public... Read More

Unlock economic growth with trenchless technology

The 36th International No-Dig 2018 Conference and Exhibition Opens in Cape Town on 8 October and the Southern Africa Society for Trenchless Technology (SASTT) is inviting all interested parties to attend. The conference will be opened by the Executive Deputy Mayor of Cape Town, Alderman Ian Neilson, followed by a ground-breaking paper by Neil van Rooyen on the topic of “Unlocking economic growth in South Africa through the use of trenchless technology”. The industry’s role players and decision makers will unpack the various elements for expansion in the trenchless industry, detailing how this enables the creation of hundreds of new SMME contractors, immediate direct employment opportunities for 100 000 job entrants and cost savings worth billions of Rands. At the same time, trenchless offers cost saving solutions to repair South Africa’s leaking water and sewer pipes – a win-win situation for all. “Please come and join us for this vibrant discussion and help us improve the health and well-being of... Read More

Intelligent chemistry

Odour control has moved from an afterthought to a primary design consideration for most collection and treatment facilities. By Annejan Visser, process engineer at QFS   Intensive urbanisation, incremental population growth, and seasonal temperature rises within metropolitan areas have increased the likelihood of exposure to odour generating facilities. This, together with the additional need for corrosion control of waste pipelines and the health and safety of municipal personnel, has made odour control requirements more prevalent in recent times. Quality Filtration Systems (QFS) identified the local need for improved odour control measures at wastewater treatment plants and other odour generating sources, which led to the company concluding a technology partnership with Integrity Municipal Systems (IMS). Based in Poway, California, IMS is an odour-specific engineering company with over 20 years’ experience devoted to the design, manufacture and supply of innovative, preassembled odour solutions for the water and wastewater industry. Cost-effective vapour phase technologies available include: biofiltration – a biological technology with... Read More

Replicating the sun’s fusion energy

A spectacular vision is gradually becoming reality in Cadarache in the south of France. Modelled on the sun, the International Thermonuclear Experimental Reactor (ITER) fusion system uses nuclear fusion to generate energy in order to secure humanity’s supply of electricity. One of the biggest challenges is the high temperature inside the reactor. Technology by Sauer Compressors is a key factor in cooling the reactor: the manufacturer has supplied the world’s largest system for helium recovery. The ITER fusion reactor is an international consortium project involving the European Union, the United States, Russia, China, Japan, South Korea and India. The reactor is scheduled to be put into operation in 2020, with the aim of harnessing nuclear fusion – the sun’s source of energy – under terrestrial conditions as well. The hydrogen isotopes deuterium and tritium melt and form a plasma when exposed to immense heat. This process releases large quantities of energy. Researchers hope this will provide an infinite source... Read More

New ways commercial solar systems are changing the market

In the midst of fast-paced developing economies, energy markets are forced to make necessary adjustments in order to thrive. More sustainable and efficient technologies are being produced, opening the door to new alternative ways of producing energy. By Jabir Mohamed, Outreach Manager, NJ Solar Power Solar energy, along with wind and hydropower, stands out as one of the most promising and powerful alternatives. Sun energy promises to drive both industry and society away from the old-fashioned and highly toxic sources of energy, on which we are still heavily dependent. Here we are going to show the different ways in which solar energy is paving the way into a new world, with friendlier ways of producing energy that meet the population’s most basic necessities – the start of a technological revolution that generates energy with green resources. Costs are going down Due to technological advances, more businesses and residences are able to afford solar technology. This has made available the fabrication... Read More

Reuse with ultrafiltration

The growing issues of freshwater scarcity in many parts of the world are encouraging more wastewater reuse ideas, which all depend on effective filtration. The process of reusing water involves screening it to remove suspended solids, microbiological particles, inorganic salts and microorganics before disinfecting the by-product. Ultrafiltration (UF) has emerged as a more cost-effective water pretreatment solution to remove microbiological particles, as well as finer suspended solids prior to passing through reverse osmosis (RO) membranes, in the process preventing fouling. The UF process is also known for its ability to effectively remove viruses, bacteria and protozoa that could cause an immediate health risk. For more than two decades, Cape Town-based company Quality Filtration Systems (QFS) has trusted Memcor CPII UF technologies for pretreatment in RO, recently installing three wastewater reuse plants in South Africa – two in the Western Cape and one in KwaZulu-Natal. The Beaufort West facility in the Western Cape is a 2.3 MLD direct reclamation plant... Read More

How IoT is changing the wastewater industry

Water is perhaps one of the most precious natural resources. With rapid urbanisation, the resource is becoming scarce quickly. By Kelly Potter* For organisations and systems that operate in the water industry, there has been the dependency on Supervisory Control and Data Acquisition (SCADA) systems to monitor some parts of the water distributions systems, yet the practical limitation of its installation points has restricted its use. As stated in IoT and Hospitality, “The number of connected devices will grow by two billion objects in 2006 to a projected 200 billion by 2020.” With the growing number of connected devices, the water industry is taking advantage of IoT sensors to monitor water levels, chemical leaks, and even regulate water flows. IoT in water treatment uses the concept of smart sensors installed at various points in the water system. These sensors collect data and send it back to the monitoring systems. This data could include, water quality, temperature changes, pressure changes, water... Read More

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