Monday, June 11 2012
Royal Cape Golf Club Irrigation
The Royal Cape Golf Club (RCGC) experienced water shortages during years with below average rainfall, which led to a deterioration in the course condition. Various alternatives for augmenting the irrigation resources have been considered over the years, but a suitable solution had never been implemented.
Thursday, May 31 2012
L’Ormarins Water Treatment Plant
Monday, May 14 2012
Ekango Salt Dust Extraction System
The salt field operation at Walvis Bay, Namibia, was established in 1964 and is one of the largest solar evaporation facilities in Africa, producing 730,000 tonnes of salt per annum. (more…)
Sunday, April 29 2012
Volatile Organic Vapour Condenser
Thursday, March 29 2012
Perdeberg Winery Water Treatment Plant
Perdeberg Winery appointed A2V to design and supply a water treatment plant to treat water from the winery’s storage dam to SANS 0241: Class 1 for drinking water.
The dam water comprises mainly water from the Berg River Irrigation Scheme and is supplemented with rainwater and borehole water during the wetter winter months.
A2V proposed a system comprising the following key elements:
• coagulent dosing (Ultrafloc U3800)and settlement to remove the majority of suspended particuates (turbidity), dissolved organic carbon (DOC) and color.
• alkalinity adjustment to reduce the treated water’s corrosive potential.
• sand filtration
• carbon filtration to remove any remaining DOC and odors
• disinfection by chlorine dioxide
Chlorine dioxide was recommended for disinfection over other disinfectants for a number of reasons:
• No formation of chlorinated byproducts as a result of disinfection and no free chlorine, chlorate or chlorite residuals in the treated water.
• Current literature reports that chlorine dioxide does not produce any chlorophenols – the precursor to TCA (trichloroanisole) formation.
• Effective for the control of biofilm as there is no resistance building from microorganisms
• No pH limitations on disinfection capability.
• Its disinfectant (sterilisation) capabilities are not diminished at all in the presence of fats, oils, proteins, body fluids etc. because it has very selective and very few chemical reactions.
• It is highly soluble in water, therefore, it has a long-lasting residual which reduces the potential for cross infection or re-contamination.
• It is a broad spectrum, fast acting disinfectant, effective against a wide range of bacteria, spores, fungi, and viruses at relatively low concentrations and short contact period.
• It is colorless, has a mild medicinal odour, low corrosivity to metals and the lowest acute toxicity rating from the EPA.
• High efficacy against E.coli, salmonella, listeria, aspergillus, penicillium, staphylococcus etc.
• The generator and dosing equiment are reliable and easy to maintain.
The plant was designed to supply 20 m3/hour of treated water with sufficient storage capacity to meet the cellar’s peak water demand of 500m3/day during the harvest season.
The plant was commissioned in August 2011, 7 weeks after the order was placed!
Thursday, April 29 2004
Water Regenerable Carbon
This patented non-impregnated catalytic carbon was designed specifically for odour control in wastewater applications where the main pollutants are hydrogen sulphide and mercaptans. It is unique in that it has a high capacity for sulphide removal without the need for chemical impregnants. (more…)