Water Journal : Water Journal August 2012
new products & services 94 AUGUST 2012 water water business ongoing maintenance of key assets like the national pipeline network and marine terminals. Based in Loganholme, near Brisbane, Queensland, Anode Engineering is under the management of two of the country's most experienced cathodic protection specialists: Wayne Burns and Allan Sterling. Under their guidance the company develops and implements engineered solutions that balance technical demands with practicality. Through its extensive agency network the company also brings the products of well-known and respected brands to Australian industry." HIGH-PERFORMANCE ROTARY DRUM SCREENS Lackeby high-efficiency Roto-Sieve rotary drum screens will separate solid particles and fibres from liquids down to 0.6mm and Lackeby will guarantee 100% separation above perforation size. Roto- Sieve drum screens are based on proven technology with a self-cleaning function that delivers good results and minimises maintenance with high operational reliability. They will provide a long service life with low energy consumption. Due to the innovative design of Roto- Sieve's internal feed system and the circular perforations in the screen, it has been shown in practice that a fibre or hair has a very small chance of orienting itself at the right angle and against the water current to pass through a round hole compared to a slotted screen used by traditional rotary screen manufacturers. Because of this feature, the Roto-Sieve rotary screen offers exceptionally high separation efficiency. Roto-Sieve rotary drum screens are available in five models for flows rates up to 435 litres per second and are supplied in either stainless steel (1.4301) or acid-proof steel (1.4436) materials. Standard drum perforations are 0.8, 1.0, 1.5, 2.0, 2.5 mm and the smallest perforation available is 0.6 mm. The drum screens can be supplied with removable splash-guards in stainless steel or glass-fibre reinforced plastic and the drum brushes are manufactured in polypropylene/nylon materials. There are a number of reports and papers published extolling the advantages of the Roto-Sieve filter perforated drum screen as pre-treatment ahead of MBR process plants, including no seals, integral overflow, self-cleaning, competitively priced, reliable operation for guaranteed continuity, and high rate of capture of the small chain toilet paper fibres -- which tend to spin in the pre-aeration zone, generating threads that grow into long strands that wrap around the hollow fibre membranes and cause too frequent backwash, which weakens the structure of the hollow fibre membrane to the point that it breaks. The Roto-Sieve filter screen has validated its excellent performance in preventing this problem and is recognised as the best available solution. The horizontal design of the rotary drum makes it ideal for handling rags, grit and stones which are transported out of the screen by the internal auger built inside the drum, compared with internal-fed double band screens which have at least six vertical side seals through which the small chain fibres escape, and which have limited ability to handle rags and stones and do not have an integral overflow to return excess flow back to the upstream of the process train and not downstream, which allows the fibres to enter the MBR process. Double flow band screens used ahead of MBRs are always installed after the grit trap, compared with the Roto-Sieve filter perforated rotary drum screen which is installed ahead of the grit system. The double flow screens, therefore, require installation of an additional screening step ahead of the grit trap, which is obviously not required with the Roto-Sieve filter screen. Lackeby Products has recently been awarded a contract to supply Roto-Sieve drum screens to the QingHe wastewater treatment plant in Beijing, China. The QingHe plant (3,000,000 PE) will become the largest MBR plant in the world when it is completed, with a capacity of 240,000 m3/d. A total of 19 Roto-Sieve drum screens are being supplied via Purac China to provide 1mm screening protection for the MBR plant in order to reduce operational maintenance and extend service life. Of the 4,000 plus Roto-Sieve Drum Screens supplied by Lackeby to date, there are more than 100 units in operation worldwide protecting MBR plants, including 50 units in France Memcor Microfiltration Plant for Sale by Tender Barwon Water Corporation has a decommissioned Memcor microfiltration skid available for sale. Until last year the plant was used to filter potable water for the township of Meredith in central Victoria. Changes to the configuration of the regions water supply system has meant the filtration unit is no longer required. Filtration capacity is approx. 30 litres/second (net). For enquiries please contact Dene Denny: firstname.lastname@example.org or Mobile: 0417595410 Allan Sterling and Wayne Burns with the certificate -- an important milestone in the development of Anode Engineering.
Water Journal September 2012-1
Water Journal July 2012