CIRCULAR CLARIFIER SYSTEMS

Transcription

1 CIRCULAR CLARIFIER SYSTEMS

2 Over 330 installa ons in 3 con nents With over 60 years of design and commissioning exper se, you can be assured that your Hydroflux Epco clarifier will perform consistently with a long service life. Hydroflux Epco clarifiers have been in opera on since the late 1960 s, in municipal water and wastewater treatment plants, industrial and mining applica ons.

3 Design Configurations The Hydroflux Epco clarifier range includes the following configura ons: Full and half bridge fixed Full and half bridge peripheral drive LogMax Log spiral scraper mechanisms VeeMax Chevron type fixed scrapers HeadMax Suc on headers

4 Key Features Robust construc on with heavy duty design Extensive design exper se with over 330 installa ons in 3 con nents Minimises denitrifica on flota on No scouring of sludge blanket Proven drive arrangement, for both centre drive and peripheral designs Reliable heavy duty scraper designs for all mechanical scraper and suc on systems Self cleaning FlocWell centre well design that promotes floccula on

5 45M Diameter Rotating Bridge Clarifier with LogMax

6 Applications Municipal Sewage Treatment Primary clarifica on Secondary clarifica on Ter ary clarifica on Municipal Water Treatment River water clarifica on Backwash water recovery Sludge thickening Lime so ening Seawater Desalina on Backwash water recovery Lime so ening Industrial and Mining Primary solids and precipitate removal Secondary clarifica on Ter ary clarifica on Raw water clarifica on

7 References Mt St John STP, Australia 3 x 45M Clarifiers LogMax sludge removal system Secondary clarifica on Launders Chute WTP, Australia 1 x 9M VeeMax Clarifier Potable water treatment Lime so ening ACC Beef, Australia 1 x 15M HeadMax Suc on Head Clarifier Secondary clarifica on industrial Subiaco STP, Australia 4 x 20M Secondary Clarifiers LogMax sludge removal system Secondary clarifica on with full CoverSweep covers

8 System components ❷ ❶ ❹ ❻ ❾ ❼ ❸ ❺ ❽ ❶ EdiGate Energy dissipa on inlet, to reduce the turbulence of incoming wastewater ❷ FlocWell Promotes floccula on and diverts sludge to the bo om of the clarifier ❸ Centre Column Central support of structure and inlet flow to clarifier ❹ Peripheral Launder Capturing of clarified effluent for discharge ❺ Sludge Removal Op ons include LogMax, VeeMax and HeadMax ❻ Scum Box Collec on point of scum from the surface ❼ Scum Scraper Rota ng blade on the surface to harvest scum ❽ Sludge Outlet Discharge point of se led sludge ❾ Scum Discharge Scum discharge point from underside of scum box

9 Sludge Removal Logarithmic sludge plow designed for collec on of lighter suspended sludges. Effec ve logarithmic angle range of between 15 and 45 and can travel at p speeds up to 10m per minute. Chevron pa ern sludge plow designed for heavy, rela vely viscous, sludges. The VeeMax sludge plow can be readily adapted to sludge thickening with the addi on of the picket fence module. Suc on design ensures rapid sludge removal and lower sludge blanket depth, reducing the poten al of sludge rising. HeadMax is available in both header and tube configura ons.

10 Optional Features Scum Boxes For collec ng surface scum, the design varies with tank size and wind direc on. CoverSweep Eliminate light in effluent launders to reduce algal growth. Hinged with latches to prevent li ing. Stamford Baffles For elimina ng density current flows that disturb regular flocculant se lement. Prevents sludge from rising up into the effluent trough. CleanSweep Launder Cleaning System For removal of algae from the effluent trough, the brush system trails the rota ng bridge and constantly brushes the through walls.

11 Build Specification In general Hydroflux Epco clarifiers are fabricated with we ed parts from stainless steel, and the bridge and general fabrica on steel work above water line in grade 250 mild steel epoxy coated. The following table summarises the major components and their most common material selec on. Varia ons on the material specifica ons can be made, please consult Hydroflux Epco for further detail. SECTION Centre Column Bridge EdiGate FlocWell SPECIFICATION Rolled painted mild steel Painted mild steel Stainless structure with hinged doors Stainless structure with HDPE shee ng Scraper System Stainless steel 304/316 Squeeges Neoprene Scum Box Stainless steel 304/316 V Notch weirs and baffles Stainless steel 304/316 CoverSweep Wheels Fibrelgass, Aluminium or Stainless steel UHWMPE with or without metal hubs

12 Refurbishment Hydroflux Epco has undertaken numerous refurbishment projects, whereby exis ng clarifiers have been overhauled with new components as follows: New centre columns New FlocWell and EdiGate New LogMax Replacement scraper systems WHS compliance upgrades, with movement detectors and fall arrestors Hydroflux Epco can provide new clarifier internals and refurbish exis ng systems regardless of the clarifier tank design, geometry or OEM

13 Hydroflux Epco Pty Ltd Australia, New Zealand and Australasia Level 26, 44 Market Street Sydney NSW 2000 t: United Kingdom and Europe 1000 Lakeside North Harbour Western Road Portsmouth PO6 3EZ t: Hydroflux Epco is a member of the Hydroflux Group of Companies LogMax, VeeMax, HeadMax, EdiGate, CoverSweep, CleanSweep & EPCO are all registered trademarks of Hydroflux Epco Pty Ltd Version: V1.1