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1、Salsnes Separation ( S.A.) Pty LtdDevlyn Fraser l The purpose of the Salsnes Filterl 1) Separation & dewatering of solids, leading to the reduction of the (TSS) Total Suspended Solids in municipal effluentl 2) Separation & dewatering of solids in Industrial effluent, with the aim of lowering the SS,
2、 COD and BOD, effectively lowering effluent billing costs, as well as possible reductions in operations & maintenance costs. l 2 Models, SF 2000 & SF 6000l Manufactured in 304 & 316 S/Steell Hydraulic loading of 70- 575 m / Hrl Endless Cloth Filter, Woven Polyester, 0.1- 1.0 mm pores (785 Microns Th
3、ick)l 40-70 % removal of suspended solidsl The cake (dewatered Sludge) 25-45 % Dry substratel Weight : 375 Kg (SF2000) 725 Kg (SF6000)l Energy Consumption: 2.5 Kw (SF2000)4.2 Kw (SF6000) l Effluent inflow through inlet tubel Effluent filtered through an endless Filter Clothl Removal of 40-70% of sus
4、pended solidsl The filtered water is released through outlet-pipel Suspended solids are conveyed by filter cloth & dumped into a sludge compartmentl Excess sludge removed from cloth by an Air knifel Primary Sludge dewatering is facilitated by gravity during transport of the sludge to the trough l Se
5、condary dewatering of sludge is facilitated by screw press compacting the sludge in the press cylindera) Excess water is drained via secondary outletl Compressed, dewatered sludge (cake) is released via a spring loaded lid on the press cylinderl Excess Fat deposits are removed from cloth twice per d
6、ay via Hot water spray (20 Ltrs Each) - Adjustablel On/Off & operating speed is controlled by pressure transmitter, measuring the level of inflow, to achieve optimal balance between inflow & the filters filtration properties l Process is completely automated, incl. Cleaning = minimal maintenance A)
7、Overview of Expanded process at Municipal : WWTPS l Salsnes Filter removes SS in parallel to PST, possibly allowing decommissioning of the digester.l Sludge cake to be stabilised (composted) & sent to landfill or otherl Alternately sludge must not be compressed & dewatered, & sent to digester to neu
8、tralise biological activity. l Relieve overloaded capacity SF installed prior to PSTl SF installed after PST to reduce loading on aeration basinsl SF installed parallel with PST, tapping back to aeration basins, removing excess flow rates from PSTl Reduce wear, maintenance & re-furbishment costs on
9、pumps, if installed prior to pump to remove abrasive materials l Do not install SF after PST on the digester feed line, SF not able to deal with digested sludge.l Do not load SF with sludge treated with Flocculants (polymers), possible application for very limited flocculant dosing may be acceptable
10、. l The following are possible applications for SF: Sugar Mills- Juice filtration Tanning Processes Paper Mills Canneries Fish, Poultry food processors and Abattoirs Fruit Juice Processing Biofuel Processes Breweries Screening Before Reverse Osmosis Desalinisation Animal Feed Manufacturers Grain bas
11、ed industries l It is imperative that the SF does not be considered as a means of removing Grit (Sand) from Effluent.l The SF is able to contend with approximately 10% Grit in Effluent.l One must bear in mind that the higher the Grit Loading in the Effluent, the higher the wear and maintenance costs
12、 of the SF will be. l Reduced effluent SS, COD, BOD, Efficiently Reducing Effluent Billing Costs. l Recovery of some Protein content in SS for Re-processing in the Rendering Process that may have income generating benefits.l The refining of Sugar cane and Fruit Juice Extracts, including the recovery
13、 of SS for further processing.l The recovery of Paper Fiber for Reprocessing. l No Chemicalsl Negliable Water Consumptionl Recovers and Dewaters Sludge in Combined Processl Outstanding Results : 40 70 % SS Removal 25 45 % Dry Substratel Low Maintenance Costs l Easy Repair and Maintenance Procedure l
14、 Low Power Consumption and Running Costsl Self Cleaning Automatedl Level Sensor Controls Speed and Optimises SF Filtering Performance at various flow Rates All Automated. l Exceptional After Sales Service and Back Upl Compact Design More Placement Optionsl Compact and Light Easily Maneuverable l Refined for South African Applications l Globally Recognised, Approved and Industry Provenl Recovery of SS for re-processing if requiredl Substantial Effluent Billing Cost Saving = Feasible Payback Term
SalsnesFilterOverviewsalsnes過濾器概述
