GREASOLUX™ application examples

2 The Performance Of The Grease Degrading Bioproduct Greasolux In The Meat Manufacturing Factory And Municipal WWTPProblem• A municipal wastewater treatment plant in one Baltic town continuously had problems with the fat, oil and grease (FOG) accumulation in the sewer lines, lift sta-tions and wastewater treatment plant, since the start up of a local meat processing facility. The highly polluted waste-water directly impacted the treatment plant in the follow-ing ways: • Increased grease accumulation in sewer lines and lift stations;• Poor sedimentation of the active sludge in the secondary clarifiers;• High sludge volume index (SVI- ~200);• Poorer sludge dewatering results: lower solids content in dewatered sludge; • Greasy sludge blanket on the top of the treatment plant (see pictures). The meat factory also faced the increased maintenance for (FOG) accumulation in grease traps, and sewer lines clogging plus increased fees for the discharge of highly contaminated wastewater to the municipal sewer lines.Brief description of wastewater treatment system of the meat factory and the town • The meat factory is discharging app. 200 m³ per day of wastewater to the municipal sewer lines. • The wastewater is treated in 3 grease traps and the sedimentation-collection tank in a row at the meat factory. • After the primary treatment the wastewater is dis-charged to the municipal sewer lines.• The municipal sewage system and wastewater treatment plant consists of: couple kilometers of sewer line from factory to WWTP, lift station, primary sedimentation tank, aeration tanks, secondary clarifiers and sludge dewa-tering department.• Total daily wastewater flow to municipal WWTP is from 5000 to 8000 m3.Solution For the solution of grease accumulation problems GREASOLUX cartridges were proposed. They were placed in the sewer system of the meat factory. GREASOLUX cartridges are rugged, submersible cylinders, containing highly concentrated environmentally–safe, naturally occur-ring, microbes and fermentation media, that slowly dissolve and are released to the wastewater. The main tasks of using GREASOLUX are:• Reduce total contamination of the meat factory wastewater.• Reduce grease accumulation in the sewer lines, grease trap and lift station.• Reduce grease concentration in the active sludge, increase the overall performance of wastewater treatment and sludge dewatering processes in the municipal wastewa-ter treatment plant.Dosing• The GREASOLUX application commenced in the middle of June 2012. • 4 units of GREASOLUX-M were used in total. • Three GREASOLUX-M cartridges were sub-mersed in grease traps (single cartridge to every grease trap) and one GREASOLUX-M unit was submersed to the sedimentation-collection tank in the area of meat manufac-turing factory. • The GREASOLUX cartridges are then replaced after approximately 2 months Results After three months of GREASOLUX use the follow-ing results were observed:At the meat factory:• Using of GREASOLUX helped to avoid block-ages of pipes and reduce grease accumulation in the grease traps, equalization tank, and lift station.Table 1 Data of meat factory wastewater quality before and during the use of GREASOLUX Parameter Before use of GREASOLUXDuring the use of GREASOLUXChDS, mgO2/l 2000 - 3000 mgO2/l 1200 - 1900 mgO2/lTHE PERFORMANCE OF THE GREASE DEGRADING BIOPRODUCT GREASOLUX IN THE MEAT MANUFACTURING FACTORY AND MUNICIPAL WWTP3 The Performance Of The Grease Degrading Bioproduct Greasolux In The Meat Manufacturing Factory And Municipal WWTP• Also GREASOLUX helped to decrease the con-tamination of the wastewater discharged to the municipal sewer system. At the municipal wastewater treatment plant:• The grease degrading microorganisms successful-ly inhabited the aeration basins of the treatment plant. The present population of the active sludge microorganisms was expanded with the special, grease degrading microorgan-isms – the efficiency of grease biodegradation was consider-ably increased.Table 2 The variations of the sludge volume index (SVI) during and before GREASOLUX dosing• After a few months of GREASOLUX use the blanket of the greasy sludge disappeared from the surface of the aeration zone and sedimentation tank of the wastewater treatment plant. • The sludge sedimentation conditions in the mu-nicipal wastewater treatment plant improved - the sludge volume index dropped down. The use of GREASOLUX eliminated the washouts of active sludge from the second-ary clarifier, determined by the poor sedimentation condi-tions of the active sludge.Parameter Before use of GREASOLUXDuring the use of GREASOLUXSludge volme index (SVI) ~200 70 - 804 The Performance Of The Grease Degrading Bioproduct Greasolux In The Meat Manufacturing Factory And Municipal WWTP1 pic. Wastewater treatment plant before and during GREASOLUX use2 pic. Effect of GREASOLUX on active sludge in aeration tankIf you have any questions on use of Greasolux, please contact us and we will kindly provide a consultationTHE EXAMPLES OF THE MUNICIPAL WASTEWATER TREATMENT PLANT BEFORE AND DURING THE USE OF GREASOLUX 3 pic. Secondary sludge settling tank before and during the use of GREASOLUX