Immediate breakdown of fat, oil, and grease
Qwik-Zyme L in the Field
How Qwik-Zyme L Works:
Qwik-Zyme L is an excellent grease degrader in sequencing batch reactors (SBR), wastewater treatment plants, equalization tanks, and food and egg processing plants. It can degrade a range of fatty acids such as oleic, steric, and palmitic as well as fish oils, triglycerides, milk, and animal fats. Qwik-Zyme L works best from pH 6-9 and from 45–140°F (8 to 60°C) and is formulated for aerobic treatment systems. For similar issues in anaerobic process, see Ana-Zyme G.
Applications and Benefits
- Collection systems and lift stations
- Sequencing batch reactors (SBRs)
- Municipal plants
- Egg processing plants
- Reacts quickly
- Degrades fat, oil, and grease (FOG)
- Prevents foaming
- Cleans plants
- Easy to use
Manufacturer of Luxury Soaps Controls Fatty Acid Foaming
High Lauric and Stearic Fatty Acids
Qwik-Zyme L, VitaStim Surfactants
An organic chemical manufacturer in North Carolina contacted us about foam being generated in their treatment system. They use a series of two lagoons, with high aeration in the first lagoon to pretreat their waste stream before sending it to the municipal wastewater treatment plant. The waste stream has high concentrations of lauric and stearic acids which contribute to 600 ppm influent BOD and 200 ppm COD. The system was not achieving complete breakdown of these fatty acids as the waste stream moved quickly through the system. The operator began using VitaStim Surfactants to add new bacteria cultures which break-down fatty acids. This improvement was enough to make the customer happy, but we thought that adding our Qwik-Zyme L, a liquid biocatalyst product, would help break down the fatty acids even more quickly. The biocatalyst accelerated the process, which was a huge benefit in this waste stream with a short detention time. The combination of biocatalyst and bacteria brought the system’s effluent waste stream down to 8.1 ppm BOD and 0.4 ppm COD.
Municipal WWTP and Local Industry
120,000 gallons per day
The municipality upgraded their wastewater plant three years ago with fine bubble aeration. Immediately they began noticing a foot of foam on the basins and persistently higher effluent ammonia numbers. They traced the foaming issue down to a tannery in town. The tannery has an existing wastewater process of their own consisting of an equalization tank followed by aeration and a very simple DAF unit. To clean the fat, oil, and grease off hides the tannery uses surfactants, substances similar to soap in their make-up. We learned the cause of the issue in the municipal plant was that surfactants were passing through the tannery system undigested and then foaming when they hit the fine bubble diffusers at the municipal system. The tannery experimented with a number of surfactants to help stop the foaming but to no avail.
The solution was to breakdown the surfactants at the tannery’s treatment plant. We had them increase the holding time in their EQ tank to create anoxic conditions and then they added Qwik-Zyme L and Qwik-Zyme P to speed the breakdown of the grease and long-chain fatty acids. The process was further enhanced by adding Foam Buster to the aeration tank. Foam Buster’s micronutrient blend boosts the ability of native bacteria to degrade fatty acids and grease. The biocatalysts kicked off the surfactant degradation process and the native bacteria, with the help of Foam Buster, finished the process. Immediately, the city noticed 95% less foam and better settling. As the foam went away they also realized that the surfactants had been knocking out their nitrifiers. As the surfactants were no longer hitting them as they had before, nitrification improved and their effluent ammonia dropped. Now both the municipality and the tannery are happy.