FAQ – LFC
- Is the LFC chopping or grinding up the waste food?
No, the LFC is mixing the new waste food with the old waste food and the Powerzymes (microorganisms). The waste food is decomposed and primarily produces water, CO2, and heat. If waste food is chopped or ground, small parts of undigested food will enter the exit stream, increasing the levels of TSS (total suspended solids) and BOD (biological oxygen demand). The motor on the LFC acts only to mix, or slowly stir, the waste. It runs only a quarter of the time which minimizes the use of electricity.
- Is the LFC a batch process?
No. You add waste food at any time. The machine is constantly digesting the waste.
- Does the LFC smell?
No. The decomposition is an aerobic process (in the presence of oxygen). In a forest, the leaves from the trees fall on the floor and decompose in an aerobic manner. The forest doesn’t smell. The same process is used in the LFC, but we accelerate it significantly.
- Can we use the output of the LFC as fertilizer to irrigate the land?
Possibly. If you feed the machine with only waste from the preparation of fruits and vegetables, then what comes out of the LFC could be used to irrigate the land. It is rich in nutrients just as if you had composted the waste food in a more traditional manner. It will then make an ideal fertilizer. However, if the waste food has meats, fats, grease, and spices such as salt and peppers, the output may not be suitable. You should test the output to see if you can use it. In any case, you need to filter the output before you can use it. See Power Knot’s application note on this.
- How does the LFC weigh the amount of waste food?
There are load cells mounted on each corner of the LFC. These weigh the total weight of the LFC. On installation the software calibrates itself so it knows the empty weight. From there, the software knows how much is in the LFC and how much is added each time.
- How does this help our company?
You can see the amount of waste that is ingested by the hour, day, week, month, and year. This is also converted by the LFC to report the amount of CO2 equivalent that is diverted from the landfill. 1. This feature has a patent pending. (Liquid Food Composter)
- Power Knot offers eight different sizes of LFCs. How do we determine what size of LFC to buy?
Weigh the waste every day and make a record of it. Alternatively, weigh the waste food on Saturday, Monday, and Wednesday if you can’t weigh it every day for a week. Take an average. Also, the capacity of a machine is based on the duration of your working day. If you add the same amount of waste food at regular intervals over an 18 hour day you will need a smaller machine than if you dispose of the same amount of waste food over an eight hour day.
- What data is available?
Through the touch screen, you access all the configuration, control, status, usage data, statistics, and diagnostics. Data about the amount of waste food ingested are available numerically and graphically.
- How do we access the data through the cloud?
The LFC has an ethernet port. You connect this to your LAN. Once connected, the LFC will send its data to the cloud server.
- How do I access my data?
You can use any device that has a browser (such as Safari, Firefox, or Chrome). This means you can use any mobile phone, any tablet, or any PC. This encompasses, for example, a device that can be running Apple iOS, Google Android, Microsoft Windows, or Linux.
- In what way does the use of the LFC reduce my carbon footprint compared to sending waste food to the landfill?
When waste food is sent to the landfill, it is buried, and decomposes anaerobically, producing methane (CH4) and other gasses. That’s why landfills smell. Methane is 72 times worse for the atmosphere than carbon dioxide (CO2). It is for this reason that many jurisdictions are banning organizations from sending organic waste to the landfill. When the waste food decomposes in the LFC, it produces CO2 as part of the natural cycle of carbon (meaning it is carbon neutral). Hence, you have significantly reduced your carbon footprint.
- What about methane, CH₄? Isn’t that created in the process inside the LFC?
No. The decomposition in the LFC is aerobic (see also question 1.3 and question 13.1).
- Are there any chemicals used in the LFC?
No. The decomposition takes place in a natural way using microorganisms. Microorganisms are around us everywhere and are responsible for digesting all types of waste. We have a special blend of microorganisms (Powerzyme) that accelerate the decomposition of most foods. Our LFC can decompose most waste foods within 24 hours.
- Where are the LFCs designed?
The LFCs are designed and developed by Power Knot in Silicon Valley. Power Knot owns all the IP (intellectual property) and all the patents.
- Is the technology of the LFC proven and reliable?
Yes. Power Knot’s joint venture company (Power Knot Korea) has been making LFC machines since 1999. The current model is the fourth generation machine and joins thousands that are already deployed.