Food waste processing

Types of food waste processing machines

Food waste processing is the recycling of food waste into useful products through technology. Many food waste processors are designed to reduce food waste into fertilizer, biogas, animal feed, and other useful by-products.

• Food waste shredders:

  Shredders are food waste processing machines that cut food waste into smaller pieces. Food waste shredding machine plays a crucial role in food waste management. Shredding accelerates the decomposition of organic waste by increasing its surface area, enabling microorganisms to break it down more efficiently. Shredders improve waste handling by reducing waste volume, which simplifies collection and transportation.

• Food waste digesters:

  Digerters are industrial food waste processing machines that separate useful by-products like biogas and fertilizer through chemical reactions. Biogas can be used as fuel for energy generation. Food waste digesters operate anaerobically, which means they don't use air. This promotes the growth of certain microbes and speeds up the decomposition of the food waste even more. The end products of food waste digesters are usually used as fertilizer or biogas.

• Food waste composters:

  Composting is a natural process of food waste processing machines that recycles organic material, such as fruit and vegetable peels, spoiled produce, and other kitchen scraps, into a valuable fertilizing material called compost. The composting machine speeds up the composting process by controlling the temperature, humidity, and oxygen within the machine. The result is an odorless, clean, stable end product that enriches the soil and makes it fertile. Composters are aerobic, meaning they need oxygen and air to work effectively.

• Food waste separators:

  Separators are food waste processing machines that remove food waste parts like fruit and vegetable fibers. They have distinct screens and filters to separate different food parts. Food waste separators are usually the first or middle step in a food waste processing line. Their separation precision and efficiency are essential for the following food waste processing steps.

• Steam-based food waste processors:

  Some food waste processors use heat to change the structure of the food waste. They process food waste into small pieces through steaming, which makes the following waste separation and handling easier.

• Wet and dry processing systems:

  Wet and dry processing systems are combined systems that can handle both wet and dry food waste. They usually have a pre-processing system to handle liquid parts and a separating system to deal with solid parts. Such combined systems are comprehensive and can deal with different kinds of food waste.

• Integrated food waste processing systems:

  Some manufacturers provide comprehensive solutions. Integrated processing systems can handle various types of food waste. They have food waste shredders and separators and other processing systems combined in one machine. Integrated food waste processing systems can provide one-stop solutions for food waste management.

Specifications and maintenance of food waste processing

• Capacity:

  Food waste processors come in different capacities, which is the amount of food waste they can handle in one cycle. The processor's capacity should be compatible with the amount of food waste generated to ensure efficient processing and avoid overloading.

• Power:

  The power of a food waste processor, usually measured in watts, determines its ability to shred and process waste. Higher power means more efficient handling of tough and fibrous waste.

• Food waste processor type:

  Different types of waste processors suit various settings. Industrial food waste processors, for example, are for commercial use. Kitchen food waste disposers are for home use. Each type has unique specifications and capabilities.

• Sound:

  Food waste processors are measured in decibels (dB). Processors that produce less noise (quieter) are more preferable, especially in residential areas. Choosing a processor with a lower noise level helps to avoid disturbing others and creates a more comfortable working or living environment.

• Durability and material:

  Durability of food waste processing means its ability to withstand regular use without breaking down or wearing out quickly. The lifespan of the waste processor can be extended by choosing one made of strong materials like stainless steel and ensuring it is well maintained.

Regular maintenance of food waste processing equipment is essential to keep them in a good working condition and to prolong their lifespan. Some typical maintenance requires are as follows:

• Clean the processor regularly. Rinse it with hot water and a mild detergent. Wipe down the exterior surfaces to remove dust and dirt. This helps to get rid of food particles that may cause odors or clogs.
• Lubricate moving parts. Lubricating moving parts, such as bearings and blades, help prevent unnecessary wear and tear. Lubrication reduces friction and ensures smooth and efficient operation.
• Check for any loose or damaged parts. Tighten loose components and repair or replace any damaged parts, making it safe and preventing breakdowns. Attend to professionals when required to ensure appropriate repair and safety.
• Observe proper usage guidelines. Follow manufacturer instructions and use the processors appropriately. Avoid overloading or putting in unsuitable items to prevent damage and maintain optimal performance.

Scenarios of food waste processing

Food waste processing machines can be used in different sectors and businesses to manage food waste. Here are some scenarios on how these machines can be used.

• Hotels and restaurants

  Food waste processing machines can be used in hotels and restaurant kitchens to reduce food waste on the premises. The machines can process food residuals into compost, biogas, or gray water right in the restaurant or hotel. This diminishes the amount of waste that needs to be discarded and can improve the environmental footprint of the business.

• Cafes and coffee shops

  Similar to restaurants, coffee shop and cafe food waste processing machines can be utilized to handle organic waste right at the source. Coffee grounds and fruit scraps are common byproducts of these businesses. On-site food waste processors can convert this waste into useful byproducts like compost or energy through anaerobic digestion or vermicomposting systems.

• Supermarkets and grocery stores

  These machines can be used in the produce section of grocery stores and supermarkets where fruits and vegetables are constantly being handled. If food waste processing machines are placed conveniently in these areas, the workers will find it easier to process leftovers from these sections.

• Educational institutions

  Food waste processing machines can also be used in places like schools, colleges and universities. Campuses typically produce a significant amount of organic waste from cafeterias and dining halls. Schools and universities can thereby manage on-campus food waste more effectively and increase sustainability efforts by considering the installation of food waste processors.

• Office buildings

  Waste food processors can also come in handy if installed when lunch and snack breaks are taken in the day. Employees will be able to process their organic waste right there, which will help appropriately manage it.

• Event venues

  Food waste processing machines can also be helpful at arenas and event venues. With many events taking place and food being served, a huge amount of food waste can be generated. Venues will be able to manage this waste right on the grounds if food waste processors are utilized.

• Retail

  Beauty care brands, for example, have to ensure that the products they manufacture are disposed of properly. Food waste processing can also be helpful in these sectors to appropriately manage product waste and ensure brand integrity. Through food waste processing machines, manufacturers can process products like creams, makeups and lotions to extract organic by-products that can be used in their processes.

How to choose food waste processing equipment

When choosing food waste processing equipment, it is important to first understand the waste handling capacity. Identify the volume and mass of food waste. This is likely to depend on the business's daily food waste volume. After that, look for equipment whose capacity matches this figure. Ensure the machine fits the required space and is scalable to accommodate future growth.

Next, consider the waste processing method preferred. Research the pros and cons of the methods outlined above and decide which fits the business's goals, needs and preferences. Choose equipment that is user-friendly. Focus on machines with intuitive controls, clear instructions and good installation and after-sales support. Also, ensure the chosen machine complies with local regulations to evade penalties and ensure hassle-free operations.

For many businesses, food waste processing can be a source of additional income. If this is something one would like to pursue, it may help to look into how the end product, such as compost or biogas, will be marketed. Choose reputable suppliers with good records and plenty of positive reviews. Ask about installation services, warranty and maintenance support.

Food waste processing Q&A

Q1 What is the main purpose of processing food waste?

A1 The main purpose of food waste processing is to reduce what goes to landfill, thus curbing the greenhouse gases produced when food rots in landfills.

Q2 What are the benefits of food waste processing?

A2 Besides reducing food waste, food waste processing generates useful end products, improves soil health, and can produce energy that may be harness to power facilities or used to meet energy demands.

Q3 What is the global food waste processing market size?

A3 The food waste processing market size was valued at USD 1.24 billion in 2020 and is expected to reach USD 1.31 billion in 2021, growing at a CAGR of 5.5%, 1.24 billion in 2020