Organic waste: what it is, examples, and how to use it sustainably

Learn about the concept of organic waste and understand the best practices for disposing of it correctly

Organic waste: what it is, examples, and how to use it sustainably

Learn about the concept of organic waste and understand the best practices for disposing of it correctly

Ícones de cinco ferramentas de jardim com alças vermelhas e áreas metálicas: trado, ancinho, pazinha, forquilha e tesoura.
Published by
Suzano Team
July 28, 2026
5
Reading min

Organic waste is one of the most common types of waste we produce every day. It accounts for a significant portion of the waste generated, yet many people still do not know exactly what characterizes this material or how to dispose of it properly.

Official data from Brazil indicates that 45.3% of the waste generated in the country consists of food scraps and waste, green waste, and wood.

When disposed of improperly, these types of waste can cause serious environmental impacts, such as water pollution, greenhouse gas emissions, and a reduction in the lifespan of landfills.

In this article, we will explain everything you need to know about organic waste: what it is, how it differs from inorganic waste, and how to dispose of it correctly or repurpose it through techniques like composting. Read on!

Organic waste: what is it?

It is waste generated from biodegradable materials, meaning materials that decompose naturally through the action of microorganisms, such as bacteria and fungi.  

This type of waste comes from natural sources, primarily products of plant or animal origin.  

Organic waste can be composted, meaning it can be naturally degraded and transformed into organic compost, which, when applied to the soil, provides various benefits such as increased nutrients and improved plant growth.

When we talk about types of organic waste, the most common examples include food scraps, such as fruit and vegetable peels, dry leaves, coffee grounds, eggshells, and even leftovers from prepared meals, such as rice and beans.  

In addition, garden waste, such as branches and fallen leaves, is also classified as such.

What is the difference between organic and inorganic waste?

The main difference between organic and inorganic waste lies in its origin and decomposition capacity.  

Organic waste is composed of biodegradable materials, meaning they can be naturally decomposed by microorganisms, such as food scraps, leaves, fruit peels, and other waste of plant or animal origin.  

Inorganic waste, on the other hand, is made up of materials that do not decompose easily, such as plastics, metals, glass, paper, sand, construction debris, refrigerators, stoves, etc., which can take years to degrade or, in many cases, never decompose completely.

Hazardous Waste: These materials, such as syringes, contaminated packaging, and other hazardous waste, must be disposed of in a specific manner, in accordance with local regulations.

By considering each type of waste, it is possible to learn how to recycle waste correctly

Organic waste: everyday examples

Considering the various types of organic waste, the most common examples include waste from food and plants, which are easily biodegradable.  

They can be composted and turned into fertilizer, which helps reduce the amount of waste in landfills and contributes to sustainability. Check out a few:

  • Coffee grounds
  • Coffee beans
  • Coconut fibers
  • Eggshells
  • Wilted flowers
  • Potato and carrot peels
  • Fruit and vegetable scraps
  • Dried leaves and plant twigs
  • Leftover cooked food (rice, beans, pasta)

These types of waste are compostable and, when managed correctly, can be turned into high-quality fertilizer for use in gardens, vegetable patches, and even large-scale farming.

How should you dispose of organic waste?

The ideal way to handle this waste is to compost it, turning it into organic compost.  

This not only reduces the amount of waste sent to landfills but also helps lower greenhouse gas emissions, which are released when waste decomposes improperly, such as in landfills.

If composting is not a viable option, the next best approach is to separate this type of waste and send it to community composting centers or waste treatment facilities, which can process it properly.

It is important to avoid mixing organic and inorganic waste, as this mixture makes the recycling and composting process much more difficult and less efficient. Furthermore, proper disposal is essential to minimize environmental impact.

Read also: 5 habits for a more sustainable life

What can be done with organic waste?

Organic waste offers various reuse opportunities that contribute to sustainability.  

Here are some practices you can adopt to give this type of waste a more useful and eco-friendly purpose:

  • Biogas production: the decomposition of organic waste can generate biogas, a renewable energy source that can be used for heating or electricity generation
  • Soil hydration: organic waste, such as dry leaves and pruning scraps, can be used as mulch to help retain moisture and protect plants from extreme weather conditions
  • Home composting: food scraps, fruit peels, and dry leaves can be turned into organic compost, an excellent natural fertilizer for enriching garden and vegetable patch soil
  • Animal feed: some types of organic waste, such as food scraps, can be used to feed pets or even farm animals, depending on the nature of the waste

Now that you have a better understanding of organic waste, what it is, and how to dispose of it, you can see that composting is a sustainable technique that should be encouraged. Here is how to make efficient use of your waste through composting.

How to start your own compost?

Home composting is a great way to make use of organic waste. Here is a simple step-by-step guide to starting your own compost at home:

  1. Choose a suitable location: find an airy, shaded spot in your garden or on your balcony to place your compost bin
  1. Choose a container: you can buy a ready-made compost bin or build one using materials like wood or plastic. The important thing is that it has good ventilation
  1. Add your waste: start adding organic waste, such as fruit scraps, vegetable peels, and dry leaves, to your compost bin. Avoid materials like meat, dairy, or greasy waste
  1. Mix regularly: to speed up the decomposition process, mix the contents of the compost bin once or twice a week
  1. Monitor moisture: the compost should be damp, but not soggy. If necessary, add a little water to maintain moisture
  1. Wait for decomposition: in a few months, the waste will turn into a nutrient-rich compost that can be used for plants

With this simple practice, you can significantly reduce the amount of organic waste sent to landfills and turn it into something useful.

The importance of proper organic waste disposal

Properly disposing of organic waste is crucial for protecting the environment and public health.  

This is because, when disposed of improperly, it can release methane, a greenhouse gas much more potent than carbon dioxide, increasing global warming.  

Furthermore, organic waste can contaminate soil and waterways, harming local flora and fauna.

Recognizing this importance, the National Plan for the Reduction and Recycling of Urban Organic Waste, launched by Brazil's Ministry of the Environment, provides for an investment of R$ 12 billion by 2050 to reduce the amount of organic waste improperly disposed of in Brazil.

The plan seeks to increase recycling and composting, reduce greenhouse gas emissions, and improve waste management, promoting sustainable solutions and contributing to the circular economy.  

Implementing proper organic waste management practices is essential to ensuring a healthier and more environmentally balanced future, combating pollution and negative environmental impacts.

Organic waste consists of biodegradable materials that can be transformed into valuable compost through practices like composting.

The proper disposal and utilization of this material is essential for sustainability, as demonstrated by national recycling and waste reduction plans.  

Now that you know what organic waste is and how to dispose of it, discover what other sustainable practices you can incorporate into your daily life and do your part to care for the environment.

ILLUSTRATION:
Ohana Pacheco

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