Puanton

Convenient and sustainable kitchen waste recycling system
Overview

Puanton is a kitchen waste recycling system to make it convenient and even fashionable to recycle kitchen waste, improve the recycling rate, and use it to generate electricity.

In this collaborative project, I identified key user pain points, crafted solutions, and 3D rendered them into a tangible prototype.

Team

Tzu-Hsien Kuo
Yi-Ting Liu

My Role

Product design

Timeline

9 months

Design process

1
Research
Target users
Interview
Survey
2
Insights
Pain points
User need statements
3
Design
Sketching
Wireframes
3D Modeling
Rendering
Prototyping
4
Presentation
Interactive prototype

Background

In Taiwan, kitchen waste accounts for 40% of total garbage, yet less than 10% of it is recycled due to various reasons. Firstly, there is no unified system for recycling kitchen waste, and each district has its own policy for collecting it, leading to inconsistencies and confusion among the public. Additionally, the sheer volume of kitchen waste often results in insufficient transport containers, forcing collectors to discard it with general garbage. As a result, there is a pressing need for a more cohesive and effective kitchen waste recycling system to tackle this issue.

Target users

  • Households that are not living in a community with centralized garbage collection.
  • May have to work overtime and cannot catch the garbage truck.
Research

Problem of kitchen waste

In Taiwan, due to the lack of a proper sewerage system, it is not possible to use a garbage disposal unit to dispose of kitchen waste by grinding it up and flushing it down the drain, as is commonly done in the United States. Below is the process of kitchen waste treatment with different types of residential properties in Taiwan. As a result, the recycling rate of kitchen waste is low, causing external costs for both the incinerator and the environment.

User journey map
Kitchen waste recycling rate

This chart shows the recycling rate is decreasing annually.

The proportion of kitchen waste

Approximately 40% of the waste generated in Taiwan is comprised of kitchen waste.

Why causing this situation?
🛢️ Insufficient recycling bins
The kitchen waste collection bins on the garbage truck are insufficient to accommodate the amount of food waste produced, leading to some of the waste being thrown directly into the general garbage.
👣 For convenience
Some people may not separate their kitchen waste and directly throw it into the general garbage bin for convenience.
Kitchen waste utilization
We have discovered that kitchen waste can be utilized to generate electricity, with 1 ton of food waste capable of producing 100 degrees of electricity. With Taiwan producing approximately 6,100 tons of kitchen waste every day, the significant amount of food waste generated in the country presents a promising opportunity for sustainable energy production.

Households v.s kitchen waste

🏃 Need to be on time
Households have to catch the garbage truck on time to dispose of their food waste. If they miss the collection, they have to wait until the next scheduled pick-up. However, food waste cannot be stored for long periods without proper storage, as it may start to emit unpleasant odors.
🤮 Foul smell
Food waste's foul smell and unappealing appearance can be off-putting to people, causing them to feel disgusted or repulsed.
🌋 Unfriendly for environment
Approximately 84% of people opt to use plastic bags as a convenient way to dispose of kitchen waste. However, this habit is highly detrimental to the environment and not sustainable.
🪣 Unpleasant experience
Approximately 15% of people use a bucket to dispose of their kitchen waste, but some may feel disgusted by cleaning the bucket after dumping the waste.
Insights

Survey

The way of they classify kitchen waste
Containers for disposing of kitchen waste
Where households dispose of kitchen waste
The container that users wish to use for storing kitchen waste

Design goal

To create a waste-to-energy system that allows individuals to effectively manage their kitchen waste at home while eliminating unpleasant odors.

Design

Ideations

We have done marketing research and found that most of the kitchen appliances are square. Therefore, we want our product to be suitable for kitchen, so we have come up with a simple shape, which is composed of rectangle and circle.

The container
The appliance

User flow

Final design

The container: Puanton

Puanton is a essential component in our mission to simplify food waste recycling for families. Designed as a recyclable container, Puanton eliminates the need for washing before disposal.

Made from waterproof material derived from fermented food residue, Puanton is both organic and natural. This means the containers and processed food waste can be recycled to generate electricity, contributing to a more sustainable approach to waste management.

Its streamlined shape allows for efficient mass production, and the cap is firmly attached to the body to prevent loss. Plus, its leakproof design ensures no spills or odors to worry about.

we utilized  3D printing, ABS plastic, and paper materials to create some prototypes.

Food waste processor

In contrast to existing products, our processor does not convert food waste into fertilizer; instead, it is specifically designed to prepare the waste for electricity generation. While the appearance of the processor is simple, its functionality is comprehensive. Operating the machine is easy, initiating the entire process by simply pressing the start button.

How to use

Consume the food.

Place the food waste into the machine.

Insert Puanton containers into the machine, allowing for automated filling of processed food waste.

Press the start button and wait for the machine to shred and dry the food waste.

Gathering station

Our gathering stations are strategically placed along recycling truck routes, convenience stores, and other easily accessible locations. Like vending machines, when a gathering station reaches capacity, our staff will collect the used Puanton containers and deliver fresh ones to the power plant. This ensures uninterrupted operation and maximum convenience for families, as the system works around the clock.

To further enhance user experience, our system includes a user-friendly application. The application calculates the electricity discount based on the weight of food waste contributed, providing incentives for users to participate in recycling actively. Additionally, the application offers a mini-map that displays nearby gathering stations, making it easy for users to locate the most convenient drop-off points for their food waste.

CMF

We have designed a range of common colors for the processor to cater to various kitchen styles and preferences. This allows users to choose a color that best complements their kitchen aesthetics, ensuring the processor seamlessly integrates into their kitchen setup. With multiple color options available, users can select the one that matches their style and enhances their kitchen's overall look.

LOHAS white

conservative gents blue

classic black

Logo

Logo was designed by me.

Exhibition
Reflection

Takeaways

This is my first experience working on such a massive project, and upon reflecting on it, I realize that it has greatly expanded my knowledge of sustainability design. It has truly opened my eyes to the fact that we still have countless opportunities to impact the environment positively.

Throughout this project, I have identified areas that require improvement. For instance, we still need to refine the mechanics to ensure our product functions effectively. Additionally, we need to address certain flaws of taking kitchen waste to the gathering station in order to enhance the overall user experience.

Despite these challenges, I have gained valuable insights from this project, including the opportunity to interview experts and gain a deeper understanding of how kitchen waste can be converted into electricity. It has also encouraged me to think creatively and find innovative solutions to everyday problems that can contribute to environmental sustainability.