Waarom er statiegeld zit op blikjes

Introduction

The speaker introduces the topic of the video, which is about the design and importance of aluminum cans.

Importance of Aluminum Cans

• Over 150 million aluminum cans are discarded in the environment each year in the Netherlands.

• Starting from April 1st, 2023, a deposit fee of 15 cents will be charged for each can to encourage recycling.

• The speaker emphasizes that there is more to aluminum cans than meets the eye and promises to reveal their fascinating world.

Fascinating World of Aluminum Cans

The speaker discusses how aluminum cans are designed and made.

Design and Production

• New aluminum cans have a unique barcode with information about their shape, weight, and producer.

• Old cans do not have this barcode but will still be accepted for recycling.

• Four hundred producers and importers in the Netherlands must redesign their products to include this new barcode on an estimated 2.5 billion new cans produced annually.

• Worldwide, approximately 370 billion aluminum cans are produced every year.

Ingenious Design

• The cylindrical shape of an aluminum can is stronger than a sphere or rectangular prism.

• A sphere has no corners but requires more material to make it strong enough. It also rolls easily.

• A rectangular prism does not roll but has weak points at its corners that require thicker walls and more material.

Why Are We Drinking So Many Aluminum Cans?

The speaker explains why we consume so many aluminum cans despite their environmental impact.

Convenience

• Aluminum cans are convenient because they are easy to transport, stack, store, and open.

Ingenious Design (Continued)

-The engineer guy explains in detail how ingenious the design of the aluminum can is.

The Benefits of a Cylinder

This section explains the benefits of using a cylinder in manufacturing.

Cylinders are a Combination of a Sphere and a Cube

• A cylinder combines the good properties of both spheres and cubes.

• From above, it looks like a sphere, while from the side, it looks like a cube.

• It also utilizes 91% of space.

Cylinders are Easy to Produce

• Cylinders are much easier to produce than other shapes.

• They can be made by pressing an aluminum disk through multiple iron molds for the desired shape and diameter.

• The process takes only one-seventh of a second.

Curved Walls Make Cylinders Stronger

• Curving the walls makes them thinner and stronger at the same time.

• The curved bottom distributes vertical pressure over horizontal lines, making it capable of carrying more weight.

Sealing and Coating Aluminum Cans

This section explains how aluminum cans are sealed and coated.

Protecting Against Corrosion

• After shaping, the inside is coated with plastic to protect against corrosion from drinks or metal taste in drinks.

Sealing Aluminum Cans

• Modern cans use double seams that seal hygienically instead of welding or soldering as in older cans.

• The can is sealed by pressing and pushing from two sides.

Strength of Aluminum Cans

This section explains the strength of aluminum cans.

Carbon Dioxide Keeps Drinks Fizzy

• Carbon dioxide keeps drinks fizzy.

Nitrogen for Non-Fizzy Drinks

• Non-fizzy drinks like juice or iced tea use nitrogen to keep the internal pressure equalized.

Aluminum Can Strength

• Aluminum cans are strong enough to hold a full-grown man's weight without collapsing.

• Closed cans cannot be crushed, while open ones can be easily compressed.

Fun Facts About Aluminum

This section provides some fun facts about aluminum.

Abundance of Aluminum

• Eight percent of the earth's crust is made up of aluminum, making it abundant.

• Only oxygen and silicon are more common than aluminum in the earth's crust.

Durability of Aluminum

• Aluminum is a durable material that has many applications, including in manufacturing cans.

Polyethylene Terephthalate (PET) and Aluminum Cans

This section discusses the recyclability of PET bottles and aluminum cans.

PET Bottles

• PET bottles are recyclable.

• Since July 2021, there is a deposit on small PET bottles.

• 80% of all small and large PET bottles are recycled.

Aluminum Cans

• Over 70% of aluminum cans worldwide are recycled.

• Recycling aluminum requires less energy than producing new aluminum.

• Recycled aluminum can be used almost infinitely without losing quality.

Drawbacks of Aluminum Cans

This section discusses the drawbacks of using aluminum cans for packaging.

Mining and Processing

• New aluminum still requires a lot of energy to mine and process, which produces pollutants and greenhouse gases.

Coating on the Inside

• The plastic coating on the inside of an aluminum can cannot be recycled.

• This coating creates waste that takes a long time to decompose in nature.

Statutory Deposit System for Aluminum Cans

This section discusses the introduction of a statutory deposit system for recycling aluminum cans.

Benefits of Statutory Deposit System

• A "clean inflow" makes recycling easier.

• Statutory deposit systems reduce waste by 70 to 90 percent.

• There are now over 5,000 supermarkets with machines that accept both plastic bottles and aluminum cans.

• There are also 22,000 other collection points, such as gas stations and sports clubs.

Reasons for Delay

• The statutory deposit system was supposed to start on January 1, 2021, but the sector was not ready due to IT problems, lack of sorting machines, and hygiene concerns.

• There were also legal issues that needed to be resolved.

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