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Zane Middle School recyclable cleaning station

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Revision as of 19:27, 12 April 2015 by Iad31 (Talk | Contributions) (Contact details)

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Sample photo caption.


Our team, Porta Possibilities, consists of four Humboldt State University Environmental Resources Engineering students. For our Engineering 215 Design class, we were given the opportunity to work with a local school, Zane Middle School, and improve their process of recycling. Our project was to improve the process that was currently in place of cleaning the recyclables from the school's cafeteria.


Zane Middle School currently uses 5 gallon buckets and a simple cart to wash and transport recyclables throughout the facility. This project will focus on creating a new more portable and durable means of processing the wastes produced by the schools cafeteria.

Problem Statement and Criteria

The aim of this project is to create a more durable, transportable, and safe cart to enhance the recycling workflow for staff at Zane Middle School.

Description of Final Project

Our final project is a cart that is built for durability, transportability and efficiency. With a stainless steel sink, pneumatic tires, front-axle steering, and steel reinforcement, the SmartCart is designed for maximum durability and portability.

A fully functional sink basin is operated at a reasonable height, which limits the amount of bending and stress on one's back.


The Pneumatic tires and front-axle steering make for easy and quiet transportation, and provides a great turn radius.


Steel reinforcement makes the SmartCart stable, strong, and durable.




Figure 3(above): Time spent for the SmartCart.


Figure 4(above): Monetary Costs [$] for the SmartCart.

Testing Results

To be edited!

How to Build

Required Materials:

  1. Restaurant grade sink
  2. Garden Cart (or other cart with pneumatic wheels on an axel)
  3. Steel corner bars (17" long) [4]
  4. Hoses (and appropriate sink attachments)
  5. Sink drain strainers
  6. Lid
  7. Rubber tubing (used as lid sealant)
  8. Metal mesh (for drying rack)
Step 1: Weld Steel Corner Bars Together
Welding bars together  
Welding #2  
Step 2: Screw Steel Bars to Cart
Screw bars to cart base  
Vices used to hold bars in place for attachment  
Step 3: Screw Sink onto Steel Bar Platform
Cart screwed onto steel bars  
Step 4: Screw Sink onto Steel Bar Platform
Step 5: Screw Sink onto Steel Bar Platform

Discussion and Next Steps

To be edited!


to be edited

Project Goals

  1. Create a very durable alternative cart
  2. Improve upon the ease of portability of the cart.
  3. Enhance the workflow of the recycler
  4. Improve the overall experience of recycling wastes produced by the school's cafeteria


The final design includes a restaurant grade stainless steel sink( with three sinks) for durability and ease of maintenance as well as a garden cart with pneumatic wheels on an axel for portability needs. The sink is attached to the cart with steel bars to elevate the sink and for reinforcement. The sink is equipped with a suction sealed lid for insulation and safety. Rubber hosing is attached to the underside of the sink drains for ease of disposal of used water. Metal mesh is fastened to the bottom of the cart to be used as a drying rack for washed materials. All the sinks are equipped with strainers to catch any unwanted food matter.

Contact details

Isaiah Duarte - Merissa Coello - Erin McDannold - Brent Davis -