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== Description of Final Project == | == Description of Final Project == | ||
The rapid compost system is a three chamber structure insulated with beach grass bales. The structure is 4'x5'2"x15' and each chamber is 4'x4'x4'. The beach grass will provide insulation necessary to regulate the internal temperature of the system. To protect the bales from rain, a lime plaster will surround the structure. A corrugated metal roof will also add extra protection from rain. | |||
{{How to | {{How to | ||
|title=Compost System | |title=How to Build the Rapid Compost System | ||
|File: FOTD Compost Location.jpg|Project Site |1 |Find an open space. | |||
|File: FOTD Compost Location.jpg |Three Chamber compost System |2 | | |File: FOTD Compost Location.jpg |Three Chamber compost System |2 |Lay the foundation. Our system will have recycled pallets as a foundation. A concrete foundation should always be considered in relation to the weight of the structure and the stability of the ground beneath. | ||
|File:Aleiha dish.jpg |Three Chamber compost System the 2nd |3 | | |File:Aleiha dish.jpg |Three Chamber compost System the 2nd |3 |Stack the bales carefully and away from moisture. It is vital to keep the bales very dry. If any moisture is trapped under the plaster, the bales will rot and mold, creating an unstable and dangerous structure. | ||
|File:Aleiha dish.jpg |Some picture |4 | | |File:Aleiha dish.jpg |Some picture |4 |Slide re-bar through the bales like giant nails to add extra support. | ||
|File:Aleiha dish.jpg |Some random picture |5 |Lay pond liner over the top bales for extra rain protection. | |||
|File:Aleiha dish.jpg |Some picture |6 |Wrap chicken wire around the bales and staple the wire to the bales with large metal "U" shaped staples. | |||
|File:Aleiha dish.jpg |Some random picture |7 |Mix and plaster the bales. Make sure one last time there is no moisture in the bales. | |||
|File:Aleiha dish.jpg |Some picture |8 | Attach the roof and doors to the system. | |||
|File:Aleiha dish.jpg |Some random picture |9 |Test to see if the compost materials need any changes. | |||
|File:Aleiha dish.jpg |Some picture |10 |Plant away with your new soil! | |||
}} | }} | ||
Revision as of 23:58, 5 April 2012
Abstract
A rapid composting system was designed by ENGR215 Team 6 to find a better use for the green waste generated at the Humboldt Coastal Nature Center. Below is a detailed page on the process and cost of building the rapid compost system.
Problem Statement
The Friends of the Dunes invites volunteers every week to remove invasive plants in the Humboldt Coastal Nature Center. Each week, a volume of approximately 6’x6’x6’ of green waste is generated and shipped off the site to be taken care of miles away. In an effort to manage the waste on site, rather than shipping it, a rapid composting system was designed.
Criteria
| Criteria | Weight | Constraint |
| Cost | 4 | Less than $400 |
| Ease of Use | 7 | Usable by untrained volunteers |
| Educational Value | 6 | At least volunteers learn more about rapid compost systems |
| Effectiveness | 9 | Must be able to process about 6’x6’x6’ of yard waste every 14-21 days |
| Labor Intensity | 5 | Cannot require more maintenance than 1-2 times a week for 2-3 hours each day |
| Availability of Amendments | 2 | Bought locally and cheaply |
| Aesthetics | 6 | More professional than a tarp |
| Safety | 10 | Non-toxic and will not spontaneously combust |
| Durability | 8 | Stable for at least one year |
Description of Final Project
The rapid compost system is a three chamber structure insulated with beach grass bales. The structure is 4'x5'2"x15' and each chamber is 4'x4'x4'. The beach grass will provide insulation necessary to regulate the internal temperature of the system. To protect the bales from rain, a lime plaster will surround the structure. A corrugated metal roof will also add extra protection from rain.
Materials Cost
| Materials | Unit Cost($) | Quantity | Subtotal($) | Tax($) | Total($) |
| Our own materials | Cost | Number of units | C times Number of Units | taxes | time taxes |
| Our own materials | 4.49 | 1 | 4.49 | 0.40 | 4.89 |
| Our own material | 2.99 | 12 | 35.88 | 3.23 | 39.11 |
| Total | $ Total |
|---|
Design Cost
Figure 8: Time Invested
Test Results
Add some numbers and results of compost system.