Creative Engineering
Our goal was to make a compost bin that is more effiecient and can be placed on everyday sidewalks. Our compost bin would be able to reduce food waste thrown in the landfills. There are two floors to this compost bin. The top bin has a handle that you stir after throwing something away for around four seconds to mix around the compost and then the worms on the bottom floor would produce fertilizer or "mulch" with the food that falls through to the bottom layer through a hole in the center. The bin also has small holes in the buckets so the worms can breath.
We started offnot knowing what to do then we decided on trash last minute. we thought that compost bins being not around was a waste and all the food would go to the dump and the dumps are really bad so the less of the dump the better, plus composting is effecient and you can make money off the dirt you make. we reseached facts about landfills,composting and the effect pollution has on the world. Mostly our group just stared at a pug licking a computer screen http://songdrops.com/pug-licking-screen-clean/ we side tracked for several days and finished the project at conrads house for four hours. I was suprised by the amount of work we did in that long amount of time because all we did is cut several holes in a bucket and stack it on top of another bucket then make a stirring stick out of PVC pipe.
I think two things we could have done better is use our time wisely instead of looking at cute dogs and we could have studied more about landfills to see how much of an impact landfills do to us. Two things I have learned from doing this project is to always focus on getting the project done early because we started our prject late and learning about composting food from making the buckets.
I think two things we could have done better is use our time wisely instead of looking at cute dogs and we could have studied more about landfills to see how much of an impact landfills do to us. Two things I have learned from doing this project is to always focus on getting the project done early because we started our prject late and learning about composting food from making the buckets.
Concepts
Aeration
-the process by which air is circulated through, mixed with or dissolved in a liquid or substance.
Moisture
-water or other liquid diffused in a small quantity as vapor, within a solid, or condensed on a surface.
-the process by which air is circulated through, mixed with or dissolved in a liquid or substance.
Moisture
-water or other liquid diffused in a small quantity as vapor, within a solid, or condensed on a surface.
Composting depends on the time, temperature, aeration,moisture, and the size of what it is in. If the compost is in a larger area it will decompose faster because there is more air surrounding it causing aeration. On the left you can see how tempurature can effect the compost temperature. Decomposition is at its fastest at the thermophilic stage which is around 104°F to 140°F, however it would be to much of a pain and energy waste to maintain this temperature so instead we twist the stirrer which turns the compost, causing the compost to gather more oxygen to replenish its supply to decompose its contents more effeciently. I learned about aeration, the thermophilic stage, and composting temperatures at this website=> http://compost.css.cornell.edu/physics.html