![]() There is a lid with a toilet seat, stir rod, vent fan and hose, and urine pump. Stage One is "The Throne," shown in figure # and is where the CCAT residents will be going to the bath room. The process works by having the individual barrels cycle through three stages in which raw waste is added, composted, and then used as fertilizer for trees. The fan blows the dirty air from the barrel through the vinyl hose and out the main vent.Ĭonstruction Costs Materials These hoses can be easily removed from the barrel lid for easy movement of the barrels. Connecting the three waste barrels to the main vent is vinyl hose, the type used for drying machines. The venting system has a main vent located in the bathroom ceiling that goes through the roof to the outside. In order to exhaust odors to the outside and allow for evaporation a venting system is necessary. Also in each barrel is a steel hand mixer with corkscrew tip used to mix and aerate the compost mass. The function of this pipe is to allow the hand crank pump to reach the fluid at the bottom of the barrel without contacting the solid waste. Each pipe is held in place by a hole in the grate and a hole in the lid that the pipe fits through. In each barrel there is a two inch PVC pipe that extends from the lid to the barrel floor. The grate is held 2.5 inches above the floor of the barrel by four pieces of three inch diameter PVC pipe. This cavity also allows air flow to the bottom of the compost. The grate and mesh together prevent solid waste from reaching the bottom of the barrel and create a cavity at the bottom for fluid to drain to. Located in the bottom of each barrel is a steel barbeque grate with a steel mesh. Each of the three barrels sits on a round wooden base which has five evenly spaced steel castors to for movement. This insulation keeps heat generated by microrganisms in the compost mass inside the barrel. Fixed to the outside of each barrel is an insulation jacket. The liners protect the steel from corrosion and make cleaning easier. Each barrel will be lined on the inside with a drum liner, made of thick durable plastic sheeting, formed specifically to fit inside the barrels used. The design of the waste barrels was based on a design from the Sun Frost company, located in Arcata CA.įigure 3: Picture of the venting connection and fan for the stage 2 lid. After a barrel has been composting for a year, the compost will be used to fertilize trees near the CCAT house. As one barrel is being filled the other two barrels are composting to breaking down the organic matter. The system consists of three barrels that are cycled between receiving raw waste and composting. A composting toilet was one project, other projects include: Public Health Bike Blender, CCAT Kitchen effluent particulate filter, greywater grease trap, something for kids, CCAT cob protection and beautification, and a cloths dryer.ĭesign Description These ideas were open ended and the solution was left to the students. Humboldt State's engr215 class was given several ideas for things needed at the CCAT house. ![]() A composting toilet is an appropriate technology because a composting toilet will recycle human fecal matter, changing a waste into a resource. The CCAT house, located on the Cal Poly Humboldt campus in Arcata, CA, is an example for sustainable living and strives to educate the public about appropriate technologies.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |