Rebuilding Haiti must start from the ground up, with agricultural education
Haiti Reconstruction International's new stoves produce biochar and we are encouraging putting this biochar back into the soil after it is added to composted humanure.
Biochar the not only makes the best fertilizer in the world, it lowers the CO2 level in the air reducing Green House effects.
Biochar works like a sponge that holds moisture, nutrients and microorganisms that are essential for processing waist for plants to absorb.
To utilize this biochar the absolute best way is to add it into compost!
By putting it into a composting toilet the carbon acts as a filter and helps get rid of the smell. This carbon which is porous holds moisture and micro-oganisms that makes the best soil in the world.
Another way to get additional carbon sequestion:
Terra Preta Sanitation (TPS) is a low-cost dry sanitation system based on urine diversion and the addition of charcoal to the system that produces lasting and highly fertile soils with properties similar to the recently discovered manmade Terra Preta (black soil) in the Amazon region. Through natural processes of lacto-fermentation (silage) and vermicomposting fecal material is converted into Terra Preta like soils that can be utilized in (urban) agriculture and also act as a carbon sink. In the TPS system urine and feces are collected in 2 separate compartments. Urine is collected in a jerrican that contains a microbial mix and the feces fall by gravity into a bucket that is placed airtight underneath the toilet bowl to allow for anaerobic conditions in the bucket. After each defecation a mix of charcoal powder together with a finely cut wood source and some limestone or volcanic soil needs to be added to cover the feces. In addition a few dashes of the lacto-bacilli containing microbial mix should be added. Left under anaerobic conditions a lacto-fermentation process will be initiated inside the bucket. Unlike in anaerobic digestion no methane is produced and no odor will occur in the bucket, which makes it particularly interesting for larger scale indoor application in urban areas. The toilet lid needs to be closed after each use to provide as anaerobic conditions as possible. The occasional opening of the lid during the use will not significantly affect the process. As soon as the bucket is full it will be put aside, closed and stored for around 1 month to let the lacto-fermentation fully take place. It will then be subjected to a vermicomposting process. The final product is a Terra Preta soil with a high organic carbon content that allow for a long lasting fixation of essential nutrients, water retention and reduced leaching of nutrients from the rhizosphere.