Click to watch the video below to get an in depth understanding of how biofil biodigesters works.
The remains in the bio tank is the solid waste which is treated in the right environmental conditions where oxygen gets into it created for millions of microorganism and bacteria to further break it down by feeding on it.
This science is nothing new.
Those of us who keep household pets especially dogs can relate to it.
If your dog litters on your compound and the conditions are right, the dogs remains in a weeks time would have disappeared.
Nature has thus been replicated in a Biofil digester in which the effluent filters away very quickly and the solid simply disappears.
The use of locally sourced bio degradable materials means that these biodegradable waste disposal systems are good for the environment.
At DreamHouse Improvement Services, we provide expert solution in toilet waste management through the installation of bio digesters popular known as DreamHouse Bio Digesters.
Call or WhatsApp us today on +233(0)556398805 and +233(0)245424644 for estimates and quotes.
The Government and the World Bank then decided that considering the sanitation situation especially in low income households here in Accra, bio digester toilets were our best bet. This was considered and compare to what Ghana as nation is used to in terms its methods of human solid treatments disposals.
We are used to using septic tanks which is a large holding tank designed to store human waste materials which must be periodically removed from by pumping.
In fact using bio digesters as an integrated toilet waste water management system is nothing new.
In some parts of New Zealand, Samoa Islands and Papua New Guinea these eco-friendly bio digester toilets are used effectively to solve toilet waste water treatment issues and the organic manure that comes out are used to enrich their soil for farming.
This technology has proven to be a better option than traditional foul smelling septic tanks in Ghana.
2. How do bio digesters work?
Bio digesters eliminate toilet waste water odors by over powering the natural occurring bacteria mostly found in septic tanks and man holes.
For example in biofil digesters, the waste water from the flush unit (water closets) is organically filtered through a porous slab, allowed to penetrate a small rock-filled soak hole from which it leaches into the soil.
In places where there are gutters, the black water is organically filtered out of the bottom of the digester and drained into them.
Bio degradable toilet waste digesters have established themselves as the modern day answer to KVIPS, pit latrine and septic tanks as toilet treatment systems in Ghana.
3. Where does the waste water from a bio digester go?
There are a lot of misconceptions around bio digesters as an effective toilet waste water management system.
One of the most asked questions is where does the flushed water from a water closet goes.
Usually people are not sure how such a small box can contain all these water and serve a whole household with out getting full.
But because bio digester toilets are used as part of the process of treating bio degradable toilet waste water and sewage sludge, the process often referred to as aerobic digestion is adopted.
Natural composting organic manure are introduced to treats all organic bio degradable materials through the natural process of aerobic decomposition.
Flushed water and solid waste enter at the top of the DreamHouse bio-digester where immediate separation of solids and liquid contents of the waste occurs.
All liquids will then be organically filtered out of the bottom of the digester and drained into the soil where further and final decomposition occurs.
Other solids (toilet rolls & all degradable cleaning materials) are decomposed and converted into rich & safe soil for easy disposal.
Now the final effluent (waste water) produced is a clear odorless liquid suitable for discharge either into a waste watercourse, through a customized soak hole trenches or a drain filled system.
4. Waste Water Soak Hole Construction
We fill the bottom of the soak hole with a layer of rocks. With each rock about 3” in diameter.
The layer of large rocks we determine how many inches high they should be based on how the depth of the soak hole is.
A typical construction of a soak hole must ensure that the bottom of the soak hole is 2’6” below the bottom of the leachate pipe hole.
The depth of the soak hole from the surface of the ground will depend on the water table for the toilet site.
Regardless of how deep the digester bed hole is, we maintain the bottom of the soak hole at the above given specifications.
5. What Becomes Of The Solid Waste In A Bio Digester?
Because the bio digester is a simple compact onsite organic waste treatment system it essentially uses a biological filter consisting of a fiber, medium of black soil and in some cases porous concrete. The bacteria and other organisms generated through this technology then bio degrades solid waste.
So for the lay person the immediate question that comes into mind is “what becomes of the human remains in a bio digester and how does it look like”?
When the digesters get the maximum per day uses, it will take at least 5 years and as much as 15 years in some cases for the toilet waste box to get filled up and ready for dislodging which involves scooping out the human remains (manure) with a shovel for easy disposal.
The solids waste and human waste remains are harvested as pure compost which can be used for agricultural purposes after years of usage. The harvesting time depends on the number of users in a given facility and type of soil on which the bio digester was installed.
This is totally new to what we have been accustomed to over the years whereby a tanker shows up to collect solid waste which often find its way into the sea.
In highly developed countries, the process is used for industrial or domestic purposes to manage waste and reduces the emission of landfill gas into the atmosphere.
6. Reasons why people choose bio digester toilets in Ghana
Even though bio digester toilets cost has come up lately for public discussions, there’s no doubt they have become the choice for most home owners in Ghana today.
Whiles there are no concrete research available that shows the exact percentage currently adopting these waste water treatment method, there is no doubt that they are effectively helping to help improve the sanitation situation in most homes.
7. Cost less to install
They are cheaper to install (as compare to digging a manhole or buying culverts for septic sewage tanks).
Even the idea of digging all those feet’s and doing all those concrete works makes bio digesters your best bet any day.
8. Eco friendly technology
Bio digesters are the most environmentally safe and highly improved means of treating toilet waste water in Ghana today.
The use of locally sourced materials means that they are safe for the environment
They are easy to maintain and do not come at any additional cost to the home owner.
9. No more dislodging
There have been some misconception about this saying.
But what we are simply saying is that with DreamHouse bio digesters, you don’t need a typical truck to show up saying they are there to empty your tank.
Because digesters uses an aerobic digestion process, solid waste after a cycle (which usually last between 5 to 8 years) changes into sand (manure) which can easily be disposed of at your backyard.
As a result, no septic sludge is stored and as a result the bio digester product has a unique ‘odour free’ operation guarantee.
10. Ground water not affected
Water is directed into top soils where microbial activities are most active.
Nutrients are removed by soil bacteria decomposition.
Digesters are designed above ground and typically has no more than a week of decomposed contents in them.
11. Internationally approved
Not only do bio digester toilets in Ghana have governmental approval (you can check from the nearest District Assembly), they have also received worldwide acceptance by the World Bank.