Last Updated on July 17, 2023 by Naomi Nimu
If you’re a homeowner or looking to build a new home or house, you know how important it is to have an efficient and environmentally friendly waste management system or biodigester in Kenya.
Biodigesters are the Best Alternatives to Septic Tanks in Kenya Now
Biodigesters are becoming an increasingly popular option for households in Kenya because of their many benefits. In this biodigester guide, we’ll take you through the basics of what a biodigester is, how it works, the benefits of installing one in your home, its various components or biodigester septic tank design, biodigester sizes, and its costs.
So, let’s get started and learn how a biodigester in Kenya can transform your home or rental space into an eco-friendly and sustainable living space.
What is a Bio Digester?
A biodigester septic tank is a type of tank that we construct with 2 chambers for the inlet and the other for digestion. A bio digester in Kenya utilizes bacteria to break down kitchen and human waste, thereby eliminating the need for frequent septic tank emptying.
Anaerobic Digestion Takes Place in Biodigester in Kenya
This technology works by creating an environment where microorganisms break down waste materials completely into a clean liquid.
The bio digester septic tank that we construct is airtight hence no oxygen enters and the anaerobic bacteria are able to thrive well and break down waste matter in these conditions.
How Does a Biodigester Work?
It is worth noting that we install a biodigester next to the last manhole which can be installed for homes, schools, residential houses, commercial properties, for restaurants, just to name a few.
Like I mentioned before, the bio-digester septic tank uses bacteria to completely break down waste. The anaerobic bacteria use waste or organic material as their source of food in the absence of oxygen.
Our Biodigester is Completely Sealed or Air Tight
We completely seal the biodigester to create an anaerobic environment that allows the microorganisms to break down the organic material.
The Benefits of Installing a Bio Digester Septic Tank in Your Home
The benefits of installing a bio digester septic tank in your home are numerous.
Has no Odor
Firstly, a bio digester tank does not produce any odor. This is because the waste is completely broken down by bacteria and converted into water. This eliminates the unpleasant smells that are often associated with traditional septic tanks.
A Biodigester Septic Tank Does not fill UP-No need for Exhauster Services
Secondly, a bio digester septic tank does not fill up since the waste is completely broken down. This means that you do not need to empty the tank periodically or you don’t need exhauster services, which is an expensive and time-consuming process.
Are Environment Friendly
Another significant benefit of installing a bio digester septic tank in your home is its environmental friendliness.
Bio digesters use a natural process to treat wastewater, which means that they produce fewer harmful pollutants than traditional septic tanks. Additionally, bio digesters can help to conserve water by recycling greywater for use in irrigation and other applications.
A Biodigester in Kenya is Cheaper to Install
One of the most significant advantages of installing a bio digester septic tank is its cost-effectiveness. It is cheaper to install since it costs around 80,000 for the smaller one, while a traditional septic tank costs around 150,000.
Biodigester Septic Tank Design-Components of a Biodigester
The biodigester septic tank design in Kenya comprises several parts or components, including a manhole, a biodigester septic tank, and a soak pit.
1. A Manhole
The first component of a biodigester system is the manhole. This is a central place where pipes bringing kitchen and toilet waste meet before being directed to the biodigester.
2. The Biodigester Septic Tank
The second component of the biodigester system is the biodigester septic tank. This tank is divided into two parts: the inlet chamber and the digestion chamber.
The inlet chamber receives the wastewater from the manhole and directs it to the digestion chamber.
The digestion chamber is where the real action happens in the biodigester system. Here, the wastewater is digested by bacteria to produce nutrient-rich water.
3. The Soak Pit
The third component in the biodigester septic tank design is the soak pit. This is a small, covered pit that is constructed to direct the treated water from the biodigester septic tank for seepage into the soil.
The treated water, which is now free of waste and rich in nutrients, can be used to irrigate plants or recharge the groundwater. The soak pit helps to prevent pollution of the environment and provides a sustainable way of disposing of wastewater.
In summary, the biodigester system comprises three main components: the manhole, the biodigester septic tank, and the soak pit. Each component plays a vital role in the efficient functioning of the system.
The manhole provides access to the pipes and prevents the entry of solid waste. The bacteria inside the biodigester septic tank digest the organic waste to produce treated water.
Then the soak pit directs the treated water for seepage into the soil, providing a sustainable way of disposing of wastewater. With these components working together, the biodigester system offers a sustainable and eco-friendly way of managing household waste.
Biodigester Septic Tank Price in Kenya and their Sizes
The price and size of biodigesters and septic tanks in Kenya are important factors to consider before installing a waste management system for your home or rental spaces.
The cost will depend on the number of users or the size of the system required for efficient waste disposal. It’s essential to choose the right size and type of system to avoid future problems and ensure efficient waste management.
Prices Vary Depending on the Number of Users
- 80,000 kshs for 1 to 40 users
- 150,000 kshs for 40 to 100 users
- 250,000 Kshs for 100 to 200 users
- 350,000 kshs for 200 to 300 users
The price of a biodigester septic tank in Kenya will vary depending on the size or the number of users of the system. For instance, a biodigester suitable for 1 to 40 users costs around 80,000 Kshs.
If the number of users increases to 40-100, the price for the system will increase to approximately 150,000 Kshs. For buildings with 100 to 200 users, the cost will be around 250,000 Kshs, and for those with 200 to 300 users, it will cost around 350,000 Kshs.
A Smaller System May Be Suitable For a Residential Home
The size of the system is a crucial factor to consider when installing a bio digester septic tank. A smaller system may be suitable for a residential home, while a larger system may be necessary for commercial buildings, schools, or hospitals.
It’s important to note that the size of the system will also affect the cost, with larger systems costing more than smaller ones.