From waste to water, biogas and organic fertilizer.
We build and maintain wastewater and biogas plants, turn waste into treated water, biogas and organic fertilizer, and supply organic plant and livestock products for higher farm yields.
Reused water and organic fertilizer feed the farm. Farm waste goes back into the biogas plant.
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What are you looking for?
Four kinds of solution from one company. Pick the one that matches your problem.
Wastewater & biodigesters
End exhauster dependence and meet NEMA discharge requirements, with plants sized to your site and serviced after install.
See treatment systems →Biogas plants
Turn manure and kitchen waste into cooking gas. Plants from 4m³ up to 50m³.
Explore biogas →Enzymes & chemicals
Enzymes and bacterial cultures that keep your tank and plant working. Order online.
Shop treatment products →Farming & animal health
Organic supplements and soil products, ordered online from KSh 400.
Shop farm products →From waste to harvest, and back again.
Wastewater and farm waste go in. Energy, clean water and organic fertilizer come out, and feed the next harvest.
Wastewater, sewage and animal manure
Biodigesters, treatment plants and enzymes
Biogas, clean water and organic fertilizer
Crops and livestock, and the cycle starts again
Which system fits your plot?
We size every system to your number of users, your soil and the land you have. These are the four routes.
Bio-septic tank and soak drain
A four-chamber digester feeding a soak drain. Simple to run, with no membranes or control panel to maintain.
Best for: homes, hostels and institutions with enough land and soil that drains.
Learn about BZN →Mechanical treatment plant
Treats sewage where soaking is not an option, such as on black cotton soil.
Best for: plots with poor soil, or a discharge requirement to meet.
Learn about BZM →Compact membrane plant
Ultra-compact and low power. Connects to your existing septic tank or biodigester.
Best for: homes, landlords and small institutions with little space.
Learn about BZMBR Compact →High Occupancy membrane plant
Fully automated plant sized to your daily sewage volume, from 300 people to several thousand.
Best for: hotels, estates, campuses, hospitals and institutions.
Learn about BZMBR High Occupancy →Not sure which one? Send us your plot size and number of users.
Ask for a recommendationSystems running across Kenya
A few projects from our portfolio, with the numbers that matter.
From first call to a system that keeps working
Site assessment
We review your users, land, soil and distance from water sources.
Design and quote
A system sized to your site, with a quote that matches your needs.
Installation
Built and commissioned by our team.
Servicing
Enzyme dosing and routine servicing keep the system working year after year.
What clients say
149 reviews on Google
“The Biozone enzymes and bacterial cultures provided to us have helped us keep the exhauster away for the last two years.”
“Our Biozone biogas plant has been producing enough cooking gas to comfortably take care of our school cooking.”
Enzymes, cultures and accessories
For your biodigester, your livestock, your soil and your biogas stove. Order online.
Find out if your property is a fit.
Tell us about your site. Our engineers will visit, assess your land and soil, and recommend the right system.
Junction of Kahawa Sukari Avenue and Muranga Road, Kahawa Sukari, Nairobi. Mon to Fri 8:30 to 5, Sat 9 to 12.






