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Formation of fertilizers for agriculture through mutual neutralization of industrial waste

Combining waste from wastewater treatment plants with waste from soda production, we will get the perfect raw material to form new soil

Photo of Koldun Victor
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Written by

Lead Applicant Organization Name

Lviv Technological Lyceum

Lead Applicant Organization Type

  • Researcher Institution

Website of Legally Registered Entity

How long have you / your team been working on this Vision?

  • 10+ years

Lead Applicant: In what city or town are you located?


Lead Applicant: In what country are you located?


Your Selected Place: what’s the name of the Place you’re developing a Vision for?

Anywhere where there is a sewage treatment facilities

What country is your selected Place located in?


Describe your relationship to the place you’ve selected.

Our Science and Technology Circle takes a regular and substantial part in the Stockholm Junior Water Prize There, among the organizers and members of the jury, are employees of sewage treatment infrastucture, who constantly asked us to come up with something to dispose of activated sludge that are ocurring in treatment plants. That's what we came up with.

Describe the People and Place: Provide information that would be helpful for an outsider who has never been there and may have no context about this Place to better understand the area.

Virtually all wastewater treatment plants in the world operate on the same technology. Like the chemical plants that work with soda.

What is the estimated population (current 2020) in your Place?


Challenges: Describe the current (2020) and the future (2050) challenges that your food system faces.

Sewage treatment plants are forced to throw away active sludge into the filtration fields, where it would be poisoning groundwater for a wery long time. Similarly, soda producers dispose of their wastewater into landfills, which also poison the surrounding groundwater. Doing so have wery negative effect on total amount of land suitable for agricultural use and such effects would only exacerbate the situation in the future

Address the Challenges: Describe how your Vision will address the challenges described in the previous question.

Both activated sludge and soda wastes contain many substances that could be used as fertilizers for agriculture. But the acidic pH of activated sludge and the alkaline pH of soda waste require them to be spread over a very large area so as not to disturb the natural soil pH. But such disposal is unprofitable in terms of economics and energy and has negative impact on agricultural lands in its vicinity.

High Level Vision: With these challenges addressed, now provide a high level description of how the Place and the lives of its People will be different than they are now.


When we mix activated sludge with soda waste, we will be able to obtain a substrate with the desired pH for the soil by chemical neutralization reactions. Thus, without the threat to the biocphere, we will be able to produce raw fertilised ground suitable for plants in mass, which will make its use cost effective and safe. By doins so we would be able to use our resources in much more cost effective way, decreacing spending on neutralising our negative impact on enviroment and produce resources for agricultural use.

Full Vision: How do you describe your Vision for a regenerative and nourishing food future for your Place and People for 2050?

Global population of all modern cities that have sewage management facilities, which is a basic prerequisite for any modern city.  Soda producers will ship their alkaline waste to sewage treatment plants. There, they will be utilised to be added to the activated sludge, and then it will be shipped to the agricultural producers as a complex fertilizer, while reducing need for specialised landfills for hazardous waste.

How did you hear about the Food System Vision Prize?

  • Email


Join the conversation:

Photo of Eyongetta Njieassam

This IS so mapping and a great idea. But how can the issue of heavy metals from the waste be sorted out through this idea. Because the issue of biomagnification which is the release of heavy metals as waste from industries could make things abut difficult. pls if this is feasible then our collaboration will be good for the use in my fruit and vegetable garden

Photo of Koldun Victor

We work with “ordinary” municipal waste, where the concentration of heavy metals does not exceed sanitary standards. Nevertheless, we also know about the problem with industrial effluents poisoned by chromium or other heavy metals. While participating in scientific and technical competitions, we met two young scientists who work in this direction.

One of them:

He puts finely chopped iron into wastewater. Floats the mixture. With a large magnet, it pulls finely chopped iron out of the water. According to him, all heavy metals are chemically bound to iron grains.


He found in nature previously unknown anaerobic microorganisms that literally eat away all heavy metals from wastewater.

After the holidays, I will definitely try to find them and take off contact.

Photo of Eyongetta Njieassam

I see,.......