Farm Slurry Management System

Ekogea’s unique Farm Slurry Concentrator Process is a natural, organic, and sustainable solution to treating raw farm slurry, turning it into a valuable asset for farmers.

How The System Works

There are three elements to Ekogea’s unique Farm Slurry Concentrator Process:

The raw farm slurry is passed through a standard screw press;

The remaining slurry then passes through the Farm Slurry Concentrator where most of the water (85% by volume) is separated from the concentrated solid.

The remaining water is passed through a H2E treatment plant and either used on the farm or discharged to land under an EA permit.

THE FULL PROCESS EXPLAINED

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Making an Income from Slurry

If the Farm is unable to spread the farm slurry to land, the resulting pressed and concentrated slurry (circa 15% by volume) is a valuable feedstock for Anaerobic Digestion Plants:

Standard raw pig slurry produces up to 15m3 of Biogas per tonne of raw material;

Once concentrated, the processed slurry produces up to 125m3 of Biogas per tonne;

While the phosphate and potassium nutrients are retained in the concentrated slurry the processed water retains around 85% of the ammonia of the original slurry.

Ammonia inhibits gas output in Anaerobic Digestion Plants so the concentrated slurry provides a high carbon, low ammonia feedstock, improving Biogas production;

Anaerobic Digestion Plants want a long term, good quality raw material supply and will pay for it;

Farmers want a long term solution to slurry management and more income.

A “Win Win” for everyone!

THE BUSINESS CASE EXAMPLE

A Farm generating around 25m3 of Slurry per day could make the following annual saving (p.a.);

Income from selling concentrated slurry to AD Plant

£16,000

Savings from spreading to land

£45,600

Total Potential Annual Saving

£61,600

Less estimated operating costs for Concentrator

(£29,800)

Net Annual Saving to Farm (estimate only)

£31,800

There may be additional savings on capital spend where, for example, a lagoon does not have to be extended.

*Please note that these figures are an illustration only and based on a farm processing 1m3 per hour through the Concentrator and receiving and income of £15 per m3 for concentrated slurry. Costs of spreading slurry to land will vary by Farm and are an estimate only.

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The Concentrator Process

If the Farm is unable to spread the farm slurry to land, the resulting pressed and concentrated slurry (circa 15% by volume) is a valuable feedstock for Anaerobic Digestion Plants:

Raw slurry is pumped through a screw press to get rid of larger material and solid matter (circa 5% by volume) and is stored, awaiting the concentrated slurry;

The separated liquid is pumped to the Slurry Concentrator;

This further separates the liquid retaining around 99% of suspended solids as concentrated slurry (circa 10% by volume);

This is combined with the screw press solid and either used as fertiliser on the farm or transported to an AD Plant as a high yielding feedstock;

The processed water (circa 90% by volume) flows to the H2E plant to be cleaned for discharge.

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The H2E Waste Water Process

Concentrated processed water is piped to Ekogea’s H2E plant under gravity (or pumped)

The Farm obtains the EA permit to process the water

The addition of Ekogea’s BioComplex 400 seeds the plant and increases the level of microbes in the water;

As water flows through the H2E plant, the microbes strip out ammonia and suspended solids to comply with the EA discharge permit;

Ekogea’s BioComplex 400 is added at regular intervals to the H2E plant. The amount added depends on the level of contamination in the water.

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Removing the Farm Phosphate Issue

As Ekogea’s Concentrated Slurry has a value to Anaerobic Digestion Plants, it no longer needs to be spread to land. As the concentrated solid retains the majority of the P & K nutrients, the phosphate is exported to the AD Plants who have the resources to deal with it more easily.

 

This enables Farms to comply with the Government’s Clean Air Strategy and Environment Agency’s RPS 252 guidance on spreading farm slurry to land.

*Please note that the concentrated slurry does not add to the phosphate issue for AD plants as the slurry just replaces other ‘phosphate rich’ feedstocks.

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Download the Farm Slurry Management System Brochure

To download the brochure, please fill out the form below with your name, email address, business type and location. You may also wish to leave us a message, although this is optional.


The form will be emailed to you automatically from The Ekogea Team.

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Book Your Place on a Forthcoming Open Day

If you would like to attend one of our forthcoming Open Days to view the Farm Slurry Concentrator performing in a practical setting, please fill in the form below, including your preferred dates and contact details.

UPCOMING DATES

AUGUST 2023

Tuesday 1st August – Denbighshire, UK

Wednesday 2nd August – Devon, UK

Tuesday 8th August – Devon, UK

Tuesday 15th August – Devon, UK

Tuesday 22nd August – Devon, UK

BESPOKE DATES FOR GROUPS

Minimum 5 people

If your team or group would like to visit one of our sites in either Devon or North Wales, you can arrange a bespoke date by talking directly with our sales team. Please use the contact form (follow the links in the website footer) to talk to us today.

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