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Home SolutionsBiogas & Biomethane Biogas plants for processing fruits and vegetables

Biogas plants 
for processing fruits and vegetables

We convert vegetable and horticultural waste into biogas, heat and electricity. Instead of spending money on disposal, we produce our own fuel for the boiler room or for generating energy.

Without a biogas plant:

  • Waste — a constant search for recycling solutions.
  • Costs for natural gas and electricity.
  • Unpleasant odours and complaints from local communities.
  • High production costs.
  • Loss of potential revenue from pulp and peel.

With this, you get:

  • Waste — a raw material for biogas production.
  • The possibility of replacing conventional fuel with biogas.
  • Reducing environmental risks and ensuring compliance with standards.
  • Lower energy costs — higher margins.
  • Additional revenue from waste thanks to a biogas plant.

When should you contact us?

01

You have a factory producing juices, purées or jams that generates a large amount of waste.

02

You want to generate your own electricity from biogas and reduce your dependence on electricity tariffs.

03

Yoy have seasonal production but want a stable source of energy.

04

You are looking for an effective way to dispose of fruit flesh, peel and pulp.

About raw materials

Vegetable and fruit waste — pulp, flesh, peel, pomace, and substandard produce — can be effectively used as feedstock for biogas production. Factories producing juices, purées, jams, concentrates, or tinned goods generate significant volumes of organic waste with a high content of easily fermentable carbohydrates.

Such waste includes:

  • apple pomace
  • grape press
  • berry waste after pressing
  • tomato processing waste
  • vegetable peelings
  • substandard fruit and vegetables
  • leftover purées or concentrates
  • remaining stock of unsold products that have passed their use-by date

Due to the seasonal nature of raw material availability, co-fermentation is primarily used to ensure the stable operation of a biogas plant, where such waste acts as an excellent co-substrate alongside the fermentation of, for example, agricultural raw materials; furthermore, to enable the longer-term use of this waste, it is ensiled or preserved.

Such solutions ensure a steady supply of biogas throughout the year.

Biogas plants 
for processing fruits and vegetables - photo — pro-energy.com.ua

Would you like to find out how much biogas can be produced from your plant’s waste?

Book a free consultation, and our managers will provide comprehensive information regarding your questions.

Options for collaboration:

  1. Comprehensive turnkey development for the food industry.
  2. Preparation of projects for grant funding (NEFCO, GIZ).
  3. Finding an investor for your raw materials and energy requirements.
  4. Loan schemes with partners.
  5. EPC+O&M contracts — we build, operate and share the profits.

Ways to recoup costs:

  • Replacing expensive fuel.
  • The prospect of becoming a player in the EU energy market.
  • Disposal without fines.
  • The possibility of using heat from the CHP plant in core production.
  • An impeccable reputation as a responsible and sustainable company.

Biogas technologies for fruit and vegetable processing plants

For fruit and vegetable processing plants, we recommend CSTR reactors with pre-treatment of the raw material through grinding and homogenisation. Where there is a large volume of liquid substrates, such as juices or wastewater, UASB reactors may also be used. CSTR ensures stable mixing and a controlled fermentation process even under conditions of variable substrate composition.

An essential step is the organisation of raw material storage (silage or buffer tanks), which helps to balance out seasonal fluctuations and ensure continuous biogas production throughout the year.

The gas is purified to remove H₂S and moisture, after which it is used for power generation (CHP) or, where necessary, upgraded to biomethane.

We integrate all components into SCADA and commercial metering systems, monitoring the supply of raw materials, fermentation parameters, biogas composition and consumption, as well as the production of electricity and heat.

Click on the image to enlarge
Your single partner for effective solutions

A systematic approach
from Pro-Energy

We provide a range of engineering and consulting services for project implementation. From concept to efficient operation of the plant using your raw materials and location.

More about the systematic approach

Our services:

Concept development and feasibility study
Project development and permits
Development of project documentation
Supply of technological equipment
Construction and installation
Start-up and commissioning works
Service maintenance

Biogas projects implemented

Generation of feed-in energy at an agricultural enterprise

Chernihiv region
The plant was put into operation: February 2022
More details
Biogas plants 
for processing fruits and vegetables - photo 1 — pro-energy.com.ua
Project completed

Biomethane plant with a capacity of 750 Nm3/h of raw biogas

Khmelnytskyi region
Year of implementation: December 2023
More details
Biogas plants 
for processing fruits and vegetables - photo 2 — pro-energy.com.ua
Project completed

Biomethane plant with a capacity of 600 Nm3/h of raw biogas

Ukraine, Chernihiv region
Commissioned: 2023
More details
Biogas plants 
for processing fruits and vegetables - photo 3 — pro-energy.com.ua
Project completed

Why choose Pro-Energy?

We are committed to long-term partnerships!

More About us
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Many years of experience

We have been successfully operating in the bioenergy sector since 2014. We have the knowledge, experience and understanding of the specifics of working in the Ukrainian market.

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Unique partnerships

We have reliable partners. Therefore, we can offer solutions that will allow each project to reach its full potential.

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Reliable technologies

We use technologies with 90% availability for stable operation of installations, which guarantees efficiency and return on investment.

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Stable work

We do not leave our customers alone after commissioning the facility. We provide 24/7 technical support and remain available under any circumstances.

More About us

Ready to discuss the implementation of your project?

Leave a request for a free consultation.





    Frequently asked questions

    What types of waste can be converted into biogas?

    A biogas plant processes fruit and vegetable pulp, pomace, peelings, substandard produce, and residues from the production of juices, purées, jams, and tinned foods.

    Is it essential to build a generator? 


    No. It is often more cost-effective to use biogas directly in the boiler room as a replacement for gas or fuel oil. This reduces capital expenditure and speeds up the project’s payback period.

    How can we ensure the continuous operation of a biogas plant under seasonal production conditions? 


    The solution is to ensile the pomace or pulp. We design storage facilities capable of holding raw materials for up to six months.

    What is the biogas yield from 1 tonne of vegetable or fruit waste? 


    On average, 80–120 m³ of biogas from 1 tonne of wet waste. This depends on the composition of the raw material (sugar and fibre content).

    Can biogas be used in combination with natural gas?


    Yes, biogas can be co-fired with natural gas in most industrial boilers.

    How long does a biogas plant last?


    Plants are designed for 20+ years of operation. The equipment is selected taking into account the humid environment and the acidity of the feedstock.

    What type of reactor is best for vegetable waste?


    Vertical CSTR reactors with intensive mixing are optimal. This ensures stable biogas production even when the composition of the feedstock varies.

    Is it necessary to prepare the raw material before feeding it into the reactor? 


    In most cases, mechanical grinding and homogenisation are sufficient. For liquid effluents, buffer tanks with a pumping station are used to balance the load and pH.