In this project, a digesting installation is realized with a total capacity of 1.56 MWe. Besides the ‘normal’ input of a co-digester (cattle manure, chicken manure and corn), the input of the installation consists for a large part of apple pulp. The apple pulp is a waste product of the apple cider production.

The total installation consists of a solid feeding system for solid products and an input for liquid products. In the installation, a high efficiency is realized by applying highly efficient digesters and a combination of main digesters with an after-digester. The total capacity of the installation is approximately 12.500 MWh/year.

The digestate is separated in a thin fraction, which makes it possible to store the thin fraction in a large basin for the winter months, without forming floating layers and sedimentation.

Total utilisation with CO2 Liquefaction

In this project HoSt also developed an installation for biogas upgrading and HoSt delivered a CO2 liquefaction and storage plant. The plant will capture 850 kg/hour CO2 from the off-gas output of HoSt’s membrane upgrade plant, processing 1.000 m3/h biogas. This represents a total utilisation of the biogas production with CH4 sent to grid and CO2 captured for re-use.

Project Milestones

Start Construction March 2011
Startup November 2011

Specifications

Capacity 40.000 tons/year
Input Cattle manure, chicken manure, apple pomace and corn
Digester(s) 2 x 2.281 m³
After-digester(s) 1 x 1.527 m³
CHP(s) 1.560 kWe MWM + FGC
Solid feeding input 2 x 60 m³ mixing/dosing bin with input screws
After-treatment Screw press separator

Biogas upgrading

Capacity 1000 Nm³/hr raw biogas
520 Nm³/hr biomethane
Methane content raw biogas 50-55%
Methane content product gas > 97%
After-digester(s) 1 x 1.527 m³
Efficiency 99,9%
CO2 liquefaction capacity 850 kg/h
CO2 purity >99,7% (food-grade)

Characteristics

  • Plant runs on high organic load (1,56 MWe from 4.560 m³ main digesting volume)
  • Flexible system for various input streams
  • Digestion of apple pomace

More information

Do you want to receive more information about our biogas plants, want to learn more about our anaerobic digestion technology or do you want to know what HoSt can do for you? Don’t hesitate to contact us through info@host.nl or call us on +31 (0)53 – 460 90 80.