Biogas plants

Our traditional expertise stems from the construction of biogas plants for special substrates. These fully automated renewable energy plants are designed and built to customer specifications. The feedstocks range from slaughterhouse waste, landscape maintenance material, agricultural by-products, animal excrement, and even traditional silage.


Biogas plant for cattle manure and silage, Avdira, Greece

 

Greece has set ambitious goals to advance the expansion of renewable energies. Biogas plants are an important pillar of this development, and Novis is pleased to be part of this development.

Novis is planning and building a biogas plant for a farm with cattle breeding and arable land to generate energy from its own cattle manure. Silage is also used to increase yields. The substrate is 100% sanitized before being used as high-quality, organic fertilizer in the field, in accordance with official regulations. The automated plant features an advanced liquid injection system, and all technical components are imported from Germany to ensure the highest quality and reliability.

Project Status: Commissioning

Power: 250 kWel, 30 t/d throughput

Input: Cattle manure, triticale silage, agricultural residues

Main components:

- Solids dosing system with liquid feed

- 1 3,000 m³ digester (expansion of a second tank already planned) for thermophilic operation

- Open lagoon as digestate storage, 4,000 m³

- Pump module

- CHP unit, 250 kWel (second module planned)

- Sanitisation

- Gas storage, 1,040 m³

Biogas plant for slaughterhouse waste in Macchiareddu, Sardinia

 

Sardinia faces a problem with slaughterhouse waste disposal. These are often not disposed of properly, but rather buried.

With the Macchiareddu biogas plant, Novis is making a significant contribution to solving this disposal problem. The plant is designed for a throughput of 30 t/day of slaughterhouse waste. A connected CHP plant generates electricity and heat. The heat is used to sanitize the slaughterhouse waste according to European standards and to heat the digesters. The electricity is fed into the local power grid at the current tariff.

Project Status: Completed

Power: 200 kWel, 30 t/d throughput

Feedstock: Slaughterhouse waste

Main components:

- Sanitization

- 2 digesters

- Digestate storage

- Separator

- Gas storage

- CHP

Biogas plant “Smartmushroom” for mushroom compost in La Rioja

 

The Smartmushroom biogas plant is being built in La Rioja, Spain's largest mushroom growing region. The plant will be fed with mushroom compost (or champost). The process was developed specifically for a large mushroom growers' association. In collaboration with Hamm-Lippstadt University of Applied Sciences, Novis tested which mushroom substrate mixture, along with which co-substrates and additives, achieved the highest biogas yields. The biogas from champost will be used to dry fresh champost. It will then be processed into fertilizer pellets. Novis has developed a fully containerized, prefabricated plant specifically for the project, which can be flexibly assembled from individual containers.

Construction started: November 2019

Commissioning: January 2020

Capacity: 100–150 kWth

Feedstock: Mushroom compost, co-substrates

Main components:

- Hydrolysis

- 2 digesters

- Digestate storage

- Separator

- Dryer with heat recovery

- Gas storage

Nine biogas plants for school kitchens in Côte d'Ivoire

 

The Ivorian city of Bouaké is plagued by many problems typical of Central Africa. To actively support its partner city, the city of Reutlingen turned to the company Novis. The goal: to improve local living conditions. As part of the ongoing project, nine biogas plants are being built at elementary schools in the city to generate clean cooking gas from the large quantities of biological waste available. The engineers are looking beyond the actual plant and are constructing a substrate storage facility, a wastewater treatment plant, and implementing an operator system. Above all, Novis is conducting educational work to establish this promising technology in tropical Africa.

Start: 2017

Substrate: Household organic waste, restaurant waste, market waste

End product: Biogas for cooking, solid fertilizer

Goal: Replace firewood with biogas in school kitchens

Novis Services:

- Complete planning and project management

- 50 m³ digester with mechanical agitators

- Constructed wetland system

- 10 m³ gas storage with infrastructure

- Knowledge transfer and system support

- Cooperative planning and implementation on site

Biogas plant for 100% sheep manure in southern France

 

The Grimal biogas plant in the Aveyron province of France is one of the most technically sophisticated biogas plants ever built. It is operated exclusively with sheep manure. To achieve this, technologies such as substrate conditioning and digestate concentration are used. The process, specially developed for the customer, was previously tested in the laboratory for several months and has now proven its worth in practice for several years.

Start: January 2015

Power: 250 kWel

Feedstock: 6000 t/a sheep manure

Main components:

- Hydrolysis 100 m³

- Fermenter 1000 m³

- Secondary fermenter 900 m³

- Vacuum evaporator