Methanization
Whether you’re dealing with agricultural, territorial, industrial, residual household waste, or DWTP sludge biogas plants, Ovive offers support for two effluents — biogas and digestates. We have also long offered this same support for another type of biogas plant: NHWSF
More than 300 units use Ovive HF in France
Due to the nature of the inputs, biogas can contain high levels of H2S that must be reduced for cogeneration or even eliminated completely for injection into a natural gas network.
Ovive offers a range of products formulated from iron hydroxides for treatment at the source (powdered reagent in the biogas plant) or downstream (granular filtration).
Biogas H2S Products
Some anaerobic digestion projects are equipped with post-treatment of the digestate, with the following objectives :
- a pre-treatment before discharge to the network
- concentration of the agronomic value in a reduced volume (the concentrate)
- discharge into the natural environment
Ovive offers different configurations of membrane bioreactors to achieve these objectives:
- Biological treatment with Membrane Bioreactor high load then nitrogen and phosphorus conservation by reverse osmosis or nanofiltration
- Biological treatment with Membrane Bioreactor low load for discharge to the network or to the natural environment
Agricultural waste biogas plant in Plougar (29)
Construction of a digestate treatment plant:
- Biological treatment with Membrane Bioreactors MBR and polishing by nanofiltration
- Maintaining the agronomic value in the concentrate
Agricultural waste biogas plant in Obernai (67)
Treating H2S from Biogas :
- Providing FDS
- Filter rental
| Parameters | Input | Discharge |
| COD - mg/l | 30 000 | 2 000 |
| NGL - g/l | 4 000 | 1 |
| Flow rate - m3/hr | 2 |
| Parameters | Input | Discharge |
| H2S - ppm | 300 | 20 |
| Flow rate - Nm3/hr | 100 |
