Large-scale industrial and municipal digestion plants are used for biowaste and kitchen waste digestion.
Before digestion, biowaste and kitchen waste have to be treated. This pretreatment includes foreign objects removal, grinding, sieving and homogenisation.
The plant operates day and night. The investment costs may be up to several million dollars. Depending on the input substrate, the pretreatment aggregates have to be engineered and constructed. The hydraulic retention time may vary as a function of the input substrate and the pretreatment. This has a direct impact on the digester volume. Therefore a great deal of knowhow is needed to construct a large-scale digestion plant. |
