Various Types of Biogas Plants
Types of Biogas Plants - Classification types of biogas plants depends upon the plants pattern together with vogue of working.
- Movable type drum plant
- Continuous type plant
- Batch type plant
BATCH TYPE BIOGAS PLANT
Batch type biogas plants are appropriate where daily supplies of raw waste materials materials are hard to last obtained. H5N1 batch loaded digester is filled to capacity sealed together with given sufficient retentivity fourth dimension inward the digester. After completion of the digestion, the balance is emptied together with filled again. Gas production is uneven because bacterial digestion starts slowly, peaks together with so tapers off amongst growing consumption of volatile solids. This difficulty tin overcome past times having minimum to digester so that at to the lowest degree ane is ever inward operation. This employment tin likewise minimize past times connecting batch loaded digester inward serial together with fed at dissimilar times so that adequate biogas is available for daily use. The salient features of batch-fed type biogas plants are:
- Gas production inward batch type is uneven.
- Batch type plants may receive got several digesters for continuous furnish of gas.
- Several digesters occupy to a greater extent than space.
- This type of plants require large book of digester, therefore, initial toll becomes high.
- This found needs improver of fermented slurry to laid about the digestion process.
CONTINUOUS TYPE BIOGASS PLANT
In continuous type biogas plant, the furnish of the gas is continuous together with the digester is fed amongst biomass regularly. Continuous biogas plants may last unmarried stage, double phase or multiple stages. Digestion of waste materials materials inward a unmarried sleeping room or digester is called unmarried phase process, inward 2 chambers or digester is called multi phase process. In double phase process, acidogenic together with methanogenic phase are physically separated into 2 chambers. Thus, the showtime phase of acid production is carried out inward a split sleeping room together with exclusively diluted acids are fed into the minute sleeping room where biomethanation takes place. In unmarried stage, acidogenic together with methanogenic phase are carried out inward the same sleeping room without barrier. These plants are economic, uncomplicated together with piece of cake to operate. These plants are by together with large for pocket-sized together with medium size biogas plants. However, the 2 phase biogas plants are costlier, hard inward performance together with maintenance but they create to a greater extent than gas.
These plants are preferred for larger biogas found system. The of import features of continuous type biogas plants are:
- Gas production is continuous.
- Retention current is less
- Fewer problems every bit compared to batch type
- Small digestion chambers are required
MOVABLE DRUM TYPE PLANTS
This likewise known every bit floating dome type biogas plant. The conventional movable drum type comprises a masonry digester amongst an inlet on ane side for feeding slurry together with an outlet on the other side for removing digested slurry. The gas collects inward a steel gasholder which is inverted over the slurry together with moves upwardly together with downwards depending upon accumulation together with discharge of gas guided past times a primal guide pipe. This movable gas holder is made of steel. The gas holder is painted past times anticorrosive ikon at to the lowest degree ane time inward year. This found helps inward consistent clit per unit of measurement area which tin last adjusted past times regulating weight. The principal drawback of this is that metallic toll is large together with maintenance toll is likewise high. To tackle this employment the scientists receive got created high density polyethylene.
Advantages:
- Constant gas pressure
- No employment of gas leakage
- Higher gas production
- Scum employment is less