| By this means the straw is softened and reduced in bulk, so that a larger quantity can be added before the digester is quite full. |
| His action lasted so long that his digester was filled while his heart was freed of gall. |
| There should also be a small tube or hole covered with a weighted valve to prevent the danger of bursting the digester. |
| However, if the digester solution is too basic, then the acetogenic bacteria population is too low. |
| The boiler or digester is filled with dusted rags, and the requisite amount of alkaline solution added. |
| The rest of the rubbish is placed onto a conveyer belt, urea is added and it is taken to the digester. |
