[Digestion] Re Digestate as fertilizer

[bennett at frognet.net]

>> The use of digestate for crop fertilizers, is to me the very best
>> option.
>>
>> The material contains all the nutrients required by plant-life as it is
>> made up of the very same ingredients.
>>
>> Laboratory analysis of the spent material confirms this.
>>
>> The main problem with spent digestate is the fiber content. This will
>> create nozzle lock-up on any spray delivery system.

Can't the spent digestate be composted aerobically?  Seems like,
especially if it is mixed with dry fluffy materials, it should compost
aerobically quite nicely.