Forums
New posts
Forum list
Search forums
What's new
New posts
New resources
Latest activity
Trending Threads
Resources
Latest reviews
Search resources
FarmTV
Farm Compare
Search
Tokens/Searches
Calendar
Upcoming Events
Members
Registered members
Current visitors
New Resources
New posts
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Forum list
Search forums
Menu
Log in
Register
Navigation
Install the app
Install
More options
Contact us
Close Menu
Forums
Farm Building and Infrastructure
Renewable Energy
AD digestate storage/spreading costs
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="thesilentone" data-source="post: 867226" data-attributes="member: 6194"><p>-----------------------------------------------------------------------------------------------------------------------</p><p></p><p>If PAS110 is required due to what is classified as waste feedstock, then pasteurisation is required. However, unless front end pasteurisation is carried out, at the back end you have Digestate entering the settlement tank just below 70 degrees C. PAS110 is a UK regulation only. The settlement tank is to help cool the digestate and is BEFORE the separator and requires agitators to avoid settlement . Many factors come into play here, not least the amount of VS still in the DM. New PAS110 regulations have a strict requirement for VS levels, if this is met, then little to no further gas production should take place. </p><p>On farm (holding) feedstocks, no pasteurisation is required, so now we have a question of cost, those being. 1) The cost of sealed covered storage tank which will maintain the N and protect against evaporation v a lagoon 2) The lower cost of a lagoon v potential N losses. 3) All systems should have two digesters due to wash through everytime fresh material is added. 3) The cost of a separator v the cost of the additional liquid storage required. In addition what is the digestate to be used for. (eg: N or soil conditioning or both).</p></blockquote><p></p>
[QUOTE="thesilentone, post: 867226, member: 6194"] ----------------------------------------------------------------------------------------------------------------------- If PAS110 is required due to what is classified as waste feedstock, then pasteurisation is required. However, unless front end pasteurisation is carried out, at the back end you have Digestate entering the settlement tank just below 70 degrees C. PAS110 is a UK regulation only. The settlement tank is to help cool the digestate and is BEFORE the separator and requires agitators to avoid settlement . Many factors come into play here, not least the amount of VS still in the DM. New PAS110 regulations have a strict requirement for VS levels, if this is met, then little to no further gas production should take place. On farm (holding) feedstocks, no pasteurisation is required, so now we have a question of cost, those being. 1) The cost of sealed covered storage tank which will maintain the N and protect against evaporation v a lagoon 2) The lower cost of a lagoon v potential N losses. 3) All systems should have two digesters due to wash through everytime fresh material is added. 3) The cost of a separator v the cost of the additional liquid storage required. In addition what is the digestate to be used for. (eg: N or soil conditioning or both). [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Farm Building and Infrastructure
Renewable Energy
AD digestate storage/spreading costs
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top