First Name:
Maria Antonietta
Last Name:
Dessena
Type of BP
Technical solution
Typology of Non- Conventional Water Resources (NCWR) What kind of NCWR do you deal with ?:
Black Water (BW)
What are the challenges raised by your Best Practice?
Difficult access to water, Water for irrigation and food production is not available, Poor quality of treated water
How could you describe your Best Practice?
The experimental activity aims to verify the potential of the membrane gas extraction technique for the recovery of high-purity concentrated ammonia solution from the centrate of an anaerobic digester for the treatment of manure produced in the plain of Arborea (Italy). The plain is a very extended area devoted to intensive cattle farming and agricultural activities and represents an excellence in the Sardinian agro-livestock system. Due to the intensive agricultural practices the plain of Arborea is a Nitrate Vulnerable Zone.
The chemical-physical quality of the digestate, analyzed during the experimentation, showed a high content of ammonia nitrogen present in the digestate compatible with the stripping removal technique.
The principle of the technique is to apply a difference in vapour pressure for ammonia over a hydrophobic gas permeable membrane to transfer gaseous ammonia from the feed digestate solution into a stripping solution in order to produce concentrated ammonium sulphate which can be used as a fertilizer.
The results showed that about 93% of ammonium content in the digestate solution could be transferred to the acid stripping solution.
About 54% of the nitrogen (the rest of 11% was organic nitrogen) present in the digestate is found in ammonia form, which is the fraction more dangerous of the total nitrogen that can be eliminated using this technology.This application is the first in Italy on the livestock manure.
The chemical-physical quality of the digestate, analyzed during the experimentation, showed a high content of ammonia nitrogen present in the digestate compatible with the stripping removal technique.
The principle of the technique is to apply a difference in vapour pressure for ammonia over a hydrophobic gas permeable membrane to transfer gaseous ammonia from the feed digestate solution into a stripping solution in order to produce concentrated ammonium sulphate which can be used as a fertilizer.
The results showed that about 93% of ammonium content in the digestate solution could be transferred to the acid stripping solution.
About 54% of the nitrogen (the rest of 11% was organic nitrogen) present in the digestate is found in ammonia form, which is the fraction more dangerous of the total nitrogen that can be eliminated using this technology.This application is the first in Italy on the livestock manure.
Please describe your Best Practice in 5 keywords?
water scarcity, alternative water resources,, livestock manure,, fertilizer production, low impact on environmental components
Please provide any links to useful documentations (including website)presenting your Best Practice
In which area has your Best Practice been implemented ?
Agricultural area
Best Practice location implementation (Country)
Italy
Localisation
POINT (8.564567 39.780367)
Please add the date of implementation of your best practice
Who are the beneficiaries and/or the target group of your Best Practice ?
Farmers
f the Best Practice has been implemented within a partnership, who were your partners ?
LP PWEG (Palestine), Governatorate of Jerico (Palestine), CRENoS (UNICA), AWC Aqaba Water Company (Jordan), IRA Institute Region arides (Tunisie)
Have you involved stakeholders?
Yes
Please list them
LP PWEG (Palestine), Governatorate of Jerico (Palestine), CRENoS (UNICA), AWC Aqaba Water Company (Jordan), IRA Institute Region arides (Tunisie)
What are the obstacles to implementation of Best Practice ?
Isuffi cient funding instruments to support solution for NCW, High cost of technological solutions
Did you receive funding for the research and development of the proposed BP?
Yes
Please indicate the source of funding
EU funding
What difficulties you have faced to access the funding ?
This type of funding is linked to a call for tenders and the best projects from both a technical and administrative and communication point of view can receive funding
Has your Best Practice been validated/upscaled?
The project was completed and continued with the installation and management of the plant for the production of ammonium sulphate by stripping the ammonia derived from the bio-digestate of livestock manure, through semi-permeable membranes
Is there the potential to exploit/outscale the Best Practice?
Alternative solutions are already being studied for the pre-treatment given the type of rather coarse wastewater which gives rise to critical processing issues. An ongoing collaboration with an industrial-scale Swiss plant, even if it works on civil wastewater, is also giving some interesting inputs.
Do you have or know any platform of sharing Best Practice that you would like to link to this inventory platform?
No
Does your Best Practice contribute to an innovation? If so, please provide a short description of the innovative component
The experimental activity aims to verify the potential of the membrane gas extraction technique for the recovery of high-purity concentrated ammonia solution from the centrate of an anaerobic digester for the treatment of manure produced in the plain of Arborea (Italy). The plain is a very extended area devoted to intensive cattle farming and agricultural activities and represents an excellence in the Sardinian agro-livestock system. Due to the intensive agricultural practices the plain of Arborea is a Nitrate Vulnerable Zone.
The chemical-physical quality of the digestate, analyzed during the experimentation, showed a high content of ammonia nitrogen present in the digestate compatible with the stripping removal technique.
The principle of the technique is to apply a difference in vapour pressure for ammonia over a hydrophobic gas permeable membrane to transfer gaseous ammonia from the feed digestate solution into a stripping solution in order to produce concentrated ammonium sulphate which can be used as a fertilizer.
The results showed that about 93% of ammonium content in the digestate solution could be transferred to the acid stripping solution.
About 54% of the nitrogen (the rest of 11% was organic nitrogen) present in the digestate is found in ammonia form, which is the fraction more dangerous of the total nitrogen that can be eliminated using this technology.This application is the first in Italy on the livestock manure.
The chemical-physical quality of the digestate, analyzed during the experimentation, showed a high content of ammonia nitrogen present in the digestate compatible with the stripping removal technique.
The principle of the technique is to apply a difference in vapour pressure for ammonia over a hydrophobic gas permeable membrane to transfer gaseous ammonia from the feed digestate solution into a stripping solution in order to produce concentrated ammonium sulphate which can be used as a fertilizer.
The results showed that about 93% of ammonium content in the digestate solution could be transferred to the acid stripping solution.
About 54% of the nitrogen (the rest of 11% was organic nitrogen) present in the digestate is found in ammonia form, which is the fraction more dangerous of the total nitrogen that can be eliminated using this technology.This application is the first in Italy on the livestock manure.