Technology for N recovery as microfiltered slurry/digestate/sludge starting from raw slurry/digestates/sewage sludge with microfiltration system (ID:275)

Input material
livestock slurry, digestates, sewage sludge
Output product
microfiltered digestate
Processing capacity
Working capacity is estimated between 5 and 10 m 3 /hour. But it depend on farm organization. Indeed it can also be used in small farms treating few tons per days (<10 t/day).
Technology Status
Advanced development stage
Keywords
digestate
microfiltration
nutrient recovery
microfiltrated digestate
Technology description

The purpose  of the treatment is to obtain a microfiltered phase of the digestate (or livestock slurry or sewage sludge), with particles smaller than a few microns (usually 25-50 microns), so that it can be used in mixture with irrigation water even in irrigation systems with drippers or small nozzles. By-products of the treatment are a solid palable fraction and a dense fraction but the largest proportion of the raw digestate becomes microfiltered phase (both in weight and volume). Electric current for separation and microfiltration of digestate is almost 25-30 A. No water is used in the digestate treatment. Microfiltered digestate is then injected in the irrigation water line and distributed by means of drip lines. This permits to save water and energy compared with the usual sprinkler irrigation.

Basic information

Vendor:
Country:
Italy
Technology main category:
Physic-chemical nitrogen recovery from manure, digestate and wastewaters: separation, stripping and membrane processes
Technology subcategory:
Membrane filtration

Languages

Summary:

Technologie zur N-Rückgewinnung als mikrofiltrierte Aufschlämmung/Gärrest/Schlamm ausgehend von Rohschlamm/Gärresten/Klärschlamm mit Mikrofiltrationssystem.

Abstract:

Unterlagen:

Unterlagen:

Summary:

Technologie de récupération d’azote sous la forme de suspension microfiltrée / digestat / boue à partir de lisier brut / digestats / boues d'épuration avec un système de microfiltration 

Abstract:

Documents:

Documents:

Summary:

Tecnología para la recuperación de N en forma microfiltrado de fangos, digestatos y lodos de EDAR  procedentes de fangos, digestatos y lodos de EDAR  crudos mediante un sistema de microfiltración. 

Abstract:

Documentos:

Documentos:

Summary:

Tecnologia per il recupero di N come liquami/digestati/fanghi microfiltrati a partire da liquami/digestati/fanghi di depurazione mediante un sistema di microfiltrazione

Abstract:

Documenti:

Documenti:

Summary:

Technologie voor N-terugwinning uit ruwe drijfmest/ digestaat / rioolslib met productie van microgefiltreerde drijfmest/digestaat/slib d.m.v. een microfiltratiesysteem 

Abstract:

Documenten:

Documenten:

Summary:

Technologia odzyskiwania N w postaci mikrofiltrowanej zawiesiny / pofermentu / szlamu, zaczynając od surowej gnojowicy / pofermentów / osadu ściekowego z systemem mikrofiltracji

Abstract:

Dokumenty:

Dokumenty:

Summary:

Mikroszűrt iszap / fermentált anyag / iszap N-kinyerés technológia szennyvíziszapról mikroszűrő rendszer eljárással

Abstract:

Dokumentumok:

Dokumentumok:

Find out more

Practice Abstract:
Info sheet: