NPHarvest bjuder in till filmvisning och frågestund online fredag den 24:e september
20 september 2021, 17:02
Projektet NPHArvest välkomnar till ett öppet lunch-seminarium där de besvarar frågor och funderingar kring deras teknik för kväve och fosforutvining från avloppsvatten.
Så här beskriver de sin process:
"Recovery is based on using calcium hydroxide (Ca(OH)2) to transform ammonium nitrogen (NH4+) to gaseous ammonia (NH3). Ammonia is separated by stripping through a gas permeable hyrdophobic membrane. This solution is passive and does not require external energy. Separated NH3 reacts with an acid to become ammonium salt. Phosphorous that is precipitated forms calcium salts. The process does not require a warm environment so it is suitable for the Finnish environment."
Deltar gör an via zoom, och mer information och länken hittar ni här. (Obs tiden i länken är finsk tid, filmvisningen börjar 12.00 svensk tid)
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