Publication detail
Treating wastewater from anaerobic fermentation by means of vacuum evaporation
VONDRA, M. TOUŠ, M. MÁŠA, V. KONEČNÁ, E.
English title
Treating wastewater from anaerobic fermentation by means of vacuum evaporation
Type
conference proceedings
Language
en
Original abstract
Treatment of liquid effluents from anaerobic digestion is one of the central issues of current biogas plants operation. High costs for storage and transportation could be decreased using a suitable technology for nutrient recovery or volume reduction. Vacuum evaporation is an option with the advantage of robust operation and waste heat utilization. This study investigates operational characteristics of multi-stage flash evaporator. As the results suggests, the evaporator can possible reach high volume reduction, but the separated water must be subjected to a further treatment since it contains around 3 000 ppm of ammonia. Ammonia stripping, acid scrubber or reverse osmosis can serve as follow-up technologies. A proper techno-economic assessment must be done to secure feasibility of a project.
English abstract
Treatment of liquid effluents from anaerobic digestion is one of the central issues of current biogas plants operation. High costs for storage and transportation could be decreased using a suitable technology for nutrient recovery or volume reduction. Vacuum evaporation is an option with the advantage of robust operation and waste heat utilization. This study investigates operational characteristics of multi-stage flash evaporator. As the results suggests, the evaporator can possible reach high volume reduction, but the separated water must be subjected to a further treatment since it contains around 3 000 ppm of ammonia. Ammonia stripping, acid scrubber or reverse osmosis can serve as follow-up technologies. A proper techno-economic assessment must be done to secure feasibility of a project.
Keywords in English
biogas plants; liquid digestate; vacuum evaporation; ammonia recovery; anaerobic digestion
Released
12.06.2019
Book
AGRO'2019 - Book of Abstracts
Pages count
2
BIBTEX
@proceedings{BUT162046,
author="Marek {Vondra} and Michal {Touš} and Vítězslav {Máša} and Eva {Konečná},
title="Treating wastewater from anaerobic fermentation by means of vacuum evaporation",
booktitle="AGRO'2019 - Book of Abstracts",
year="2019",
month="June"
}