Publication result detail

The Potential for Digestate Thickening in Biogas Plants and Evaluation of Possible Evaporation Methods

VONDRA, M.; MÁŠA, V.; BOBÁK, P.

Original Title

The Potential for Digestate Thickening in Biogas Plants and Evaluation of Possible Evaporation Methods

English Title

The Potential for Digestate Thickening in Biogas Plants and Evaluation of Possible Evaporation Methods

Type

Paper in proceedings (conference paper)

Original Abstract

Rising number of biogas plants (BGP) is associated with a rising amount of digestate, which is a by-product of biogas production. Liquid digestate (LD) is produced in mechanical separation of digestate, and contains valuable nutrients as well as large amounts of water. Treatment of the LD is thus rather expensive for the plant owners. One of the ways to drain the LD and obtain valuable concentrated nutrients is vacuum evaporation. Vacuum evaporation allows to utilize low-potential waste heat which occurs in excessive amounts in BGP. The potential for digestate thickening is further discussed. This paper also compares specific heat consumption and other selected parameters of three types of industrial evaporators, which may be suitable for the LD thickening. Presented results shows that the proposed model of MSF evaporator has the best thermal performance.

English abstract

Rising number of biogas plants (BGP) is associated with a rising amount of digestate, which is a by-product of biogas production. Liquid digestate (LD) is produced in mechanical separation of digestate, and contains valuable nutrients as well as large amounts of water. Treatment of the LD is thus rather expensive for the plant owners. One of the ways to drain the LD and obtain valuable concentrated nutrients is vacuum evaporation. Vacuum evaporation allows to utilize low-potential waste heat which occurs in excessive amounts in BGP. The potential for digestate thickening is further discussed. This paper also compares specific heat consumption and other selected parameters of three types of industrial evaporators, which may be suitable for the LD thickening. Presented results shows that the proposed model of MSF evaporator has the best thermal performance.

Keywords

waste water; digestate; biogas plant; thickening; evaporation; waste heat; thermal performance

Key words in English

waste water; digestate; biogas plant; thickening; evaporation; waste heat; thermal performance

Authors

VONDRA, M.; MÁŠA, V.; BOBÁK, P.

RIV year

2017

Released

01.10.2016

Publisher

Aidic Servizi Srl

Location

Milano, Italy

ISBN

978-88-95608-42-6

Book

CHEMICAL ENGINEERING TRANSACTIONS - VOL.52

ISBN

2283-9216

Periodical

Chemical Engineering Transactions

Volume

52

State

Republic of Italy

Pages from

787

Pages to

792

Pages count

6

URL

http://www.aidic.it/cet/16/52/000.html

BibTex

@inproceedings{BUT130033,
  author="Marek {Vondra} and Vítězslav {Máša} and Petr {Bobák}",
  title="The Potential for Digestate Thickening in Biogas Plants and Evaluation of Possible Evaporation Methods",
  booktitle="CHEMICAL ENGINEERING TRANSACTIONS - VOL.52",
  year="2016",
  journal="Chemical Engineering Transactions",
  volume="52",
  pages="787--792",
  publisher="Aidic Servizi Srl",
  address="Milano, Italy",
  doi="10.3303/CET1652132",
  isbn="978-88-95608-42-6",
  issn="2283-9216",
  url="http://www.aidic.it/cet/16/52/000.html"
}