Part B: Advances in gas emission control techniques for anaerobic-based STPs Technical Note 6 – Energetic use and burning of waste gas-Reference-Cited by-同舟云学术

Part B: Advances in gas emission control techniques for anaerobic-based STPs Technical Note 6 – Energetic use and burning of waste gas

Published:2021 Issue:2 Volume:1 Page:77-90
ISSN:2764-5576
Container-title:Cadernos Técnicos Engenharia Sanitária e Ambiental
language:
Short-container-title:Cad. Téc. Eng. Sanit. Ambiente.

Author:

Brandt Emanuel Manfred Freire¹,Mora Erick Javier Centeno²,Santos Juliana Mattos Bohrer³,Chernicharo Carlos Augusto de Lemos⁴

Affiliation:

1. Universidade Federal de Ouro Preto, Brazil

2. Universidade de Costa Rica, Costa Rica

3. Universidade Federal de Juiz de Fora, Brazil

4. Universidade Federal de Minas Gerais, Brazil

Abstract

The techniques for controlling gaseous emissions in anaerobic-based STPs studied in this collection of Technical Notes (TNs) are based on the desorption principle of dissolved gases (e.g. CH4 and H2 S) in anaerobic effuent, through their transfer to a waste gas. The waste gas must be properly managed, for example through its degradation/ oxidation in biofilters (TN 5). This TN considers other approaches to manage the waste gas: (i) its energetic use mixed with biogas; and (ii) its use as a comburent in the burning of biogas. Through mathematical models, the operating conditions of the desorption systems required for both options were established. For option (i), values of the gas / liquid ratio (QG /QL in the desorption system) in the range of 0.03-0.10 are necessary, leading to an increase in the energetic potential in the range of 18 to 58%. For option (ii), it was determined that favourable conditions of biogas production are necessary, along with QG /QL values of less than 2.5.

Publisher

Zeppelini Editorial e Comunicacao

Reference12 articles.

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