Techno-Economic Analysis of Methane Production from Pulp and Paper Sludge-Reference-Cited by-同舟云学术

Techno-Economic Analysis of Methane Production from Pulp and Paper Sludge

Published:2024-07-09 Issue: Volume:3 Page:750-756
ISSN:2818-4734
Container-title:Systems and Control Transactions
language:
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Author:

Hosseini Erfan¹,Cremaschi Selen¹,Jiang Zhihua¹²

Affiliation:

1. Department of Chemical Engineering, Auburn University, Auburn, AL, US

2. Alabama Center for Paper and Bioresource Engineering, Auburn University, Auburn, AL, US

Abstract

This study investigates the feasibility of valorizing pulp and pulp sludge (PPS) into methane through anaerobic digestion (AD) with a focus on techno-economic analysis (TEA). Three scenarios are evaluated: (A) the base case, (B) sludge AD with alkaline pretreatment using green liquor dregs (GLD), and (C) co-digestion with nitrogen-rich feedstocks. The evaluation is applied to a common PPS, consisting of 70% primary sludge (PS) from the primary clarifier and 30% secondary sludge (SS) from biological treatments from a kraft mill. Theoretical methane potential (TMP) is determined using the Buswell equation. The study highlights the significance of co-digestion with nitrogen-rich feedstocks in enhancing the economic viability of the AD process for PPS, providing valuable insights for sustainable waste management and resource recovery in the pulp and paper industries.

Publisher

PSE Press

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