Staff Members - Benha University
Effect of Thermal Pre-treatment and Anaerobic Co-Digestion of Sludge and Waste on Physical Characteristics and Total Organic Carbon Removal
Engineering Research Journal - Faculty of Engineering (Shoubra) • 2022
Publication Information
Authors
Rehab El-hefny; Hanan A. Fouad; Ahmed I. Marie; Ahmed M. Aboulfotoh
Keywords
Digestion; Anaerobic Co-digestion; Sludge, Waste, Total Organic Carbon
Journal
Engineering Research Journal - Faculty of Engineering (Shoubra)
Publisher
Not Available
Volume
51
Issue
3
Pages
98-104
publication.type
Local
Paper Link
Open Link
Supplementary Materials
Ahmed Ismail Marei Ali _ERJSH_Volume 51_Issue 3_Pages 98-104.pdf
Abstract
A biogas potential test was used to study the physical characteristics and Total Organic Carbon (TOC) removal
ratio caused by the anaerobic co-digestion (AcoD) of thermally pre-treated waste and sludge. Waste was mixed
with sludge by a ratio of 1:2 (VS based) and the total solids was 11.20%. A fresh inoculum was mixed with the
waste and sludge mixture by a ratio of 1:1 (based on volume). The waste and sludge were heated at 100, 120,
140, 160, and 180℃. Several mixing conditions were used 1) pretreated waste with untreated sludge, 2) untreated
waste with pretreated sludge, 3) pretreated waste with pretreated sludge. These cases are replicated for all
temperatures and compared with the blank reactor. The results indicated that the viscosity of the mixture was
reduced with pretreatment and the optimal removal ratio was obtained in the second case at 140℃. The TOC
removal ratio was 53.902% higher than the blank reactor which was 34.91%.
ratio caused by the anaerobic co-digestion (AcoD) of thermally pre-treated waste and sludge. Waste was mixed
with sludge by a ratio of 1:2 (VS based) and the total solids was 11.20%. A fresh inoculum was mixed with the
waste and sludge mixture by a ratio of 1:1 (based on volume). The waste and sludge were heated at 100, 120,
140, 160, and 180℃. Several mixing conditions were used 1) pretreated waste with untreated sludge, 2) untreated
waste with pretreated sludge, 3) pretreated waste with pretreated sludge. These cases are replicated for all
temperatures and compared with the blank reactor. The results indicated that the viscosity of the mixture was
reduced with pretreatment and the optimal removal ratio was obtained in the second case at 140℃. The TOC
removal ratio was 53.902% higher than the blank reactor which was 34.91%.