Mathematical Model-Based Optimization of Trace Metal Dosage in Anaerobic Batch Bioreactors

Bioengineering, Journal Year: 2025, Volume and Issue: 12(2), P. 117 - 117

Published: Jan. 26, 2025

Anaerobic digestion (AD) is a promising and yet complex waste-to-energy technology. To optimize such process, precise modeling essential. Developing complex, mechanistically inspired AD models can result in an overwhelming number of parameters that require calibration. This study presents novel approach considers the role trace metals (Ca, K, Mg, Na, Co, Cr, Cu, Fe, Ni, Pb, Zn) modeling, numerical simulation, optimization process batch bioreactor. In this context, BioModel enhanced by incorporating influence metal activities on chemical, biochemical, physicochemical processes. Trace metal-related are also included calibration all model parameters. The model’s reliability rigorously validated comparing simulation results with experimental data. reveals perturbations 5% parameter values significantly increase discrepancy between simulated up to threefold. Additionally, highlights how additives enhance both quantity quality biogas production. optimal concentrations increased CH4 production 5.4% 13.5%, respectively, while H2, H2S, NH3 decreased 28.2%, 43.6%, 42.5%, respectively.

Language: Английский

---

Polymerized ferric sulfate influences methane production from the anaerobic digestion of pig slurry: Performance and mechanism

Fuel, Journal Year: 2025, Volume and Issue: 389, P. 134296 - 134296

Published: Feb. 12, 2025

Language: Английский

---

Systematic review on the residual chemicals in wastewater treatment sludge: Specifically focusing on the occurrence state and anaerobic bioprocess

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 489, P. 151563 - 151563

Published: April 23, 2024

Language: Английский

---

Enhancing propionic acid production in the anaerobic fermentation of high-strength starch wastewater facilitated by hydraulic retention time and FeCl3 under alkaline pH

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 64, P. 105615 - 105615

Published: June 15, 2024

Language: Английский

---

Intermittent Microaeration Enhanced Anaerobic Digestion: The Key Role of Fe(III)/Fe(II) Cycle and Reactive Oxygen Species

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: April 24, 2025

Microaeration has been reported to improve anaerobic digestion, which is generally attributed increased microbial diversity, but a thorough explanation lacking. In this study, it was found that intermittent microaeration (IMA) supplied an digester could oxidize Fe(II) produced by dissimilatory iron reduction (DIR) form Fe(III)/Fe(II) cycle and generate extracellular reactive oxygen species (ROS) treatment of phenol-containing wastewater. The results showed compared the control group without IMA, removal rates COD phenol 29.54 49.68 percentage points, respectively, daily average methane production 85.44%. slowed down loss (13.97%) released from sludge due lower solubility Fe(III) facilitated •OH generation (1.22 ± 0.04 μM) via Fenton-like reactions. DIR accelerated degradation. Metagenomic analysis revealed abundance methanogens antioxidant enzymes-encoding genes in response oxidative stress significantly IMA control, enabling methanogenesis proceed smoothly under microaeration. This study investigated ROS induced during digestion their roles promoting performance, thereby providing new perspective for optimizing systems with

Language: Английский

---

Comparative investigations on the incorporation of biogenic Fe products into anaerobic granular sludge of different sources: Fe loading capacity, physicochemical properties, microbial community and long-term methanogenesis performance

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 356, P. 120546 - 120546

Published: March 11, 2024

Language: Английский

---

Enhancing Methane Production in Anaerobic Digestion of Food Waste Using Co-Pyrolysis Biochar Derived from Digestate and Rice Straw

Molecules, Journal Year: 2025, Volume and Issue: 30(8), P. 1766 - 1766

Published: April 15, 2025

Anaerobic digestion (AD) is a preferred method for food waste (FW) treatment due to its sustainability and potential production of renewable bioenergy. However, the accumulation volatile fatty acids (VFAs) ammonia often destabilizes AD process, managing digestate byproduct poses additional challenges. This study investigates use co-pyrolysis biochar synthesized from rice straw (DRB) enhance methane efficiency. DRB addition increased cumulative yield by 37.1%, improved VFA conversion efficiency, achieved 42.3% higher NH3-N-removal rate compared control group. The COD-removal was 68.7% throughout process. Microbial analysis revealed that selectively enriched Fastidiosipila Methanosarcina, promoting direct interspecies electron transfer (DIET) yield. These findings highlight DRB’s efficiency support closed-loop resource utilization.

Language: Английский

---

Optimization of synergistic microwave and zero–valent iron co–pretreatment for anaerobic digestion of waste activated sludge

Bioresource Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132568 - 132568

Published: April 1, 2025

Language: Английский

---

Carbon flow, energy metabolic intensity and metagenomic characteristics of a Fe (III)-enhanced anerobic digestion system during treating swine wastewater

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 935, P. 173431 - 173431

Published: May 22, 2024

Language: Английский

---

Activated carbon and anthraquinone-2,6-disulfonate as electron shuttles for enhancing carbon and nitrogen removal from simultaneous methanogenesis, Feammox and denitrification system

Bioresource Technology, Journal Year: 2024, Volume and Issue: 418, P. 131975 - 131975

Published: Dec. 12, 2024

Language: Английский

---