Impacts of river snails rice noodle ingredients addition on the kitchen waste anaerobic digestion performances, microbial communities and metabolic pathways

Biochemical Engineering Journal, Journal Year: 2023, Volume and Issue: 200, P. 109093 - 109093

Published: Sept. 11, 2023

Language: Английский

---

Improved Anaerobic Digestion of Food Waste under Ammonia stress by Side-Stream Hydrogen Domestication

Water Research, Journal Year: 2024, Volume and Issue: 268, P. 122770 - 122770

Published: Nov. 8, 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

---

Impact of sandwich-type composite anodic membrane on membrane fouling and methane recovery from sewage sludge and food waste via electrochemical anaerobic membrane bioreactor

Bioresource Technology, Journal Year: 2023, Volume and Issue: 382, P. 129222 - 129222

Published: May 20, 2023

Language: Английский

---

Non-targeted facilitation of primary sludge anaerobic fermentation by micro-aeration and the simultaneous nutrients transformations

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 491, P. 151930 - 151930

Published: May 5, 2024

Language: Английский

---

Combined semi-continuous feeding and stripping: improving volatile fatty acid production and sulfate reduction in a two-phase anaerobic sulfate reduction system

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 121485 - 121485

Published: March 1, 2025

Language: Английский

---

Advanced performance and operational strategies of partitioned anaerobic membrane bioreactor combined with ferromagnetic biochar for pesticide wastewater treatment at low-temperature and insufficient hydraulic load

Water Research, Journal Year: 2025, Volume and Issue: 282, P. 123761 - 123761

Published: May 9, 2025

Language: Английский

---

Effect of Fe0 particle size on buffering characteristics and biohydrogen production in high-load photo fermentation system of corn stover

Bioresource Technology, Journal Year: 2022, Volume and Issue: 364, P. 128086 - 128086

Published: Oct. 8, 2022

Language: Английский

---

The greenhouse effect of antibiotics: The influence pathways of antibiotics on methane release from freshwater sediment

Environment International, Journal Year: 2023, Volume and Issue: 176, P. 107964 - 107964

Published: May 10, 2023

The impact of antibiotics on methane (CH4) release from sediment involves both CH4 production and consumption processes. However, most relevant studies lack a discussion the pathways by which affect do not highlight role played chemical environment in this influence mechanism. Here, we collected field surface sediments grouped them with various antibiotic combination concentration gradients (50, 100, 500, 1000 ng g−1) under 35-day indoor anaerobic constant temperature incubation. We found that positive effect potential appeared later than flux. Still, high-concentration (500, occurred lag Also, was significantly higher low-concentration 100 incubation period (p < 0.05). performed multi-collinearity assessment biochemical indicators, followed generalized linear model negative binomial regression (GLM-NB) to obtain essential variables. In particular, conducted interaction analysis flux for construction. partial least-squares path modeling (PLS-PM) demonstrated (Total = 0.2579) primarily attributed their (Direct 0.5107). These findings greatly expand our understanding greenhouse freshwater sediment. Further should more carefully consider effects environment, continuously improve mechanistic release.

Language: Английский

---

Enhancing Anaerobic Digestion of Food Waste by Combining Carriers and Microaeration: Performance and Potential Mechanisms

ACS ES&T Engineering, Journal Year: 2024, Volume and Issue: 4(10), P. 2506 - 2519

Published: Aug. 13, 2024

Enhancing the anaerobic digestion (AD) of organic wastes has been a widely discussed topic. This study aims to enhance AD performance by combining microaeration with conductive or nonconductive carriers, using food waste as substrate. The use carriers alone enhanced methane production, and further improved performance. carrier showed significant enhancement microaeration, achieving daily yield 478 ± 11.3 mL CH4/g VS, which was 1.1 1.3 times higher than that control digester, respectively. Furthermore, explored various aspects, including oxidative stress, antioxidant capacity, microbial community structure during digestion. results demonstrated hydrolytic-acidification efficiency promoted direct interspecies electron transfer among syntrophic microorganisms. Methanogenic archaea aggregated on surface formed consortia facultative anaerobes, thereby mitigating stress effects cells enhancing total production. Moreover, metabolomics analysis ATP transport across bacterial membrane, accelerated nutrient conversion, caused changes in metabolites intermediates related glycerophospholipids, amino acids, signal transduction pathways.

Language: Английский

---