Related Experiment Video
Updated: Aug 20, 2026

Preparation of Authigenic Pyrite from Methane-bearing Sediments for In Situ Sulfur Isotope Analysis Using SIMS
Published on: August 31, 2017
Unveiling natural aging behavior of biogenic sulfur
Na Zhang1, Haoran Xu1, Ruiyun Ren2
1State Key Laboratory of Urban-rural Water Resources and Environment, School of Eco-Environment, Harbin Institute of Technology Shenzhen, Shenzhen 518055, PR China.
None:
The practical application of biogenic sulfur (bio-S0) in environmental biotechnology is hindered by a limited understanding of its long-term dynamic behavior and its consequent impact on bioavailability. In this study, we systematically investigated the natural aging of bio-S0 over 200 days under outdoor conditions and evaluated its subsequent denitrification performance. Our findings revealed that aging induced progressive fragmentation and detachment of the surface organic coating, leading to enhanced exposure of the sulfur core and significant enrichment of bioavailable polysulfane species at the particle surface, accompanied by a reduction in sulfur crystallinity. These physicochemical changes markedly improved the bioavailability of bio-S0, as evidenced by a more than twofold increase in the nitrate removal rate for the 200-day aged samples compared to fresh ones. Microbial community analysis further demonstrated that aging selectively enriched Thiobacillus (from 60 % to 74 %), indicating a shift towards a more specialized sulfur-oxidizing consortium. This work provides novel insights into the dynamic nature of bio-S0 and offers pre-aging as a cost-effective and operationally simple strategy for enhancing the performance of bio-S0-driven biotechnologies.
More Related Videos
07:16Resin-Assisted Capture Coupled with Isobaric Tandem Mass Tag Labeling for Multiplexed Quantification of Protein Thiol Oxidation
Published on: June 21, 2021
15:19Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor
Published on: October 15, 2015
Related Concept Videos
Sulfur Assimilation
Microbial Corrosion
Biodeterioration
Electrophilic Aromatic Substitution: Sulfonation of Benzene
Acid Mine Drainage
Preparation and Reactions of Sulfides