Organics,sulfide and nitrogen compounds in industrial wastewater are significant challenges for wastewater treatment. These pollutants could be removed simultaneously from wastewater treatment system using biological technologies. In this study, a heterotrophic denitrifying sulfur bacterial strain HDD1 was isolated from wastewater treatment bioreactor. Strain HDD1 was identified as sp. based on the 16S rRNA gene phylogenetic analysis and physiological characteristics. Acetate and sulfide could be utilized as electron donors and nitrate as electron acceptor for respiration in sp. HDD1. The acetate (300 mg·L), sulfide (200 mg·L) and nitrate (487 mg·L) were completely metabolized and removed within 15 hours. The main product of sulfide oxidation was elemental sulfur as identified by scanning electron microscope and energy dispersive spectrometer. These results suggest that the newly isolated sp. HDD1 could be used for simultaneous industrial wastewater treatment and elemental sulfur resource recovery.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.13227/j.hjkx.201608034 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A Database on Antibiotics and Antibiotic Resistance in Wastewater and Solid Waste from Pharmaceutical Industry Based on a Systematic Review.
China CDC Wkly
January 2025
State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China.
Residual antimicrobial agents in wastewater and solid waste from antimicrobial manufacturing facilities can potentially contaminate environments. The World Health Organization has established technical guidelines for managing antimicrobial resistance (AMR) in pharmaceutical wastewater and solid waste. However, the scarcity of publicly available data on antimicrobial manufacturing processes impedes the development of effective mitigation strategies.
View Article and Find Full Text PDFDevelopment of a High-Throughput qPCR Assay for Detecting Waterborne Protozoa and Helminths Across Different Environmental Media in China.
China CDC Wkly
January 2025
State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China.
Introduction: The establishment of a high-throughput quantification approach for waterborne pathogenic protozoa and helminths is crucial for rapid screening and health risk assessment.
Methods: We developed a high-throughput quantitative polymerase chain reaction (HT-qPCR) assay targeting 19 waterborne protozoa and 3 waterborne helminths and validated its sensitivity, specificity, and repeatability. The assay was then applied to test various environmental media samples.
Smaller sizes of polyethylene terephthalate microplastics mainly stimulate heterotrophic NO production in aerobic granular sludge systems.
Water Res X
May 2025
School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, PR China.
Widespread polyethylene terephthalate microplastics (PET MPs) have played unintended role in nitrous oxide (NO) turnovers (i.e., production and consumption) at wastewater treatment plants (WWTPs).
View Article and Find Full Text PDFAn integrated strategy for sequential nitrite removal and methane recovery: Sludge fermentation driven by nitrite reduction.
Water Res X
May 2025
National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, PR China.
Although the treatment of sludge with free nitrous acid can effectively recover short chain fatty acids, the feasibility of sequential nitrite reduction and methane recovery without acidic pH adjustment is still scarcely studied. Therefore, this study aimed to provide insights into the effect of nitrite at different levels on nitrite reduction and methane production. The results showed that the nitrite concentrations of 100, 200, 400 and 800 mg/L were completely reduced in 1, 2, 2 and 4 days, respectively.
View Article and Find Full Text PDFPickering Emulsions Stabilized by Hybrid TiO-pNIPAm Composites for the Photocatalytic Degradation of 4-Propylbenzoic Acid.
ACS Omega
January 2025
Ugelstad Laboratory, Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway.
Pickering emulsions (PEs) have demonstrated significant potential in various fields, including catalysis, biomedical applications, and food science, with notable advancements in wastewater treatment through photocatalysis. This study explores the development and application of TiO-poly(-isopropylacrylamide) (pNIPAm) composite gels as a novel framework for photocatalytic wastewater remediation. The research focuses on overcoming challenges associated with conventional nanoparticle-based photocatalytic systems, such as agglomeration and inefficient recovery of particles.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!