The performance of a biofilm system, single-stage flexible fibre biofilm reactor (SS-FFBR) treating milk processing wastewater (MPW) is evaluated under various process and operational conditions. The system behavior is analyzed with different biological and physical parameters. Results show that the high COD removal efficiency of 95% is obtained at a low COD concentration of 809 mg/L. However, the COD removal is slightly decreased to 91.7% once the COD concentration incremented to nearly 4000 mg/L. The effect of organic loading rate (OLR) on the SS-FFBR performance is examined as total suspended solids removal efficiency, dissolved oxygen, and turbidity. The SS-FFBR showed considerable performance, so that 89.9% and 89.7% removal efficiencies in terms of COD and TSS removals, respectively, obtained at the highest OLR of 11.7 kg COD/md. TSS removal efficiency of 96.7% is obtained at a low OLR of 1.145 kg COD/md. A linear relationship between the OLR and COD removal rate was revealed. The COD removal rate was incremented from 1.08 to 10.68 kg COD/md as the OLR increased from 1.145 to 11.7 kg COD/md. Finally, the operating system is a promising technique recommended to treat various industrial wastewaters with high OLR.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9866133 | PMC |
| http://dx.doi.org/10.3390/membranes13010037 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Electrolyte reactivity on electrode surfaces for active species formation and Reactive Red X-3B degradation in electrochemical treatment of dyeing wastewater.
J Environ Manage
January 2025
School of Environment Science and Engineering, Donghua University, Shanghai, 201620, PR China; Shanghai Institution of Pollution Control and Ecological Security, Shanghai, 200092, PR China; State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai, 201620, PR China.
The pivotal role of electrolytes such as NaSO and NaCl in electrochemical treatment of dyeing wastewater was investigated by comparing recalcitrant Reactive Red X-3B (RRX-3B) degradation rates, active species formation and intermediates generation in a double-chamber cell. It was found that similar reactive oxygen species (ROS) formed in the anodic chamber are OH and O, in the cathodic chamber is O with different electrolytes, while this is not the case for ROS contribution, RRX-3B degradation kinetic and intermediates. NaCl favored the generation of O, faster decolorization (-N=N- cleavage), and organic intermediates degradation in the anodic chamber.
View Article and Find Full Text PDFEthanol fermentation of tapioca wastewater in anaerobic baffled reactor: Performance evaluation and microbial community analysis.
Bioresour Technol
January 2025
Department of Science of Technology Innovation, Nagaoka University of Technology, Niigata 940-2188, Japan; Department of Civil and Environmental Engineering, Nagaoka University of Technology, Niigata 940-2188, Japan.
Anaerobic treatment of tapioca wastewater has a long processing time. This study aims to evaluate ethanol fermentation as an effective treatment of tapioca wastewater. Simulated tapioca wastewater with an average chemical oxygen demand (COD) of 6900 mg L was treated in a four-column anaerobic baffled reactor for 300 d.
View Article and Find Full Text PDFA solar-powered electrocoagulation process with a novel CNT/silver nanowire coated basalt fabric cathode for effective oil/water separation: From fundamentals to application.
J Environ Manage
January 2025
Xinjiang Key Laboratory of Separation Material and Technology, The Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, 830011, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China. Electronic address:
Electrocoagulation (EC) has proven its high efficiency and environmental sustainability for treating several types of wastewaters. However, the primary drawbacks of the conventional EC process are the suitable electrode materials and the relatively high cost due to the requirement for electric energy. To overcome these practical challenges, this study investigated effective oil/water separation by a solar-powered electrocoagulation (SPEC) process using a novel highly conductive basalt fabric (BF) cathode.
View Article and Find Full Text PDFCyanobacterial phycoremediation: a sustainable approach to dairy wastewater management.
Environ Technol
January 2025
Botany Discipline, School of Biological Sciences and Biotechnology, Goa University, Goa, India.
The dairy industry is a significant sector within the food industries, known for its high-water consumption and consequent generation of dairy wastewater (DWW), which is rich in pollutants like Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD). Improper disposal of DWW poses serious environmental challenges, including eutrophication and highlighting the need for sustainable biological treatment methods. This study investigates the potential of indigenous cyanobacterial strains , , , and for the bioremediation of DWW.
View Article and Find Full Text PDFNitrogen removal from multi-electrolyte saline wastewater via mainstream anammox in warm climate conditions.
J Environ Manage
January 2025
Biological Processes Laboratory (LPB), São Carlos School of Engineering (EESC), University of São Paulo (USP), Av. João Dagnone, 1100, Santa Angelina, São Carlos, São Paulo, 13563-120, Brazil.
Article Synopsis
- High salt concentrations in wastewater present challenges to biological treatment, specifically impacting the anammox process, which has been primarily studied with NaCl.
- This study examined the treatment of multi-electrolyte saline wastewater over 684 days, finding that anammox bacteria adapted well to increasing salinity levels, achieving 84.3% nitrogen removal efficiency at 0.72 wt%.
- The research indicated that while the presence of residual organic matter shifted the metabolic pathway, the anammox process remained dominant, accounting for 83% of nitrogen removal despite changes in bacterial community structure.
Want 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!