We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Tetrabromobisphenol A (TBBPA) generation and removal paths analysis in printed circuit board (PCB) industrial wastewater: Lab-scale investigations
AI summary Read the abstract
This study analyzed the generation and removal pathways of tetrabromobisphenol A (TBBPA) in industrial wastewater from printed circuit board manufacturing. Lab-scale experiments characterized TBBPA sources and its fate in wastewater treatment processes.
With the rapid development of printed circuit board (PCB) industry, the problem of the release of tetrabromobisphenol A (TBBPA) during PCB manufacturing processes was recognized and harmful to the receiving water body. In this study, TBBPA generation paths, fates in industrial wastewater in the PCB manufacturing processes were analyzed. Gas chromatograph-mass spectrometer (GC-MS) scanning results showed that the raw materials including solder mask ink, character ink and dry film mainly contained TBBPA. The PCB fabrication procedures, mainly including development, etching, stripping of inner layer manufacturing process, and pattern plating, tin-plating of outer layer manufacturing process, and development during the forming and surface treatment process would introduce TBBPA into wastewater. Flocculation and activated sludge process (ASP) that were commonly used for industrial wastewater treatment were selected to assess their removal capability for TBBPA in the wastewater, both which could remove more than 80% TBBPA. Low pH below 7, increased PAC and PAM dosages, and proper dosing during the slow-stirring stage could enhance the TBBPA removal of flocculation-sedimentation process. The ASP removes TBBPA mainly by the path of adsorption. High activated sludge concentration, low pH, medium-temperature and limited competitive adsorbates (NH4+, Cu2+) were beneficial to remove TBBPA by the ASP.
More Papers Like This
Tetrabromobisphenol A (TBBPA) degradation in anaerobic biosystems: from bioengineering to meta-omics
AI summary Read the abstract
Researchers investigated the anaerobic biodegradation of tetrabromobisphenol A (TBBPA), a brominated flame retardant used in plastics and electronics, through a series of bioengineering and meta-omics experiments, developing sensitive analytical methods and characterizing the microbial communities responsible for reductive debromination to improve treatment of TBBPA-contaminated effluents.
A Review on Tetrabromobisphenol A: Human Biomonitoring, Toxicity, Detection and Treatment in the Environment
AI summary Read the abstract
This review summarizes the current evidence on tetrabromobisphenol A (TBBPA), a flame retardant chemical found in consumer products that acts as an endocrine disruptor. Researchers compiled findings on how TBBPA has been detected in human samples and various environments, along with its toxic effects on hormone systems. The review highlights that research on TBBPA exposure routes, detection methods, and treatment technologies is still in early stages and needs further development.
Insights into removal mechanisms of bisphenol A and its analogues in municipal wastewater treatment plants
AI summary Read the abstract
Researchers critically reviewed how bisphenol A (BPA) and related compounds are removed in municipal wastewater treatment plants, finding that sludge adsorption plays a key role but that newly produced BPA from degrading microplastics in wastewater complicates removal and may explain why real-world performance deviates from theoretical predictions.
Sorption of tetrabromobisphenol A onto microplastics: Behavior, mechanisms, and the effects of sorbent and environmental factors
AI summary Read the abstract
The sorption of the flame retardant tetrabromobisphenol-A (TBBPA) onto four types of microplastics — polyethylene, polypropylene, polystyrene, and polyvinyl chloride — was studied in aqueous environments. Results revealed that polymer type, surface area, and hydrophobic interactions were key factors controlling how much TBBPA accumulates on microplastic surfaces.
Mass flows and removal of eight bisphenol analogs, bisphenol A diglycidyl ether and its derivatives in two wastewater treatment plants in New York State, USA
AI summary Read the abstract
Researchers investigated the occurrence and fate of eight bisphenol analogs including BPA, plus bisphenol A diglycidyl ether and its derivatives, in two New York State wastewater treatment plants, finding variable removal efficiencies and significant mass flows of these plastic-associated chemicals through treatment systems.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.