3 years ago

Dynamic Flocculation of Ultrafine Particles of Coal-Fired Power Plant Induced by Ionic Polyacrylamides at Bench and Pilot Scales

Dynamic Flocculation of Ultrafine Particles of Coal-Fired Power Plant Induced by Ionic Polyacrylamides at Bench and Pilot Scales
Xiaobang Hou, Haoren Chen, Shuming Du, Hua Guo, Yiwei Chen, Huining Xiao, Yi Zhang, Yuanfeng Pan
Ultrafine particles or particulate matter emitted from coal-fired power plants pose serious threats to public health. In this work, unique processes for flocculating ultrafine particles were developed and conducted at both bench and pilot scales. The results from dynamic flocculation processes, monitored through a benchtop photometric dispersion analyzer, indicated that ionic polyacrylamide of high molecular weight (MW) induced effective flocculation at concentrations of 1–3 ppm and neutral pH. Such conditions were adopted in a pilot-scale flocculation tower in accordance with the actual operating parameters of a power plant to verify the flocculation of ultrafine particles induced by counter-flow spraying flocculant solution into simulated flue gas. Results showed that the best conditions in pilot trials were to spray the diluted solution of anionic polymer with ultrahigh MW at 20 mL/min, which increased fine particle size from 2.46 to 25.9 μm (floc size), thus demonstrating the effectiveness of the process.

Publisher URL: http://dx.doi.org/10.1021/acs.iecr.7b02674

DOI: 10.1021/acs.iecr.7b02674

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.