Effects of hydrophobe contents of amphiphilic polyelectrolytes on flocs size and removal efficiency of NOM from waters
Bibliographic record
Abstract
Research Article| August 01 2008 Effects of hydrophobe contents of amphiphilic polyelectrolytes on flocs size and removal efficiency of NOM from waters R. Alnaizy; R. Alnaizy 1Chemical Engineering Department, American University of Sharjah, P.O. Box 26666, Sharjah, United Arab Emirates Tel.: (971) 6-515-2710 Fax: (971) 6-515-2979; E-mail: ralnaizy@aus.edu Search for other works by this author on: This Site PubMed Google Scholar M. Sayem Mozumder; M. Sayem Mozumder 2Department of Chemical and Biochemical Engineering, The University of Western Ontario London, ON, N6A5B9, Canada Search for other works by this author on: This Site PubMed Google Scholar B. F. Abu-Sharkh; B. F. Abu-Sharkh 3Chemistry Department, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia Search for other works by this author on: This Site PubMed Google Scholar Sk. A. Ali Sk. A. Ali 3Chemistry Department, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2008) 57 (5): 329–336. https://doi.org/10.2166/aqua.2008.046 Article history Received: May 01 2007 Accepted: November 07 2007 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Cite Icon Cite Permissions Search Site Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsThis Journal Search Advanced Search Citation R. Alnaizy, M. Sayem Mozumder, B. F. Abu-Sharkh, Sk. A. Ali; Effects of hydrophobe contents of amphiphilic polyelectrolytes on flocs size and removal efficiency of NOM from waters. Journal of Water Supply: Research and Technology-Aqua 1 August 2008; 57 (5): 329–336. doi: https://doi.org/10.2166/aqua.2008.046 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Polymer-based coagulants, such as amphiphilic polyelectrolytes, are used for water treatment in two distinct ways, as coagulant aids and as primary coagulants. In the latter role, polymers have a number of advantages over inorganic coagulants, notably the smaller volume of sludge produced and reduced sludge management costs. This study examines the impact of molecular structure of novel amphiphilic polyelectrolytes on floc size and size distribution determined by dynamic light scattering. These parameters are related to hydrophobe contents and charge of the polyelectrolyte. These characteristics are also related to the removal efficiency of natural organic matter (NOM). It is expected that a much lower amount of polymer is sufficient when amphiphilic polyelectrolytes are used as primary coagulants/flocculants in treating waters contaminated with NOM. The smaller polymer amount may result in lesser treatment costs as well as yielding a much lower sludge volume. Dynamic light scattering and UV absorbance results confirmed an optimum polymer dose of 0.3 ppm with up to 5% hydrophobe contents. The polymer hydrophobe contents were directly related to the system performance and NOM removal efficiency. The pH of the solution was virtually unaffected. amphiphilic, coagulation, flocculation, hydrophobe, NOM, polyelectrolytes This content is only available as a PDF. © IWA Publishing 2008 You do not currently have access to this content.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.002 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".