✦ LIBER ✦

The effect of rapid mixing on the break-up and re-formation of flocs

✍ Scribed by Mehmet Ali Yukselen; John Gregory

Publisher: Wiley (John Wiley & Sons)
Year: 2004
Tongue: English
Weight: 203 KB
Volume: 79
Category: Article
ISSN: 0268-2575
DOI: 10.1002/jctb.1056

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The effect of rapid mixing on floc formation, breakage and re‐formation using aluminium sulfate (‘alum’), polyaluminium chloride and a cationic polyelectrolyte were investigated using a continuous optical monitoring technique. For the aluminium‐based coagulants it was found that, with shorter times of rapid mix, larger flocs were formed, but only limited re‐growth occurred in all cases, indicating a significant irreversibility of the floc break‐up process. For cationic polyelectrolytes, the re‐growth of flocs occurred to a much greater extent and with longer rapid mix times floc breakage was almost fully reversible. Residual turbidity values before floc breakage and after re‐formation were consistent with the dynamic monitoring results. Copyright © 2004 Society of Chemical Industry

📜 SIMILAR VOLUMES

Effect of sludge flocs on the aeration p

Effect of sludge flocs on the aeration performance of suction-impellers

✍ Gerard T. M. van der Kroon; Jaap Vlot 📂 Article 📅 1971 🏛 John Wiley and Sons 🌐 English ⚖ 316 KB 👁 2 views

The effect of the mixing process on reac

The effect of the mixing process on reaction kinetics

✍ George Czerlinski; Richard Levin; Tjalling Ypma 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 162 KB 👁 1 views

## Abstract If the chemical rate constants of the initial reaction steps are large, any observed value of these constants may be affected by the mixing process. To investigate the effect of mixing efficiency on reaction kinetics we use two previously analyzed reaction systems, namely the glutamic a

Effect of Different Mixing Intervals on

Effect of Different Mixing Intervals on the Fermentation of Cocoa Beans

✍ Senanayake, Malinie; Jansz, Errol R; Buckle, Ken A 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 273 KB 👁 1 views

Four mixing intervals (6, 12, 18 and 24 h) were compared with special reference to three selected cacao varieties from two locations of Sri Lanka. Cocoa beans were fermented for 6 days by using the "sweat boxÏ fermentation method. Irrespective of location and variety, product prepared by using all m

The effects of structural breaks and lon

The effects of structural breaks and long memory on currency hedging

✍ Donald Lien; Li Yang 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 145 KB

## Abstract Empirical evidence suggests that unconditional variance of exchange rate return series is subject to occasional structural breaks that may induce spurious phenomenon of high persistence and long memory of volatility processes. In this study, we investigate the effects of such breaks on

Effect of hand mixing tobramycin on the

Effect of hand mixing tobramycin on the fatigue strength of Simplex P

✍ Davies, Jeffrey P. ;Harris, William H. 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 370 KB 👁 1 views

In a recent study, we showed that the presence of gentamicin in Palacos R or erythromycin plus colistin in Simplex P bone cement did not significantly decrease the fatigue strength of the cement.

Effect of polymer polarity on the positr

Effect of polymer polarity on the positronium formation

✍ Chenze Qi; Wang Wei; Yanjie Wu; Shuihe Zhang; Wang Haijun; Hamai Li; Tianmin Wan 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 161 KB 👁 2 views

Positron annihilation lifetime spectra have been measured on styrenemethyl methacrylate, styrene-acrylonitrile, and styrene-butyl methacrylate copolymers. The results show that the longest lifetime 3 remains constant during extended PALS measurement in all experiment copolymers, and relative intensi