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COAGULATION PRETREATMENT

The method of solution preparation is described in Chapter 4. The ferric chloride dosages used were adapted from coagulation papers which did not necessarily foresee membrane separation of the floes (Dennett et al. (1996)). [Pg.204]

Zhang X, Minear RA, Barrett SE (2005) Characterization ofhigh molecular weight disinfection byproducts from chlorination of humic substances with/without coagulation pretreatment using UF-SEC-ESI-MS/MS. Environ Sci Technol 39(4) 963-972... [Pg.135]

Zhu, B.T., Cliford, D.A., Chellam, S. (2005). Comparison of electrocoagulation and chemical coagulation pretreatment for enhanced virus removal using microfiltration membranes. Water Res. 39, 3098-3108. [Pg.262]

Several researchers have investigated the possibilities of membranes for the removal of dispersed water-based ink pigments from wash effluent [121-126]. Generally, membranes, in particular ultrafiltration membranes, have been found to completely remove ink pigments from effluent streams. It has also been observed that the permeate flux and the fouling tendency depend on operational conditions and effluent composition. For instance, coagulation pretreatment [125], feed water acidification [121], and surfactant addition [123] have been found to improve the flux and decrease fouhng. [Pg.999]

Chabot B, Krishnagopalan GA, Abubakr S. Coagulation pretreatment for ultrafiltration of deinking effluents containing flexographic inks. Progr. Pap. Recycl. 1999 November 46-65. [Pg.1006]

Vickers et al. (1997) found that MF with coagulation pretreatment produced ver similar results to conventional treatment with respect to DBF precursor removal. The advantage of MF was the simultaneous removal of Cryptosporidium and Giardia. Crossflow MF was found to be the superior technology to coagulation and filtration for a remote area water supply, and colour and turbidity were removed perfectly (Holland and Nash (1995)). [Pg.85]

Overall, the LJF experiments indicated thatflux is very dependent on the structure of the deposit, which was determined by the solute or colloid characteristics and their interaction in suspension. Organic ryection is more reliable for tighter membranes (10 kDa) and flux is more stable. Coagulation pretreatment can improve flux and rfiction, however the... [Pg.162]

Figure 8.5 DOC rejectio as a function of pore diameter with coagulation pretreatment compared to rejection with no pretreatment (shown as line). Figure 8.5 DOC rejectio as a function of pore diameter with coagulation pretreatment compared to rejection with no pretreatment (shown as line).
NF experiments showed that fouling was caused by precipitation of a calcium-organic complex. This precipitation and fouling could be prevented with coagulation pretreatment. [Pg.307]

Lahoussine-Turcaud V., Wiesner M.R., Bottero J.-Y. (1990), Fouling in tangential-flow ultrafiltration the effect of colloid size and coagulation pretreatment. Journal of Membrane Science, 52,173-190. [Pg.388]

Water Science and Technology, (in press). Schafer, A.L Fane, A.G. Waite, T.D., Direct Coagulation Pretreatment in Nanofiltration of Waters rich in Organic Matter and Calcium, copyright 2001, with permission from IWA Publishing. [Pg.430]

Coagulation Pretreatment FeCls dose mg/L No Membrane filtration 5 Multimedia filtration... [Pg.185]

See other pages where COAGULATION PRETREATMENT is mentioned: [Pg.356]    [Pg.62]    [Pg.79]    [Pg.86]    [Pg.204]    [Pg.205]    [Pg.207]    [Pg.209]    [Pg.213]    [Pg.265]    [Pg.265]    [Pg.267]    [Pg.269]    [Pg.271]    [Pg.304]    [Pg.307]    [Pg.97]    [Pg.143]    [Pg.143]   


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