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Coagulation and filtration

Oil Expressed as oil or chloroform extractable matter, ppmw Scale, sludge and foaming in boilers impedes heat exchange undesirable In most processes Baffle separators, strainers, coagulation and filtration, diatomaceous earth filtration... [Pg.146]

Reverse osmosis plants also are not immune from silica fouling, and where the raw water source naturally contains relatively high levels of silica, good pretreatment of the RO FW is a prerequisite. To reduce fouling of RO membranes by silica, pretreatment by acid adjustment, alum coagulation, and filtration usually is provided. [Pg.199]

Variables that typically determine the efficiency of coagulation and filtration in natural waters and in water and waste treatment systems... [Pg.269]

In some instances the raw water reaching water treatment plants may contain pathogens such as the human infectious protozoon Cryptosporidium parvum. The environmental form of C parvum is a spheroidal oocyst of 4-6 microns diameter. The oocyst is resistant to conventional chemical disinfectants that are commonly used in water treatment such as chlorine or chloramines. It is therefore essential that Cryptosporidium be removed during the coagulation and filtration processes stage in the water... [Pg.148]

Others recommend treatment to remove the compound. Hydrogen sulfide can be removed or reduced from RO feed water using some iron filters (such as manganese greensand and Filox, see Chapter 8.1.5) or a complicated combination of oxidation, coagulation and filtration, sulfite addition, and rechlorination.9... [Pg.131]

Examples of commonly used bioseparations include sedimentation, coagulation, and filtration. The scale of operation for such bioseparation processes is considerable, because of the volumes of effluent which are processed and the throughputs required. Proprietary aerobic digesters such as the Deep Shaft process may use centrifugation to recover biomass from the treated effluent for recycle as an inoculum for the digester or to reduce the quantity of water before sending the solid material either to incineration or land fill. [Pg.635]

THMs and HAAs continue to develop within the distribution system thus, monitoring can be complex. Optimizing coagulation and filtration is most important in helping to remove the precursors of these by-products and will, in turn, reduce the formation of THMs, HAAs and other unwanted by-products. [Pg.76]

American Waterworks Association (1992). Operational Control of Coagulation and Filtration Processes. Am. Water Works Assoc., Denver. [Pg.386]

PARTICLE-PARTICLE INTERACTION COLLOIDS, COAGULATION, AND FILTRATION... [Pg.818]

Particle-Particle Interaction Colloids, Coagulation, and Filtration... [Pg.820]

Figure 14.23. Variables that typically determine the efficiency of coagulation and filtration in natural waters and in water and waste treatment systems, (a) How the variables determine the coagulation efficiency, (b) Marked increase in filtration rate can be achieved by counterbalancing a reduction in contact opportunities by chemically improving the contact efficiency, with similar efficiency in particle removal. Figure 14.23. Variables that typically determine the efficiency of coagulation and filtration in natural waters and in water and waste treatment systems, (a) How the variables determine the coagulation efficiency, (b) Marked increase in filtration rate can be achieved by counterbalancing a reduction in contact opportunities by chemically improving the contact efficiency, with similar efficiency in particle removal.
See other pages where Coagulation and filtration is mentioned: [Pg.501]    [Pg.154]    [Pg.146]    [Pg.363]    [Pg.149]    [Pg.268]    [Pg.268]    [Pg.94]    [Pg.212]    [Pg.154]    [Pg.1739]    [Pg.154]    [Pg.15]    [Pg.79]    [Pg.127]    [Pg.289]    [Pg.180]   
See also in sourсe #XX -- [ Pg.268 ]



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And coagulation

Coagulation/filtration

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