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Figure 4. Removal of UV254 by MWCNTs and combined coagulation using jar test for (a) winter, (b) spring, (c) fall, and (d) summer. Optimum coagulant dose = 50 mg/L. UV 254: ultraviolet absorbance at 254 nm; MWCNT: multiwalled carbon nanotube.

Figure 4 Removal of UV254 by MWCNTs and combined coagulation using jar test for (a) winter, (b) spring, (c) fall, and (d) summer. Optimum coagulant dose = 50 mg/L. UV 254: ultraviolet absorbance at 254 nm; MWCNT: multiwalled carbon nanotube.

Related Figures (9)

TOC: total organic matter; UV>54: ultraviolet absorbance at 254 nm; SUVA: specific ultraviolet absorbance; THMFP: trihalomethane formation potential. “Average concentration of 3 months in one season. Table |. Physicochemical characteristics of Ulutan raw water samples (September 2014—July 2015).
TOC: total organic matter; UV>54: ultraviolet absorbance at 254 nm; SUVA: specific ultraviolet absorbance; THMFP: trihalomethane formation potential. “Average concentration of 3 months in one season. Table |. Physicochemical characteristics of Ulutan raw water samples (September 2014—July 2015).
DOC: dissolved organic carbon; UV 254: ultraviolet absorbance at 254 nm; SUVA: specific ultraviolet absorbance; THMFP: trihalomethane formation potential. *Average concentration of 3 months in one season. Table 2. Seasonal characterization of surrogate parameters of NOM in ULW.
DOC: dissolved organic carbon; UV 254: ultraviolet absorbance at 254 nm; SUVA: specific ultraviolet absorbance; THMFP: trihalomethane formation potential. *Average concentration of 3 months in one season. Table 2. Seasonal characterization of surrogate parameters of NOM in ULW.
Figure I. Removal of DOC by SWCNTs and combined coagulation using jar test for (a) winter, (b) spring, (c) fall, and (d) summer. Optimum coagulant dose = 50 mg/L. DOC: dissolved organic carbon; SWCNT: single-walled carbon nanotube.
Figure I. Removal of DOC by SWCNTs and combined coagulation using jar test for (a) winter, (b) spring, (c) fall, and (d) summer. Optimum coagulant dose = 50 mg/L. DOC: dissolved organic carbon; SWCNT: single-walled carbon nanotube.
Figure 2. Removal of UV254 by SWCNTs and combined coagulation using jar test from (a) winter, (b) spring, (c) fall, and (d) summer. Optimum coagulant dose = 50 mg/L. UV254: ultraviolet absorbance at 254 nm; SWCNT: single-walled carbon nanotube.
Figure 2. Removal of UV254 by SWCNTs and combined coagulation using jar test from (a) winter, (b) spring, (c) fall, and (d) summer. Optimum coagulant dose = 50 mg/L. UV254: ultraviolet absorbance at 254 nm; SWCNT: single-walled carbon nanotube.
Figure 3. Removal of DOC by MWCNTs and combined coagulation using jar test for (a) winter, (b) spring, (c) fall, and (d) summer. Optimum coagulant dose = 50 mg/L. DOC: dissolved organic carbon; MWCNT: multiwalled carbon nanotube.
Figure 3. Removal of DOC by MWCNTs and combined coagulation using jar test for (a) winter, (b) spring, (c) fall, and (d) summer. Optimum coagulant dose = 50 mg/L. DOC: dissolved organic carbon; MWCNT: multiwalled carbon nanotube.
Table 3. The highest DOC removals from ULW with combined coagulation. DOC: dissolved organic carbon; ULW: Ulutan Lake water; SWCNT: single-walled carbon nanotube; MWCNT: multiwalled carbon nanotube.
Table 3. The highest DOC removals from ULW with combined coagulation. DOC: dissolved organic carbon; ULW: Ulutan Lake water; SWCNT: single-walled carbon nanotube; MWCNT: multiwalled carbon nanotube.
Table 4. The highest UV254 removals from ULW with combined coagulation. UV254: ultraviolet absorbance at 254 nm; SWCNT: single-walled carbon nanotube; MWCNT: multiwalled carbon nanotube.
Table 4. The highest UV254 removals from ULW with combined coagulation. UV254: ultraviolet absorbance at 254 nm; SWCNT: single-walled carbon nanotube; MWCNT: multiwalled carbon nanotube.
Figure 5. Comparison of DOC removal using conventional coagulation (only alum and FeCl3) and combined coagulation processes. Optimum alum and FeCl; dose = 80 mg/L and combined coagulant dose = 50 mg/L. DOC: dissolved organic carbon.
Figure 5. Comparison of DOC removal using conventional coagulation (only alum and FeCl3) and combined coagulation processes. Optimum alum and FeCl; dose = 80 mg/L and combined coagulant dose = 50 mg/L. DOC: dissolved organic carbon.
Figure 6. Comparison of UV254 removal using conventional coagulation (only alum and FeCl3) and combined coagulation processes. Optimum alum and FeCl; dose = 80 mg/L and optimum combined coagulant dose = 50 mg/L. UV25,4: ultraviolet absorbance at 254 nm.
Figure 6. Comparison of UV254 removal using conventional coagulation (only alum and FeCl3) and combined coagulation processes. Optimum alum and FeCl; dose = 80 mg/L and optimum combined coagulant dose = 50 mg/L. UV25,4: ultraviolet absorbance at 254 nm.
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Materials ScienceCarbon FibersNatural Organic Matter
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