. Removal of nitrate by an algal system. Water; Nitrates; Water; Algae. assimilation in the 8- and l6-inch cul- ture depths differed dis- tinctly. The curves in Figure 32 show the typical effect of depth. All these ponds were operated at eight days detention time and received 5 percent CO2. The overall average assim- ilations of total influent nitrogen were 80, 69, and 55 percent for 8, 12, and I6 Inches, FIGURE 30-MAXIMUM AND MINIMUM MINIPOND TEMPERATURES-JULY TO DECEMBER 1969 10 15 20 25 AVERAGE MAXIMUM POND TEMPERATURE 30 FIGURE 31-PLOT OF DETENTION TIME REQUIRED TO ASSIMILAT
. Removal of nitrate by an algal system. Water; Nitrates; Water; Algae. assimilation in the 8- and l6-inch cul- ture depths differed dis- tinctly. The curves in Figure 32 show the typical effect of depth. All these ponds were operated at eight days detention time and received 5 percent CO2. The overall average assim- ilations of total influent nitrogen were 80, 69, and 55 percent for 8, 12, and I6 Inches, FIGURE 30-MAXIMUM AND MINIMUM MINIPOND TEMPERATURES-JULY TO DECEMBER 1969 10 15 20 25 AVERAGE MAXIMUM POND TEMPERATURE 30 FIGURE 31-PLOT OF DETENTION TIME REQUIRED TO ASSIMILATE APPROXIMATELY 80% OF THE TOTAL NITROGEN vs AVERAGE RUN TEMPERATURE -61-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original California. Dept. of Water Resources; Brown, Randall L. Sacramento]; For sale by the Supt. of Docs. , U. S. Govt. Print. Off. , Washington
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Keywords: ., bookcentury1900, booksubje, booksubjectalgae, booksubjectnitrates
