Abstract
The phosphorous removal ability of hydrotalcite reconstructed in seawater（CHT-SW）was examined in comparison with that of lime and the hydrotalcite reconstructed in NaCl solution（CHT-NaCl）. Phosphorous removal of CHT-SW is higher than that of CHT-NaCl in the solution with a wide pH range, and pH of the solution after treatment is buffered to 8.5 due to the buffering ability of hydrotalcite, while that is strong alkaline using lime. These results suggested that it is possible to produce hydrotalcite with novel properties using seawater.
