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20
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ÍäÀ¿å¤Ø¤Î¥»¥é¥ß¥Ã¥¯Ëì¤í²áµ»½Ñ¤ÎŬ±þ¸¦µæ(II)
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Title |
Application Study of Ceramic Membrane Filtration Technology for Yodo River Water (II) |
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¼ÅÄľ¼ù1)¡¤»³¸ýÂÀ½¨1)¡¤ÀÄÌÚ¿¹À1)¡¤ÍûÉÙÀ¸2) |
Authors |
Naoki MURATA 1), Dabide YAMAGUCHI 1), Nobuhiro AOKI 1) and Fusheng LI 2) |
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1)¥á¥¿¥¦¥©¡¼¥¿¡¼(³ô) »ö¶ÈÀïάËÜÉô R&D ¥»¥ó¥¿¡¼, 2)´ôÉìÂç³Øή°è·÷²Ê³Ø¸¦µæ¥»¥ó¥¿¡¼ |
Ãø¼Ôɽµ(±Ñ) |
1) Environmental Technology Department, R&D Center, Business Strategy Division, METAWATER Co., Ltd., 2) River Basin Research Center, Gifu University |
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Office name |
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͵¡Êª¡¤¥ª¥¾¥ó¡¤Ë졤¥Õ¥¡¥¦¥ê¥ó¥°¡¤¥Ð¥¤¥ª¥Ý¥ê¥Þ¡¼ |
Key Words |
natural organic matter, ozone, membrane, fouling, biopolymers |
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Ëܸ¦µæ¤Ç¤ÏÍäÀ¿å¤òÍѤ¤¤Æ¶Å½¸¤È¥ª¥¾¥ó½èÍý¤Îξ¥×¥í¥»¥¹¤ÎƳÆþ°ÌÃÖ¤òÆþ¤ìÂؤ¨¡¤Æó¤Ä¤ÎËìÁ°½èÍý¾ò·ï(¡¶Å½¸¢ª¥ª¥¾¥ó¢ªËì¤í²á½èÍý¡¤¢¥ª¥¾¥ó¢ª¶Å½¸¢ªËì¤í²á½èÍý) ¤¬¡¤Ëì¥Õ¥¡¥¦¥ê¥ó¥°¤Ø¤Î´ØÍ¿¤¬»ØŦ¤µ¤ì¤Æ¤¤¤ë¥Ð¥¤¥ª¥Ý¥ê¥Þ¡¼Åù¤Î½üµîÀ¤Ë¤Ä¤¤¤Æɾ²Á¤·¤¿¡£¤½¤Î·ë²Ì¡¤¥ª¥¾¥óÃíÆþΨ1.2mg-O3/L¡¤¶Å½¸ºÞÃíÆþΨ1.2 mg-Al/L ¤Î¾ò·ï¤Ë¤ª¤¤¤Æ¡¤¡¤Ç¤Ï¶Å½¸½èÍý¤Ë¤è¤ë¥Ð¥¤¥ª¥Ý¥ê¥Þ¡¼½üµîΨ¤Ï52% ¤Ç¡¤Â³¤¯¥ª¥¾¥ó½èÍý¤Ç¤Ï¥Ð¥¤¥ª¥Ý¥ê¥Þ¡¼½üµîΨ¤ËÊѲ½¤¬¤Ê¤«¤Ã¤¿¡£°ìÊý¡¤¢¤Ç¤Ï¥ª¥¾¥ó½èÍý¤Ë¤è¤Ã¤Æ¥Ð¥¤¥ª¥Ý¥ê¥Þ¡¼¤Ï33% Áý²Ã¤·¡¤Â³¤¯¶Å½¸½èÍý¤Ç¤ÏÁý²Ã¤·¤¿¥Ð¥¤¥ª¥Ý¥ê¥Þ¡¼¤âÊ»¤»¤Æ½üµî¤µ¤ì¤¿¤¬½üµîΨ¤Ï45% ¤Ç¤¢¤Ã¤¿¡£¤·¤¿¤¬¤Ã¤Æ¡¤¥Ð¥¤¥ª¥Ý¥ê¥Þ¡¼¤Î³Î¼Â¤Ê½üµî¤Ë¤Ï¡¤Ëì¤í²á½èÍý¤ÎÁ°Ãʤ˶Ž¸¢ª¥ª¥¾¥ó½èÍý¤òÇÛÃÖ¤¹¤ë¤³¤È¤¬É¬ÍפǤ¢¤ë¤È¼¨¤µ¤ì¤¿¡£ |
Abstract |
By changing the introduction order of coagulation and ozonation, the influence of the pretreatment conditions of membrane filtration on the removal efficiency of biopolymers in Yodo River water was evaluated through experiment conducted for the process configurations of (1) coagulation ¢ª ozonation ¢ª membrane filtration and (2) ozonation ¢ª coagulation ¢ª membrane filtration. At the ozone dose of 1.2 mg-O3/L and the coagulant dose of 1.2 mg-Al/L, for the process configuration (1), coagulation removed biopolymers by 52% and a change in the removal by the followed ozonation was not revealed. For the process configuration (2), however, ozonation resulted in an increase in the concentration of biopolymers by 33% and through the followed process of coagulation biopolymers (including those produced by ozonation) were removed by 45%. The results thus indicate that, for reliable removal of biopolymers, the introduction of the two pretreatment processes in the order of coagulation ¢ª ozonation is more effective than in the oder of ozonation ¢ª coagulation. |