“Hồi sinh” những dòng sông chết

<html> <head> <meta http-equiv='Content-Type' content='text/html; charset=utf-8'> <title> </title> </head> <div style="text-align: center;"><span style="color: rgb(0, 0, 255);"><strong><span style="font-size: small;"><span style="font-family: Arial;">&ldquo;H&#7891i sinh&rdquo; nh&#7919ng d&ograve;ng s&ocirc;ng ch&#7871t</span></span></strong></span></div> <div style="text-align: justify;"><span style="font-size: small;"><span style="font-family: Arial;"><br /> Nh&#7857m th&#7921c hi&#7879n &#273&#7873 &aacute;n &ldquo;C&ocirc;ng tr&igrave;nh c&#7843i thi&#7879n m&ocirc;i tr&#432&#7901ng, c&#7843nh quan s&ocirc;ng S&agrave;i G&ograve;n, giai &#273o&#7841n 2009 &ndash; 2014&rdquo; v&agrave; ph&aacute;t huy s&#7921 s&aacute;ng t&#7841o c&#7911a tu&#7893i tr&#7867 th&agrave;nh ph&#7889 th&#7921c hi&#7879n phong tr&agrave;o xung k&iacute;ch b&#7843o v&#7879 m&ocirc;i tr&#432&#7901ng, Trung t&acirc;m Ph&aacute;t tri&#7875n Khoa h&#7885c v&agrave; C&ocirc;ng ngh&#7879 Tr&#7867 t&#7893 ch&#7913c di&#7877n &#273&agrave;n khoa h&#7885c &ldquo;B&#7843o v&#7879 v&agrave; ph&aacute;t tri&#7875n c&#7843nh quan s&ocirc;ng S&agrave;i G&ograve;n&rdquo; nh&#7857m &#273&#432a ra gi&#7843i ph&aacute;p kh&#7855c ph&#7909c nh&#7919ng v&#7845n &#273&#7873 &ocirc; nhi&#7877m v&agrave; c&#7843i t&#7841o c&#7843nh quan d&#7885c b&#7901 s&ocirc;ng S&agrave;i G&ograve;n. <br /> <br /> </span><strong><span style="font-family: Arial;">B&aacute;o &#273&#7897ng &#273&#7887 &ocirc; nhi&#7877m m&ocirc;i tr&#432&#7901ng</span></strong></span></div> <div style="text-align: justify;"><span style="font-size: small;"><span style="font-family: Arial;"><br /> K&#7871t qu&#7843 c&#7911a c&aacute;c c&ocirc;ng tr&igrave;nh nghi&ecirc;n c&#7913u cho th&#7845y s&ocirc;ng S&agrave;i G&ograve;n &#273ang b&#7883 &ocirc; nhi&#7877m b&#7903i c&aacute;c ch&#7881 ti&ecirc;u h&oacute;a l&yacute;, vi sinh v&agrave; h&#7919u c&#417. N&#432&#7899c th&#7843i sinh ho&#7841t v&agrave; n&#432&#7899c th&#7843i c&ocirc;ng nghi&#7879p &#273ang l&agrave; &ldquo;hung th&#7911&rdquo; &#273&#7847u &#273&#7897c d&ograve;ng s&ocirc;ng, g&acirc;y nguy hi&#7875m &#273&#7871n s&#7913c kh&#7887e con ng&#432&#7901i. Hi&#7879n nay, ngu&#7891n n&#432&#7899c sinh ho&#7841t c&#7911a ng&#432&#7901i d&acirc;n tr&ecirc;n &#273&#7883a b&agrave;n TP.HCM s&#7917 d&#7909ng ch&#7911 y&#7871u l&agrave; n&#432&#7899c m&aacute;y &#273&atilde; qua x&#7917 l&yacute; t&#7915 ngu&#7891n n&#432&#7899c th&ocirc; l&#7845y t&#7841i s&ocirc;ng S&agrave;i G&ograve;n - &#272&#7891ng Nai, v&agrave; m&#7897t ph&#7847n tr&ecirc;n k&ecirc;nh &#272&ocirc;ng.</span></span></div> <div style="text-align: justify;"><span style="font-size: small;"><span style="font-family: Arial;"><br /> </span></span></div> <div style="text-align: center;"><em><img width="319" height="400" alt="" src="HINH%201(1).jpg" /><br /> </em></div> <div style="text-align: center;"><em><span style="font-size: small;"><span style="font-family: Arial;">N&#432&#7899c th&#7843i sinh ho&#7841t x&#7843 tr&#7921c ti&#7871p ra s&ocirc;ng S&agrave;i G&ograve;n - &#7842nh ch&#7909p tr&ecirc;n &#273&#7883a b&agrave;n P.An Ph&uacute; &#272&ocirc;ng, Q.12</span></span></em></div> <div style="text-align: justify;"><span style="font-size: small;"><span style="font-family: Arial;"><br /> Trong nhi&#7873u n&#259m qua, vi&#7879c gi&aacute;m s&aacute;t ch&#7845t l&#432&#7907ng n&#432&#7899c c&#7845p cho sinh ho&#7841t &#273&atilde; &#273&#432&#7907c &#273&#7863t t&#7841i c&aacute;c tr&#7841m th&#432&#7907ng l&#432u s&ocirc;ng S&agrave;i G&ograve;n nh&#432 B&#7871n C&#7911i, B&#7871n S&uacute;c. . . Nh&#432ng k&#7871t qu&#7843 cho th&#7845y m&#7897t s&#7889 ch&#7881 ti&ecirc;u &#273&#7841t chu&#7849n cho ph&eacute;p nh&#432: pH, &#273&#7897 &#273&#7909c, n&#7891ng &#273&#7897 ch&#7845t r&#7855n h&ograve;a tan trong n&#432&#7899c, oxy h&ograve;a tan, n&#7891ng &#273&#7897 d&#7847u v&agrave; vi sinh v&#7853t t&#7841i h&#7847u h&#7871t c&aacute;c tr&#7841m quan tr&#7855c v&#432&#7907t m&#7913c cho ph&eacute;p. &#272i&#7873u &#273&#7863c bi&#7879t l&agrave; c&agrave;ng l&ugrave;i v&#7873 ph&iacute;a h&#7841 ngu&#7891n, ch&#7845t l&#432&#7907ng n&#432&#7899c s&ocirc;ng S&agrave;i G&ograve;n c&agrave;ng suy gi&#7843m do b&#7883 &#7843nh h&#432&#7903ng m&#7841nh b&#7903i n&#432&#7899c th&#7843i sinh ho&#7841t v&agrave; c&ocirc;ng nghi&#7879p t&#7915 TP.HCM v&agrave; t&#7881nh B&igrave;nh D&#432&#417ng &#273&#7893 ra. Trong &#273&oacute;, n&#432&#7899c th&#7843i sinh ho&#7841t l&agrave; ngu&#7891n g&acirc;y &ocirc; nhi&#7877m &#273&aacute;ng k&#7875 nh&#7845t, chi&#7871m &#273&#7871n 62, 2% t&#7893ng l&#432u l&#432&#7907ng th&#7843i ra s&ocirc;ng S&agrave;i G&ograve;n. C&aacute;c k&ecirc;nh r&#7841ch mang ch&#7845t th&#7843i &#273&#7893 th&#7859ng ra s&ocirc;ng c&#361ng khi&#7871n cho t&igrave;nh tr&#7841ng &ocirc; nhi&#7877m ngu&#7891n n&#432&#7899c con s&ocirc;ng l&#7899n nh&#7845t &#273i qua TP.HCM tr&#7847m tr&#7885ng h&#417n.</span></span></div> <div style="text-align: justify;"><span style="font-size: small;"><span style="font-family: Arial;"><br /> B&ecirc;n c&#7841nh &#273&oacute;, tr&ecirc;n l&#432u v&#7921c s&ocirc;ng S&agrave;i G&ograve;n c&ograve;n c&oacute; g&#7847n 50 khu c&ocirc;ng nghi&#7879p v&agrave; c&#7909m c&ocirc;ng nghi&#7879p &#273ang ho&#7841t &#273&#7897ng, v&#7899i t&#7893ng l&#432&#7907ng n&#432&#7899c th&#7843i kho&#7843ng h&#417n 100.000 m3/ng&agrave;y &#273&ecirc;m. M&#7863c d&ugrave; h&#7847u h&#7871t c&aacute;c khu c&ocirc;ng nghi&#7879p &#273&#7873u c&oacute; h&#7879 th&#7889ng x&#7917 l&yacute; n&#432&#7899c th&#7843i t&#7853p trung, nh&#432ng v&#7851n c&ograve;n m&#7897t s&#7889 doanh nghi&#7879p ch&#432a th&#7921c hi&#7879n &#273&#7845u n&#7889i m&agrave; x&#7843 n&#432&#7899c th&#7843i tr&#7921c ti&#7871p ra b&ecirc;n ngo&agrave;i. Ti&#7871p theo l&agrave; c&aacute;c c&#417 s&#7903 c&ocirc;ng nghi&#7879p ph&acirc;n t&aacute;n nh&#7887 n&#7857m l&#7851n trong khu d&acirc;n c&#432 &#273&ocirc; th&#7883 c&#361ng th&#432&#7901ng xuy&ecirc;n x&#7843 n&#432&#7899c th&#7843i ch&#432a qua x&#7917 l&yacute; ra k&ecirc;nh r&#7841ch. &#272o&#7841n ch&#7843y qua &#273&#7883a ph&#7853n t&#7881nh B&igrave;nh D&#432&#417ng, khu v&#7921c L&aacute;i Thi&ecirc;u, t&igrave;nh tr&#7841ng ngu&#7891n n&#432&#7899c &#273ang b&#7883 &ocirc; nhi&#7877m n&#7863ng v&igrave; ph&#7843i ti&#7871p nh&#7853n n&#432&#7899c th&#7843i t&#7915 m&#7897t s&#7889 nh&agrave; m&aacute;y s&#7843n xu&#7845t g&#7889m s&#7913, g&#7841ch v&agrave; c&aacute;c qu&aacute;n nh&#7853u ven s&ocirc;ng. H&#7847u nh&#432 c&aacute;c &#273i&#7875m s&#7843n xu&#7845t kinh doanh n&agrave;y &#273&#7873u x&#7843 t&#7845t c&#7843 n&#432&#7899c sinh ho&#7841t v&agrave; ch&#7845t th&#7843i ra s&ocirc;ng S&agrave;i G&ograve;n.</span></span></div> <div style="text-align: justify;"><span style="font-size: small;"><span style="font-family: Arial;"><br /> </span></span></div> <div><strong> <div style="text-align: justify;"><span style="font-size: small;"><span style="font-family: Arial;">Nh&#7919ng &ldquo;tia s&aacute;ng&rdquo; xanh</span></span></div> </strong></div> <div style="text-align: justify;"><span style="font-size: small;"><span style="font-family: Arial;"><br /> &ldquo;&#272&#7871n c&#7887 c&acirc;y c&#361ng l&ecirc;n ti&#7871ng!&rdquo; l&agrave; v&#7845n &#273&#7873 m&agrave; nh&oacute;m sinh vi&ecirc;n &#273&#7871n t&#7915 tr&#432&#7901ng &#272&#7841i h&#7885c Hoa Sen mang &#273&#7871n t&#7841i di&#7877n &#273&agrave;n, trong &#273&#7873 t&agrave;i nghi&ecirc;n c&#7913u khoa h&#7885c: Kh&#7843 n&#259ng x&#7917 l&yacute; n&#432&#7899c th&#7843i &ocirc; nhi&#7877m k&ecirc;nh m&#432&#417ng Tp. HCM c&#7911a m&#7897t s&#7889 th&#7921c v&#7853t b&#7843n &#273&#7883a. C&aacute;c b&#7841n sinh vi&ecirc;n c&#7911a tr&#432&#7901ng &#273&atilde; th&#7917 nghi&#7879m b&#7857ng vi&#7879c t&igrave;m ra kh&#7843 n&#259ng x&#7917 l&yacute; n&#432&#7899c th&#7843i sinh ho&#7841t l&#7845y t&#7915 k&ecirc;nh r&#7841ch t&#7841i th&agrave;nh ph&#7889 H&#7891 Ch&iacute; Minh c&#7911a m&#7897t s&#7889 lo&agrave;i th&#7921c v&#7853t th&#7911y sinh v&ugrave;ng nhi&#7879t &#273&#7899i nh&#432: L&#7909c b&igrave;nh, C&#7887 n&#7871n, Hoa chu&#7889i, Th&#7911y tr&uacute;c. Sau &#273&oacute; &aacute;p d&#7909ng c&aacute;c lo&agrave;i th&#7921c v&#7853t n&agrave;y nh&#432 m&#7897t c&ocirc;ng ngh&#7879 x&#7917 l&yacute; n&#432&#7899c th&#7843i sinh ho&#7841t theo ph&#432&#417ng ph&aacute;p t&#7921 nhi&ecirc;n v&agrave; &#273&atilde; cho k&#7871t qu&#7843 r&#7845t kh&#7843 thi. </span></span></div> <div style="text-align: justify;"><span style="font-size: small;"><span style="font-family: Arial;"><br /> Vi&#7879c nghi&ecirc;n c&#7913u v&agrave; &#7913ng d&#7909ng th&agrave;nh c&ocirc;ng c&acirc;y th&#7921c v&#7853t th&#7911y sinh b&#7843n &#273&#7883a &#273&#7875 l&agrave;m gi&#7843m &ocirc; nhi&#7877m n&#432&#7899c tr&ecirc;n k&ecirc;nh r&#7841ch th&agrave;nh ph&#7889 H&#7891 Ch&iacute; Minh s&#7869 mang l&#7841i nhi&#7873u l&#7907i &iacute;ch v&#7873 nhi&#7873u m&#7863t kinh t&#7871 v&agrave; x&atilde; h&#7897i, &#273&#7863c bi&#7879t l&agrave; l&#7907i &iacute;ch d&#432&#7899i g&oacute;c &#273&#7897 m&ocirc;i tr&#432&#7901ng. Tuy nhi&ecirc;n, hi&#7879n nay m&ocirc; h&igrave;nh n&agrave;y ch&#7881 &#273&#432a v&agrave;o &#7913ng d&#7909ng d&agrave;nh cho x&#7917 l&yacute; n&#432&#7899c th&#7843i ch&#259n nu&ocirc;i. </span></span></div> <div style="text-align: justify;"><span style="font-size: small;"><span style="font-family: Arial;"><br /> &#272&#7863c bi&#7879t trong bu&#7893i t&#7885a &#273&agrave;m l&agrave; b&agrave;i tham lu&#7853n nh&#7857m nghi&ecirc;n c&#7913u v&agrave; n&acirc;ng cao c&#7843nh quan khu v&#7921c k&ecirc;nh Nhi&ecirc;u L&#7897c &ndash; Th&#7883 Ngh&egrave; v&agrave; hai tuy&#7871n &#273&#432&#7901ng Tr&#432&#7901ng Sa, Ho&agrave;ng Sa c&#7911a nh&oacute;m sinh vi&ecirc;n &#273&#7871n t&#7915 khoa &#272&ocirc; th&#7883 h&#7885c tr&#432&#7901ng &#272H KHXH v&agrave; Nh&acirc;n v&#259n TP.HCM &#273&atilde; mang l&#7841i nhi&#7873u th&ocirc;ng &#273i&#7879p. U&#7889n l&#432&#7907n gi&#7919a trung t&acirc;m S&agrave;i G&ograve;n kh&ocirc;ng ch&#7881 t&#7841o &#273i&#7875m nh&#7845n c&#7843nh quan &#273&ocirc; th&#7883 m&agrave; d&ograve;ng k&ecirc;nh c&ograve;n &#273&oacute;ng vai tr&ograve; ti&ecirc;u tho&aacute;t n&#432&#7899c th&#7843i, gi&#7843m ng&#7853p l&#7909t v&agrave; g&oacute;p ph&#7847n &#273i&#7873u h&ograve;a kh&iacute; h&#7853u. Th&#7871 nh&#432ng trong su&#7889t qu&aacute; tr&igrave;nh ph&aacute;t tri&#7875n c&#7911a th&agrave;nh ph&#7889, &#273&#7863c bi&#7879t l&agrave; sau khi &#273&#7845t n&#432&#7899c th&#7889ng nh&#7845t, n&#7841n l&#7845n chi&#7871m l&ograve;ng k&ecirc;nh, x&acirc;y c&#7845t nh&agrave; &#7903 do h&#7879 qu&#7843 c&#7911a qu&aacute; tr&igrave;nh &#273&ocirc; th&#7883 ho&aacute; v&agrave; ph&aacute;t tri&#7875n d&acirc;n s&#7889 thi&#7871u quy ho&#7841ch l&agrave;m xu&#7845t hi&#7879n h&agrave;ng ng&agrave;n c&#259n nh&agrave; &#7893 chu&#7897t d&#7885c k&ecirc;nh. T&#7915 &#273&oacute; h&#7879 th&#7889ng k&ecirc;nh tr&#7903 th&agrave;nh n&#417i ti&#7871p nh&#7853n ch&#7845t th&#7843i t&#7915 c&aacute;c ho&#7841t &#273&#7897ng sinh ho&#7841t, s&#7843n xu&#7845t c&#7911a ng&#432&#7901i d&acirc;n sinh s&#7889ng ven k&ecirc;nh v&agrave; tr&ecirc;n l&#432u v&#7921c. T&#7845t c&#7843 c&aacute;c ch&#7845t th&#7843i ch&#432a &#273&#432&#7907c x&#7917 l&yacute; th&#7843i tr&#7921c ti&#7871p v&agrave;o k&ecirc;nh &#273&atilde; g&acirc;y ra t&igrave;nh tr&#7841ng &ocirc; nhi&#7877m m&ocirc;i tr&#432&#7901ng n&#432&#7899c v&agrave; m&#7845t m&#7929 quan &#273&ocirc; th&#7883 nghi&ecirc;m tr&#7885ng. </span></span></div> <div style="text-align: justify;"><span style="font-size: small;"><span style="font-family: Arial;"><br /> B&#7841n &#272o&agrave;n Di&#7879p Th&ugrave;y D&#432&#417ng, sinh vi&ecirc;n khoa &#272&ocirc; tth&#7883 h&#7885c tr&#432&#7901ng &#272H KHXH&amp; NV chia s&#7867 r&#7857ng: &#272&#7873 t&agrave;i l&agrave; t&acirc;m huy&#7871t c&#7911a nh&oacute;m nh&#7857m c&#7843i thi&#7879n m&ocirc;i tr&#432&#7901ng v&agrave; c&#7843nh quan c&#7911a th&agrave;nh ph&#7889 g&oacute;p ph&#7847n n&acirc;ng cao nh&#7853n th&#7913c c&#7911a ng&#432&#7901i d&acirc;n. C&aacute;c b&#7841n &#273&#432a ra &yacute; t&#432&#7903ng b&agrave;y tr&iacute; c&#7843nh quan t&#7841i hai tuy&#7871n k&ecirc;nh sao cho th&#7853t &#273&#7865p m&#7855t, t&#7841o m&ocirc;i tr&#432&#7901ng th&ocirc;ng tho&aacute;ng &#273&#7875 c&#7843i t&#7841o d&ograve;ng k&ecirc;nh Nhi&ecirc;u L&#7897c &ndash; Th&#7883 Ngh&egrave;.</span></span></div> <div style="text-align: justify;"><span style="font-size: small;"><span style="font-family: Arial;"><br /> Ngo&agrave;i ra ch&#432&#417ng tr&igrave;nh c&ograve;n c&oacute; nh&#7919ng &#273&#7873 t&agrave;i nghi&ecirc;n c&#7913u c&#7911a tr&#432&#7901ng &#272&#7841i h&#7885c Qu&#7889c t&#7871 H&#7891ng B&agrave;ng, Ph&acirc;n vi&#7879n Kh&iacute; t&#432&#7907ng Thu&#7927 v&#259n v&agrave; M&ocirc;i tr&#432&#7901ng ph&iacute;a Nam, Vi&#7879n M&ocirc;i tr&#432&#7901ng v&agrave; T&agrave;i nguy&ecirc;n, &#272HQG TP.HCM.</span></span></div> <div style="text-align: justify;">&nbsp;</div> <div style="text-align: right;"><strong><span style="font-size: small;"><span style="font-family: Arial;"><br /> M&#7928 L&#7878</span></span></strong><span style="font-size: small;"><span style="font-family: Arial;"><br /> <br /> </span></span></div> </html>

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