{"id":459431,"date":"2025-05-26T07:05:59","date_gmt":"2025-05-26T00:05:59","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=459431"},"modified":"2025-05-26T07:05:59","modified_gmt":"2025-05-26T00:05:59","slug":"tds","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/tds\/","title":{"rendered":"Ch\u1ec9 s\u1ed1 TDS l\u00e0 g\u00ec? TDS bao nhi\u00eau l\u00e0 \u0111\u1ea1t chu\u1ea9n n\u01b0\u1edbc s\u1ea1ch? C\u00e1ch \u0111o"},"content":{"rendered":"

M\u1ed9t trong nh\u1eefng ch\u1ec9 s\u1ed1 quan tr\u1ecdng \u0111\u1ec3 b\u1ea1n \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 tinh khi\u1ebft c\u1ee7a n\u01b0\u1edbc ch\u00ednh l\u00e0 <\/span>TDS<\/b>. V\u00e0 trong b\u00e0i vi\u1ebft n\u00e0y, Ho\u00e0ng H\u00e0 Mobile s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 ch\u1ec9 s\u1ed1 n\u00e0y l\u00e0 g\u00ec? Ch\u1ec9 s\u1ed1 bao nhi\u00eau l\u00e0 \u0111\u1ea1t chu\u1ea9n cho n\u01b0\u1edbc s\u1ea1ch, v\u00e0 l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111o ch\u1ec9 s\u1ed1 n\u00e0y m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c? H\u00e3y d\u00e0nh \u00edt ph\u00fat \u0111\u1ec3 t\u00ecm hi\u1ec3u th\u00eam ki\u1ebfn th\u1ee9c m\u1edbi b\u1ea1n nh\u00e9.<\/span><\/p>\n

Ch\u1ec9 s\u1ed1 TDS l\u00e0 g\u00ec?<\/b><\/h2>\n

Total Dissolved Solids l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a \u201cT\u1ed5ng ch\u1ea5t r\u1eafn h\u00f2a tan\u201d \u2013 m\u1ed9t th\u00f4ng s\u1ed1 quan tr\u1ecdng trong vi\u1ec7c \u0111\u00e1nh gi\u00e1 ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc. Ch\u1ec9 s\u1ed1 th\u1ec3 hi\u1ec7n t\u1ed5ng l\u01b0\u1ee3ng c\u00e1c ch\u1ea5t r\u1eafn h\u00f2a tan trong n\u01b0\u1edbc, bao g\u1ed3m c\u1ea3 v\u00f4 c\u01a1 (nh\u01b0 mu\u1ed1i, kim lo\u1ea1i, kho\u00e1ng ch\u1ea5t) v\u00e0 h\u1eefu c\u01a1 (nh\u01b0 h\u1ee3p ch\u1ea5t carbon). C\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n t\u1ef1 nhi\u00ean t\u1eeb ngu\u1ed3n n\u01b0\u1edbc ng\u1ea7m, n\u01b0\u1edbc s\u00f4ng, ho\u1eb7c do qu\u00e1 tr\u00ecnh sinh ho\u1ea1t v\u00e0 c\u00f4ng nghi\u1ec7p th\u1ea3i ra m\u00f4i tr\u01b0\u1eddng.<\/span><\/p>\n

\"tds-1\"<\/picture><\/p>\n

Ch\u1ec9 s\u1ed1 n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng \u0111\u01a1n v\u1ecb mg\/l (milligram tr\u00ean l\u00edt) ho\u1eb7c ppm (ph\u1ea7n tri\u1ec7u), v\u00e0 v\u1ec1 b\u1ea3n ch\u1ea5t hai \u0111\u01a1n v\u1ecb n\u00e0y l\u00e0 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng nhau (1 mg\/l = 1 ppm). \u0110\u00e2y l\u00e0 ch\u1ec9 s\u1ed1 c\u00f3 th\u1ec3 \u0111o \u0111\u01b0\u1ee3c b\u1eb1ng thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng nh\u01b0 b\u00fat \u0111o ho\u1eb7c th\u00f4ng qua h\u1ec7 th\u1ed1ng c\u1ea3m bi\u1ebfn t\u00edch h\u1ee3p tr\u00ean c\u00e1c m\u00e1y l\u1ecdc n\u01b0\u1edbc hi\u1ec7n \u0111\u1ea1i.<\/span><\/p>\n

\u00dd ngh\u0129a ch\u1ec9 s\u1ed1 TDS<\/b><\/h2>\n

\u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng th\u01b0\u1edbc \u0111o c\u01a1 b\u1ea3n \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 tinh khi\u1ebft c\u1ee7a n\u01b0\u1edbc. N\u01b0\u1edbc c\u00f3 ch\u1ec9 s\u1ed1 t\u1ed5ng ch\u1ea5t r\u1eafn h\u00f2a tan c\u00e0ng th\u1ea5p th\u00ec c\u00e0ng \u00edt t\u1ea1p ch\u1ea5t h\u00f2a tan, do \u0111\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 tinh khi\u1ebft h\u01a1n. C\u1ee5 th\u1ec3, n\u01b0\u1edbc c\u00f3 ch\u1ec9 s\u1ed1 d\u01b0\u1edbi 50 ppm \u0111\u00e3 \u0111\u01b0\u1ee3c l\u1ecdc kh\u00e1 k\u1ef9, trong khi m\u1ee9c l\u00fd t\u01b0\u1edfng cho n\u01b0\u1edbc u\u1ed1ng th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng t\u1eeb 50 \u0111\u1ebfn 300 ppm. N\u01b0\u1edbc c\u00f3 ch\u1ec9 s\u1ed1 d\u01b0\u1edbi 5 ppm th\u01b0\u1eddng l\u00e0 n\u01b0\u1edbc \u0111\u00e3 qua h\u1ec7 th\u1ed1ng l\u1ecdc RO ho\u1eb7c c\u00f4ng ngh\u1ec7 cao kh\u00e1c, g\u1ea7n nh\u01b0 kh\u00f4ng c\u00f2n b\u1ea5t k\u1ef3 kho\u00e1ng ch\u1ea5t n\u00e0o. \u0110\u00e2y l\u00e0 lo\u1ea1i n\u01b0\u1edbc c\u1ef1c tinh khi\u1ebft, th\u01b0\u1eddng d\u00f9ng trong ph\u00f2ng th\u00ed nghi\u1ec7m ho\u1eb7c thi\u1ebft b\u1ecb y t\u1ebf.<\/span><\/p>\n

\"tds-2\"<\/picture><\/p>\n

B\u00ean c\u1ea1nh \u0111\u00f3, ch\u1ec9 s\u1ed1 n\u00e0y c\u00f2n \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u00f9i v\u1ecb c\u1ee7a n\u01b0\u1edbc. N\u1ed3ng \u0111\u1ed9 ch\u1ea5t r\u1eafn h\u00f2a tan cao c\u00f3 th\u1ec3 khi\u1ebfn n\u01b0\u1edbc c\u00f3 v\u1ecb m\u1eb7n, \u0111\u1eafng, ho\u1eb7c c\u00f3 m\u00f9i kim lo\u1ea1i \u2013 l\u00e0m gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng c\u1ea3m quan c\u1ee7a n\u01b0\u1edbc u\u1ed1ng. Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu n\u1ed3ng \u0111\u1ed9 ch\u1ea5t r\u1eafn h\u00f2a tan qu\u00e1 th\u1ea5p, n\u01b0\u1edbc c\u00f3 th\u1ec3 tr\u1edf n\u00ean \u201cnh\u1ea1t nh\u1ebdo\u201d, thi\u1ebfu v\u1ecb, do kh\u00f4ng c\u00f2n kho\u00e1ng ch\u1ea5t t\u1ef1 nhi\u00ean.<\/span><\/p>\n

V\u1ec1 m\u1eb7t h\u00e0m l\u01b0\u1ee3ng kho\u00e1ng ch\u1ea5t, ch\u1ec9 s\u1ed1 n\u00e0y ph\u1ea3n \u00e1nh ph\u1ea7n n\u00e0o s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a c\u00e1c kho\u00e1ng ch\u1ea5t nh\u01b0 canxi, magie, natri… trong n\u01b0\u1edbc. Tuy nhi\u00ean, Ch\u1ec9 s\u1ed1 t\u1ed5ng h\u00f2a tan cao kh\u00f4ng \u0111\u1ed3ng ngh\u0129a v\u1edbi n\u01b0\u1edbc gi\u00e0u kho\u00e1ng ch\u1ea5t c\u00f3 l\u1ee3i v\u00ec n\u00f3 c\u0169ng c\u00f3 th\u1ec3 bao g\u1ed3m c\u00e1c ch\u1ea5t c\u00f3 h\u1ea1i nh\u01b0 nitrat, ch\u00ec, ho\u1eb7c h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1. Do \u0111\u00f3, m\u1ee9c ch\u1ec9 s\u1ed1 t\u1ed5ng h\u00f2a tan h\u1ee3p l\u00fd (100\u2013300 ppm) \u0111\u01b0\u1ee3c xem l\u00e0 t\u1ed1t cho s\u1ee9c kh\u1ecfe, v\u1eeba cung c\u1ea5p kho\u00e1ng ch\u1ea5t c\u1ea7n thi\u1ebft, v\u1eeba \u0111\u1ea3m b\u1ea3o an to\u00e0n.<\/span><\/p>\n

Ch\u1ec9 s\u1ed1 TDS bao nhi\u00eau l\u00e0 \u0111\u1ea1t chu\u1ea9n n\u01b0\u1edbc s\u1ea1ch?<\/b><\/h2>\n

C\u1ee5 th\u1ec3, n\u01b0\u1edbc c\u00f3 ch\u1ec9 s\u1ed1 h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t r\u1eafn trong n\u01b0\u1edbc t\u1eeb 5 ppm tr\u1edf xu\u1ed1ng \u0111\u01b0\u1ee3c coi l\u00e0 n\u01b0\u1edbc tinh khi\u1ebft \u2013 g\u1ea7n nh\u01b0 kh\u00f4ng ch\u1ee9a b\u1ea5t k\u1ef3 ch\u1ea5t r\u1eafn h\u00f2a tan n\u00e0o. \u0110\u00e2y l\u00e0 lo\u1ea1i n\u01b0\u1edbc th\u01b0\u1eddng \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1eb1ng c\u00f4ng ngh\u1ec7 l\u1ecdc ti\u00ean ti\u1ebfn nh\u01b0 RO (Reverse Osmosis), d\u00f9ng ph\u1ed5 bi\u1ebfn trong c\u00e1c thi\u1ebft b\u1ecb y t\u1ebf, ph\u00f2ng th\u00ed nghi\u1ec7m ho\u1eb7c trong gia \u0111\u00ecnh c\u00f3 nhu c\u1ea7u s\u1eed d\u1ee5ng n\u01b0\u1edbc c\u1ef1c s\u1ea1ch. Nh\u01b0ng lo\u1ea1i n\u01b0\u1edbc n\u00e0y ch\u1ee9a r\u1ea5t \u00edt ho\u1eb7c kh\u00f4ng c\u00f3 kho\u00e1ng ch\u1ea5t t\u1ef1 nhi\u00ean, n\u00ean n\u1ebfu s\u1eed d\u1ee5ng l\u00e2u d\u00e0i c\u00f3 th\u1ec3 kh\u00f4ng cung c\u1ea5p \u0111\u1ee7 kho\u00e1ng ch\u1ea5t thi\u1ebft y\u1ebfu cho c\u01a1 th\u1ec3.<\/span><\/p>\n

\"tds-3\"<\/picture><\/p>\n

Theo quy \u0111\u1ecbnh c\u1ee7a WHO v\u00e0 ti\u00eau chu\u1ea9n n\u01b0\u1edbc sinh ho\u1ea1t t\u1ea1i Vi\u1ec7t Nam, ch\u1ec9 s\u1ed1 t\u1ed5ng h\u00f2a tan \u0111\u1ea1t chu\u1ea9n cho n\u01b0\u1edbc u\u1ed1ng l\u00e0 d\u01b0\u1edbi 300 mg\/l\u00edt, m\u1ee9c t\u1ed1i \u0111a cho ph\u00e9p l\u00e0 500 mg\/l\u00edt. \u0110\u00e2y l\u00e0 ng\u01b0\u1ee1ng an to\u00e0n cho s\u1ee9c kh\u1ecfe, \u0111\u1ed3ng th\u1eddi \u0111\u1ea3m b\u1ea3o n\u01b0\u1edbc v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c h\u00e0m l\u01b0\u1ee3ng kho\u00e1ng ch\u1ea5t t\u1ef1 nhi\u00ean c\u1ea7n thi\u1ebft. Trong kho\u1ea3ng 100\u2013300 ppm, n\u01b0\u1edbc th\u01b0\u1eddng c\u00f3 v\u1ecb ngon, d\u1ec5 u\u1ed1ng v\u00e0 g\u00f3p ph\u1ea7n b\u1ed5 sung kho\u00e1ng ch\u1ea5t c\u00f3 l\u1ee3i nh\u01b0 canxi, magie, natri\u2026<\/span><\/p>\n

Tuy nhi\u00ean, khi ch\u1ec9 s\u1ed1 t\u1ed5ng h\u00f2a tan v\u01b0\u1ee3t ng\u01b0\u1ee1ng 500 ppm, n\u01b0\u1edbc b\u1eaft \u0111\u1ea7u c\u00f3 nguy c\u01a1 ch\u1ee9a nhi\u1ec1u ch\u1ea5t r\u1eafn h\u00f2a tan c\u00f3 h\u1ea1i nh\u01b0 kim lo\u1ea1i n\u1eb7ng, mu\u1ed1i v\u00f4 c\u01a1 ho\u1eb7c h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1, g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ee9c kh\u1ecfe n\u1ebfu s\u1eed d\u1ee5ng l\u00e2u d\u00e0i. \u1ede m\u1ee9c ch\u1ec9 s\u1ed1 cao, n\u01b0\u1edbc c\u00f3 th\u1ec3 c\u00f3 v\u1ecb m\u1eb7n, \u0111\u1eafng, th\u1eadm ch\u00ed g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 ti\u00eau h\u00f3a ho\u1eb7c t\u00edch t\u1ee5 \u0111\u1ed9c t\u1ed1 trong c\u01a1 th\u1ec3.<\/span><\/p>\n

C\u00e1c m\u1ee9c ch\u1ec9 s\u1ed1 TDS c\u00f3 trong n\u01b0\u1edbc<\/b><\/h2>\n

N\u1ebfu ch\u1ec9 s\u1ed1 t\u1eeb 0 \u0111\u1ebfn 5 ppm, n\u01b0\u1edbc \u0111\u01b0\u1ee3c xem l\u00e0 n\u01b0\u1edbc tinh khi\u1ebft tuy\u1ec7t \u0111\u1ed1i, kh\u00f4ng ch\u1ee9a ch\u1ea5t r\u1eafn h\u00f2a tan. Lo\u1ea1i n\u01b0\u1edbc n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u1ea1o ra t\u1eeb c\u00e1c h\u1ec7 th\u1ed1ng l\u1ecdc ti\u00ean ti\u1ebfn nh\u01b0 c\u00f4ng ngh\u1ec7 RO ho\u1eb7c ch\u01b0ng c\u1ea5t. Tuy n\u01b0\u1edbc r\u1ea5t s\u1ea1ch, nh\u01b0ng l\u1ea1i kh\u00f4ng cung c\u1ea5p kho\u00e1ng ch\u1ea5t, do \u0111\u00f3 kh\u00f4ng n\u00ean s\u1eed d\u1ee5ng l\u00e2u d\u00e0i l\u00e0m n\u01b0\u1edbc u\u1ed1ng ch\u00ednh h\u1eb1ng ng\u00e0y n\u1ebfu kh\u00f4ng c\u00f3 ch\u1ebf \u0111\u1ed9 b\u1ed5 sung kho\u00e1ng h\u1ee3p l\u00fd.<\/span><\/p>\n

Khi ch\u1ec9 s\u1ed1 t\u1eeb 5 \u0111\u1ebfn d\u01b0\u1edbi 50 ppm, n\u01b0\u1edbc v\u1eabn r\u1ea5t tinh khi\u1ebft, ph\u00f9 h\u1ee3p \u0111\u1ec3 u\u1ed1ng tr\u1ef1c ti\u1ebfp. \u0110\u00e2y th\u01b0\u1eddng l\u00e0 n\u01b0\u1edbc sau l\u1ecdc RO ch\u01b0a qua b\u1ed5 sung kho\u00e1ng, v\u00e0 v\u1eabn \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u1ec7 sinh, nh\u01b0ng thi\u1ebfu kho\u00e1ng ch\u1ea5t c\u00f3 l\u1ee3i cho c\u01a1 th\u1ec3.<\/span><\/p>\n

\"tds-4\"<\/picture><\/p>\n

Trong kho\u1ea3ng 50\u2013300 ppm, n\u01b0\u1edbc c\u00f3 m\u1ee9c ch\u1ec9 s\u1ed1 l\u00fd t\u01b0\u1edfng \u0111\u1ec3 s\u1eed d\u1ee5ng l\u00e0m n\u01b0\u1edbc u\u1ed1ng v\u00e0 sinh ho\u1ea1t. \u0110\u00e2y l\u00e0 m\u1ee9c \u0111\u01b0\u1ee3c WHO khuy\u1ebfn ngh\u1ecb, v\u00ec kh\u00f4ng ch\u1ec9 an to\u00e0n m\u00e0 c\u00f2n cung c\u1ea5p kho\u00e1ng ch\u1ea5t c\u1ea7n thi\u1ebft cho c\u01a1 th\u1ec3, nh\u01b0 canxi v\u00e0 magie. N\u01b0\u1edbc trong kho\u1ea3ng n\u00e0y th\u01b0\u1eddng c\u00f3 v\u1ecb d\u1ec5 ch\u1ecbu, kh\u00f4ng qu\u00e1 nh\u1ea1t c\u0169ng kh\u00f4ng g\u00e2y c\u1ea3m gi\u00e1c l\u1ea1 mi\u1ec7ng.<\/span><\/p>\n

T\u1eeb 300 \u0111\u1ebfn d\u01b0\u1edbi 500 ppm, n\u01b0\u1edbc v\u1eabn c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng nh\u01b0ng n\u00ean ki\u1ec3m tra k\u1ef9 ngu\u1ed3n g\u1ed1c, v\u00ec m\u1ed9t ph\u1ea7n ch\u1ea5t r\u1eafn h\u00f2a tan c\u00f3 th\u1ec3 \u0111\u1ebfn t\u1eeb t\u1ea1p ch\u1ea5t ho\u1eb7c \u00f4 nhi\u1ec5m. \u0110\u00e2y l\u00e0 ng\u01b0\u1ee1ng tr\u00ean m\u1ee9c l\u00fd t\u01b0\u1edfng, n\u00ean c\u1ea7n c\u00e2n nh\u1eafc khi s\u1eed d\u1ee5ng l\u00e2u d\u00e0i.<\/span><\/p>\n

N\u1ebfu ch\u1ec9 s\u1ed1 tr\u00ean 500 ppm, n\u01b0\u1edbc \u0111\u01b0\u1ee3c xem l\u00e0 \u00f4 nhi\u1ec5m, \u0111\u1eb7c bi\u1ec7t khi v\u01b0\u1ee3t qua 1000 ppm th\u00ec ho\u00e0n to\u00e0n kh\u00f4ng n\u00ean d\u00f9ng \u0111\u1ec3 u\u1ed1ng hay sinh ho\u1ea1t, v\u00ec nguy c\u01a1 ch\u1ee9a kim lo\u1ea1i n\u1eb7ng, mu\u1ed1i kho\u00e1ng d\u01b0 th\u1eeba, ho\u1eb7c c\u00e1c ch\u1ea5t c\u00f3 h\u1ea1i kh\u00e1c.<\/span><\/p>\n

C\u00e1ch ki\u1ec3m tra ch\u1ec9 s\u1ed1 TDS c\u00f3 trong n\u01b0\u1edbc<\/b><\/h2>\n

Vi\u1ec7c ki\u1ec3m tra t\u1ed5ng ch\u1ea5t r\u1eafn h\u00f2a tan trong n\u01b0\u1edbc l\u00e0 m\u1ed9t b\u01b0\u1edbc quan tr\u1ecdng gi\u00fap ng\u01b0\u1eddi d\u00f9ng \u0111\u00e1nh gi\u00e1 \u0111\u01b0\u1ee3c m\u1ee9c \u0111\u1ed9 tinh khi\u1ebft c\u0169ng nh\u01b0 s\u1ef1 an to\u00e0n c\u1ee7a ngu\u1ed3n n\u01b0\u1edbc \u0111ang s\u1eed d\u1ee5ng. V\u00e0 b\u00ean d\u01b0\u1edbi \u0111\u00e2y, Ho\u00e0ng H\u00e0 Mobile s\u1ebd cung c\u1ea5p cho b\u1ea1n 2 c\u00e1ch ki\u1ec3m tra ch\u1ec9 s\u1ed1 n\u00e0y nh\u00e9.<\/span><\/p>\n

Ki\u1ec3m tra b\u1eb1ng b\u00fat th\u1eed \u0111i\u1ec7n<\/b><\/h3>\n

B\u00fat th\u1eed ch\u1ec9 s\u1ed1 t\u1ed5ng ch\u1ea5t r\u1eafn h\u00f2a tan l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb nh\u1ecf g\u1ecdn, d\u1ec5 s\u1eed d\u1ee5ng, ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd \u0111o \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n c\u1ee7a n\u01b0\u1edbc. C\u00e1c ch\u1ea5t r\u1eafn h\u00f2a tan nh\u01b0 mu\u1ed1i kho\u00e1ng, kim lo\u1ea1i hay c\u00e1c ion trong n\u01b0\u1edbc s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng d\u1eabn \u0111i\u1ec7n c\u1ee7a n\u01b0\u1edbc. C\u00e0ng nhi\u1ec1u ch\u1ea5t r\u1eafn h\u00f2a tan, \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n c\u00e0ng cao, b\u00fat s\u1ebd t\u00ednh to\u00e1n v\u00e0 \u0111\u01b0a ra ch\u1ec9 s\u1ed1 t\u01b0\u01a1ng \u1ee9ng, \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb d\u01b0\u1edbi d\u1ea1ng ppm (ph\u1ea7n tri\u1ec7u) ho\u1eb7c mg\/l.<\/span><\/p>\n

\"tds-5\"<\/picture><\/p>\n

C\u00e1ch s\u1eed d\u1ee5ng b\u00fat \u0111o r\u1ea5t \u0111\u01a1n gi\u1ea3n, ph\u00f9 h\u1ee3p v\u1edbi m\u1ecdi \u0111\u1ed1i t\u01b0\u1ee3ng, k\u1ec3 c\u1ea3 ng\u01b0\u1eddi kh\u00f4ng c\u00f3 chuy\u00ean m\u00f4n k\u1ef9 thu\u1eadt. Ng\u01b0\u1eddi d\u00f9ng ch\u1ec9 c\u1ea7n b\u1eadt thi\u1ebft b\u1ecb, sau \u0111\u00f3 nh\u00fang \u0111\u1ea7u c\u1ea3m bi\u1ebfn c\u1ee7a b\u00fat v\u00e0o m\u1eabu n\u01b0\u1edbc c\u1ea7n \u0111o (\u0111\u1ea3m b\u1ea3o n\u01b0\u1edbc \u0111\u1ee7 ng\u1eadp ph\u1ea7n c\u1ea3m bi\u1ebfn). Sau v\u00e0i gi\u00e2y, ch\u1ec9 s\u1ed1 s\u1ebd hi\u1ec7n tr\u00ean m\u00e0n h\u00ecnh LCD. K\u1ebft qu\u1ea3 n\u00e0y gi\u00fap ng\u01b0\u1eddi d\u00f9ng \u0111\u00e1nh gi\u00e1 nhanh ch\u1ea5t l\u01b0\u1ee3ng ngu\u1ed3n n\u01b0\u1edbc \u0111ang s\u1eed d\u1ee5ng, t\u1eeb \u0111\u00f3 quy\u1ebft \u0111\u1ecbnh c\u00f3 n\u00ean l\u1ecdc th\u00eam, thay l\u00f5i l\u1ecdc hay chuy\u1ec3n sang s\u1eed d\u1ee5ng ngu\u1ed3n n\u01b0\u1edbc kh\u00e1c.<\/span><\/p>\n

M\u1ed9t s\u1ed1 m\u1eabu b\u00fat \u0111o hi\u1ec7n \u0111\u1ea1i c\u00f2n t\u00edch h\u1ee3p th\u00eam ch\u1ee9c n\u0103ng \u0111o nhi\u1ec7t \u0111\u1ed9 n\u01b0\u1edbc ho\u1eb7c t\u1ef1 \u0111\u1ed9ng t\u1eaft sau m\u1ed9t th\u1eddi gian kh\u00f4ng s\u1eed d\u1ee5ng, gi\u00fap ti\u1ebft ki\u1ec7m pin. Thi\u1ebft b\u1ecb n\u00e0y \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch cho c\u00e1c gia \u0111\u00ecnh s\u1eed d\u1ee5ng m\u00e1y l\u1ecdc n\u01b0\u1edbc RO, v\u00ec c\u00f3 th\u1ec3 d\u00f9ng \u0111\u1ec3 ki\u1ec3m tra hi\u1ec7u qu\u1ea3 l\u1ecdc b\u1eb1ng c\u00e1ch so s\u00e1nh ch\u1ec9 s\u1ed1 <\/span>TDS <\/b>tr\u01b0\u1edbc v\u00e0 sau khi l\u1ecdc.<\/span><\/p>\n

Ki\u1ec3m tra b\u1eb1ng b\u00fat \u0111i\u1ec7n ph\u00e2n<\/b><\/h3>\n

Khi s\u1eed d\u1ee5ng b\u00fat \u0111i\u1ec7n ph\u00e2n, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 quan s\u00e1t nh\u1eefng thay \u0111\u1ed5i m\u00e0u s\u1eafc trong n\u01b0\u1edbc \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh lo\u1ea1i ion kim lo\u1ea1i hay kho\u00e1ng ch\u1ea5t c\u00f3 m\u1eb7t. V\u00ed d\u1ee5, n\u1ebfu n\u01b0\u1edbc chuy\u1ec3n sang m\u00e0u n\u00e2u \u0111\u1ecf v\u00e0 c\u00f3 v\u00e1ng, \u0111i\u1ec1u n\u00e0y cho th\u1ea5y n\u01b0\u1edbc ch\u1ee9a nhi\u1ec1u ion Fe\u00b2\u207a ho\u1eb7c Fe\u00b3\u207a, c\u00f3 th\u1ec3 l\u00e0 d\u1ea5u hi\u1ec7u c\u1ee7a s\u1ef1 \u00f4 nhi\u1ec5m do s\u1eaft.\u00a0<\/span><\/p>\n

\"tds-6\"<\/picture><\/p>\n

Hay n\u1ebfu n\u01b0\u1edbc xu\u1ea5t hi\u1ec7n m\u00e0u xanh l\u01a1 v\u00e0 c\u00f3 v\u1ea9n k\u1ebft t\u1ee7a, \u0111\u00f3 c\u00f3 th\u1ec3 l\u00e0 do s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a ion Cu\u00b2\u207a, m\u1ed9t d\u1ea5u hi\u1ec7u cho th\u1ea5y n\u01b0\u1edbc b\u1ecb \u00f4 nhi\u1ec5m v\u1edbi \u0111\u1ed3ng. M\u00e0u s\u1eafc x\u00e1m nh\u1ea1t c\u00f3 th\u1ec3 ch\u1ec9 ra r\u1eb1ng n\u01b0\u1edbc ch\u1ee9a c\u00e1c ion Pb\u00b2\u207a ho\u1eb7c Hg\u00b2\u207a, l\u00e0 nh\u1eefng kim lo\u1ea1i n\u1eb7ng c\u1ef1c k\u1ef3 nguy hi\u1ec3m cho s\u1ee9c kh\u1ecfe. Trong tr\u01b0\u1eddng h\u1ee3p n\u01b0\u1edbc c\u00f3 m\u00e0u n\u00e2u \u0111en, \u0111i\u1ec1u n\u00e0y th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a ion Mn\u00b2\u207a, mangan, c\u00f3 th\u1ec3 l\u00e0m n\u01b0\u1edbc c\u00f3 m\u00f9i ho\u1eb7c t\u1ea1o c\u1eb7n.<\/span><\/p>\n

N\u1ebfu b\u00fat ch\u1ec9 s\u1ee7i b\u1ecdt m\u00e0 kh\u00f4ng t\u1ea1o k\u1ebft t\u1ee7a hay v\u1ea9n \u0111\u1ee5c, \u0111i\u1ec1u n\u00e0y cho th\u1ea5y n\u01b0\u1edbc g\u1ea7n nh\u01b0 l\u00e0 n\u01b0\u1edbc tinh khi\u1ebft, kh\u00f4ng ch\u1ee9a c\u00e1c ch\u1ea5t r\u1eafn h\u00f2a tan. Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu n\u01b0\u1edbc s\u1ee7i b\u1ecdt v\u00e0 t\u1ea1o k\u1ebft t\u1ee7a tr\u1eafng, \u0111i\u1ec1u n\u00e0y ch\u1ec9 ra s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a c\u00e1c ion Ca\u00b2\u207a ho\u1eb7c Ag\u207a, c\u00e1c kho\u00e1ng ch\u1ea5t c\u00f3 \u00edch nh\u01b0ng c\u00f3 th\u1ec3 g\u00e2y c\u1eb7n n\u1ebfu n\u1ed3ng \u0111\u1ed9 qu\u00e1 cao.<\/span><\/p>\n

M\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec3 c\u1ea3i thi\u1ec7n ch\u1ec9 s\u1ed1 TDS trong n\u01b0\u1edbc<\/b><\/h2>\n

\u0110\u1ec3 c\u1ea3i thi\u1ec7n ch\u1ec9 s\u1ed1 v\u00e0 \u0111\u1ea3m b\u1ea3o n\u01b0\u1edbc an to\u00e0n cho s\u1ee9c kh\u1ecfe, b\u1ea1n c\u00f3 th\u1ec3 t\u1eadn d\u1ee5ng r\u1ea5t nhi\u1ec1u c\u00e1ch kh\u00e1c nhau. V\u00e0 d\u01b0\u1edbi \u0111\u00e2y l\u00e0 ba th\u1ee7 thu\u1eadt ph\u1ed5 bi\u1ebfn \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong t\u1eebng tr\u01b0\u1eddng h\u1ee3p t\u01b0\u01a1ng th\u00edch b\u1ea1n nh\u00e9.<\/span><\/p>\n

S\u1eed d\u1ee5ng m\u00e1y l\u1ecdc n\u01b0\u1edbc RO<\/b><\/h3>\n

M\u00e1y l\u1ecdc n\u01b0\u1edbc RO ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd l\u1ecdc th\u1ea9m th\u1ea5u ng\u01b0\u1ee3c, trong \u0111\u00f3 n\u01b0\u1edbc s\u1ebd \u0111i qua m\u1ed9t h\u1ec7 th\u1ed1ng t\u1eeb 5 \u0111\u1ebfn 10 c\u1ea5p l\u1ecdc. Qu\u00e1 tr\u00ecnh l\u1ecdc n\u00e0y \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c giai \u0111o\u1ea1n \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c t\u1ea1p ch\u1ea5t c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn nh\u01b0 b\u1ee5i b\u1ea9n, b\u00f9n \u0111\u1ea5t, v\u00e0 c\u00e1c h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1. Sau khi n\u01b0\u1edbc \u0111\u00e3 \u0111\u01b0\u1ee3c l\u1ecdc s\u01a1 b\u1ed9, n\u00f3 ti\u1ebfp t\u1ee5c \u0111i qua m\u00e0ng l\u1ecdc RO v\u1edbi k\u00edch th\u01b0\u1edbc l\u1ed7 l\u1ecdc c\u1ef1c k\u1ef3 nh\u1ecf, ch\u1ec9 kho\u1ea3ng 0,0001 micromet \u2013 nh\u1ecf h\u01a1n g\u1ea5p nhi\u1ec1u l\u1ea7n so v\u1edbi \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a m\u1ed9t s\u1ee3i t\u00f3c. Ch\u00ednh v\u00ec v\u1eady, c\u00e1c ch\u1ea5t r\u1eafn h\u00f2a tan trong n\u01b0\u1edbc, bao g\u1ed3m h\u00f3a ch\u1ea5t, kim lo\u1ea1i n\u1eb7ng, vi khu\u1ea9n, vi r\u00fat v\u00e0 c\u00e1c t\u1ea1p ch\u1ea5t kh\u00e1c kh\u00f4ng th\u1ec3 l\u1ecdt qua m\u00e0ng l\u1ecdc n\u00e0y.<\/span><\/p>\n

\"tds-7\"<\/picture><\/p>\n

Sau khi qua m\u00e0ng l\u1ecdc RO, n\u01b0\u1edbc \u0111\u01b0\u1ee3c xem l\u00e0 n\u01b0\u1edbc tinh khi\u1ebft, v\u1edbi ch\u1ec9 s\u1ed1 t\u1ed5ng ch\u1ea5t r\u1eafn h\u00f2a tan r\u1ea5t th\u1ea5p, th\u01b0\u1eddng d\u01b0\u1edbi 5 ppm. \u0110i\u1ec1u n\u00e0y gi\u00fap lo\u1ea1i b\u1ecf h\u1ea7u h\u1ebft c\u00e1c kho\u00e1ng ch\u1ea5t c\u00f3 h\u1ea1i v\u00e0 nh\u1eefng ch\u1ea5t kh\u00f4ng mong mu\u1ed1n, \u0111\u1ea3m b\u1ea3o r\u1eb1ng n\u01b0\u1edbc \u0111\u1ea7u ra l\u00e0 s\u1ea1ch v\u00e0 an to\u00e0n cho ng\u01b0\u1eddi s\u1eed d\u1ee5ng. Tuy nhi\u00ean, m\u1ed9t nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a c\u00f4ng ngh\u1ec7 l\u1ecdc RO l\u00e0 n\u01b0\u1edbc sau l\u1ecdc s\u1ebd thi\u1ebfu m\u1ed9t s\u1ed1 kho\u00e1ng ch\u1ea5t c\u1ea7n thi\u1ebft cho c\u01a1 th\u1ec3. V\u00ec v\u1eady, nhi\u1ec1u h\u1ec7 th\u1ed1ng l\u1ecdc RO hi\u1ec7n \u0111\u1ea1i \u0111\u00e3 \u0111\u01b0\u1ee3c trang b\u1ecb th\u00eam c\u00e1c c\u1ea5p l\u1ecdc b\u1ed5 sung \u0111\u1ec3 t\u00e1i b\u1ed5 sung kho\u00e1ng ch\u1ea5t c\u1ea7n thi\u1ebft, gi\u00fap \u0111\u1ea3m b\u1ea3o n\u01b0\u1edbc v\u1eeba s\u1ea1ch l\u1ea1i v\u1eeba c\u00f3 l\u1ee3i cho s\u1ee9c kh\u1ecfe.<\/span><\/p>\n

Thay l\u00f5i l\u1ecdc n\u01b0\u1edbc<\/b><\/h3>\n

C\u00e1c m\u00e1y l\u1ecdc n\u01b0\u1edbc hi\u1ec7n \u0111\u1ea1i th\u01b0\u1eddng s\u1eed d\u1ee5ng nhi\u1ec1u c\u1ea5p l\u1ecdc v\u1edbi c\u00e1c lo\u1ea1i l\u00f5i kh\u00e1c nhau, bao g\u1ed3m l\u00f5i th\u00f4 (l\u1ecdc c\u1eb7n b\u1ea9n, t\u1ea1p ch\u1ea5t l\u1edbn), l\u00f5i carbon (lo\u1ea1i b\u1ecf m\u00f9i, ch\u1ea5t h\u1eefu c\u01a1), v\u00e0 l\u00f5i RO (l\u1ecdc c\u00e1c ch\u1ea5t r\u1eafn h\u00f2a tan c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1ecf). Khi l\u00f5i l\u1ecdc \u0111\u00e3 l\u00e0m vi\u1ec7c trong m\u1ed9t th\u1eddi gian d\u00e0i, ch\u00fang s\u1ebd b\u1ecb b\u00e3o h\u00f2a v\u00e0 kh\u00f4ng c\u00f2n kh\u1ea3 n\u0103ng l\u1ecdc s\u1ea1ch n\u01b0\u1edbc nh\u01b0 ban \u0111\u1ea7u. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn vi\u1ec7c ch\u1ec9 s\u1ed1 <\/span>TDS <\/b>trong n\u01b0\u1edbc c\u00f3 th\u1ec3 t\u0103ng l\u00ean, l\u00e0m gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc. N\u1ebfu l\u00f5i l\u1ecdc kh\u00f4ng \u0111\u01b0\u1ee3c thay th\u1ebf \u0111\u00fang h\u1ea1n, n\u01b0\u1edbc c\u00f3 th\u1ec3 ch\u1ee9a nhi\u1ec1u t\u1ea1p ch\u1ea5t, th\u1eadm ch\u00ed l\u00e0 vi khu\u1ea9n v\u00e0 kim lo\u1ea1i n\u1eb7ng, g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ee9c kh\u1ecfe.<\/span><\/p>\n

\"tds-8\"<\/picture><\/p>\n

Th\u1eddi gian thay l\u00f5i l\u1ecdc n\u01b0\u1edbc ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1 nh\u01b0 lo\u1ea1i l\u00f5i l\u1ecdc, ngu\u1ed3n n\u01b0\u1edbc \u0111\u1ea7u v\u00e0o (n\u01b0\u1edbc m\u00e1y, n\u01b0\u1edbc gi\u1ebfng, hay n\u01b0\u1edbc m\u01b0a), c\u0169ng nh\u01b0 m\u1ee9c \u0111\u1ed9 \u00f4 nhi\u1ec5m c\u1ee7a ngu\u1ed3n n\u01b0\u1edbc. Th\u00f4ng th\u01b0\u1eddng, c\u00e1c l\u00f5i th\u00f4 ho\u1eb7c l\u00f5i carbon c\u1ea7n thay th\u1ebf sau kho\u1ea3ng 6 th\u00e1ng \u0111\u1ebfn 1 n\u0103m, trong khi m\u00e0ng RO c\u00f3 th\u1ec3 k\u00e9o d\u00e0i t\u1eeb 1 \u0111\u1ebfn 2 n\u0103m tr\u01b0\u1edbc khi c\u1ea7n thay m\u1edbi. N\u1ebfu ngu\u1ed3n n\u01b0\u1edbc c\u1ee7a gia \u0111\u00ecnh b\u1ea1n c\u00f3 m\u1ee9c \u0111\u1ed9 \u00f4 nhi\u1ec5m cao, vi\u1ec7c thay l\u00f5i l\u1ecdc c\u00f3 th\u1ec3 c\u1ea7n th\u1ef1c hi\u1ec7n th\u01b0\u1eddng xuy\u00ean h\u01a1n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc lu\u00f4n \u1ed5n \u0111\u1ecbnh.<\/span><\/p>\n

K\u1ebft lu\u1eadn<\/b><\/h2>\n

Nh\u01b0 v\u1eady, Ho\u00e0ng H\u00e0 Mobile \u0111\u00e3 gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 ch\u1ec9 s\u1ed1 <\/span>TDS <\/b>th\u00f4ng qua kh\u00e1i ni\u1ec7m v\u00e0 \u00fd ngh\u0129a ch\u1ec9 s\u1ed1. Hy v\u1ecdng n\u1ed9i dung tr\u00ean s\u1ebd gi\u00fap b\u1ea1n c\u1ea3i thi\u1ec7n \u0111\u01b0\u1ee3c ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc \u0111ang s\u1eed d\u1ee5ng t\u1ea1i nh\u00e0 nh\u00e9.<\/span><\/p>\n

Xem th\u00eam:<\/b><\/p>\n