¿Cuál es la diferencia entre la membrana RO y la membrana de nanofiltración?

Comprensión de la membrana de nanofiltración

La Membrana de nanofiltración es un nuevo tipo de membrana de separación que se desarrolló a fines de la década de 1980. Su corte de peso molecular se encuentra entre el de la membrana de RO y la membrana de ultrafiltración, típicamente entre 100 y 2000Da. Se especula que la membrana de nanofiltración tiene una estructura de poros de aproximadamente 1nm, de ahí su nombre. La mayoría de las membranas de nanofiltración Son membranas compuestas, con una capa de separación de superficies compuesta de polielectrolitos, lo que les da una cierta tasa de retención de sales inorgánicas. La mayoría de las membranas de nanofiltración actualmente en el mercado son membranas compuestas con una capa de separación ultrafina con un diámetro de poro de tamaño nanométrico, formada mediante métodos de polimerización interfacial y condensación en una membrana de soporte microporosa.

Diferencia entre membrana RO y membrana de nanofiltración

La membrana RO es actualmente la tecnología de filtración más refinada. Puede bloquear todas las moléculas inorgánicas y orgánicas disueltas con pesos moleculares relativos superiores a 100 y permitir que las moléculas de agua pasen a través para convertirse en agua pura. La tasa de eliminación de iones divalentes en el agua es alta, hasta 99.5%, mientras que la tasa de eliminación de iones monovalentes también es más que 95%.

La membrana RO es ampliamente utilizada para la preparación de agua espacial, agua pura y agua ultrapura; concentración, separación, purificación y preparación de agua pura en procesos químicos; desalinización de agua de mar y agua salobre; purificación y reciclaje de agua en industrias como la fabricación de papel, galvanoplastia e impresión y teñido.

La tecnología de separación de membrana de nanofiltración se puede aplicar al ablandamiento de la calidad del agua, reduciendo la concentración de TDS, eliminando el color y la materia orgánica. Su área de aplicación más grande es El ablandamiento del agua potable y la eliminación de materia orgánica. Con la creciente gravedad de la contaminación del agua, las personas están prestando cada vez más atención a la calidad del agua potable.

El procesamiento tradicional del agua potable utiliza principalmente la coagulación, la sedimentación, la filtración de arena y la desinfección con cloro para eliminar los sólidos en suspensión y las bacterias en el agua, pero el efecto de eliminación sobre varios productos químicos disueltos es bajo. Con la escasez cada vez más grave de recursos hídricos, el empeoramiento de la contaminación ambiental y la mejora de los estándares de agua potable en varios países, la "tecnología de tratamiento de aguas profundas para eliminar varios productos químicos orgánicos y dañinos" que puede eliminar diversas materias orgánicas y productos químicos nocivos está recibiendo más atención.

Además, el uso de la tecnología de nanofiltración puede purificar y concentrar reactivos bioquímicos; separar aceite y agua; recuperar etilenglicol; recuperar sulfato de cobre; separar y concentrar líquidos orgánicos e inorgánicos; purificar, concentrar, y tintes desalt; separar y concentrar la medicina tradicional china; concentrar el caldo de fermentación. Como un nuevo tipo de membrana de separación, la membrana de nanofiltración se ha utilizado ampliamente para su excelente rendimiento de separación, y desempeñará un papel de conducción en la reducción del consumo de energía, protección del medio ambiente, optimización de procesos, Y DESARROLLO econÃ³mico.

Noticias relacionadas

¿La membrana RO requiere ultrafiltración por delante?
December 27, 2023La membrana RO requiere ultrafiltración antes de instalarLa membrana RO tiene requisitos estrictos sobre la calidad del agua. Si el agua no cumple con los requisitos y fluye a través de la membrana de membrana RO...view
¿Cuánto sabe sobre las membranas de nanofiltración?
December 27, 2023Las membranas de nanofiltración se utilizan cada vez más en diversas aplicaciones. Al aplicar membranas de nanofiltración, hay varias consideraciones importantes. Sin una comprensión adecuada de...view
2018 GDWater Guangdong
October 12, 2018El 2 de abril de 2018, 2018 Exposición Internacional de Tecnología y Equipos de Tratamiento de Agua de GDWater Guangdong se llevó a cabo en el Guangzhou Poly World Trade Expo Center. Jiangsu Jiuwu High-Tech Co., Ltd. fue B...view
Recuperación de residuos de ácido y álcali por proceso de membrana
July 17, 2020El ácido residual y el álcali son nombres comunes, pero es complicado nacer. Debido a que provienen de diferentes industrias, la composición es compleja, y muchos de ellos son desechos peligrosos. Ácido de desecho...view

Contáctenos

86-25-58849045
86-25-58749295
Jiuwu@jiuwu.com
N. ° 9 Yuansi Road, Pukou, Nanjing, Jiangsu, China 211808

[QUERYS RESOURCE ID #56][0.00016 ms]	USE `jiuwumembrane_co` (0)
[0.00007 ms]	SET NAMES utf8 (0)
[0.00007 ms]	SELECT * FROM `scn_black` WHERE type=1 (0)
[0.00011 ms]	SELECT * FROM `scn_language` WHERE is_enabled='1' AND subdomain ='es' LIMIT 1 (1)
[0.00048 ms]	SELECT * FROM `scn_content` WHERE uri = 'what-is-the-difference-between-ro-membrane-and-nanofiltration-membrane' AND lang = 'es' AND (childs_num >= '0' OR is_freeze_url = 1) ORDER BY `redirect` ASC LIMIT 1 (1)
[0.00020 ms]	SELECT * FROM `scn_content` WHERE id = '1998' LIMIT 1 (1)
[0.00007 ms]	SELECT * FROM `scn_content_template` WHERE id = '' LIMIT 1 (0)
[0.00015 ms]	SHOW CREATE TABLE scn_content (1)
[0.00030 ms]	UPDATE `scn_content` SET `id`=1998,`views_num`=1346,`update_time`=1769971691 WHERE id = '1998' (1)
[0.00007 ms]	SELECT * FROM `scn_content_var` WHERE 1 AND content_id IN (1998) ORDER BY `id` ASC (0)
[0.00017 ms]	SELECT * FROM `scn_content` WHERE id = '1664' LIMIT 1 (1)
[0.00008 ms]	SELECT * FROM `scn_user` WHERE md5(concat('user' ,id, salt)) = '' LIMIT 1 (0)
[0.00005 ms]	SELECT * FROM `scn_content_var` WHERE 1 AND content_id IN (1664) ORDER BY `id` ASC (0)
[0.00007 ms]	SELECT * FROM `scn_content_template` WHERE 1 AND id = '60' ORDER BY `id` ASC LIMIT 1 (1)
[0.00028 ms]	SELECT `name`, `html` FROM `scn_content_template` (43)
[0.00017 ms]	SELECT `name`, `html` FROM `scn_content_template_chunk` (6)
[0.00011 ms]	SELECT `name`, `script` FROM `scn_content_template_snippet` (19)
[0.00030 ms]	SELECT * FROM `scn_content` WHERE id IN (0,1664,1711,1998) ORDER BY `path_ids` ASC (3)
[0.00024 ms]	SELECT * FROM `scn_content` WHERE uri = 'contact' AND lang = 'en' LIMIT 1 (0)
[0.00006 ms]	SELECT * FROM `scn_content_var` WHERE 1 AND content_id IN (0) ORDER BY `id` ASC (0)
[0.00008 ms]	SELECT * FROM `scn_language` WHERE is_enabled = 1 ORDER BY `rank` ASC, `id` ASC (5)
[0.00029 ms]	SELECT * FROM `scn_content` WHERE uri = 'company' AND lang = 'es' LIMIT 1 (1)
[0.00006 ms]	SELECT * FROM `scn_content_var` WHERE 1 AND content_id IN (1661) ORDER BY `id` ASC (0)
[0.00045 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND parent_id = '1661' ORDER BY `rank` ASC, `id` ASC (9)
[0.00006 ms]	SELECT * FROM `scn_content_var` WHERE content_id IN (1674,1682,1683,1684,1685,1687,1703,1704,1708) (1)
[0.00025 ms]	SELECT * FROM `scn_content` WHERE uri = 'news' AND lang = 'es' LIMIT 1 (1)
[0.00007 ms]	SELECT * FROM `scn_content_var` WHERE 1 AND content_id IN (1662) ORDER BY `id` ASC (0)
[0.00028 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND parent_id = '1662' ORDER BY `rank` ASC, `id` ASC (3)
[0.00005 ms]	SELECT * FROM `scn_content_var` WHERE content_id IN (1671,1673,1672) (0)
[0.00023 ms]	SELECT * FROM `scn_content` WHERE uri = 'contact-us' AND lang = 'es' LIMIT 1 (1)
[0.00006 ms]	SELECT * FROM `scn_content_var` WHERE 1 AND content_id IN (1663) ORDER BY `id` ASC (20)
[0.00630 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND is_hidemenu = 0 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND level <= '3' ORDER BY `rank` ASC, `id` ASC (277)
[0.00019 ms]	SELECT * FROM `scn_content` WHERE 1 AND id = '1711' ORDER BY `id` ASC LIMIT 1 (1)
[0.00017 ms]	SELECT * FROM `scn_content` WHERE 1 AND id = '1664' ORDER BY `id` ASC LIMIT 1 (1)
[0.00007 ms]	SELECT * FROM `scn_advert` WHERE code = 'new_banner' LIMIT 1 (1)
[0.00026 ms]	SELECT * FROM `scn_advert_element` WHERE lang = 'es' AND advert_id = '14' AND is_enabled AND start_time <= '1769971691' AND (end_time >= '1769971691' OR end_time = 0) ORDER BY `rank` ASC, `id` DESC LIMIT 1 (1)
[0.00030 ms]	SELECT * FROM `scn_content` WHERE uri = '/' AND lang = 'es' LIMIT 1 (1)
[0.00007 ms]	SELECT * FROM `scn_content_var` WHERE 1 AND content_id IN (1654) ORDER BY `id` ASC (8)
[0.00492 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND id != '1998' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND tpl_id = '60' ORDER BY RAND() ASC, `rank` ASC, `id` ASC LIMIT 0,4 (4)
[0.00058 ms]	SELECT * FROM `scn_content_var` WHERE content_id IN (2024,2048,1717,1891) (0)
[0.00270 ms]	SELECT count(*) AS result FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND id != '1998' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND tpl_id = '60' AND 1 LIMIT 1 (1)
[0.00055 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND parent_id = '1664' ORDER BY `rank` ASC, `id` ASC (7)
[0.00009 ms]	SELECT * FROM `scn_content_var` WHERE content_id IN (1681,1702,1695,1678,1711,1705,1680) (3)
[0.00066 ms]	SELECT * FROM `scn_content` WHERE 1 AND parent_id IN (1702) ORDER BY `id` ASC (4)
[0.00028 ms]	SELECT * FROM `scn_content` WHERE 1 AND parent_id IN (1695) ORDER BY `id` ASC (4)
[0.00028 ms]	SELECT * FROM `scn_content` WHERE 1 AND parent_id IN (1678) ORDER BY `id` ASC (4)
[0.00044 ms]	SELECT * FROM `scn_content` WHERE uri = 'ceramic-membranes' AND lang = 'es' LIMIT 1 (1)
[0.00009 ms]	SELECT * FROM `scn_content_var` WHERE 1 AND content_id IN (1665) ORDER BY `id` ASC (1)
[0.00043 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND parent_id = '1665' ORDER BY `rank` ASC, `id` ASC (6)
[0.00010 ms]	SELECT * FROM `scn_content_var` WHERE content_id IN (1688,1689,1690,1700,1707,1712) (10)
[0.00041 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND tpl_id = '65' AND parent_id = '1688' ORDER BY `rank` ASC, `id` ASC (3)
[0.00008 ms]	SELECT * FROM `scn_content_var` WHERE content_id IN (1748,1770,1771) (6)
[0.00040 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND tpl_id = '65' AND parent_id = '1689' ORDER BY `rank` ASC, `id` ASC (3)
[0.00008 ms]	SELECT * FROM `scn_content_var` WHERE content_id IN (1749,1772,1773) (6)
[0.00035 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND tpl_id = '65' AND parent_id = '1690' ORDER BY `rank` ASC, `id` ASC (0)
[0.00007 ms]	SELECT * FROM `scn_content_var` WHERE content_id IN (0) (0)
[0.00037 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND tpl_id = '65' AND parent_id = '1700' ORDER BY `rank` ASC, `id` ASC (0)
[0.00049 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND tpl_id = '65' AND parent_id = '1707' ORDER BY `rank` ASC, `id` ASC (0)
[0.00036 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND tpl_id = '65' AND parent_id = '1712' ORDER BY `rank` ASC, `id` ASC (0)
[0.00040 ms]	SELECT * FROM `scn_content` WHERE uri = 'organic-membranes' AND lang = 'es' LIMIT 1 (1)
[0.00008 ms]	SELECT * FROM `scn_content_var` WHERE 1 AND content_id IN (1666) ORDER BY `id` ASC (1)
[0.00043 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND tpl_id not in('32') AND parent_id = '1666' ORDER BY `rank` ASC, `id` ASC (6)
[0.00013 ms]	SELECT * FROM `scn_content_var` WHERE content_id IN (1691,1692,1694,1701,1713,1714) (9)
[0.00047 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND tpl_id not in('32') AND parent_id = '1691' ORDER BY `rank` ASC, `id` ASC (3)
[0.00011 ms]	SELECT * FROM `scn_content_var` WHERE content_id IN (1925,1924,2089) (5)
[0.00054 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND tpl_id not in('32') AND parent_id = '1692' ORDER BY `rank` ASC, `id` ASC (0)
[0.00057 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND tpl_id not in('32') AND parent_id = '1694' ORDER BY `rank` ASC, `id` ASC (0)
[0.00036 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND tpl_id not in('32') AND parent_id = '1701' ORDER BY `rank` ASC, `id` ASC (0)
[0.00034 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND tpl_id not in('32') AND parent_id = '1713' ORDER BY `rank` ASC, `id` ASC (0)
[0.00032 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND tpl_id not in('32') AND parent_id = '1714' ORDER BY `rank` ASC, `id` ASC (0)
[0.00321 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND tpl_id = '60' ORDER BY `publish_time` DESC LIMIT 0,3 (3)
[0.00008 ms]	SELECT * FROM `scn_content_var` WHERE content_id IN (2086,2081,2084) (0)
[0.00041 ms]	SELECT * FROM `scn_content` WHERE uri = 'sitemap' AND lang = 'es' LIMIT 1 (1)
[0.00007 ms]	SELECT * FROM `scn_content_var` WHERE 1 AND content_id IN (1657) ORDER BY `id` ASC (0)
[0.00049 ms]	SELECT * FROM `scn_content` WHERE uri = 'privacy-policy' AND lang = 'es' LIMIT 1 (1)
[0.00007 ms]	SELECT * FROM `scn_content_var` WHERE 1 AND content_id IN (1659) ORDER BY `id` ASC (0)
[0.00062 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND tpl_id not in('32') AND parent_id = '1665' ORDER BY `rank` ASC, `id` ASC (6)
[0.00046 ms]	SELECT * FROM `scn_content` WHERE uri = 'application' AND lang = 'es' LIMIT 1 (1)
[0.00007 ms]	SELECT * FROM `scn_content_var` WHERE 1 AND content_id IN (1667) ORDER BY `id` ASC (1)
[0.00056 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND tpl_id not in('32') AND parent_id = '1667' ORDER BY `rank` ASC, `id` ASC (7)
[0.00008 ms]	SELECT * FROM `scn_content_var` WHERE content_id IN (1696,1697,1698,1699,1706,1709,1710) (7)
[0.00037 ms]	SELECT * FROM `scn_content` WHERE uri = 'resources' AND lang = 'es' LIMIT 1 (1)
[0.00047 ms]	SELECT * FROM `scn_content` WHERE is_enabled = 1 AND lang = 'es' AND (publish_time <= '1769971691' OR publish_time = 0) AND (expired_time >= '1769971691' OR expired_time = 0) AND tpl_id not in('32') AND parent_id = '1664' ORDER BY `rank` ASC, `id` ASC (7)
Total quantity:83, Total process time:0.03686905 ms

[FILES LOADED][0] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Model.php
[1] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Bootstrap.php
[2] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Locale.php
[3] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Object.php
[4] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Config\Interface.php
[5] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Config\Php.php
[6] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Cache\Interface.php
[7] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Cache\File.php
[8] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Config.php
[9] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Controller\Router\Route\Interface.php
[10] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Controller\Action.php
[11] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Db\Table\Abstract.php
[12] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Db\Table.php
[13] C:\wwwroot\jiuwumembrane.com\models\Table.php
[14] C:\wwwroot\jiuwumembrane.com\models\Abstract\Model.php
[15] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Db.php
[16] C:\wwwroot\jiuwumembrane.com\models\Abstract\Tree.php
[17] C:\wwwroot\jiuwumembrane.com\models\Abstract\User.php
[18] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Cookie.php
[19] C:\wwwroot\jiuwumembrane.com\librarys\Suco\View.php
[20] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Helper.php
[21] C:\wwwroot\jiuwumembrane.com\librarys\Suco\View\Template.php
[22] C:\wwwroot\jiuwumembrane.com\librarys\Suco\File.php
[23] C:\wwwroot\jiuwumembrane.com\librarys\Suco\Helper\Interface.php
Total quantity:24

Use Memory: 8.4MB

Time-consuming: 1.14613 ms

¿Cuál es la diferencia entre la membrana RO y la membrana de nanofiltración?

Comprensión de la membrana de nanofiltración

Diferencia entre membrana RO y membrana de nanofiltración

Noticias relacionadas

¿La membrana RO requiere ultrafiltración por delante?

¿Cuánto sabe sobre las membranas de nanofiltración?

2018 GDWater Guangdong

Recuperación de residuos de ácido y álcali por proceso de membrana

[QUERYS RESOURCE ID #56]

[FILES LOADED]