Garnet filter material is a kind of natural ore, which belongs to metamorphic rock. It is hard, wear-resistant, acid and alkali resistant, and has a significant proportion. It is commonly used as the bottom bedding material in sewage treatment filters in China.
"Dripping water can wear through stone" Anything will be worn out after a long time of use, and garnet filter material is no exception. First, impurities will continuously accumulate on the surface of garnet filter material after a long time of use, reducing the filtering effect; Second, after continuous backwashing, the edges and corners of garnet filter material become less sharp, and the wear resistance is reduced. Regular maintenance is required to maintain good filtering effect and prolong the service life of garnet filter material.
(1) Unused garnet filter material shall not be exposed to the sun for a long time during storage, which may easily cause crack and make the hardness and compression resistance of garnet filter material worse. Try to put it separately in a clean place with less dust content. Avoid mixing impurities, and prevent mixing with other filter materials or substances to affect the use.
(2) Avoid mixing layer with other filter materials during paving. The thickness of the paving material is determined according to the severity of the sewage and the main impurities in the sewage.
(3) There are too many impurities adsorbed on the surface of the long used garnet filter material, which affects the filtering effect. It should be cleaned regularly and replenished regularly, usually once to twice a year.
Garnet filter material, as a heavy medium filter material, meets the relevant requirements of the national water treatment filter material standard CJ/T43-2005 for high-density filter materials. It can filter 10 microns of impurities in the water. The sewage treatment grade reaches the Class III discharge standard. It is an ideal material for sewage treatment. Have you mastered how to maintain the garnet filter material?
