{"id":4682,"date":"2016-04-13T04:12:49","date_gmt":"2016-04-13T04:12:49","guid":{"rendered":"https:\/\/kysearo.com\/?p=4682"},"modified":"2025-07-23T06:57:59","modified_gmt":"2025-07-23T06:57:59","slug":"how-multi-medium-filter-works","status":"publish","type":"post","link":"https:\/\/kysearo.com\/it\/how-multi-medium-filter-works\/","title":{"rendered":"Come funziona il filtro multimedio nei sistemi di desalinizzazione"},"content":{"rendered":"

To remove seaweed, twigs, colloid etc. that would be suspended particles in the sea water \u00a0our desalination systems choose to use multi medium filters, which is use of quartz sand, anthracite two filter material removal of suspended matters in the raw water, is a common fast filter equipment.<\/p>\n

How Multi-medium Filter Works<\/h2>\n

The water with suspended particles is sufficiently mixed with the flocculant to form a double layer of colloidal particles in the water. When the colloid particle flows through the filter material layer of the multi medium filter, the gap of the filter material plays the role of screening and filtering to make the suspended matter easy to adsorb on the surface of the filter material.<\/p>\n

When a certain amount of dirt is trapped in the surface of the filter, the filter is formed, and the pressure difference between the filter and the filter will be increased. At this time need to use reverse flow backwashing filter, loosen the filter g. and smokeless coal suspension, so that the adhesion on the surface of quartz sand, anthracite interception stripping and is carried by a stream of water, to restore the filtering function. Used in the project of dual media is placed in the upper part of the filter layer of the lighter particle anthracite, lower for the high proportion of small particles of quartz sand. Only in this way can give full play to the filter efficiency, improve the capacity of sewage interception.<\/p>\n

How to Maintain Multi Medium Filter<\/h2>\n

1. Daily operation check:<\/h3>\n

The operator should regularly inspect the equipment on the spot every hour. Record the results of the inspection, together with the operation records to give a summary, as a regular maintenance of the information.<\/p>\n\n\n\n\n\n\n
Inspection cycle<\/td>\nInspection items<\/td>\nCheck method or check point<\/td>\nRemarks<\/td>\n<\/tr>\n
Once per shift<\/td>\nCheck whether there is leakage<\/td>\nsealing parts and the auxiliary valve whether is leaking.<\/td>\nIf there is vibration, identify the cause, take timely measures to solve<\/p>\n

Check flow<\/td>\n<\/tr>\n

<\/td>\nCheck whether there is vibration<\/td>\nWhen the valve is closed, whether there is abnormal vibration<\/td>\nIf there is vibration, identify the cause, take timely measures to solve<\/td>\n<\/tr>\n
Once a month<\/td>\nCheck flow<\/td>\nCheck the flow meter to verify that the flow is normal.<\/td>\nIf the flow display is not normal, timely identify the reasons, troubleshooting<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

2. Regular inspection:<\/h3>\n

Equipment to carry out regular inspections, the purpose is to ensure the safe operation of the system over a long period of time. The equipment is relatively large equipment, inspection operations require a longer time. In order to shorten the time to check the parking time, should try to and the original water treatment equipment and other equipment maintenance at the same time, if found abnormal, should be timely treatment.<\/p>\n\n\n\n\n\n\n\n\n
No.<\/td>\nInspection items<\/td>\nInspection method<\/td>\n<\/tr>\n
1<\/td>\nPacking inspection<\/td>\nCheck quartz sand anthracite filter material, such as quartz sand anthracite pollution is serious, should all be replaced.<\/td>\n<\/tr>\n
2<\/td>\nFilter cap inspection<\/td>\nRemove the filler, rinse with water, the filter cap on the porous plate to check, found damaged or loose, timely replacement or fixed.<\/td>\n<\/tr>\n
3<\/td>\nRubber lining inspection<\/td>\nIf found lining layer has a bubble, crack, peel, micropore to be repaired<\/td>\n<\/tr>\n
4<\/td>\nInternal fastener inspection<\/td>\nCheck the bolts, nuts and other fasteners in the filter, such as loose should be tightened.<\/td>\n<\/tr>\n
5<\/td>\nManhole seal check<\/td>\nReplacement of deformation of the manhole gasket, bolt and nut dipped in the cleaning oil, rust cleaning; manhole cover mounting bolt nut butter.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

3.\u00a0Filter replacement:<\/h3>\n\n\n\n\n\n\n\n\n\n\n
No.<\/td>\nOperation steps<\/td>\nOperation method<\/td>\n<\/tr>\n
1<\/td>\ndrainage<\/td>\nWater accumulation inside the filter<\/td>\n<\/tr>\n
2<\/td>\nUnloading<\/td>\nOpen the filter backwash discharge port, from a small amount of water will fill out the mouth.<\/td>\n<\/tr>\n
3<\/td>\nclearing<\/td>\nDrain the water filter, open the manhole, into the filter, filter out the remaining filter<\/td>\n<\/tr>\n
4<\/td>\ncleaning<\/td>\nClean the inside of the filter with a rag<\/td>\n<\/tr>\n
5<\/td>\nFilling material<\/td>\nClosed discharge port, according to the provisions of high fill fill filter material, the first loaded quartz sand, after loading and unloading flat, and then loaded with anthracite<\/td>\n<\/tr>\n
6<\/td>\nClosed filter<\/td>\nCheck the loading height of filter material to meet the requirements, closed on manhole<\/td>\n<\/tr>\n
7<\/td>\nWashing filter<\/td>\nAccording to the step filter backwash flushing filter, to drainage turbidity less than 1 degrees<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Filter material:
\n(1) Anthracite (upper layer): particle size: 0.8-1.2mm; thickness: 400mm
\n(2) Quartz sand (lower layer): particle size: 0.4-0.65mm; thickness: 800mm<\/p>\n

<\/div>\n<\/div>
<\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"To remove seaweed, twigs, colloid etc. that would be suspended [...]","protected":false},"author":1,"featured_media":4688,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[83],"class_list":["post-4682","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-desalination-technology","tag-how-multi-medium-filter-works"],"yoast_head":"\nHow Multi Medium Filter Works In Desalination Systems<\/title>\n<meta name=\"description\" content=\"To remove seaweed, twigs, colloid etc. our desalination systems choose to use multi medium filters at first, to find how multi medium filter works here.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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