多介質(zhì)過濾器主要利用多種過濾介質(zhì)，在一定的壓力下，把濁度較高的水通過濾質(zhì)，有效的截留除去水中的懸浮物、有機物、膠質(zhì)顆粒、氯、嗅味及部分重金屬離子等，終達到降低水濁度的一種過濾設備。不過有用戶在使用過程中發(fā)現(xiàn)過濾器的出水效果并不是很好，那是什么原因?qū)е铝诉@一現(xiàn)象呢？
Multimedia filters mainly use a variety of media, under a certain pressure, the turbidity of water through the filter, effectively intercept and remove suspended matter, organic matter, colloid particles, chlorine, odor and some heavy metal ions in the water, and ultimately achieve a high-efficiency filtration equipment to reduce water turbidity. However, some users find that the effluent effect of the filter is not very good in the process of using. What is the reason for this phenomenon?
1.水流的均勻性
1. Uniformity of flow
無論是運行或反洗時，都要求各截面的水流分布均勻。要使水流均勻，主要是排水系統(tǒng)要良好。只有水流的均勻性，才能使過濾效果良好。
Whether in operation or backwashing, uniform distribution of water flow in each section is required. In order to make the water flow uniform, the drainage system should be good. Only the uniformity of water flow can make the filtering effect good.
2.濾速
2. filtration rate
多介質(zhì)過濾器的濾速不能過于慢。因為濾速過慢，單位過濾面積的處理水量就小。為了達到一定的出水量，勢必要增大過濾面積，也就要增加投資。但如果濾速過快，不僅增加了水頭損失，過濾周期也會縮短，并會使出水的質(zhì)和量下降。濾速一般選擇10~12m/h。
Multimedia filters should not be too slow. Because the filtration speed is too slow, the amount of treated water per unit filtration area is small. In order to achieve a certain amount of effluent, it is necessary to increase the filtering area and investment. But if the filtration speed is too fast, not only the head loss is increased, but also the filtration cycle is shortened, and the quality and quantity of the effluent will be reduced. The filtration rate is usually 10-12 m/h.
3.反洗
3. backwash
反洗是用以除去濾層中的泥渣，以恢復濾料的過濾能力。為了把泥渣沖洗干凈，必須要有一定的反洗速度和時間。這與濾料大小及相對密度、膨脹率及水溫都有關系。反洗時，濾層的膨脹率為25%~50%，反洗時間5~6min。只有反洗效果好，才能使砂濾器運行良好。
Backwashing is used to remove the sludge in the filter layer to restore the filtering capacity of the filter material. In order to clean the sludge, it is necessary to have a certain speed and time of backwashing. This is related to the size and relative density of filter media, expansion rate and water temperature. When backwashing, the expansion rate of the filter is 25%-50%, and the backwashing time is 5-6 minutes. Only when the backwashing effect is good can the sand filter run well.
看了小編的介紹，相信您對影響多介質(zhì)過濾器出水效果的幾個因素也有了相關的了解。當然若您還有其他疑問，可在文末留言，小編也會及時給您回復的！
After reading the introduction of Xiaobian, I believe you have some knowledge about several factors that affect the effluent effect of multi-media filters. Of course, if you have other questions, you can leave a message at the end of the article, Xiaobian will reply to you in time!
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