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一、膜的污染与清洗利用反渗透装置对各种液体进行处理时,膜不可避免地要受到污染,这种污染是妨碍装置正常运转的主要因素之一。膜污染的问题要能得到简单解决,那么在操作或者就膜本身的性能而言是不存在什么技术问题的,而事实上膜往往被污染得很历害,甚至导致膜本身的性能急剧下降。膜寿命也因此受到很大影响。如对被处理液进行前处理。可使膜被污染的程度得到一定的缓解。然而清洗膜面污染的工作是不可完全避免的。膜被污染的原因大体有以下几种情况,①在原始
1. Membrane Contamination and Cleaning When a reverse osmosis device is used to treat various liquids, the membrane is inevitably contaminated. This contamination is one of the main factors that hinder the normal operation of the device. The problem of membrane fouling can be solved simply, so there is no technical problem in the operation or in terms of the performance of the membrane itself. In fact, the membrane is often contaminated very badly, and even results in a sharp drop in the performance of the membrane itself. The membrane life is also greatly affected. For example, pretreat the treated liquid. The degree of contamination of the membrane can be alleviated. However, cleaning the membrane surface is not completely avoided. The reasons for the contamination of the membrane are generally the following: 1