Reverse osmosis pure water equipment must be cleaned regularly to ensure its effluent efficiency. There are two methods that can be used here, one is physical and the other is chemical. What acid is better for cleaning the latter?

If our reverse osmosis pure water equipment stops using and maintaining for a long time, it is necessary to use maintenance solution (pesticide fungicide) to fill the water treatment equipment and carry out maintenance on the reverse osmosis equipment. The common secret recipe for pesticide fungicides (composite bag) is indoor formaldehyde 10 (molar mass), isothiazolidone 50mg/L, and sodium bisulfite 1 (molar mass).

Most environmental pollutants can be removed through timely organic chemical cleaning. If everything is normal during the preparation and treatment of reverse osmosis pure water equipment, there will be no uncontrollable reasons, such as changes in the source water body or environmental pollution caused by uncontrollable microbial strains, the cleaning frequency can be as low as possible. Sometimes incorrect operations can lead to environmental pollution of the membrane, such as high utilization or abnormal dosing devices. The water production rate and desalination rate of the membrane will decrease due to environmental pollution, and the pressure difference between the inlet and the concentrated water will increase. Membrane cleaning can activate some acid-base drugs (under pH 2-pH12 standard), and the maximum temperature of the membrane cleaning solution is 45 ℃.

A simple cleaning method is to clean the reverse osmosis membrane with bottom pressure for 30 minutes, which can restore the characteristics of the reverse osmosis membrane to a certain extent. However, long-term use of this method will still reduce the permeability coefficient. There is also a method of bottom pressure cleaning the surface of the membrane by mixing tap water and gas, which takes about 15 minutes. This method has very good practical results in the early stage.

Under all normal operating standards, reverse osmosis membranes are also likely to be contaminated by inorganic compound deposits, colloidal solutions, microbial strains, hydroxides, and other environmental pollutants. These chemicals accumulate on the surface of the membrane, causing a decrease in the load rate or desalination rate of water treatment equipment reverse osmosis equipment, an increase in pressure difference, and even irreparable damage to the membrane. Therefore, in order to better restore good permeability and desalination characteristics, organic chemical cleaning of the membrane must be carried out. Generally, it should be cleaned every 3-12 months. If it is necessary to clean it once a month, it indicates that the preparatory processing system software should be improved and the main operating parameters should be adjusted. If it is necessary to clean once every 1-3 months, it is necessary to improve the operating level of the machinery and equipment. It is difficult to distinguish whether it is necessary to improve the software of the preparatory processing system.

专业水处理的疑难问题，产品选型问题，可以单击下面的微信二维码电话联系贺工在线指导，长按微信二维码可自动识别添加贺工微信沟通解决您的疑难问题