Author Archives: shengjie

In 1995 the United States BBA company developed the Interspun process and applied for a patent. Using this process, the surface of the fabric can be treated by hydroentangling, which can have a positive effect on the structure and properties of the fabric. In 1998 BBA signed a cooperation agreement with Fleissner, Fleissner for the […]

Spunlace composite technology research and development, not only to overcome some of the limitations of non-woven products, an increase of color varieties, greatly expanded spunlace non-woven fabric applications, but also to promote the spunlace technology and the entire non-woven process Development and improvement. (1) spunlace and wood pulp airlaid composite technology. Because the price of […]

Fiberglass stabbed filter felt (filter bag / bag) with reactive fluoride additives prepared mixed working fluid impregnated filter, the working fluid and filter fiber macromolecular structure of certain groups react, the formation of macromolecular chain, change Fiber and water, oil affinity performance, so that the surface tension of the filter to reduce to less than […]

There are two completely different views on the rate of desalination, but the fact is that this is ultimately determined by what kind of pollution the membrane element is subjected to, and if the pollution does not damage the desalination layer, the degree of recovery is high, There is damage to the extent of recovery […]

1) membrane separation technology used in the industry across the food industry, biochemical, pharmaceutical, petrochemical industry, power, paper, desalination, water treatment and other industries, different industries, different pollutants, different requirements, cleaning methods and pharmaceuticals are very different! 2) different pretreatment process will cause the film of the scale and loss of different treatment methods are […]

1, calcium carbonate scale In this case, In the case of a scale inhibitor addition system failure or the presence of an acid addition system leading to an increase in the feedwater pH, calcium carbonate is likely to be deposited and precipitated as soon as possible to prevent the formation of calcium carbonate scale deposits […]

Removal of contaminants can be achieved by chemical cleaning and physical flushing, and sometimes by changing operating conditions. As a general rule, cleaning should occur when one of the following conditions occurs. In this case, 1, under normal pressure, such as product water flow down to 10 to 15% of normal. In this case, 2, […]

After a period of normal operation, the reverse osmosis membrane element may be contaminated with suspended or insoluble substances that may be present in the feedwater. The most common of these contaminants are calcium carbonate scale, calcium sulfate scale, metal oxide scale, silicon Sediments and organic or biological sediments. In this case, The nature of […]

Reverse osmosis membrane fouling Possible contaminant location Pressure drop Inlet pressure Desalination rate decreases Metal oxide contamination (Fe, Mn, Cu, Ni, Zn) , The frontmost membrane element rapidly increases rapidly increasing rapidly Colloidal contamination (organic and inorganic mixtures) A, the most front-end membrane element gradually increased gradually increased slightly Mineral scale (Ca, Mg, Ba, Sr) […]