The paper industry itself is very serious pollution, will consume a lot of natural resources in the paper process, and even more serious is that the paper industry will also produce a large amount of wastewater, so the development of the paper industry has been greatly hindered. In order to promote the healthy development of the paper industry. It is necessary to study the process technology of zero discharge of papermaking wastewater to control the emissions of papermaking wastewater and minimize its impact on the natural environment. The following is an ultra-filtration membrane method for papermaking sewage treatment technology introduced by the Chinese paper industry network.
Ultrafiltration membrane can purify paper waste water. The main principle of ultrafiltration membrane method is: First, put enough pressure on the side of the filtration membrane. The paper waste water is purified by separating the polymer organic matter and the small fiber material, suspension and microorganism.
The power pump may be damaged during the purification of papermaking wastewater. To prevent this from happening, it is necessary to add self-cleaning filters or laminate filters to the wastewater treatment process because the wastewater treatment needs to go through many links. Including the most basic links such as air flotation, aerobic, anaerobic, and precipitation, so in order to better meet the standards and requirements, self-cleaning filters and laminated filters are necessary.
Ultrafiltration membrane technology has been widely used in the treatment of papermaking wastewater due to its many advantages. The process can effectively remove and separate pulp fiber and lignin from wastewater and recycle lignin from wastewater. The impurities in the wastewater are reduced to the lowest level, and the organic compounds and important components in the wastewater are recycled. In general, the use of ultrafiltration membrane technology to purify impurities in wastewater, low energy consumption, in line with the concept of sustainable development.
Chinese paper network small editor pointed out that plate ultrafiltration membrane technology is a very advanced wastewater treatment method. Fibre materials are not easily blocked and the recovery time is relatively fast. However, the problem is that the market price of flat film is very high. At present, the hollow ultrafiltration membrane developed in China has achieved remarkable results. It is believed that the ultrafiltration membrane technology will be better developed and improved in the future development process, and the wastewater treatment effect will be significantly improved.