Application of PET Release Film in Various Industrial
Any process involving molecular level concentration and separation has the opportunity to apply film technology. The online purification of automotive electrophoretic paint uses ultrafiltration membrane to remove impurities and continuously ensure paint quality; Separation and concentration of intermediates using ultrafiltration membrane technology in the fuel industry.
1. Application of PET isolation film in environmental protection and water resource utilization
Film technology has been widely applied in wastewater treatment, pollution prevention and comprehensive utilization of water resources. In many cases, release film wholesale not only treats wastewater, but also recycles useful substances and energy.
2. Treatment of various oily wastewater and waste oil in PET release film
① Treatment of oil recovery reinjection water: Film can remove emulsified dissolved oil in water and improve the quality of injected water.
② Treatment of oily wastewater: Many industrial production and transportation industries produce a large amount of oily wastewater, and membrane filtration technology is an effective method for meeting the discharge standards.
③ Purification of waste lubricating oil: By using conventional techniques for membrane separation, a very pure lubricating oil can be obtained, which is suitable for the treatment of waste engine oil such as automobiles.
④ Purification and recovery of machine tool cutting oil: The membrane method can remove bacteria and impurities from waste cutting oil, and reuse it after treatment.
⑤ Purification technology of waste edible oil: edible oil produces Carcinogen under continuous high temperature, which can be removed by membrane method.
⑥ Purification of edible Rapeseed oil: Rapeseed oil contains 15%~48% Sinapinic acid with high carbon content. It can be removed by membrane method, reaching the standard (Sinapinic acid< 5%).
3. Wastewater treatment and reuse
① The film bioreactor for treating domestic sewage and reusing reclaimed water has a small floor area, low equipment investment, and good treatment water quality.
② The treatment and reuse of printing and development wastewater can be achieved through membrane technology, which can meet the discharge standards and can also be recycled.
③ Electroplating wastewater can be treated using membrane technology, water reuse, and pollutant reuse in tanks.
④ Printing and dyeing wastewater can be separated by membrane to remove colored dyes and the resulting water can be reused. Indigo fuel can be recovered from Denim printing and dyeing wastewater.
⑤ The film used in papermaking wastewater can separate lignin, pigments, etc. from the wastewater, and the purified water can be discharged or reused.