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印染廢水處理論文外文翻譯-其他專業(yè)-資料下載頁

2025-01-19 08:07本頁面

【導讀】方法的研究進展與動向。并指出不同印染廢水處理方法的組合是印染廢水處理的。據不完全統(tǒng)計,我國日排放印染廢水量為3000-4000kt,是各行業(yè)中。的排污大戶之一。加強印染廢水的處理可以緩解我國水資源嚴重匱乏的問題,對。保護環(huán)境、維持生態(tài)平衡起著極其重要的作用。1印染廢水處理面臨的問題。了對印染污水的治理。根據《紡織染整工業(yè)水污染物排放標準》,除Ⅲ類污水。浮物、氨氮、苯胺類、二氧化氯等指標的排放限定。而印染廢水水質一般平均為。排放的印花廢水和皂洗廢水;整理階段排放的整理廢水。傳統(tǒng)的生物與物化聯合處理系統(tǒng),出水即可達到排放標準。傳統(tǒng)的印染廢水處理方法,如吸附、懸浮、過濾、混。前印染廢水發(fā)展的要求。對印染廢水的脫色作用較活性污泥法高。解的印染廢水具有除污染效率高、運行穩(wěn)定和較強的耐沖擊負荷能力等特點。用于印染廢水處理,產生了生物強化技術。

  

【正文】 ars dedicated to nurturing highdegradation activity of bacteria or improved treatment of dyeing wastewater, resulting in a bioaugmentation. The mechanism for the wastewater treatment system to increase the dominant species in nature or produced through geic technology and efficient bination of bacteria, increased biomass, enhanced biomass response to removal of a particular hazardous substance or class of purpose. At present, the biological technology is the most mon application form directly to the target dosage degradation of pollutants with the effects of microanisms. The application and practice of hightech Photochemical Oxidation Photochemical oxidation due to its mild reaction conditions (ambient temperature and pressure), oxidation capability and speed advantages. Photochemical oxidation of deposition can be divided into light, photosensitization oxidation, light excitation of four oxidation and photocatalytic oxidation. More current research and application of photocatalytic oxidation is. Photocatalytic oxidation can effectively destroys many structural stability Di difficulty to the degradation of anic pollutants, Juyou energy efficiency, pollution and other degradation Chedi advantages, almost all of the anic matter in the next Ke Yi Guang plete oxidation catalyst for the CO2, H2O and other inanic Jian Dan material. However, the photocatalytic oxidation effect of high concentrations of waste water is not ideal. On the photocatalytic degradation of dyes in the light focused on the study of catalysts. Which, TiO2 chemical stability, insoluble nontoxic, low cost, is an ideal photocatalyst. Conventional powdertype TiO2 photocatalyst separation because of the difficulties and shortings such as not suitable for mobile systems, it is difficult to apply in practice. In recent years, TiO2 photocatalyst mixed technology, modification of a hot topic. Membrane Separation Technology Membrane separation technology of dyeing wastewater by the pollutants in wastewater the separation, concentration and recovery of waste water treatment to achieve the purpose. With no secondary pollution, low energy consumption, can be recycled, wastewater reuse, etc directly. Although membrane separation technology has so many advantages, but there are also unresolved problems, such as membrane fouling, membrane flux, membrane cleaning, and acid resistant membrane material, corrosion resistance and other problems, so at this stage the use of a single membrane separation technology of dyeing wastewater, recycling pure dyes, there are still technical and economic and other issues. Now membrane ultrafiltration membrane treatment technologies, nanofiltration membrane and reverse osmosis membrane. Membrane Treatment of dyeing wastewater salts and COD removal are very good role. 3 Conclusion With increasingly stringent emission standards, national scholars in the printing and dyeing wastewater treatment technologies indepth exploration. We believe that with the continuous progress of science and technology, printing and dyeing wastewater treatment process will be gradual improvement, investment, low cost, simple processing technology Wastewater treatment will bring new hope. 1
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