發(fā)布時(shí)間：2018-06-27 20:49

  本文選題：炭膜 + 焦化廢水　； 參考：《安徽工業(yè)大學(xué)》2017年碩士論文

【摘要】：膜分離技術(shù)是一項(xiàng)應(yīng)用前景廣泛的技術(shù),而炭膜是以煤或高分子聚合物為原料制備的含有極其豐富微孔隙結(jié)構(gòu)一種新型多孔無(wú)機(jī)膜。因其成本低廉、耐高溫、耐腐蝕及機(jī)械強(qiáng)度較高等優(yōu)點(diǎn),在純水制備、廢水處理等領(lǐng)域具有較高的開(kāi)發(fā)價(jià)值。論文以煤為原料,懫用半干法壓制成型,經(jīng)干燥、炭化制備出炭膜�？疾炝瞬煌悍N配比對(duì)炭膜性能的影響,利用氣體泡壓法等對(duì)炭膜的結(jié)構(gòu)和性能進(jìn)行表征,并且采用以丙烯酰胺為單體進(jìn)行溶液聚合來(lái)對(duì)炭膜表面進(jìn)行接枝親水基團(tuán)的改性研究,探討了不同條件下制備的炭膜對(duì)高濃度焦化廢水分離試驗(yàn),試驗(yàn)結(jié)果表明:當(dāng)焦煤占混煤的比例為40%,成型壓力為20MPa,炭化終溫為950℃時(shí)制備的炭膜結(jié)構(gòu)性能相對(duì)較好;并將其用于處理高濃度焦化廢水,廢水中的COD去除率達(dá)到50%。在此基礎(chǔ)之上的改性研究發(fā)現(xiàn),當(dāng)丙烯酰胺單體用量占油水質(zhì)量比為5%、反應(yīng)溫度50℃、反應(yīng)時(shí)間為4h時(shí),炭膜的性能進(jìn)一步提高,其處理焦化廢水時(shí),廢水中的COD去除率可達(dá)69%。因此通過(guò)改變不同煤種的配比可以調(diào)控炭膜的孔結(jié)構(gòu)尺寸及孔徑分布,通過(guò)引入親水基團(tuán)能夠進(jìn)一步提升炭膜處理焦化廢水的能力,可以減少高濃度焦化廢水進(jìn)入生化處理站所需補(bǔ)充的新水,達(dá)到節(jié)能減排的目的。
[Abstract]:Membrane separation technology is a promising technology, and carbon membrane is a new kind of porous inorganic membrane, which is made from coal or polymer. Because of its advantages of low cost, high temperature resistance, corrosion resistance and high mechanical strength, it has high development value in the fields of pure water preparation, wastewater treatment and so on. In this paper, coal was used as raw material and carbon film was prepared by semi-dry compaction and carbonization. The effects of different coal ratios on the properties of carbon membranes were investigated. The structure and properties of carbon membranes were characterized by gas bubble pressure method. The modification of hydrophilic groups on the surface of carbon membrane by solution polymerization with acrylamide as monomer was studied. The separation of high concentration coking wastewater by carbon membrane prepared under different conditions was discussed. The results show that when the ratio of coking coal to mixed coal is 40, the molding pressure is 20 MPA, the final temperature of carbonization is 950 鈩，

本文編號(hào)：2075242