碳素纖維污水凈化技術技術解析
北京市水處理環保材料工程(cheng)技(ji)(ji)術研究中(zhong)心聯合國家碳(tan)(tan)纖(xian)維(wei)工程(cheng)中(zhong)心對生物碳(tan)(tan)纖(xian)維(wei)進行處理，形成了以生態碳(tan)(tan)纖(xian)維(wei)和生物相容性纖(xian)維(wei)填料為(wei)核心的污水處理技(ji)(ji)術。
生(sheng)(sheng)態碳纖(xian)維(wei)(wei)材料(liao)由腈綸、丙綸和表面(mian)修飾后的(de)(de)(de)活(huo)性碳纖(xian)維(wei)(wei)復合(he)而成。它具有豐富的(de)(de)(de)微孔(kong)結構，孔(kong)徑(jing)分布范圍廣；比表面(mian)積很大，一般都在1000m2/g以上，具有較(jiao)大的(de)(de)(de)吸(xi)(xi)附(fu)(fu)容(rong)量(liang)；其(qi)微孔(kong)直接分布于纖(xian)維(wei)(wei)的(de)(de)(de)表面(mian)，因而吸(xi)(xi)附(fu)(fu)質擴散的(de)(de)(de)路徑(jing)短(duan)、時間(jian)短(duan)，其(qi)吸(xi)(xi)附(fu)(fu)和再(zai)生(sheng)(sheng)的(de)(de)(de)速(su)率(lv)快(kuai)(kuai)，可在較(jiao)溫(wen)和條件下再(zai)生(sheng)(sheng)。針對其(qi)吸(xi)(xi)附(fu)(fu)容(rong)量(liang)大、吸(xi)(xi)附(fu)(fu)速(su)率(lv)快(kuai)(kuai)、脫(tuo)附(fu)(fu)速(su)度快(kuai)(kuai)、灰分少、處(chu)理量(liang)大且使用時間(jian)長等優點。
生(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)相容(rong)性(xing)(xing)碳(tan)纖(xian)(xian)維(wei)是(shi)具有良好生(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)相容(rong)性(xing)(xing)的(de)(de)纖(xian)(xian)維(wei)狀的(de)(de)碳(tan)材料。碳(tan)纖(xian)(xian)維(wei)表(biao)面(mian)能(neng)低，與水的(de)(de)潤濕性(xing)(xing)差，表(biao)面(mian)呈現(xian)出(chu)疏水性(xing)(xing)，經表(biao)面(mian)修(xiu)飾(shi)處理后得(de)到(dao)的(de)(de)生(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)相容(rong)性(xing)(xing)碳(tan)纖(xian)(xian)維(wei)表(biao)面(mian)含(han)氧官(guan)能(neng)團增(zeng)加，表(biao)面(mian)能(neng)增(zeng)加，與水的(de)(de)潤濕性(xing)(xing)得(de)到(dao)改善，接(jie)觸角(jiao)變小，表(biao)面(mian)呈現(xian)出(chu)親水性(xing)(xing)。在污水處理過(guo)程中(zhong)對污染物(wu)(wu)(wu)(wu)(wu)的(de)(de)吸(xi)附(fu)以及(ji)生(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)膜的(de)(de)負載都與生(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)碳(tan)纖(xian)(xian)維(wei)表(biao)面(mian)官(guan)能(neng)團的(de)(de)結構與組(zu)成密(mi)切相關，通(tong)過(guo)調整表(biao)面(mian)修(xiu)飾(shi)方法和(he)工(gong)藝參數(shu)，制備出(chu)潤濕性(xing)(xing)好和(he)微(wei)生(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)相容(rong)性(xing)(xing)高的(de)(de)生(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)碳(tan)纖(xian)(xian)維(wei)。同時中(zhong)心模(mo)擬天然(ran)水草形(xing)態將(jiang)其(qi)(qi)加工(gong)并(bing)編織成環狀生(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)草，使(shi)其(qi)(qi)具有極高的(de)(de)吸(xi)附(fu)性(xing)(xing)和(he)生(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)親和(he)性(xing)(xing)，經太陽光(guang)照射后，吸(xi)引(yin)微(wei)生(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)菌群并(bing)在其(qi)(qi)表(biao)面(mian)形(xing)成粘著性(xing)(xing)活性(xing)(xing)生(sheng)(sheng)物(wu)(wu)(wu)(wu)(wu)膜。
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