發(fā)布時(shí)間：2018-08-30 17:01

【摘要】：印染廢水來源于印染工業(yè)中染色、整理、印花等各個(gè)環(huán)節(jié),其成分復(fù)雜性高,濃度較大,色度高且含有多種毒性有機(jī)物而成為最難處理的工業(yè)廢水之一。本文使用鐵炭微電解法對印染廢水的處理進(jìn)行了研究,對傳統(tǒng)鐵炭微電解材料進(jìn)行了改性處理。用活性炭粉、還原鐵粉及多種金屬氧化物為添加劑為主要原料,通過改變各種原料比例,調(diào)整燒結(jié)時(shí)間和溫度,制備出一種性狀穩(wěn)定且能效較高的新型鐵炭微電解材料。另外,為增強(qiáng)新型微電解材料對印染廢水的處理效果,本實(shí)驗(yàn)利用微電解材料聯(lián)合電化學(xué)反應(yīng),通過實(shí)驗(yàn)篩選出最優(yōu)工藝條件使新型鐵炭微電解材料處理印染廢水的效果得到更大的提高。主要研究內(nèi)容和結(jié)果如下:1.對新型鐵炭微電解法處理印染廢水的原理進(jìn)行了探討,說明新型鐵炭微電解法處理印染廢水的機(jī)理是包含著電化學(xué)反應(yīng)、絮凝作用、物理吸附、氧化還原反應(yīng)、金屬氧化物的催化作用、電沉積等多種反應(yīng)于一體的復(fù)雜過程產(chǎn)生的綜合效應(yīng)并據(jù)此確定了新型鐵炭微電解材料的原料組成。2.本實(shí)驗(yàn)用活性炭粉末、還原性鐵粉和多種金屬氧化物添加劑,通過多次試驗(yàn)確定最佳反應(yīng)條件,制備出一種高效穩(wěn)定的新型鐵炭微電解材料,結(jié)果證明按Fe:C為1:1,添加劑按氧化銅:亞氧化鈦:氧化鎳:氧化錳:氧化鈣:高嶺土為3:5:2:1:1:15,致孔劑含量3.5%,以光學(xué)純水分作為黏合劑,在1000℃下燒結(jié)2小時(shí)制備的新型鐵炭微電解材料性能最佳。3.實(shí)驗(yàn)采用單因素分析和正交實(shí)驗(yàn)的方式對新型鐵炭微電解材料處理印染廢水得出的實(shí)驗(yàn)結(jié)果為:pH環(huán)境為4,投加量為0.2kg/L,反應(yīng)2小時(shí)左右,測得新型鐵炭微電解材料處理印染廢水的效果最佳。4.實(shí)驗(yàn)采用單因素分析和正交試驗(yàn)的方式對新型鐵炭微電解材料聯(lián)合電化學(xué)反應(yīng)處理印染廢水得出的實(shí)驗(yàn)結(jié)果為:采用鐵電極,電壓為5V,pH環(huán)境為4,投加量為0.2kg/L,反應(yīng)2小時(shí)左右,測得的處理效果最佳。
[Abstract]:Printing and dyeing wastewater comes from dyeing, finishing, printing and other links in the printing and dyeing industry. It is one of the most difficult industrial wastewater to treat because of its high complexity, high concentration, high chroma and many toxic organic compounds. In this paper, the treatment of printing and dyeing wastewater by iron-carbon microelectrolysis was studied, and the traditional iron-carbon micro-electrolysis material was modified. A new iron-carbon microelectrolysis material with stable properties and high energy efficiency was prepared by changing the ratio of various raw materials and adjusting the sintering time and temperature by using activated carbon powder, reduced iron powder and various metal oxides as main raw materials. In addition, in order to enhance the treatment effect of new micro-electrolysis material on printing and dyeing wastewater, this experiment uses the micro-electrolysis material to combine the electrochemical reaction. The optimum technological conditions were screened out through experiments to improve the effect of new iron-carbon micro-electrolysis material on dyeing and printing wastewater treatment. The main contents and results are as follows: 1. The principle of treatment of printing and dyeing wastewater by new iron-carbon micro-electrolysis was discussed. The mechanism of new iron-carbon micro-electrolysis for treating printing and dyeing wastewater was described, which included electrochemical reaction, flocculation, physical adsorption, redox reaction. Based on the complex process of metal oxide catalysis and electrodeposition, the raw material composition of new iron-carbon micro-electrolysis material was determined. In this experiment, a new kind of iron carbon microelectrolysis material with high efficiency and stability was prepared by using activated carbon powder, reductive iron powder and various metal oxide additives, and the optimum reaction conditions were determined through many experiments. The results show that the Fe:C is 1: 1, the additive is copper: titanium oxide: nickel oxide: manganese oxide: calcium oxide: kaolin is 3: 5: 2: 1: 1: 15, the content of pore-forming agent is 3.5%, and the optical pure water is used as adhesive. The new iron-carbon microelectrolysis material sintered at 1000 鈩，

本文編號(hào)：2213705