本文選題：三維電極 + 環(huán)氧樹脂��； 參考：《西南科技大學(xué)》2017年碩士論文

【摘要】：隨著我國(guó)工業(yè)化的發(fā)展,印染廢水的排放量日益增加并且逐漸成為工業(yè)廢水排放的大戶。印染廢水處理問題逐漸成為擺在工業(yè)化進(jìn)程面前的一道難題。本文以環(huán)氧樹脂覆膜活性炭作為粒子填料對(duì)印染廢水進(jìn)行處理,得到了較好的處理結(jié)果。為充分利用三維電極系統(tǒng)的電流,本文先以不銹鋼為電極系統(tǒng)的陰陽兩極,考察了多種條件下自制三維電極系統(tǒng)的電流分布特性。實(shí)驗(yàn)結(jié)果表明,在電解效力相當(dāng)?shù)那闆r下,1)選擇粒子填充量較小的系統(tǒng)、2)板間距較大的系統(tǒng)、3)電解質(zhì)濃度較低的系統(tǒng)、4)廢水p H值更接近于中性的系統(tǒng),可以有效地降低系統(tǒng)的旁路電流及短路電流的產(chǎn)生,提高系統(tǒng)的電流利用效率。通過環(huán)氧樹脂覆膜活性炭,得到覆膜均勻的絕緣覆膜粒子。在多種因素條件下對(duì)相同質(zhì)量的玻璃珠填料與覆膜活性炭填料三維電極系統(tǒng)進(jìn)行電解對(duì)比實(shí)驗(yàn),發(fā)現(xiàn)覆膜填料優(yōu)于玻璃珠填料。以覆膜粒子為填料,通過模擬廢水實(shí)驗(yàn)對(duì)系統(tǒng)進(jìn)行調(diào)試。在單因素實(shí)驗(yàn)中,覆膜活性炭-活性炭投加比1:3、板間距6 cm、電解電壓20 V,電解質(zhì)Na2SO4的量為2 g/L的條件下,在經(jīng)過30 min電解之后該系統(tǒng)的去除效率可以達(dá)到94.48%。正交試驗(yàn)表明,在電解電壓為25 V,板間距為6 cm,電解質(zhì)Na2SO4的量為2 g/L,活性炭投加比1:4的條件下為最佳電解組合。經(jīng)過30 min電解之后,亞甲基藍(lán)的濃度得到有效降低,COD的去除率達(dá)到55.5%。利用該三維電極系統(tǒng),對(duì)印染廢水進(jìn)行處理,結(jié)果表明在電解70 min之后,高濃度廢水中的COD去除率達(dá)到51.6%,可生化性獲得較大提高。低濃度廢水中的COD去除率達(dá)到78.5%。
[Abstract]:With the development of industrialization in China, the discharge of printing and dyeing wastewater is increasing day by day. The treatment of printing and dyeing wastewater has gradually become a difficult problem in the process of industrialization. In this paper, epoxy resin coated activated carbon was used as particle filler to treat printing and dyeing wastewater, and better results were obtained. In order to make full use of the current of the three dimensional electrode system, the characteristics of the current distribution of the three dimensional electrode system under various conditions were investigated with stainless steel as the anode and cathode of the system. The experimental results show that under the condition of equal electrolytic efficiency, the pH value of waste water is closer to that of neutral system. It can effectively reduce the generation of bypass current and short circuit current, and improve the current utilization efficiency of the system. The uniform insulating coated particles were obtained by epoxy resin coated activated carbon. The electrolytic contrast experiments were carried out on the three dimensional electrode system with the same quality glass beads and coated activated carbon fillers under various factors. It was found that the coated film fillers were superior to the glass beads fillers. The system was debugged by simulated wastewater experiment with coated particles as filler. In the single factor experiment, under the conditions of adding ratio of 1: 3, plate spacing of 6 cm, electrolytic voltage of 20 V and electrolyte Na2SO4 of 2 g / L, the removal efficiency of the system can reach 94.48 after 30 min electrolysis. The orthogonal test shows that the best electrolysis combination is under the conditions of 25 V electrolysis voltage, 6 cm plate spacing, 2 g / L electrolyte Na2SO4 and 1:4 ratio of activated carbon. After 30 min electrolysis, the concentration of methylene blue can be effectively reduced by 55.5%. After electrolysis for 70 min, the removal rate of COD in high concentration wastewater reached 51.6, and the biodegradability was greatly improved. The removal rate of COD in low concentration wastewater was 78.5%.
【學(xué)位授予單位】：西南科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：X791

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本文編號(hào)：1823596