本文選題：海綿鐵/碳微電解技術 + 海綿鐵/碳耦合H_2O_2技術　； 參考：《蘭州交通大學》2017年碩士論文

【摘要】：本課題來源于國家“十二五”水專項相關課題中關于強化去除腈綸廢水中有機污染物的要求,并結合吉林化纖集團奇峰股份有限公司腈綸廢水的實際處理情況,在試驗基地進行海綿鐵物化處理腈綸廢水的小試研究。主要針對該廠腈綸廢水中COD難生物降解的現(xiàn)狀,結合海綿鐵/碳微電解、海綿鐵/碳微電解耦合H_2O_2、海綿鐵類Fenton及催化金屬對以上技術的強化處理,考察以上物化技術對腈綸廢水的去除效果及對生化處理的效果影響。試驗以COD作為考察指標,得出以下結論:1、海綿鐵/碳微電解技術處理腈綸廢水(1)在單因素實驗基礎上,通過響應面分析對海綿鐵/碳微電解技術預處理腈綸廢水的工藝條件進行了優(yōu)化,得到最佳因素組合為:進水p H為2,鐵碳質(zhì)量比為0.5,海綿鐵投加量為35g/L,反應時間為75min。在此條件下,COD去除率可達29.59%;(2)海綿鐵/碳微電解預處理腈綸廢水可提高生化去除效果,在進水COD均值為925.5mg/L條件下,微電解可將其降至648.2mg/L,去除率為29.96%,最終生化出水COD為231.8mg/L,生化去除率為64.24%,累積去除率74.95%,較生化去除率提高12.5%,累積去除率提高23.2%;(3)微電解可將COD均值為314.2mg/L的廢水處理廠接觸氧化池出水降至198mg/L,而后廢水進入生化系統(tǒng),無去除效果,已達生化去除極限;(4)在響應面優(yōu)化條件基礎上,將鐵碳質(zhì)量比由0.5調(diào)整至1后(海綿鐵投加量35g/L、進水p H為2、反應時間75min),相比調(diào)整之前,微電解去除率由29.96%下降至23.56%,SBBR生化去除率由64.23%下降至59.32%,總?cè)コ视?4.95%下降至68.91%;(6)在響應面優(yōu)化條件基礎上,將進水p H由2調(diào)整至3、5和原水p H后(海綿鐵投加量35g/L,鐵碳質(zhì)量比0.5、反應時間75min),在進水COD均值為752mg/L條件下,進水p H為3時,海綿鐵/碳微電解可將COD降至574.9mg/L,再經(jīng)生化處理,其最終出水COD均值為258.6mg/L;進水p H為5時,微電解可將COD降至596.2mg/L,再經(jīng)生化處理,其最終出水COD均值為275.4mg/L;進水p H為原始p H時,海綿鐵/碳微電解可將COD降至618.6mg/L,再經(jīng)生化處理,其最終出水COD均值為288.7mg/L;對照組即不經(jīng)海綿鐵/碳預處理的腈綸廢水,其最終生化出水COD均值為358.8mg/L。2、海綿鐵/碳微電解耦合H_2O_2技術預處理腈綸廢水(1)在響應面優(yōu)化海綿鐵/碳微電解條件(海綿鐵投加量35g/L、鐵碳質(zhì)量比0.5、進水p H為2、反應時間75min)下,H_2O_2耦合方式為從初始時刻開始,連續(xù)流方式投加,投加量最高為3ml/L。H_2O_2投加量分別為1ml/L、2ml/L及3ml/L時,在進水COD為825.9mg/L時,其出水COD分別為414.4mg/L、345.3mg/L和261.6mg/L,去除率分別為49.8%、58.2%和68.3%;(2)在進水COD均值為730.4mg/L條件下,在H_2O_2投加量分別為1ml/L、2ml/L及3ml/L時,預處理可以分別將其COD降至385.3mg/L、306.4mg/L和243.2mg/L,進入SBBR進行生化處理,其最終COD出水均值分別為159.2mg/L、126.4mg/L和88.8mg/L。3、海綿鐵耦合H_2O_2技術預處理腈綸廢水(1)在進水p H為2,攪拌速度為50r/min,H_2O_2投加量1ml/L、2ml/L及3ml/L時,相對應的海綿鐵投加量依次為15g/L、25g/L及35g/L,相對應的反應時間依次為90min,120min及150min,H_2O_2在初始時刻連續(xù)流投入的條件下,去除率依次為36.1%,45.5%,58.1%;(2)在H_2O_2投加量分別為1ml/L、2ml/L及3ml/L條件下,海綿鐵耦合H_2O_2體系中隨著活性炭的加入,去除率在逐步升高,并在鐵碳質(zhì)量比為0.5時,去除率趨于穩(wěn)定,分別為45%、54.4%和68.5%,去除率較未投加活性炭時提高了9.5%、9.5%和8.7%;(3)在進水COD均值為921.1mg/L條件下,在H_2O_2投加量分別為1ml/L、2ml/L及3ml/L時,海綿鐵耦合H_2O_2技術預處理可以分別將其COD降至590.9mg/L、505.1mg/L和395.3mg/L,進入SBBR進行生化處理,其最終COD出水均值分別為234.6mg/L、179.7mg/L和148.7mg/L。4、催化金屬在海綿鐵物化作用腈綸廢水體系中的強化作用效果考察(1)在海綿鐵投加量35g/L、鐵碳質(zhì)量比0.5、反應時間75min條件下,Mn O_2和Al_2O_3投加量均在1g/L時,在不同的進水p H條件下,均對海綿鐵/碳微電解體系預處理腈綸廢水起到了強化作用,在進水p H為2時,去除率由29.68%分別升至36.69%和39.58%。(2)在海綿鐵投加量10g/L、H_2O_2投加量1.5ml/L、H_2O_2在初始時刻一次性全部投入、反應時間105min條件下,Al_2O_3投加量在2g/L時,在進水p H為2條件下,去除率可由29.54%升至42.97%,并能拓寬對進水p H的適應范圍;而同樣在該條件下,Si O投加量為2g/L時,在進水p H為2時,去除率可由29.48%升至42.09%。(3)在海綿鐵投加量15g/L、反應時間90min條件下,Mn O_2和Al_2O_3投加量均在2g/L時,在不同的進水p H條件下,均對海綿鐵預處理腈綸廢水起到了強化作用,在進水p H為2時,去除率由21%和21.6%分別升至25%和31.44%,Al_2O_3對單獨海綿鐵體系起到強化作用的同時,也能拓寬海綿鐵預處理腈綸廢水對進水p H的適應范圍,在原水p H條件下,去除率可由3.6%升至17.17%。
[Abstract]:This project comes from the national "12th Five-Year" water special related subject to strengthen the removal of organic pollutants in the acrylic fiber wastewater, and combined with the actual treatment of Jilin chemical fiber group Qifeng Limited by Share Ltd acrylic fiber wastewater treatment. The present situation of biodegradation of COD in waste water is combined with sponge iron / carbon micro electrolysis, sponge iron / carbon micro electrolysis coupling H_2O_2, sponge iron Fenton and catalytic metal to strengthen the above technology. The effects of the above physicochemical technology on the removal of acrylic fiber wastewater and the effect on the effect of biochemical treatment are investigated. The experiment takes COD as an inspection index to get the following. Conclusions: 1, on the basis of single factor experiment, sponge iron / carbon micro electrolysis technology (1) is used to optimize the process conditions of the pretreatment of acrylic fiber wastewater by the response surface analysis. The optimum factors are as follows: the influent P H is 2, the mass ratio of iron and carbon is 0.5, the dosage of the sponge iron is 35g/L, and the reaction time is 75m In. under this condition, the removal rate of COD can reach 29.59%. (2) the pretreatment of acrylic fiber wastewater by sponge iron / carbon micro electrolysis can improve the biological removal efficiency. Under the condition of COD mean of 925.5mg/L, micro electrolysis can reduce it to 648.2mg/L, the removal rate is 29.96%, the final biochemical effluent COD is 231.8mg/L, the biochemical removal rate is 64.24%, the cumulative removal rate is 74.95%, and the ratio is 74.95%. The removal rate increased by 12.5% and the cumulative removal rate increased by 23.2%; (3) micro electrolysis could reduce the effluent from the wastewater treatment plant of the wastewater treatment plant with COD mean 314.2mg/L to 198mg/L, and then the wastewater entered the biochemical system, which had no removal effect and reached the biochemical removal limit. (4) the mass ratio of iron and carbon was adjusted from 0.5 to 1 (sponge iron) on the basis of the response surface optimization conditions. Adding amount of 35g/L, influent P H 2 and reaction time 75min), the removal rate of micro electrolysis decreased from 29.96% to 23.56% before the adjustment, the biochemical removal rate of SBBR decreased from 64.23% to 59.32%, and the total removal rate decreased from 74.95% to 68.91%. (6) the influent P H was adjusted from 2 to 3,5 and P H of raw water (35g/L, iron dosage of iron sponge). The carbon mass ratio is 0.5 and the reaction time is 75min). When the influent COD mean value is 752mg/L and the influent P H is 3, the sponge iron / carbon micro electrolysis can reduce COD to 574.9mg/L, and then the final effluent COD mean value is 258.6mg/L and the influent P H is 5. When the influent P H is the original P H, the sponge iron / carbon micro electrolysis can reduce COD to 618.6mg/L, and then the final effluent COD mean value is 288.7mg/L by biochemical treatment; the control group is the acrylic wastewater without the sponge iron / carbon pretreatment, its final biochemical effluent is 358.8mg/L.2, the sponge iron / carbon micro electrolysis coupling H_2O_2 technology pretreatment acrylic wastewater (1) is in the control group. In response surface optimization of sponge iron / carbon micro electrolysis conditions (spongy iron dosage 35g/L, iron carbon mass ratio 0.5, influent P H 2, reaction time 75min), H_2O_2 coupling mode is from initial time, continuous flow mode is added, the maximum dosage of 3ml/L.H_2O_2 adding is 1ml /L, 2ml/L and 3ml/L, when the influent COD is 825.9mg/L, its effluent The removal rates of 414.4mg/L, 345.3mg/L and 261.6mg/L were 49.8%, 58.2% and 68.3%, respectively. (2) when the influent COD mean was 730.4mg/L, the H_2O_2 dosage was 1ml/L, 2ml/L and 3ml/L respectively. The pretreatment could reduce the COD to 385.3mg/L, 306.4mg/L and the biochemical treatment. For 159.2mg/L, 126.4mg/L and 88.8mg/L.3, the spongy iron coupling H_2O_2 technology pretreated the acrylic fiber wastewater (1) in the influent P H, with the mixing speed of 50r/min, H_2O_2 dosage 1ml/L, 2ml/L and 3ml/L. Under the conditions of continuous flow, the removal rate is 36.1%, 45.5%, 58.1%. (2) under the condition of 1ml/L, 2ml/L and 3ml/L, the removal rate of the cavernous iron coupling H_2O_2 system increases gradually with the addition of activated carbon, and the removal rate tends to be stable when the mass ratio of iron and carbon is 0.5, which is 45%, 54.4% and 68.5%, respectively, and the removal rate is higher, respectively. When the activated carbon was not added, 9.5%, 9.5% and 8.7% were increased. (3) when the COD mean of the influent was 921.1mg/L, and when the dosage of H_2O_2 was 1ml/L, 2ml/L and 3ml/L respectively, the sponge iron coupled H_2O_2 technology could reduce its COD to 590.9mg/L, 505.1mg/L and 395.3mg/L, and entered SBBR for biochemical treatment, and the mean value of the final effluent was 23, respectively. The effect of 4.6mg/L, 179.7mg/L and 148.7mg/L.4 on the strengthening of metal in the process of spongy iron in the acrylic fiber wastewater system (1) when the dosage of the sponge iron is 35g/L, the mass ratio of iron and carbon is 0.5, the dosage of Mn O_2 and Al_2O_3 is at 1g/L under the reaction time 75min, the sponge iron / carbon micro electrolysis system is pretreated under the different influent P H. The treatment of acrylic fiber wastewater has been strengthened. When the influent P H is 2, the removal rate is increased from 29.68% to 36.69% and 39.58%. (2) in the sponge iron dosage 10g/L, H_2O_2 dosage 1.5ml/L, H_2O_2 in the initial time all input, the reaction time 105min conditions, Al_2O_3 dosage in 2g/L, under the P H is 2 conditions, the removal rate can be 2. 9.54% to 42.97%, and can broaden the range of adaptation to the influent P H, and under the same condition, when the dosage of Si O is 2g/L, when the influent P H is 2, the removal rate can be increased from 29.48% to 42.09%. (3) in the sponge iron dosage 15g/L. Under the condition of reaction time 90min, Mn O_2 and dosage are all under the conditions of different influent conditions. The pretreated acrylic fiber wastewater has been strengthened. When the influent P H is 2, the removal rate is increased from 21% and 21.6% to 25% and 31.44% respectively. Al_2O_3 can strengthen the individual sponge iron system and also broaden the adaptation range of the sponge iron pretreated acrylic wastewater to the influent P H. Under the P H condition, the removal rate can be increased from 3.6% to 17.17%..
【學位授予單位】：蘭州交通大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：X783.4

【參考文獻】

相關期刊論文 前10條

1 王亞娥;白帆;趙煒;李杰;;我國腈綸廢水物化處理技術研究進展[J];水處理技術;2017年03期

2 殷旭東;李德豪;毛玉鳳;朱越平;劉正輝;;鐵碳微電解/H_2O_2耦合類Fenton法預處理高濃度焦化廢水[J];環(huán)境工程學報;2016年01期

3 譚彪;李杰;朱澤敏;白廷洲;;我國腈綸廢水物化預處理方法的研究進展[J];化工環(huán)保;2015年06期

4 呂雷;朱米家;魏彥林;朱世東;;鐵碳微電解響應面優(yōu)化預處理染料廢水[J];環(huán)境工程學報;2015年06期

5 程愛華;畢重家;劉穎;暢飛;劉哲;趙丹;;磁芬頓處理DMAC廢水的實驗研究[J];內(nèi)蒙古大學學報(自然科學版);2015年03期

6 程婷;李海松;王敏;買文寧;姚萌;;鐵碳微電解/H_2O_2耦合類Fenton法深度處理制藥廢水[J];環(huán)境工程學報;2015年04期

7 陳志平;楊健雄;張?zhí)鹛?林培真;羅建標;;活性砂濾池在污水處理廠深度處理中的應用[J];中國給水排水;2014年20期

8 程琳;李杰;徐敏;;腈綸廢水生化處理脫氮影響因素研究[J];廣州化工;2014年16期

9 馬寧;王亞娥;李杰;張艷梅;;新型水處理材料海綿鐵在廢水處理中的應用研究[J];環(huán)境科學與管理;2014年08期

10 劉作林;;國內(nèi)腈綸廢水預處理技術的研究進展[J];煉油與化工;2014年03期

相關碩士學位論文 前2條

1 張冰;鐵炭—富載體對腈綸廢水生化處理的強化研究[D];蘭州交通大學;2014年

2 何緒蕾;流砂過濾器應用研究[D];中國石油大學;2008年

，

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