本文選題：高鐵酸鉀 + 氧化處理��； 參考：《首都經濟貿易大學》2017年碩士論文

【摘要】：丁基黃藥和乙硫氮是選礦廢水中殘留的兩種常用的選礦藥劑,生物毒性大。含丁基黃藥和乙硫氮等浮選藥劑的選礦廢水不經處理直接排放進入水體,會導致水質惡化,散發(fā)惡臭,破壞礦區(qū)生態(tài)環(huán)境,威脅礦區(qū)職工及周邊居民的身體健康。因此,去除選礦廢水中的殘留浮選藥劑顯得尤為重要。本論文研究了用高鐵酸鉀處理含丁基黃藥模擬廢水、乙硫氮模擬廢水和實際選礦廢水的凈化效果,研究了反應條件對兩種浮選藥劑去除率的影響,并對兩種藥劑的氧化產物進行了初步鑒定。研究結果表明:1、反應條件對高鐵酸鉀氧化丁基黃藥和乙硫氮去除率的影響。隨著高鐵酸鉀投加量的增大、pH值的降低、溫度升高和反應時間的延長,丁基黃藥去除率逐漸升高。在室溫、起始pH值為8、高鐵酸鉀起始濃度為0.6g/L、乙硫氮初始濃度0.2g/L、丁基黃藥初始濃度0.2g/L和反應1min的條件下,乙硫氮去除率達到56.75%,丁基黃藥去除率達到50.03%。高鐵酸鉀投加量為1g/L,反應45min時,乙硫氮去除率達92.59%,黃藥去除率達98.57%。2、正交試驗結果表明:在高鐵酸鉀對乙硫氮的氧化過程中,pH值影響最強,高鐵酸鉀濃度次之,時間最弱。在pH值為6,K2FeO4濃度為0.6g/L,反應時間為45min時,對乙硫氮去除效果最好。在高鐵酸鉀對丁基黃藥的氧化過程中,高鐵酸鉀濃度影響最強,pH值次之,時間最弱。在K2FeO4濃度為0.6g/L,反應時間為45min,pH值為6時,對黃藥去除效果最好。3、用紫外波長掃描在200~450nm范圍內分別對丁基黃藥乙硫氮降解情況進行掃描,結果表明,在60min的氧化時間內,黃藥、乙硫氮被降解為其他形式的有機物,很好的達到了去除選礦藥劑的目的。利用GC/MC分別對對丁基黃藥和乙硫氮氧化過程的副產物進行鑒定分析,證明乙硫氮氧化副產物為異硫氰酸乙酯。黃藥的氧化副產物為丁酸和丁醇。紅外光譜試驗結果顯示,乙硫氮原樣與降解后產物相比,反射光譜峰銳明顯減弱,其中的乙硫氮基被氧化為其他產物。將黃藥原樣與降解后產物的紅外光譜圖進行對比,黃原酸鹽琉基的紅外吸收峰明顯減弱。這說明法能有效地將硫元素轉化為相應的含氧酸根,降低了二次污染的程度,此法適用于氧化降解丁基黃藥和乙硫氮。4、用高鐵酸鉀處理實際硫化礦浮選廢水,廢水凈化效果良好。此法起到了很好的廢水凈化作用。當廢水高鐵酸鉀濃度越高,廢水中重金屬離子和浮選藥劑的去除效果越好,高鐵酸鉀的添加對廢水pH值起到了調節(jié)作用,處理后廢水中重金屬含量達到《城鎮(zhèn)污水處理廠污染物排放標準》GB18918-2002排放標準要求。
[Abstract]:Ding Ji xanthate and ethanazide are two commonly used mineral beneficiation agents in the mineral processing wastewater, with great biological toxicity. The mineral processing wastewater containing Ding Ji xanthate and eththulfide and other flotation reagents will be discharged directly into the water body without treatment. It will lead to the deterioration of the water quality, emanate the odor, destroy the ecological environment in the mining area, and threaten the health of the workers and the residents in the mining area. Therefore, it is very important to remove the residual flotation reagents in the mineral processing wastewater. In this paper, the effects of treating wastewater containing butyl xanthate, simulated wastewater of ethyl thulfide and actual beneficiation wastewater were studied with potassium ferrate. The effects of reaction conditions on the removal rate of two kinds of flotation reagents were studied, and the oxidation products of two kinds of agents were first introduced. The results showed that: 1, the effect of reaction conditions on the removal rate of oxidation butyl xanthate and eththulfide in potassium ferrate. With the increase of the dosage of potassium ferrate, the decrease of pH value, the increase of temperature and the time of reaction increase, the removal rate of butyl xanthate gradually increases. At room temperature, the initial pH value is 8, and the initial concentration of potassium ferrate is 0.6g/L, eththulfide nitrogen. Under the initial concentration of 0.2g/L, the initial concentration of butyl xanthate 0.2g/L and reaction 1min, the removal rate of ethyl thiazonazide reached 56.75% and the removal rate of butyl xanthate reached 50.03%. potassium ferrate dosage 1g/L. When the reaction 45min, the removal rate of ethyl thiazonazo was 92.59%, and the removal rate of xanthate reached 98.57%.2. The orthogonal test results showed that the oxygen of ethyl thiazide was in the orthogonal test. During the process, the pH value has the strongest influence, the potassium ferrate concentration is the second, the time is the weakest. When the pH value is 6, the K2FeO4 concentration is 0.6g/L, the reaction time is 45min, the removal effect is best. In the oxidation process of the butyl xanthate, the effect of potassium ferrate concentration is the strongest, the pH value is the lowest and the time is the weakest. When the K2FeO4 concentration is 0.6g/L, the reaction is the reaction time. When 45min and pH value are 6, the best removal effect of xanthate is.3. The degradation of ethyl thiazide in butyl xanthate is scanned by UV wavelength scanning in 200~450nm range. The result shows that in the oxidation time of 60min, xanthate and thiazoxide are degraded into other forms of organic matter, and the purpose of removing mineral preparation agents is good. GC The by-products of the oxidation of butyl xanthate and ethnoxyl nitrogen were identified and analyzed by /MC. It was proved that the byproduct of ethnoxyl nitrogen oxidation was ethyl isothiocyanate. The oxidation by-products of xanthate were butyric acid and butanol. The base was oxidized to other products. The infrared absorption peak of xanthate was obviously weakened by comparing the infrared spectrum of the original xanthate with the degraded product. This shows that the method can effectively convert the sulfur element into the corresponding oxyacid root and reduce the degree of two pollution. This method is suitable for the oxidation and degradation of butyl xanthate and ethiazone.4. Potassium ferric acid is used to treat the actual sulfide flotation wastewater with good purification effect. This method has played a very good role in the purification of wastewater. When the concentration of potassium ferrate is higher, the better the removal effect of heavy metal ions and flotation reagents in the wastewater, the addition of potassium ferrate to the pH value of waste water is regulated, and the content of heavy metals in the wastewater after treatment is reached. < < Standard for discharge of pollutants from municipal sewage treatment plants >GB18918-2002 emission standard.
【學位授予單位】：首都經濟貿易大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：X751

【參考文獻】

相關期刊論文 前10條

1 李洪枚;馮雨晗;;高鐵酸鉀降解含乙硫氮的模擬選礦廢水試驗[J];金屬礦山;2017年01期

2 趙亮;劉文剛;魏德洲;楊培月;張瑞陽;崔寶玉;;乙硫氮在水體中的降解特性[J];金屬礦山;2016年06期

3 張彬彬;王開春;李學字;劉志奎;田鳳蓉;楊志林;;混凝沉淀處理鉬礦選礦廢水的試驗研究[J];化工礦物與加工;2015年05期

4 翟平;唐少卿;錢瑜;;CuO/γ-Al_2O_3類Fenton試劑降解乙硫氮[J];廣東化工;2015年03期

5 苗宗成;王蕾;霍小平;張永明;王登武;李仲謹;;高鐵酸鉀對制革綜合廢水處理的研究[J];中國皮革;2011年23期

6 彭然;張漢泉;張亞平;張婷;;O_3/H_2O_2去除選礦廢水中丁基黃藥的研究[J];金屬礦山;2011年11期

7 王然;孫春寶;曾慧峰;米麗平;張銀平;;臭氧氧化法處理尾礦廢水中浮選藥劑的研究[J];水處理技術;2011年09期

8 武秀文;藍惠霞;;高鐵酸鉀氧化處理苯酚廢水的研究[J];環(huán)境工程學報;2011年05期

9 劉玉兵;李明玉;張煜;邵琴;;高鐵酸鉀去除微污染水源水中氰化物的試驗研究[J];化學通報;2011年02期

10 梁剛;;有色金屬礦山廢水的危害及治理技術[J];金屬礦山;2010年12期

相關碩士學位論文 前10條

1 田靜;化學氧化法處理鉛鋅硫化礦浮選廢水的研究[D];廣東工業(yè)大學;2014年

2 武純;苯胺黑藥最佳生物降解條件及重金屬耐受濃度研究[D];廣東工業(yè)大學;2014年

3 李韻捷;臭氧氧化降解二苯胺基二硫代磷酸的研究[D];廣東工業(yè)大學;2014年

4 袁珊珊;混凝沉淀法處理多金屬礦選礦廢水研究[D];中南大學;2013年

5 劉曉旭;高鐵酸鉀降解水中雌二醇的實驗研究[D];首都經濟貿易大學;2012年

6 董棟;鉛鋅選礦廢水處理與回用實驗研究[D];中南大學;2012年

7 黃俊文;銅鉛鋅硫化礦選礦廢水中捕收劑降解及機理研究[D];江西理工大學;2011年

8 張建;高鐵酸鉀處理印染廢水的試驗研究[D];沈陽建筑大學;2011年

9 張萌;O_3、O_3/H_2O_2和UV/O_3氧化技術降解浮選藥劑丁基黃藥的研究[D];東華大學;2011年

10 李娜;高鐵酸鉀同時去除微污染水中有機物和重金屬的研究[D];太原理工大學;2010年

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本文編號：1968896