本文關(guān)鍵詞：混凝工藝對水中微量藥物去除效果與影響因素研究　出處：《北京林業(yè)大學(xué)》2012年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 藥物 混凝 高嶺土 腐殖酸 飲用水

【摘要】：天然水體中出現(xiàn)的藥物類污染物(PhACs)引起人們的廣泛關(guān)注,研究飲用水處理工藝對天然水體中的微量藥物處理效果極為必要。本文以對乙酰氨基酚(ACE)、卡馬西平(CBZ)、萘普生(NAP)、雌二醇(E2)和雙氯芬酸(DCF)五種藥物為目標(biāo)物,采用靜態(tài)燒杯試驗(yàn),研究這五種藥物在混凝過程中的去除規(guī)律,并重點(diǎn)考察了高嶺土和腐殖酸投量等因素對不同種類藥物去除效果的影響。試驗(yàn)中,采用去離子水和自來水作為原水,考察評價(jià)不同溫度與pH值下混凝對藥物的去除效果,投加高嶺土和腐殖酸來模擬水源水中的懸浮顆粒和天然有機(jī)物,考察了混凝過程中高嶺土和腐殖酸投加量對五種目標(biāo)藥物去除效能的影響。此外,研究了粉末活性炭對于藥物的吸附作用,并在混凝過程中投加粉末碳,以研究混凝-吸附組合工藝對藥物去除效果。試驗(yàn)發(fā)現(xiàn)：在未投加高嶺土與腐殖酸的去離子水體系中進(jìn)行硫酸鋁混凝試驗(yàn)時(shí),ACE與CBZ兩種藥物的最大去除率都不超過10%,五種藥物中疏水性最高的DCF去除效果最好,最高去除率達(dá)到了33%；而在自來水中進(jìn)行的試驗(yàn)混凝對藥物的去除效果也并不理想：除E2外,其余各種藥物去除率都在30%以下。高嶺土加入后對ACE與CBZ的去除效果無明顯影響,但對NAP、E2與DCF的去除則有顯著的促進(jìn)作用,最大去除率分別達(dá)到31.53%,36.46%和52.4%；而在不投加混凝劑時(shí),單獨(dú)高嶺土對五種藥物的最大吸附去除率僅有20%左右。腐殖酸的存在對E2的混凝去除效果有一定的抑制作用,但對于酸性藥物DCF與NAP的去除則有較好的促進(jìn)作用；腐殖酸與高嶺土同時(shí)加入后,也出現(xiàn)了這一相同的趨勢：NAP與DCF的去除效率得到增加,最大去除率分別達(dá)到了63.5%和66.6%�？梢�,當(dāng)水中含有懸浮顆粒物及腐殖酸的情況下,混凝工藝對酸性藥物(如NAP及DCF)有較好的去除效果。在混凝過程中投加粉末碳后,五種藥物的吸附去除效果得到了較大提高,去除率均達(dá)到80%以上,而NAP、DCF與E2去除效果更為明顯,達(dá)到了90%,說明“混凝-吸附”工藝對飲用水中藥物的去除效果較好,是保證飲用水安全的一個(gè)可行方案。
[Abstract]:Pharmaceutical pollutants appear in natural waters (PhACs) caused widespread concern, research on drinking water treatment process of trace drug in natural water treatment effect is very necessary. In this paper, acetaminophen (ACE), C Masi Bing (CBZ), naproxen (NAP), estradiol (E2) and diclofenac (DCF five kinds of drugs) as object, using the static beaker test, study the removal law of the five drugs in the process of coagulation, and focuses on the effects of kaolin and humic acid dosage and other factors on the removal effect of different types of drugs. In the experiment, using deionized water and tap water as raw water, the evaluation of different temperature and pH value of coagulation on removal of the drug, suspended particles adding kaolin and humic acid to simulate water and natural organic matter, to investigate the effect of dosage on removal efficiency of five target drugs of kaolin and humic acid in the process of setting investment Can the effect. In addition, the research of powdered activated carbon for adsorption of drugs, and in the process of coagulation and adding carbon powder, in order to study the coagulation removal of drug adsorption combined process. The test showed that without adding kaolin and humic acid in deionized water system of aluminum sulfate coagulation test. ACE and CBZ two drugs, the maximum removal rate of less than 10%, the highest five DCF hydrophobic drug removal, the highest removal rate reached 33%; tests conducted in tap water coagulation on removal effect of drugs is not ideal: in addition to E2, the removal rate of the various drugs 30%. No obvious effects of kaolin added on the removal efficiency of CBZ and ACE, but for NAP, the removal of E2 and DCF is a significant role in promoting, the maximum removal rate reached 31.53%, 36.46% and 52.4%; and in addition of coagulant, single kaolinite The maximum adsorption of five antibiotics removal rate was only 20%. The presence of humic acid on E2 coagulation removal effect to a certain extent, but for the removal of acidic drugs DCF and NAP have good effect; humic acid and kaolin is added at the same time, also appeared the same trend. The removal efficiency of NAP and DCF increased, the maximum removal rate reached 63.5% and 66.6%.. When the water containing suspended particulate matter and humic acid under the condition that the coagulation process of acidic drugs (such as NAP and DCF) has a good removal effect. In the coagulation process of powdered carbon after removal the adsorption of five kinds of drugs have been improved greatly, the removal rate reached more than 80%, while NAP, DCF and E2 removal effect is more obvious, reaching 90%, indicating "coagulation adsorption" process of drugs in drinking water removal effect is good, is to ensure the safety of drinking water A feasible scheme.

【學(xué)位授予單位】：北京林業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：R123.1

【參考文獻(xiàn)】

相關(guān)期刊論文 前7條

1 朱建英;;2008年我國醫(yī)院用藥十大藥物分析[J];世界臨床藥物;2010年01期

2 任晉,蔣可,周懷東;官廳水庫水中阿特拉津殘留的分析及污染來源[J];環(huán)境科學(xué);2002年01期

3 周雪飛;張亞雷;代朝猛;;飲用水處理中藥物和個(gè)人護(hù)理用品去除特性的研究進(jìn)展[J];環(huán)境與健康雜志;2008年11期

4 喬鐵軍;張錫輝;歐慧婷;;飲用水中藥品和個(gè)人護(hù)理用品的研究進(jìn)展[J];給水排水;2010年04期

5 張浩;羅義;周啟星;;四環(huán)素類抗生素生態(tài)毒性研究進(jìn)展[J];農(nóng)業(yè)環(huán)境科學(xué)學(xué)報(bào);2008年02期

6 鄧玉;倪福全;;水環(huán)境中抗生素殘留及其危害[J];南水北調(diào)與水利科技;2011年03期

7 安婧;周啟星;;藥品及個(gè)人護(hù)理用品(PPCPs)的污染來源、環(huán)境殘留及生態(tài)毒性[J];生態(tài)學(xué)雜志;2009年09期

，

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