【摘要】：采集遼河油田石油污染土壤樣品并用離心法提取膠體(10～5μm、5～2μm、2μm),定性和定量研究石油污染土壤以及土壤膠體的主要理化性質(zhì)。通過(guò)間歇實(shí)驗(yàn)研究不同pH(pH=4-9)、不同價(jià)態(tài)陽(yáng)離子(Na+、Ca2+和Fe3+)和不同價(jià)態(tài)陰離子(NO3-、SO42-和P043-)存在下的膠體穩(wěn)定性,并比較陽(yáng)離子存在下石油污染土壤膠體和未受污染土壤膠體穩(wěn)定性。通過(guò)淋濾實(shí)驗(yàn)研究石油污染土壤膠體在不同粒徑(10～5μm、5～2μm、2μm)、溶液pH(3、6、9)和IS(0.001 mM、0.1 Mm、0.5 mM)環(huán)境條件下在土柱中運(yùn)移規(guī)律以及對(duì)菲的易化運(yùn)移作用。研究結(jié)果表明,石油污染土壤膠體穩(wěn)定性隨溶液的pH、陽(yáng)離子、陰離子的變化而產(chǎn)生變化。并隨著土壤膠體粒徑的減小、溶液離子強(qiáng)度的減小和溶液pH的增加,土壤膠體的沉積能力減弱,運(yùn)移能力增強(qiáng)。粒徑2μm的土壤膠體對(duì)菲的運(yùn)移程度最大,其次為粒徑10～5 μm和5～2 μm,其淋出液中菲含量分別增加了142.42%、36.36%、 96.97%。石油污染土壤膠體對(duì)菲的運(yùn)移能力隨pH的增加而增加,隨IS增加而減小。但當(dāng)1S=0.5 mM時(shí),石油污染土壤膠體對(duì)菲沒(méi)有易化運(yùn)移作用,其淋出液中菲含量減少了9.09%。
[Abstract]:The oil contaminated soil samples from Liaohe Oilfield were collected and the colloids (10 ~ 5 渭 m, 5 ~ 2 渭 m, 2 渭 m) were extracted by centrifugation. The main physical and chemical properties of oil contaminated soil and soil colloid were studied qualitatively and quantitatively. The colloid stability in the presence of different pH (pH=4-9), different valence cations (Na, Ca2 and Fe3, and different valence anions (NO3-,SO42- and P043 -) was studied by batch experiments. The stability of petroleum-contaminated soil colloid and unpolluted soil colloid in the presence of cationic ions was compared. The oil contaminated soil colloids with different particle sizes (10 ~ 5 渭 m, 5 ~ 2 渭 m, 2 渭 m), solution pH (3,6,9) and IS (0.001 mM,0.1 Mm,) were studied by leaching experiments. 0.5 mM) migration law in soil column and facilitation of migration to phenanthrene under environmental conditions. The results showed that the stability of petroleum contaminated soil colloid changed with the change of pH, cation and anion in the solution. With the decrease of the particle size of the soil colloid, the decrease of the ionic strength of the solution and the increase of the solution pH, the deposition ability of the soil colloid decreases and the migration ability of the soil colloid increases. The soil colloid with the diameter of 2 渭 m had the largest migration of phenanthrene, followed by 10 渭 m and 5 渭 m, and the content of phenanthrene in the eluate increased by 142.42%, 36.36% and 96.97%, respectively. The migration capacity of petroleum-contaminated soil colloids to phenanthrene increased with the increase of pH and decreased with the increase of IS. However, when 1S=0.5 mM was used, the oil-contaminated soil colloids did not facilitate the transport of phenanthrene, and the content of phenanthrene in the eluate decreased by 9.09%.
【學(xué)位授予單位】：遼寧工程技術(shù)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：X53

【參考文獻(xiàn)】

相關(guān)期刊論文 前9條

1 賈曉洋;姜林;夏天翔;姚玨君;梁競(jìng);樊艷玲;鐘茂生;;焦化廠土壤中PAHs的累積、垂向分布特征及來(lái)源分析[J];化工學(xué)報(bào);2011年12期

2 潘峰;耿秋娟;楚紅杰;王利利;;石油污染土壤中多環(huán)芳烴分析及生態(tài)風(fēng)險(xiǎn)評(píng)價(jià)[J];生態(tài)與農(nóng)村環(huán)境學(xué)報(bào);2011年05期

3 商書波;王豐雨;李緒謙;;土壤膠體理化性質(zhì)對(duì)其穩(wěn)定性和可移動(dòng)性的影響研究[J];土壤;2010年06期

4 劉五星;駱永明;滕應(yīng);李振高;吳龍華;;我國(guó)部分油田土壤及油泥的石油污染初步研究[J];土壤;2007年02期

5 湯莉莉;牛生杰;朱永官;許瀟鋒;陳魁;李芳;;北京市部分地區(qū)土壤和植物中多環(huán)芳烴的分布[J];南京氣象學(xué)院學(xué)報(bào);2006年06期

6 楊嫻;饒品華;何明;;土壤環(huán)境中粘粒的分散——凝聚行為及其影響因素[J];上海交通大學(xué)學(xué)報(bào)(農(nóng)業(yè)科學(xué)版);2006年05期

7 占新華,周立祥;多環(huán)芳烴(PAHs)在土壤-植物系統(tǒng)中的環(huán)境行為[J];生態(tài)環(huán)境;2003年04期

8 孫清,陸秀君,梁成華;土壤的石油污染研究進(jìn)展[J];沈陽(yáng)農(nóng)業(yè)大學(xué)學(xué)報(bào);2002年05期

9 胡瓊英，，蘭葉青，薛家驊;土壤膠體穩(wěn)定性影響因素[J];土壤;1996年06期

相關(guān)碩士學(xué)位論文 前1條

1 王凱麗;膠體作用下Zn/Cd在不同質(zhì)地土壤中的運(yùn)移實(shí)驗(yàn)及其數(shù)值模擬[D];青島大學(xué);2010年

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