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蘇州市主要水體、飲用水及餐飲用具壬基酚污染狀況調(diào)查及其去除方法研究

發(fā)布時間:2019-03-18 17:59
【摘要】:目的: 壬基酚廣泛應用于紡織、印染、洗滌劑生產(chǎn)等行業(yè),是生產(chǎn)清潔劑、個人護理用品、樹脂、顏料、農(nóng)藥等的原料,也是燃油、潤滑油及聚合物的助劑。國內(nèi)外壬基酚的使用量逐年增加,壬基酚已滲透進人們生活的方方面面,成為不可忽視的新的環(huán)境污染物。研究表明,壬基酚具有一定的雌激素效應,屬于環(huán)境內(nèi)分泌干擾物,可影響內(nèi)分泌系統(tǒng)、生殖系統(tǒng)、免疫系統(tǒng)、神經(jīng)系統(tǒng)等功能,影響生長發(fā)育,促進癌癥的發(fā)生等。本課題通過建立和完善固相萃取-高效液相-質(zhì)譜聯(lián)用的方法,檢測了蘇州市各類水體中壬基酚濃度,還對自來水、市售礦泉水壬基酚濃度,以及餐飲用具在使用過程中壬基酚的釋出量進行了檢測,并采用幾種常用的水處理方法嘗試去除壬基酚,為了解蘇州地區(qū)壬基酚污染狀況,探討壬基酚的去除方法提供初步資料。 方法:本研究分為以下四個部分: 1.采用固相萃取-高效液相-質(zhì)譜聯(lián)用技術(shù)檢測水樣中壬基酚含量,對實驗條件進行了探討和優(yōu)化。 2.檢測蘇州市各類水體中壬基酚的含量,包括地面水、地下水、自來水廠水源水和末梢水、泉水以及雨水。 3.測定市售常見品牌的桶裝水、瓶裝水中壬基酚含量以及各類餐飲用具使用過程中壬基酚的釋出量。 4.采用多種方法處理含壬基酚的水樣,包括目前自來水廠常用的水處理方法,探討單一水處理方法和聯(lián)合水處理方法對水中壬基酚的去除效果。 結(jié)果: 1.當壬基酚濃度為1-500ng/L時,本方法的檢測限為5ng/L,加標回收率為69.46-89.28%,日內(nèi)精密度在3.13%~4.22%之間,日間精密度在5.22%~5.30%之間。 2.蘇州市各類水體中都能檢出壬基酚,濃度在3.76μg/L-208.00μg/L。具體如下:尚湖3.76μg/L,東太湖26.25μg/L,長江常熟段55.40μg/L,京杭大運河蘇州段83.90μg/L,陽澄湖208.00μg/L,尚湖3.76μg/L,淀山湖157.00μg/L,澄湖93.50μg/L,井水26.84μg/L,,泉水1.07μg/L,雨水7.09μg/L。 3.蘇州市自來水源水中壬基酚濃度為3.76-46.70μg/L,平均值21.71μg/L;自來水末梢水壬基酚濃度為1.35-24.70μg/L,平均值7.28μg/L。 4.蘇州地區(qū)市售主要品牌瓶裝水和桶裝水都能檢出壬基酚,濃度在0.02~0.34μg/L,各類餐飲用具使用過程中壬基酚的釋出量為0,02~18.10μg/L。 5.各類處理方法對水樣中壬基酚均具有一定的去除作用,去除率在50.91~93.95%。單一處理法中,煮沸的去除效果最好,為90.64%,其余去除率在50.91~87.23%。聯(lián)合處理法中,混凝沉淀過濾加氯化消毒處理的效果最好,去除率為93.95%。其余方法的去除率在70.27~91.23%。 結(jié)論: 1.采用固相萃取-高效液相-質(zhì)譜聯(lián)用技術(shù)分析水樣中壬基酚,其檢測限、加標回收率和精密度滿足檢測需要,符合方法學要求。 2.蘇州市各類水體已普遍受到壬基酚污染,部分地面水污染較嚴重,地下水、泉水、雨水污染程度相對較輕。 3.市售主要品牌瓶裝水和桶裝水都能檢出壬基酚,各類餐飲用具使用過程中也會釋出壬基酚。自來水源水和末梢水均能檢出壬基酚,末梢水中壬基酚濃度較相應源水明顯下降,表明目前的水處理方法可去除大部分壬基酚,但還不能完全去除。 4.多種處理方法對水中壬基酚均具有一定的去除作用,聯(lián)合處理的效果優(yōu)于單一處理,應盡可能采用聯(lián)合處理方法。
[Abstract]:Purpose: Nonylphenol is widely used in the fields of textile, printing and dyeing, and detergent production. It is a raw material for the production of cleaning agents, personal care products, resins, pigments, pesticides and the like, and also is the assistant of the fuel, the lubricating oil and the polymer. The use amount of nonylphenol at home and abroad is increasing year by year, and nonylphenol has penetrated into all aspects of people's life and becomes a new environmental pollution that can't be ignored The research shows that nonylphenol has certain estrogen effect, and belongs to the environment endocrine disrupters. It can affect the functions of endocrine system, reproductive system, immune system, nervous system and so on, and can influence the growth and development of the cancer and promote the occurrence of cancer. In this paper, by establishing and perfecting the method of solid-phase extraction and high-performance liquid-phase-mass spectrometry, the concentration of nonylphenol in various water bodies in Suzhou is detected, and the concentration of nonylphenol in tap water, commercial mineral water, and the release of nonylphenol in the process of use are also tested. Several commonly used water treatment methods were used to remove nonylphenol, and to understand the non-nonylphenol pollution in the Suzhou area, the paper discussed the method of removing nonylphenol from nonylphenol. Materials. Methods: The study is divided into the following four: 1. The content of nonylphenol in water samples was detected by solid-phase extraction and high-performance liquid-phase-mass spectrometry. The experimental conditions were carried out. To explore and optimize the content of nonylphenol in various water bodies in Suzhou, including surface water, ground water, water source water and peripheral water of water works. 3. Determination of the content of nonylphenol in bottled water, bottled water, and the use of all kinds of food and beverage 4. The release amount of nonylphenol in the process.4. Using a variety of methods to treat water samples with nonylphenol, including water treatment methods commonly used in waterworks, to explore a single water treatment method and a combined water treatment method to the water The results were as follows:1. When the concentration of nonylphenol is 1-500 ng/ L, the detection limit of this method is 5 ng/ L, the recovery rate of the spike is 69.46-89.28%, and the intra-day precision is between 3.13% and 4.22%. Between 5.22% and 5.30%, nonylphenol can be detected in all kinds of water in Suzhou, and the concentration is 3. 76. mu. g/ L-208.00. m u.g/ L. Specific examples are as follows: Shanghu 3.76. mu.g/ L, East Taihu Lake 26.25 & mu; g/ L, Changshu section of the Yangtze River 55.40 & mu; g/ L, Suzhou section of Beijing-Hangzhou Grand Canal, 83.90 & mu; g/ L, Yangcheng Lake, 208.00 & mu; g/ L, Shanghu 3.76 & mu; g/ L, Dianshan Lake, 157.00 & mu; g/ L, Chenhu 93.50 & mu; g/ L, well water, 26.84 & mu; g/ L, spring water 1. The concentration of nonylphenol in tap water in Suzhou was 3.76-46.70 & mu; g/ L, the average value was 21.71 & mu; g/ L, and the concentration of nonylphenol in tap water was 1.35-24. 70. mu. g/ L, average value 7.28. mu. g/ L.4. The main brand of bottled water and barreled water in the Suzhou area can be detected with nonylphenol, the concentration is 0.02-0.34. m The release amount of the base phenol is 0,02-18.10. mu. g/ L.5. All kinds of treatment methods have one of the nonylphenol in the water sample. The removal efficiency of the removal is in the range of 50.91-93.95%. The removal effect of boiling is the best in the single treatment method, and the removal efficiency is 90%. .64%, the remaining removal rate was 50.91-87.23%. The combined treatment method, coagulation and precipitation filtration The effect of chlorination and disinfection treatment is the best, and the removal rate is 93.95. %. it The removal rate of the residual method is 70.27-91.23%. Conclusion:1. The nonylphenol in water sample is analyzed by solid-phase extraction-high performance liquid-phase-mass spectrometry. The detection limit, the recovery and the precision of the spike meet the detection requirements and meet the requirements of the methodology.2. The various water bodies in Suzhou have been generally contaminated with nonylphenol Some of the ground water pollution is more serious, and the groundwater, spring water and rain pollution degree are relatively light.3. The main brand bottle in the market Nonylphenol can be detected in both water and barreled water, and nonylphenol can also be released during the use of all kinds of food and beverage utensils. Nonylphenol can be detected in tap water source water and tip water, and the concentration of nonylphenol in the peripheral water is more obvious than that of the corresponding source water. The decrease indicates that the present water treatment method can remove most of the nonylphenol, but can not be completely removed.
【學位授予單位】:蘇州大學
【學位級別】:碩士
【學位授予年份】:2013
【分類號】:R123.5;X505

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