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
[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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