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本文对石油污染水源水的水质综合分析、净化工艺及生物处理进行较全面的研究。试验研究结果如下:(1)石油污染水源水中检出大量石油有机污染物与毒性物质,具有较强的致突活性和致畸性;部分经处理后的饮用水中仍存在一定量的石油有机污染物、致突活性和致畸性;(2)石油污染地下水中AOC水平达400～700μg乙酸-C/L,且随季节有较大波动;经深度处理(臭氧氧化、活性炭吸附)后饮用水的AOC水平仍高于100μg乙酸-C/L,表现出生物不稳定性;饮用水的AOC水平与工艺运行、配水管网情况有关。(3)生物预处理工艺能有效去除水中有机物(COD)20～30％和无机营养物(NH_3-N)80～90％及石油污染物40％,降低水中AOC40％,同时有效控制水中微量有机污染物和水的致突活性,提高水的生物稳定性。结合生物预处理的传统工艺在控制水中有机污染物和致突活性方面明显优于其它组合工艺,保证饮水水质,是净化石油污染水源的最佳工艺组合。(4)凡使水中有机物小分子化,含羰基基团有机物比例增加的水处理技术将导致水的高度生物不稳定。对于臭氧氧化技术,必须与能有效减少水中有机物的生物技术或活性炭技术连接,以提高水的生物稳定性。(5)易降解有机物质对石油的生物降解无明显的增强;对于石油中难降解的芳香烃类物质,有可能因易降解底物的竞争而
In this paper, a comprehensive study on the comprehensive analysis of water quality, purification process and biological treatment of petroleum-polluted source water is carried out. The experimental results are as follows: (1) A large number of petroleum organic pollutants and toxic substances were detected in petroleum-polluted source water, which has strong activity of protrusion and teratogenicity; some of the treated drinking water still contains a certain amount of petroleum organic substances. Contaminants, protrusion activity and teratogenicity; (2) AOC levels in petroleum-contaminated groundwater range from 400 to 700 μg acetic acid-C/L, and fluctuate with seasons; drink after advanced treatment (ozone oxidation, activated carbon adsorption) The AOC level of water is still higher than 100 μg acetic acid-C/L, showing biological instability; the AOC level of drinking water is related to the process operation and the situation of the distribution network. (3) The biological pretreatment process can effectively remove organic matter (COD) from 20 to 30% in water, 80 to 90% of inorganic nutrients (NH_3-N) and 40% of petroleum pollutants, reduce AOC40% in water, and effectively control trace organics in water. The contaminant and water’s protrusion activity enhances the biological stability of the water. The traditional biological pretreatment process is superior to other combinations in the control of organic pollutants and water-contamination activity in water and ensures the quality of drinking water. It is the best combination of technologies for purifying petroleum-polluted water sources. (4) Where water molecules are used to make small organic molecules in water, the proportion of organic compounds containing carbonyl groups increases. This will lead to high biological instability of the water. For ozone oxidation technology, it must be connected with biotechnology or activated carbon technology that can effectively reduce organic matter in water to improve the biological stability of water. (5) Easily degradable organic substances have no significant increase in the biodegradation of petroleum; for oils that are difficult to degrade aromatic hydrocarbons, they may be subject to competition from easily degradable substrates.