本文選題：含油污水　切入點：聚結(jié)　出處：《北京化工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：含油污水作為環(huán)境污染的重要方面之一,對當(dāng)前環(huán)境的影響非常嚴(yán)重,因此,對含油污水的處理是一個不能忽視和逃避的問題。本文基于理論與實驗相結(jié)合的方法,用含油污水聚結(jié)處理裝置對特定的含油污水進(jìn)行了實驗研究,主要工作如下：(1)給出了油滴上浮速度公式和除油效率公式：闡述了聚結(jié)分離的過程和機理,分析了影響濾芯式聚結(jié)處理裝置分離性能的因素；(2)對選用的兩種材料進(jìn)行微觀形貌測試分析,得出了玻璃纖維材料是相對光滑的表面結(jié)構(gòu),而不銹鋼纖維材料是較粗糙的表面結(jié)構(gòu),通過對兩種材料進(jìn)行接觸角試驗,驗證了兩種材料均是親油疏水性的聚結(jié)材料,設(shè)計了褶狀結(jié)構(gòu)的濾芯,骨架強度校核的結(jié)果滿足使用要求；(3)用含油污水聚結(jié)處理裝置對玻璃纖維和不銹鋼纖維濾芯進(jìn)行實驗,研究表明：流量和入口含油量的增加均能使入口壓力增加,但是流量是影響壓力升高的主要因素。對改性聚丙烯腈纖維線繞濾芯、玻璃纖維濾芯和不銹鋼纖維濾芯進(jìn)行對比,實驗表明：在相同工況下,未添加乳化劑時,不銹鋼纖維濾芯的入口壓力最小,出口含油量最低,玻璃纖維濾芯的入口壓力稍高,出口含油量較高,而改性聚丙烯腈纖維線繞濾芯的入口壓力最高,出口含油量最高；在處理不同油品時,三種濾芯的聚結(jié)分離性能基本不變。對添加乳化劑后的污水進(jìn)行實驗表明,三種濾芯的出口含油量均增加較快,聚結(jié)分離性能均有不同程度的降低,表明這三種濾芯均比較適合處理破乳后的含油污水。
[Abstract]:As one of the important aspects of environmental pollution, oily sewage has a very serious impact on the current environment. Therefore, the treatment of oily sewage is a problem that can not be ignored and avoided. An experimental study on the specific oily sewage was carried out by using an oil-bearing sewage coalescence treatment device. The main work is as follows: (1) the oil droplet floating speed formula and the oil removal efficiency formula are given. The process and mechanism of coalescence separation are described. The factors affecting the separation performance of the filter type coalescence treatment unit were analyzed. The microstructure of the two materials selected was tested and analyzed. The glass fiber material was obtained as a relatively smooth surface structure. The stainless steel fiber material is a rough surface structure. Through the contact angle test of the two materials, it is verified that the two materials are oil-hydrophobic coalescence materials, and the filter element with pleated structure is designed. The results of skeleton strength check meet the requirement of application. (3) the filter elements of glass fiber and stainless steel fiber are tested with oil-bearing sewage coalescence treatment device. The results show that the inlet pressure can be increased with the increase of flow rate and inlet oil content. But the flow rate is the main factor that affects the pressure rise. The comparison of the modified polyacrylonitrile fiber wire-wound filter, glass fiber filter and stainless steel fiber filter shows that under the same working condition, the emulsifier is not added. The inlet pressure of the stainless steel fiber filter is the smallest, the oil content at the outlet is the lowest, the inlet pressure of the glass fiber filter is slightly higher, and the oil content at the outlet is higher, while the inlet pressure of the modified polyacrylonitrile fiber is the highest and the oil content at the outlet is the highest. In the treatment of different oil products, the coalescence separation performance of the three kinds of filter elements is basically unchanged. The experiment on sewage after adding emulsifier shows that the oil content at the outlet of the three filter elements increases rapidly, and the coalescence separation performance decreases in varying degrees. These three kinds of filter elements are suitable for treating oily sewage after demulsification.
【學(xué)位授予單位】：北京化工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：X703.3

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本文編號：1636529