兰州市餐饮油烟污染排放治理技术研究

发布时间：2018-04-21 07:11

本文选题：餐饮油烟 + 复合式油烟净化系统　；参考：《兰州大学》2015年硕士论文

【摘要】：餐饮油烟污染已成为大气污染不能忽略的重要组成部分,由于餐饮油烟扰民导致的投诉事件也是屡见不鲜。食品烹调过程中产生的餐饮油烟会对烹调者的身体产生一定的危害,其危害主要体现在餐饮油烟会对呼吸系统造成一定的影响并可能造成一些呼吸系统病变。另外餐饮油烟的过度排放还会造成严重的城市大气污染事件,例如光化学烟雾及雾霾。现阶段兰州市内的餐饮企业油烟排放超标率达到了80%以上,多数餐饮企业由于环保意识薄弱以及经济条件有限等多方面的因素,并没有安装并使用有效的餐饮油烟处理设备。本次研究主要结合了调查、设计、实验三部分,力求解决餐饮油烟过量排放这一问题。监测试验选取了油烟浓度及多环芳烃类物质两项检测指标,监测点随机选取了兰州市内12家餐饮企业,使用了烟道内油烟平行采样仪监测了油烟及多环芳烃类物质的产生浓度以及排放浓度。最终结合实验具体数据,同时总结文献中已有的油烟净化方法,设计一种适用于兰州市大中型餐饮企业的油烟净化装置,实现油烟的达标排放。新式油烟净化装置使用了三段式的油烟净化思路,即前段优化集气罩过滤网,对油烟进行初步的净化；中段使用碰撞式油烟净化装置,对油烟进行有效的处理；末端使用吸附材料,对油烟进行最后一步净化,使油烟排放浓度达到最低。通过实际监测实验证实该种新型油烟净化装置的处理效率及处理后排放烟气的浓度都达到国家相关排放标准,通过净化处理系统处理后烟气浓度降低到1.4mg/m3,预计处理效率达可到80%以上。设备投资以及运行费用适中,设备维护以及操作十分简便。总体来说,本次设计的新型油烟净化系统具有一定的实用价值并值得推广
[Abstract]:Cooking oil fume pollution has become an important part of air pollution. The cooking oil fume produced in the course of food cooking will cause certain harm to the body of the cook. The harm is mainly reflected in the influence of the cooking oil fume on the respiratory system and some respiratory system diseases. In addition, excessive emissions of cooking oil fumes can also cause serious urban air pollution events, such as photochemical smog and haze. At the present stage, the rate of oil fume emission exceeds 80% in the catering enterprises in Lanzhou. Because of the weak consciousness of environmental protection and limited economic conditions, most catering enterprises have not installed and used effective cooking fume treatment equipment. This study mainly combines investigation, design and experiment to solve the problem of excessive emission of fume. The oil fume concentration and polycyclic aromatic hydrocarbons (PAHs) were selected in the monitoring test, and 12 restaurants in Lanzhou were randomly selected at the monitoring point. The generation and emission concentrations of oil fumes and polycyclic aromatic hydrocarbons (PAHs) were monitored by using a smoke parallel sampler in flue. Finally, combining with the experimental data and summarizing the existing methods of oil fume purification in literature, a kind of oil fume purification device suitable for large and medium-sized catering enterprises in Lanzhou was designed to achieve the standard of soot emission. The new type of oil fume purifying device uses three-stage oil fume purification thought, that is, the front section optimizes the gas collecting cover filter net to carry on the preliminary purification to the oil fume, the middle section uses the collision type oil fume purification device, carries on the effective treatment to the oil fume; The final step of purifying the oil fume was carried out by using the adsorption material at the end, so that the exhaust concentration of the oil fume reached the lowest. Through the actual monitoring experiment, it is proved that the treatment efficiency and the concentration of flue gas after treatment of this new type of oil fume purification device are up to the relevant national emission standards. The concentration of flue gas was reduced to 1.4 mg / m ~ (3) by purification treatment system, and the treatment efficiency was estimated to be more than 80%. The equipment investment and operation cost is moderate, the equipment maintenance and the operation are very simple. Generally speaking, the new type of oil fume purification system designed this time has certain practical value and is worth popularizing.
【学位授予单位】：兰州大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X799.3

【参考文献】