一种新型含油污泥清洗剂的研究

Study on an Novel Type of Oily Sludge Cleaning Agent

茶皂素是一种从茶树籽中提取出的性能良好的天然非离子表面活性剂,将茶皂素与烷基酚聚氧乙烯醚类表面活性剂(OP)、硅酸钠(Na2SiO3)、脂肪醇聚氧乙烯醚(AEO)、仲烷基磺酸钠(SAS)进行复配,筛选出一种清洗效率高、环境友好的新型含油污泥清洗剂。该清洗剂茶皂素、Na2SiO3、AEO、NaHCO3质量比为1∶3∶3∶3,最优清洗条件为热水浴温度65℃、搅拌时间40 min、转速100 r/min、溶液pH值为10、最佳处理量为2.0 g含油污泥/50 mL清洗剂,优化的二次清洗剂浓度为0.3 g AEO/50 mL蒸馏水。该清洗剂和二次清洗剂可以较好的处理含油污泥,脱油率最高可达95.35%。

Tea saponin is a kind of natural non-ionic surfactant with good properties extracted from tea seeds.By using tea saponin and existing cleaning agent to be compounded in certain proportion,it can be expected that the benefits,including high efficiency and environmental friendliness,can be obtained from an novel type of oily sludge cleaning agent through screening.Tea saponin is compounded with alkylphenol ethoxylates(OP),sodium silicate(Na2SiO3),fatty alcohol polyoxyethylene ether(AEO)and sodium secondary alkyl sulfonate(SAS),respectively.Tea saponin,Na2SiO3,AEO,NaHCO3 optimized ratio was 1∶3∶3∶3,which obtains from a series of experiments.The results show that hot water bath temperature is 65℃;the stirring time is 40 min;the speed is 100 r/min;the solution pH is 10;the maximum handling capacity is 2.0 g of sludge per 50 mL of this cleaning agent;this optimized secondary cleaning agent is 0.3 g of AEO per 50 mL of distilled water.Both this cleaning agent and this secondary cleaning agent can better deal with oily sludge,and the highest rate of oil removal can reach 95.35%.