水力旋流分离技术在餐厨垃圾除油领域的试验研究  

Experimental Study on Hydrocyclone Separation Technology in the Field of Kitchen Waste Oil Removal

作　　者：武思谨 Wu Sijin(Qinghai Jieshen Environmental Technology Co.,Ltd,Wuhan,Hubei 430000,China)

机构地区：[1]青海洁神环境科技股份有限公司,湖北武汉430000

出　　处：《绿色科技》2023年第6期191-196,共6页Journal of Green Science and Technology

摘　　要：为研究水力旋流分离技术在餐厨垃圾除油领域的可行性,获取了较高分离效率下的工况参数,开展了利用水力旋流器进行餐厨含油废水的油水分离试验。结果表明:随着入口物料液体温度的升高,或含油率的提高,水力旋流的分离效率均呈现先上升后下降的趋势。随着物料SS浓度的提高,分离效率表现直线下降的规律,而入口压力的增加,导致分离效率明显增加,但压力过高,则分离效率会受到负面影响。较长的循环时间不利于分离效率的提高。各单项试验中,在温度85℃,含油率4.23%,SS含率0.56%,入口压力0.65 MPa,循环时间3 min的工况条件下分别取得最佳分离效率,均接近于80%。水力旋流器应用于餐厨垃圾处理工程化实例时,如需取得较高且稳定的分离效率,应优化流程设计,降低进液流体的黏度,减少油脂乳化的几率。In order to study the feasibility of hydrocyclone separation technology in the field of kitchen waste oil removal and obtain the operating parameters under high separation efficiency,the oil-water separation test of kitchen oily wastewater using hydrocyclone was carried out.The experimental results show that the separation efficiency of hydrocyclone increases first and then decreases with the increase of liquid temperature of inlet material or oil content.With the increase of SS concentration of the material,the separation efficiency shows a linear decline,while the increase of inlet pressure leads to a significant increase in separation efficiency.However,if the pressure is too high,the separation efficiency will be negatively affected.The longer cycle time is not conducive to the improvement of separation efficiency.In each single test,the best separation efficiency was obtained under the working conditions of temperature 85℃,oil content 4.23%,SS content 0.56%,inlet pressure 0.65 MPa,and cycle time 3 minutes,all close to 80%.When the hydrocyclone is applied to the engineering example of kitchen waste treatment,if it needs to achieve high and stable separation efficiency,the process design should be optimized to reduce the viscosity of the liquid inlet and reduce the probability of oil emulsification.

关 键 词：水力旋流 餐厨垃圾 油水分离 

分 类 号：X705[环境科学与工程—环境工程]