Preparation And Application Of Oily Sludge Solidifying Agent

With the improvement of relevant environmental protection laws and regulations,sludge disposal has become a concern.In this paper,the extraction device was used to measure the water content,solid content and oil content:32.50%,37.59%and 29.91%in PJ03 group;35.08%,11.70%and53.22%in XJ03 group.Thermal analysis,micro-morphology analysis and contact angle test were carried out on PJ03.PJ03 was subjected to thermal analysis,micro-morphology analysis and contact angle test.It is known that PJ03 sludge contains more than 60%of heavy oil in the oil phase.The sludge is mainly montmorillonite which is thermally stable and easily hydrated.The solid phase also has the oleophobicity in the wet state.The experiment cleaned two kinds of sludge.Researched two kinds of sludge cleaning agent formula.Under the same conditions,the main components of various cleaning agents?OP-10,TW-80,AEO-9,SP-80?and additives?a variety of inorganic salts and flocculants?were selected for the compound agent.For PJ03 sludge,8 g/L of FP226 compound cleaning agent mixed with 12 g/L of potassium chloride had the best treatment effect.For XJ03 sludge,6 g/L Na₂Si O₃,6 g/L LAS and 8 g/L PAC was compounded,and the treatment effect was the best.Through single factor and orthogonal test,the parameters of two kinds of sludge treatment were determined.The best process parameters of PJ03are:stirring at 80?,liquid to solid ratio of 5:1,and rotating speed of 500 r/min for 45 min.The best process parameters of XJ03 are:stirring at 75?,liquid to solid ratio of 5:1,and stirring at 400 r/min for 30min.The results show that external intervention?agitating intensity and agitating time?has a good effect on the treatment of high-liquid sludge.The elution effect?cleaner dosage ratio and cleaning temperature?of the cleaning agent is important for cleaning the sludge with clay or heavy oil.Finally,the traditional extraction method was improved.The improved picture colorimetry has a good test range?0.03-0.32 g/L?.Its accuracy is equivalent to the spectrophotometer method.With the help of RBF neural network,a wider range of measurements is achieved.The measurement of oil content by the colorimetric method of the picture can not only speed up the research on the cleaning process of sludge,but also can detect the overall cleaning process.Image colorimetry is easier to automate than other methods,and an automatic detection system can be formed to reveal detailed changes in the sludge cleaning process.