- 康康map
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Because trash infiltration fluid pollution duration is long, easy to create the serious two contamination concern, thus carries on the effective collection and processing to the infiltration fluid has become in the urban environment the pending issue, simultaneously trash infiltration fluid processing technology also is one of international on research hot topics.Trash infiltration fluid is the highly concentrated organic waste water, the infiltration duration is long, can cause the serious pollution to the periphery ground water and the surface water.Catalyzes the wet oxidized technology is one processing high potency organic waste water effective method, under the high temperature, the high pressure, the oxygen or the air takes the oxidant by the liquid phase in, and joins the catalyst, in the deuterium oxide dissolves condition either the suspended state organic matter or the return to original state condition inorganic substance, causes selective oxidations and so on in sewage organic matter, ammonia nitrogen to decompose CO2, H2O, and N2 and so on the innoxious substance, achieved the purification goal, its characteristic is the purification efficiency is high, the flow is simple, the area are few.Catalyzes the wet oxidized effect mainly factor and so on catalyst characteristic, reaction temperature, reaction time, original fluid density, oxygen partial pressure influences, among, the catalyst is one of catalyzed wet oxidation process determining factors, therefore, the screening preparation has the high catalytic activity catalyst especially to be important. The present paper to catalyzes wet type oxidizes the Mn-Ce compound oxide compound catalyst preparation process which in the butyric acid process uses to carry on the mathematical simulation, has established the influence catalyst preparation three primary factors (metal allocated proportion, roasting temperature, roasting time) the single factor and joins the interactive factor function three factor influence rule mathematical model, and to the mathematical model optimization which establishes solves, and three factors separately to catalytic activity influence significance sorting. First, uses the citric acid complexing flameless combustion legal system to prepare the Mn-Ce compound oxide compound catalyst the experiment, obtains the correlation data.Selects three major effect factors according to the testing plan (metal allocated proportion, roasting temperature, roasting time) the different horizontal value, prepares the catalyst, then using the catalysis wet oxidizing reaction TOC elimination rate took the appraisal catalytic activity basis, obtains needs the data. Next, establishes the mathematical model.Because the catalyst preparation process chemical reaction is a complex system, therefore, in the present paper applies the statistical regression analysis method establishment mathematical model, by seeks the extreme value form optimization solves each influence factor (metal allocated proportion, roasting temperature, roasting time) mathematics equation in the range of validity, the use variance analysis method to three factors to Mn-Ce compound oxide compound catalyst preparation function significance sorting.Large-scale value software MATLAB took the main auxiliary means, through compile its procedure statement to complete the realization which the mathematical model and the optimization solves. Through to the empirical datum analysis, separately has first established the single factor influence catalyst preparation rule mathematical model; Next, has joined during consideration factor respective influence to the factor the correlation factor consideration, established has joined the mathematical model which three factors (metal allocated proportion, roasting temperature, roasting time) affected together, and through confirmation; To the mathematical model optimization which establishes solves, obtains has the high catalytic activity catalyst preparation condition; Obtains through the variance analysis: The roasting temperature is remarkable to the catalyst active influence, the roasting time is not remarkable to the catalyst active influence, the metal allocated proportion has the highly remarkable influence to the catalyst activeness, and three factor primary and secondary relations are: Metal allocated proportion> roasting temperature> roasting time. The result indicated that, the mathematical model may establish the factor (metal allocated proportion, roasting temperature, roasting time) to the catalyst preparation influence rule, the optimized solution and may help the experiment to factor function significance sorting to seek the most superior condition quickly, prepares has the high catalytic activity catalyst, obtains satisfaction result.Therefore, the catalyst preparation process mathematical simulation, may play the forecast to analyze and to optimize the result, reduces the waste, saves the time the role, to instructs the experiment to have the vital significance.
好长啊~~~不过很准确哦~~
- 再也不做稀饭了
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Because the garbage filtrate pollution keeps on time long, result in easily two pollution problems of[with] severity, as a result carry on to the filtrate the valid collections and processing have become the city environment in nasty treat to resolve of problem, the processing technique of the garbage filtrate is also an international last research heat to order one of the problems in the meantime.The garbage filtrate belongs to organic waste water of high density, the filtrate keeps on time long, to surroundings the groundwater and the earth"s surface water all will result in a serious pollution.Catalyst the wet type oxidize a technique is a kind of valid method that handle organic waste water of high density, under the heat,high pressure, wins the oxygen or air as oxidizing agents mutually by liquid, and join catalyst, oxidize to fuse appearance in the water, or suspend appearance, of organic matter or restore appearance, of inorganic matter, make the dirty and aquatic organic matter,the ammonia nitrogen...etc. oxidize to resolve CO2,H2 Oses,and N2 etc.ses harmless material respectively, attain the decontamination purpose, its characteristics is to purify an efficiency high, the process is simple, covering area little.Catalyst the wet type oxidize the processing result to is subjected to catalyst characteristic,respond temperature and respond time,original liquid density,oxygen mainly for cent to press etc. the influence of the factor, among them, catalyst is catalyst the wet type oxidize process of one of the decisive factors, therefore, the sieving making has catalyst of the higher catalyst activity as importance.
This thesis to catalyst the wet type oxidize sour process of positive D to carry on mathematics emulation in the Mn-Ce compound oxide catalyst making process use, building up the single factor of three main factors(the metals go together with a ratio,bake to burn temperature and bake to burn time) of the influence catalyst making and joining to hand over with each other the factor function of three the mathematics model of the factor influence regulation, and is excellent to turn to solve to the mathematics model build up, and three factor difference to catalyst the prominence row preface of[with] live influence.
First, the adoption lemon the sour integrate have no blaze combustion legal system to have Mn-Ce compound the oxide catalyst of experiment, get a related data.Select by examinations the different level value of three main influence factors(the metals go together with a ratio,bake to burn temperature and bake to burn time) according to the experiment project, make catalyst, then make use of a wet type of catalyst to oxidize the TOC of the reaction to clean rate as the basis that evaluates the catalyst activity, get the data needed.
Secondly, establishment mathematics model.Because the chemical reaction of the catalyst making process is a complicated system, therefore, the application statisticses back to return the analytical method establishment mathematics model in this thesis, with beg to take the form of the pole value in the valid scope excellent turn a square distance of mathematics of solve each influence factor(the metals go together with a ratio,bake to burn temperature and bake to burn time), make use of a square bad analytical method to three factor to Mn-Ce compound the prominence row preface of the oxide catalyst making function.The large number software MATLAB conduct and actions main assistance tool, pass to write its procedure language sentence to the completion mathematics model and excellent turn to solve of realization.
Pass the analysis to the experiment data, built up the mathematics model of the single factor influence catalyst making regulation respectively first;Secondly, at while each of the consideration is influence join to the factor hand over with each other the consideration of the function factor, build up join three factor(the metals go together with a ratio,bake to burn temperature and bake to burn time) coefficient mathematics model, and pass a verification;Making condition been excellent to turn to solve to the mathematics model build up, been have live catalyst of higher catalyst;Pass a square bad analysis:Bake to burn temperature"s influence prominence for the catalyst activity, bake to burn time to the live influence of the catalyst not prominence, the metals go together with compare have the influence of the high prominence to the activity of the catalyst, and three main time of the factor relations is:The metals goes together with a ratio>bake to burn temperature>bake to burn time.
Express mathematics model can establish factor"s(the metals go together with a ratio,bake to burn temperature and bake to burn time) regulation for the catalyst making influence as a result, excellent turn to solve and to prominence the row preface of the factor function can the in aid of experiment compare to look for to the superior condition quickly, making the catalyst that has a higher catalyst activity, getting a satisfied result.Therefore, catalyst making process of mathematics emulation, can rise the estimate analysis with excellent turn a result, reduce waste, save time of function, to instruction the experiment have important meaning.
- okok云
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