Study On Recelying Diatomite Filration Performance And Its Application

As China's beer output of the rapid increase in beer production process in the discharge of waste water, waste residue number is growing, is causing serious environmental pollution in China one of the factors that exacerbate. The production of beer using the filter aid waste is an important source of pollution. Diatomite to the scrap recycling, for the brewery can save a lot of diatomite raw materials and reduce the cost of beer production, breweries reduce waste emissions, and substantially reduce environmental pollution. Therefore, whether from economic or social benefits from the measure, the beer production process in the abandoned Recycling and the use of diatomaceous earth is of great practical significance.In this paper, Harbin (Changchun Yinpu) Limited fermentation workshop provided by the waste dump diatomite samples as an example, the use of renewable deal with chemical reagents, through QB/T2088-1995 as an indicator of demand for testing, application of orthogonal Study identifies factors test pilot, the use of orthogonal polynomials regression analysis of the establishment of mathematical models and the strengthening of the recovery diatomite pilot study.In this study of laboratory conditions, diatomite and raw materials for recycling diatomite filtration constant pressure test. Specific conclusions are as follows:1. The use of single-factor test v - t have the data for mapping and linear regression can be a straight line. Fitting the slope of a straight line C1 and C2 intercept a cake representing the resistance and medium resistance characteristics, they reflect the changes in the cake resistance, compressibility and the resistance of the medium.2. In the process of cake, the size of diatomite formation of the cake loose structure, filtration resistance small, fast filtration rate, the small size of the cake structure of materials formed relatively close, filtration resistance, the slow rate of filtration. From these different size of the filter curve fitting circumstances, we can see that stability filter similar to the period of linear, the pilot sites are relatively concentrated distribution, discrete and not that certain conditions exist filters filtering constant C1, in The different size of the filter on behalf of a straight line with the resistance between the linear particle size, if the constant filter does not exist, the present non-linear.3. n the process of cake, add a different form of diatomite gradually increasing the thickness of the cake, filtration resistance is gradually increasing, will directly affect the filtration rate. Therefore, the amount of resistance between the cake and there are certain relations, with the amount of resistance to change and the changes.4. After filtration enhanced performance test, diatomite recovery in different content, particle size and distribution width of the extent appropriate, recovery of raw materials diatomite and diatomite filtration of no great differences in a proper mixing ratio can be put into use again.5. By orthogonal test, the recovery of diatomite enhanced filter performance test, designed by orthogonal polynomial regression method of regression analysis, the conclusion is as follows:The statistical test, fitting the equation, and its significant level of 0.01, that is the equation for the 99 percent confidence level.Because of the time and the limited test conditions, the paper only add to the volume, size and size distribution width of a constant pressure filter test. Taking into account the practical application of diatomaceous earth filter aid may be pressure on the poor, slurry viscosity, temperature and other factors slurry in-depth study.This study was conducted in the laboratory, to its conclusions applied to practical, but also need to design-related test equipment, simulated the actual production process, further in-depth study.