<報文>濁水の磁界処理について

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For the purposes to attain the clarification of suspensions including clay or bentonite fine particles by the magnetic treatment, the effect of the magnetic treatment conditions on the decreasing rate of absorbance of the suspensions were investigated by the use of permanent and electric magnets in the magnetic field intensity range from about 1.0 to 15.0KG. The decreasing rate of absorbance was calculated from the absorbances, which were measured by the use of the double beam type spectro-photometer, at start and at 30 min after. The solid concentrates of these supenions, which were flown under the state of laminar or turbulent through the pipes made of stainless steel, copper and quartz glass setting between the magnetic poles, were about 400 to 600ppm in clay suspension and about 2200 to 2500ppm in bentonite one. The more the decreasing rate of absorbance increases, the more the clarification of the suspension improves. In the clay suspension, the clarification is slightly expected to the improved under the turbulent flow state in the magnetic field intensity range above about 10 KG. However, the degree of the effect of magnetic treatment on the clarification of the suspension is so wean that it may be difficult to distinguish the magnetically treated suspension from the magnetically untreated one with eyes. On the other hand, in the bentonite suspension, observing the decreasing rate of absorbance in the magnetic field intensity range from about 1.0 to 5.5KG, it is difficult to find apparently the effect of the magnetic treatment on the clarification of the suspension because of large influence of the stream condition. Consequently, it might be thought that the possibility of the practical application of the magnetic treatment to the clarification of suspension including fine particles is still unknown at this stage.
東北大学の論文
1982-10-20

<報文>濁水の磁界処理について

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