Electron beam treatment of textile dyeing wastewater: operation of pilot plant and industrial plant construction.

A pilot plant for treating 1000 m3/day of dyeing wastewater with e-beam has been constructed and operated since 1998 in Daegu, Korea together with the biological treatment facility. The wastewater from various stages of the existing purification process has been treated with an electron beam in this plant, and it gave rise to elaborating the optimal technology of the electron beam treatment of wastewater with increased reliability for instant changes in the composition of wastewater. Installation of the e-beam pilot plant resulted in decolorizing and destructive oxidation of organic impurities in wastewater, appreciable reduction of chemical reagent consumption, in reduction of the treatment time, and in increase in the flow rate limit of existing facilities by 30-40%. Industrial plant for treating 10,000 m3/day each, based upon the pilot experimental result, is under construction and will be finished by 2005. This project is supported by the International Atomic Energy Agency (IAEA) and Korean Government.

[Two cases of diagnosis of right ventricular myocardial infarction]. / Dva sluchaia diagnostiki infarkta miokarda pravogo zheludochka.

Right ventricular myocardial infarction (RVMI) occurs rather rarely, under the mask of various diseases and is not easy to detect. Hypo-vate prognosis. Intravital diagnosis of RVMI was successful in 4 patients. Location of the lesion and its extent were determined. This article reports two cases of the four. The disease onset manifested with dyspnea, dry cough, attacks of night asphyxia then symptoms of right ventricular failure arose and intensified. The clinical picture, typical ECG signs suggested the RVMI diagnosis. However, its verification, precise localization and estimation of the lesion size were possible only after balanced radioventriculography.