Operation In France Research Articles

Industrial-Scale Applications of Fixed Biomass on the Mediterranean Seaboard. Design, Operating Results

The technology that consists of treating sewage on submerged granular filters is now far beyond the stages of research and testing on pilot units. Fifteen or so full-scale facilities are in operation in France using, as a biological treatment stage, the fixed biomass technology as realised by the Biocarbone process, particularly for the treatment of sewage from built-up areas along the seaboard. These are cases where the advantages of this technique can be put to decisive use. The Mediterranean seaboard is an ideal site for this technology. Cases in point are the waterworks of Sanary Bandol (pop.60,000) and Perpignan (pop.160,000), that have been in operation for two years and one year respectively. Waterworks in Monaco (pop.100,000) and Antibes (pop.170,000) will be commissioned in 1989 using the same technology. Results obtained during intensive controls show that the fixed biomass, designed with a suitable industrial technology, is capable of producing in routine conditions, on full industrial-scale plant, a very good quality effluent. (COD : 70 mg/l, TSS : 20 mg/l) for pollutant loads in the order of 8 kg COD/m3 day. It enables the fluctuations in the daily flow-rate and pollution load of the influent to be absorbed. The units currently being built are examples of what can be done in compact roofed facilities incorporating a fixed biomass treatment stage, with the objective of reaching a no-nuisance level.

The use of linear accelerators for gamma radiography

The use of linear accelerators for radiography for ndt is still in its infancy. The author describes the operation of linear accelerators from the point of view of gamma radiography. He discusses the working parameters and limits. He describes installations in operation in France and proposes that hiring the facilities out by the beam-hour would best serve the development of this method of gamma radiography.

A COMMUNIST PARTY IN ACTION: AN ACCOUNT OF THE ORGANIZATION AND OPERATION IN FRANCE. By A. Rossi. Translated and edited by Willmoore Kendall. New Haven: Yale University Press, 1949. 301 pp. $4.00

A COMMUNIST PARTY IN ACTION: AN ACCOUNT OF THE ORGANIZATION AND OPERATION IN FRANCE. By A. Rossi. Translated and edited by Willmoore Kendall. New Haven: Yale University Press, 1949. 301 pp. $4.00

TORSION OF THE APPENDIX TESTIS

The first case of torsion of the appendix testis was reported by Colt 1 in 1922. In the same year Walton 2 and Shattock 3 reported one case each. Mouchet 4 was the first, however, to establish this condition as a definite pathologic entity. The fact that twenty-nine cases have come to operation in France alone during the past eight years may be attributed to his interest in the subject. Dix 5 has recently written an admirable paper on the subject and added one case for a total of forty-two cases. The standard textbooks of surgery do not discuss torsion of the appendix testis nor does a fairly extensive search of North American literature reveal any report of the condition. REPORT OF CASES Case 1.—History. —Q. F., a boy, aged 16 months, entered the surgical ward of the hospital, Oct. 22, 1931, because of swelling and tenderness of the