Recovery of Uranium from Sea Water. Current State of Technology and Requirements of Future Research

The present status of technology for the recovery of uranium has been reviewed. Adsorbent qualities were discussed in terms of three important criteria : adsorption rate, equilibrium adsorption and chemical as well as physical stability. It was elucidated that a significant improvement of the adsorption rate is most important. Efforts were made to clarify factors influencing the adsorption rate. A method to treat a tremendous amount of sea water is of much importance as well. Pumping-up and direct use of sea currents were compared with each other. It has been emphasized that the active utilization of the various advantages of the latter method is crucial for the realization of the recovery project. The physical capability of the method was illustrated. Some composite systems with electric power generation plants were also discussed

UMBILICAL EVISCERATED GIANT HERNIA: CASE REPORT

O tratamento cirúrgico nas hérnias umbilicais gigantes complicadas (obstrução, evisceração e/ou contaminação) consiste muitas vezes em tratar a complicação em uma primeira cirurgia e posteriormente corrigir o grande defeito na parede abdominal utilizando-se uma tela de reforço. Relata-se o caso de uma paciente com hérnia umbilical gigante eviscerada no qual se realizou a cirurgia em um tempo com reforço da parede com tela, discute-se os aspectos do caso e a literatura atualSurgical treatment of complicated giant umbilical hernias (obstruction, infection) was to treat complication first and during a second surgery reinforced the abdominal wall with a non-absorbable prosthesis. In this case the patient has an eviscerated giant umbilical hernia, the operation performed was dissection of the hernia sac wall with resection of omentum. The abdominal wall was reinforced with a non-absorbable prosthesis. Others authors agreed with the use of non-absorbable prosthesis in cases with potentially contaminated surgery provided careful surgery technique is used so to minimize infection risks, combined with a suitable designed antibiotic regime