Predicting breakthrough of vanadium in fixed-bed absorbent columns with complex groundwater chemistries: A multi-component granular ferric hydroxide-vanadate-arsenate-phosphate-silicic acid system.

Granular ferric hydroxide (GFH) is often used for fixed bed adsorbent (FBA) columns in groundwater purification units around the world to remove arsenate contaminations. Groundwater can contain also other toxic (e.g.

[SURGICAL TREATMENT OF THE FACE CAPILLARY MALFORMATION].

Results of surgical treatment of 37 patients for the head and neck capillary malformations were analyzed. Optimal surgical tactics, depending on the malformation form and localization, was proposed. Restitution of the tissues defect after excision of malformation, using the flaps transposition, have permitted to achieve good esthetic results.

[Combined treatment of arteriovenous malformations of the head and neck].

An arteriovenous malformation (AVM) is a vascular developmental abnormality conditioned by impaired embryonic morphogenesis and characterized by the development of an abnormal connection between arteries and veins. More than 50% of the total number of patients suffering from this pathology are those having the pathological foci localizing in the area of the head and neck. At present, a combined method is both a generally accepted and the most radical one used for treatment for AVM.

[Results of surgical treatment of post-traumatic deformation of three-phalangeal fingers].

Results of surgical treatment of 168 patients with consequences o injury of long fingers were analyzed. After a trauma and emergency surgery in 139 patients had deformation of 200 fingers. Flexion contracture in proximal interphalangeal joint, bone deformation of phalanxes, and also insufficiency of a tendon sutures that resulted need of carrying out corrective operations on 126 (63%) fingers.