Valorization of the poultry litter through wet torrefaction and different activation treatments.

The increase in volume in bio-waste is inseparable from the production of biomass derived commodities. To reduce the use of conventional resources, the valorization of waste streams is gaining importance, and the valorisation of poultry litter fits perfectly into such scheme. This study shows a possible valorization of wet torrefied (300 °C) poultry litter (WTPL) through activation and its further use as a fertilizer, and as a wastewater micro-pollutant absorbent.

[Postoperative infectious-inflammatory complications of endoscopic surgery for urolithiasis].

Retrospective analysis of 1027 percutaneous radioendoscopic surgeries for upper urinary tract stones was performed. Postoperative acute pyelonephritis was the most common complication (11.2%), the frequency of which was significantly dependent on the presence of source of infection in the urinary tract, and the frequency of intra- and postoperative complications.

[Role of hormonal disturbances in sterility development for patients with benign formations of ovaries].

The article presents hormonal analysis of hypothalamus-hypophysis-ovaries system of 14 patients with sterility as well as of other 15 patients without sterility suffering from benign tumors or tumorous formations. The control group included 6 healthy women. The concentration of hormones in blood serum (FSH-follicle stimulating hormone, LH-lutein hormone, Prolactinum, Testosteronum, Oestradiolum, Progesterone) has been tested in dynamics of a menstrual cycle.

The effect of Al-doping on ZnO nanoparticles applied as catalyst support.

A pure ZnO sample and a sample containing 3 mol% Al were prepared by (co)-precipitation as model materials for the oxidic support phase in Cu/ZnO/Al(2)O(3) methanol synthesis catalysts. The samples were characterized with respect to their crystal, defect and micro-structure using various methods (XRD, TEM, XPS, UV-vis spectroscopy, EPR, NMR). It was found that a significant fraction of the Al is incorporated into the ZnO lattice and enhances the defect chemistry of the material.

Evidence for C-C bond cleavage by H2O2 in a mesoporous CMK-5 type carbon at room temperature.

We reported an evidence for C-C bond cleavage by milder oxidizing agent H2O2 in a mesoporous CMK-5 type carbon at room temperature.

[Sanitary assessment of iodine levels in the environment and their impact on children's health].

The Irkutsk province and the Republic of Buryatia which are a part of the Baikal Region (Siberia) were studied for environmental iodine balance. The water and local foodstuffs were found to show low iodine levels (they being 0.2 to 6.

[Substantiation of maximum permissible concentration of nutrient yeasts obtained during utilization of waste products in cellulose-paper industry].

The contributors used the sensibilization threshold to establish MACs for the dust of the fodder yeast produced as a result of pulp and paper waste products' recycling. The product belongs to the group of substances with low toxicity. It does not produce local irritation and exhibits sensibilization properties in case of both epi- and intracutaneous introduction.