First Measurement of a Long-Lived π^{+}π^{-} Atom Lifetime.

The adapted DIRAC experiment at the CERN PS accelerator observed for the first time long-lived hydrogenlike π^{+}π^{-} atoms, produced by protons hitting a beryllium target. A part of these atoms crossed the gap of 96 mm between the target and a 2.1  μm thick platinum foil, in which most of them dissociated.

Observation of π^{-}K^{+} and π^{+}K^{-} Atoms.

The observation of hydrogenlike πK atoms, consisting of π^{-}K^{+} or π^{+}K^{-} mesons, is presented. The atoms are produced by 24  GeV/c protons from the CERN PS accelerator, interacting with platinum or nickel foil targets. The breakup (ionization) of πK atoms in the same targets yields characteristic πK pairs, called "atomic pairs," with small relative momenta Q in the pair center-of-mass system.

[The possible approaches to the theoretical validation of the use of cytostatics and corticosteroids in treating glomerulonephritis].

Cyclophosphamide (CP) and methylprednisolone (MP) were tried on rats with experimental nephrotoxic serum nephritis and mice with experimental acute serum nephritis. Pathological processes were analyzed simultaneously in vivo and in vitro. CP reduced the antibody impairment and stimulated glomerular infiltration by mononuclear leukocytes whose mediator spectrum was oriented to repair.

[Purification of waste water from the antibiotic-producing industry using synthetic sorbents].

It was shown possible to use Polysorb S-40/100, a synthetic sorbent, for after treatment of sewage from antibiotic production. Kinetic relationships between the sorption and sorbent regeneration are presented.

[UV-irradiation in the technology of purification of sewage waters from antibiotic production plants].

Methods used in purification of sewage from organic pollution with UV irradiation, oxidants (O2, O3, H2O2, NaClO-, KMnO4, ClO- and HOCl) and photosensitizers are discussed on the basis of the literature data analysis. Certain trends in promising studies on sewage treatment in manufacture of antibiotics were defined.

[Effect of carbohydrates on possible utilization of wastes from antibiotic-manufacturing plants in the construction industry].

Utilization of antibiotic manufacture waste containing a certain amount of carbohydrates in concrete preparation requires their control. It was shown that the content of not more than 0.5 per cent of carbohydrates in the waste had no unfavourable effect on the concrete hardening.

[Electroflotation packing of mycelial wastes].

Data on testing a pilot plant for electroflotative packing of mycelial wastes are presented. Both the mycelial wastes and their mixtures were used. Concentration of dry substances raged from 3.

[Assessment of the degree of electrochemical treatment of sewage using biotesting].

Studies were conducted on estimation of the toxicity levels in various oxygen-containing chlorine compounds formed during electrochemical treatment of sewage by using a culture isolated from activated sludge purifying antibiotic production waste. It was shown that the products formed during electrocatalytic treatment of solutions (concentration of NaCl 1.5-5 g/l, pH 2.

[Biodegradation of pollutants in the aerial discharges from antibiotic biosynthesis].

Possible biodegradation of air pollution from antibiotic biosynthesis in the form of water condensates was studied in a 1000 ml laboratory bioreactor with using active sludge. The biodegradation of such a pollution was shown possible. The process kinetics was described by the Michaelis-Menten equation.

[Intensive methods of sewage treatment].

The results of the study on intensive treatment of sewage are presented and the general approach to it is proposed. Formation of oxygen active forms in biological systems, their generation during physico-chemical treatment under definite conditions and interaction with organic substances provide higher purity levels in treatment of sewage.

[Utilization of modified waste from the antibiotic industry for the production of construction materials].

Possible utilization of treated streptomycin fermentation broth modified with waste hydrochloric acid solution followed by lime neutralization was studied. Such a complex additive to concrete increased its strength by 36-41 per cent. With saving cement by 7 per cent the concrete strength increased by 22-29 per cent as compared to the control samples.

[The treatment of wastes from antibiotic manufacture by using pyrolusite].

Data on laboratory studies with real liquid sewage from antibiotic manufacture are presented. Two schemes are discussed: treatment of the sewage in an electrolysis plant followed by its afterpurification either in a column with pyrolusite or during a joint process of electrochemical purification with catalyst location on the plant bottom under the electrodes. The afterpurification of electrochemically treated liquid sewage on waste pyrolusite can provide and additional effect i.

[Hydrobotanical after-purification of effluents from a medical drug plant in winter].

The parameters of additional treatment of biologically pure antibiotic production sewage in winter were studied on a pilot model of a 3.72 m3 biopond with higher aquatic plants (Phragmites communis). Sufficiently high efficiency of the process of possible provision of the required sewage quality were shown.

[Comparative evaluation of mathematical models of the process for the biological treatment of the wastes from antibiotic manufacture].

The main kinetic relationships of the process of biological oxidation of antibiotic production sewage were studied in laboratory models of mixer aerotanks. A relationship between the specific rates of BOD (biological oxygen demand) decreasing and BOD concentration in aerotanks was developed on the basis of the results relating to treatment of 8 types of the sewage within the ranges of the pure water BOD equal to 18-220 mg/l and the loads of 0.18-3.

[Sanitary microbiological aspects of the treatment of wastes from antibiotic manufacture in biological ponds].

Efficiency of decreasing sewage contamination was estimated under laboratory conditions by the Coli index in additional treatment of antibiotic production sewage in bioponds with higher aquatic plants. It was shown that the sewage decontamination in summer was intensive due to vital activity of complex biocenosis of the higher aquatic plants and algae and reached the required levels. This allowed to use much lower quantities of the reagents in chlorination of water for circulating water supply.

[Electrochemical treatment of the waste waters from the manufacture of endocrine preparations].

An approach to intensification of biological treatment of industrial sewage containing liquid wastes of endocrine drug production is described. The most contaminated effluent of rectification columns is isolated from the general plant discharge and subjected to local treatment. The advisability and level of the local treatment in electrochemical sewage treatment were studied under laboratory conditions.