scientific journal
  • ISSN 2072-8158
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  • Урал-Пресс: 012688

Journal «Water: chemistry and ecology» № 3 (45) за March 2012 г.</H3>

Journal «Water: chemistry and ecology»

№ 3 (45) за March 2012 г.

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p. 33-41 /

Tarasov V.V.
Kovalenko N.F.

Kinetics of water purification from fuel microdrops by heteroadagulation on carbon fabric

The peculiarities of kinetic of hydrodynamic heteroadagulation (HHA) of diesel oil micro drops with radius 0.4–6 mkm onto carbon fabric have been studied. The drops enlargement leads to acceleration of water purification from micron and submicron oil droplets. HHA process can be accelerated of water purification in ~ 100 times. However there are many peculiarities which complicate the process of purification. Very important property of HHA kinetics is time lag, form steps and oscillations. It has been proposed a verbal model of heteroadagulation kinetics with steps and oscillations.

Keywords: carbon fabric, chlorobensene, diesel fuel, heteroadagulation, histograms microphotos, kinetics, micro drops, purification degree, steps and oscillations, wavelets

p. 42-47 /

Misin V.M.
Mayorov E.V.

Heavy metal removal from urban runoff with the use of fibrous chemisorption materials

Pilot tests of designed and produced sorption filters on Moscow water treatment plant have been carried out. The efficiency of filters, filled with fibrous chemisorption material was proved to be higher for heavy metal removal.

Keywords: fibrous chemosorbents, heavy metals, purification of urban surface outflow

p. 48-53 /

Ivanov A.V.
Tafeeva E.A.
Davletova N.Kh.
Vavashkin K.V.

Drinking water impact on human health

Generalized data on the effect of drinking water quality on public health is represented. Lack or excess of chemicals in water acts as a specific and nonspecific factors that provoke development of certain diseases.

Keywords: chemical composition, drinking water, health, quality

p. 59-64 /

Poltaruha O.P.
Kovalchuk Yu.L.
Ilyin I.N.

Peculiarities of fouling organism distribution on ships and buoy stations in sea

The features of fouling organism distribution on ships and buoy stations have been discussed. It is shown that the fouling distribution on ships can be caused not only by light exposure and speed of water stream. Dependence of vertical distribution of fouling organisms on the mobile and fixed substrata from other factors was proved to take place. Thus in each specific case there can be specific laws of this distribution that means compulsion of the analysis of its features and conditions of environment.

Keywords: buoy stations, distribution of marine fouling, ships

p. 65-68 /

Artemov A.V.
Bobrov D.A.
Medvedev A.G.
Zhubrikov A.V.
Mikhaylov A.A.
Prikhodchenko P.V.

Promising method for assessing stability of solid forms of hydrogen peroxide

Hydrogen peroxide is a cheap, environmentally safe source of active oxygen. Due to this properties it has been widely used nowadays. We can also witness increasing volumes of production of its liquid and solid forms. In the modern production of solid peroxides there is a problem of control of their stability, since the methods used do not always adequately reproduce the real impact of the environment on the peroxidecontaining product. In this paper we propose an effective method for assessing the stability of solid peroxides, based on a study of the dependence between active oxygen in the sample and the time of its location in a stream of moist carbon dioxide. A half-life time of peroxide is proposed to be the stability measure of the investigated product, that is the time that sample spend in the current moist CO2, in which the active oxygen content is reduced by 2 times.

Keywords: active oxygen, hydrogen peroxide, sodium percarbonate, solid hydrogen peroxide, stability

p. 69-73 /

Dyogtev M.I.
Dudukalov N.V.

Extraction of zirconium ions from mixed solutions by alizarin and its aminomethylated derivatives

The extraction of trace amounts of zirconium1,2-dioksiantrahinon and its aminomethylated derivatives such as 3-N, N-dietilaminometil alizarin and 3-N, N-piperidyl aminomethyl alizarin from acetate-buffer and mixed solutions containing perchlorate, nitrate, chloride, sulfate, and trichloroacetate ions into butanol and its mixture with chloroform (9:1) has been studied. The dependence between zirconium ion extraction and pH of the aqueous phase, the amount of salting-out agent was shown. Spectrophotometric and conductometric methods were used to study the composition of extracted complexes.

Keywords: 1, 2-dioksiantrahinon, buffer solution, butanol, complex, complex structure, composition, extraction, perchloratetrichloroacetate ions, zirconium ion

p. 74-81 /

Reshetilov A.N.
Ponamoreva O.N.
Arlyapov V.A.
Alferov V.A.
Kamanin S.S.

Boc-biosensor based on yeast strains

Practical application of respiratory activity of yeast micro-organisms for BOC-sensors have been developed. A comparative analysis of BOC-sensor parameters based on individual strains such as Pichia angusta, Arxula adeninovorans and Debaryamyces hansenii has been carried out. It was revealed that the receptor elements based on microorganism associations are superior to that based on individual strains. This laboratory models were tried to change the BOC index of fermentive mass at different stages of wastewater fermentation.

Keywords: alcohol production, BOC (biochemical oxygen consumption), BOC-sensors, fermentation, microorganism association

p. 83-94 /

Mosin O.V.
Ignatov I.

Isotope effects of deuterium in bacterial and microalgae cells at growth on heavy water (D2O)

Isotope effects of deuterium in cells of various taxonomic groups of microorganisms realizing methylotrophical, chemo heterotrophical, photo organotrophical, and photosynthetic ways of assimilation of carbon substrates (methylotrophicbacteria, halobacteria, green microalgae) are investigated at growth on heavy water (D2О) media. The method of step by step adaptation technique of cells to heavy water is developed, consisting in plating of cells on 2 % agarose nutrient media containing increasing gradient of concentration of heavy water (from 0; 24,5; 49,0; 73,5 up to 98 % D2O) and the subsequent selection of stable to D2O cells. Obtained from growth media with a low gradient of concentration of D2О, cells were further transferred on growth media with higher gradient of D2O concentration, up to 98 % D2О. As the result adapted to maximum concentration of D2O cells were obtained. They represent biological material of which instead of hydrogen contained deuterium. The effects observed at growth of cells was shown to possess a complex multifactorial character and are connected to changes of physiological parameters – magnitude of log-phase, time of cellular generation, output of biomass, a parity of synthesized amino acids, proteins, carbohydrates and lipids, and an evolutionary level of the organization of investigated object as well.

Keywords: adaptation, bacteria, deuterium, heavy water, microalgae

p. 95-99 /

Gorbunova M.O.
Abakumova Yu.V.

Semiquantitative determination of chlorides in water with chlorine gas extraction

A sensitive and selective method for semi-quantitative determination of chloride in water has been developed. It is based on the oxidation of hydrogen peroxide in sulfuric acid, gas extraction of the produced chlorine and its determination by scale of standards with the use of reactive indicator paper impregnated with solutions of tetramethylammonium iodide and starch. The range for concentrations is 50-1600 mg/dm3. A new method for binary testing of chlorides in natural waters has been suggested.

Keywords: chlorine, indicator paper, test method, water

p. 100-103 /

Holodnyakov G.A.
Argimbaev K.R.

Processing plant waste storage influence on surrounding area

Waste storages accumulate a lot of different components which cause significant changes of hydrochemical conditions on large areas. This leads to deterioration of redox processes in the storages area. It also leads to recovery processes due tothe deterioration of aeration. The high content of organic matter causes a change in physical state, structure, physical condition, permeability and rock strength.

Keywords: accumulator, hydrochemical mode, redox conditions, tailing pit

p. 105-109 /

Margaryan L.A.
Pirumyan G.P. Doctor of Engineering, Head of Ecological Chemistry Department, Faculty of Chemistry, Erevan State University, Armenia
Minasyan S.G.
Dertsyan T.G.

Hydrochemical evaluation of Azat pond ecological state and water assessment by index methods

Hydrochemical parameters of water quality for Azat reservoir within the period of 2006-2009 have been studied. The water quality has been estimated by index methods.

Keywords: hydrochemical index, the maximum permissible concentration, water quality indices

p. 3-9 /

Gaev A.Ya.
Pogosyan Yu. M.
Galyanina N.P.
Savilova E.B.

Ecological condition of natural waters in Orenburg Region

Chemical composition of natural waters in Orenburg region have been formed under influence of natural and technogenic factors. Hydro carbonate waters regularly change south waters on sulphate and chloride-hydro carbonate ones. The accumulation of super technophile elements has been determined under conditions of techno genes. Some technical solutions are suggested to make the ecological situation stable.

Keywords: ecological situation, monitoring, natural and technogenic factors

p. 10-20 /

Nikanorov A.M.
Bryzgalo V.A.
Kosmenko L.S.
Reshetnyak O.S.

Anthropogenic transformation of river ecosystems in Far East region

Assessment of possible anthropogenic transformation of river ecosystems of the Far East region taking into account regional characteristics of component of the aquatic environment and the structural organization of hydrobiocenosis has been carried out for the first time. The trends in development of communities of aquatic organisms with varying degrees of water pollution have been outlined. Eutrophying impact of anthropogenic influence on river ecosystems and process of ecological regress has been analyzed.

Keywords: ecological regress, ecosystems of the Far East rivers, hydrobiocenose, priority pollutants

p. 21-26 /

Vaganova E.S.
Davydova O.A.

Physico-chemical aspects of self-purification of small rivers on example of Ulyanovsk region

Self-purification assessment of small rivers in Ulyanovsk region was made taking into account anthropogenic sources, geological and physical-chemical factors. Migration capacity of heavy metals (Fe, Zn, Cu, Ni, Cr) from bottom sediments into water body has been investigated by distribution coefficient. Certain groups of the analyzed metals were determined in accordance with distribution coefficient, pH, temperature and carbonate hardness.

Keywords: aquatic ecosystem selfpurification, geological and physical-chemical factors, heavy metals, the influence of anthropogenic sources

p. 27-32 /

Velikanov N.L.
Naumov V.A.
Velikanova M.N.

Monitoring of state water currents of commercial fishing importance

Regulation of maximum permissible concentrations of harmful elements in aqueous objects of commercial fishing importance are described. The river Pregolya proceeding within one region was taken as example. Organization of supervision, assessment, forecast by water level, and harmful substances concentration have been described.

Keywords: fishery flowing water reservoir, harmful substances, water discharge