scientific journal
  • ISSN 2072-8158
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  • Rospechat: 48626
  • Russian Press: 44722

Journal «Water: chemistry and ecology» № 3 (21) за March 2010 г.</H3>

Journal «Water: chemistry and ecology»


№ 3 (21) за March 2010 г.

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Contents:

p. 2-5 /

Litvinov A.S.

Ecological conditions of Rybinskoe reservoir during extreme water years

Variation of main hydrological regime characteristics was investigated for years of different dryness. There was established relation between these parameters reservoir ecosystem and habitat factors of hydrobionts. The investigation of Rybinskoe reservoir was made to increase the effectiveness of water management.

Keywords: ecosystem, exchange waters, level of water, water balance


p. 6-9 /

Sinyakova M.A.
Volf I.V.

Reduce of natural water pollution by galvanic heavy metals

Reduce of galvanic heavy metal discharge in natural water was discussed. Different approaches to increase the effectiveness of ion-exchange method were suggested and approved.

Keywords: heavy metals, ion exchange, waste water purification


p. 14-20 /

Kolesnikov V.A.
Bondareva G.M.
Vorobeva O.I.
Kapustin Yu.I.
Yarovaya O.V.

Examination of colloid systems containing diesel oil and surfactant traces

Sustainability of diesel oil emulsion containing anionic and nonionic surfactants which are formed in sewages of different nature is examined using correlation spectroscopy and sedimentation methods. There is a dependence between surfactant nature and emulsion dispersion. The most sustainable diesel oil emulsions are formed in the presence of sodium dodecylbenzenesulfonate combined with Sintanol ALM-10 (average hydrodynamic radius – 0,224 micron) and sodium dodecylsulfate combined with Oxanol CS-100 (average hydrodynamic radius – 0,163 micron). Electroflotation technology taken with reagent treating methods is recommended to purify sewages, containing diesel oil traces, stabilized by surfactants.

Keywords: dispersion, emulsion, oil products, surfactants, wastewater


p. 21-25 /

Shubina D.M.
Yakimenko O.S.
Patsaeva S.V.
Izosimov A. A.
Terekhova V.A.
Yuzhakov V.I.
Fedoseeva E.V.

Spectral properties of humic water solutions

Humiс substances are natural high molecular weight polymers of irregular structure, which were formed in biosphere as a result of biomass utilization. Using of such substances in agriculture, industry and while restoring the damage to the soil, is very promising in the field of environmental protection. But because of the variety of raw material resources and methods of producing commercial humates have different properties. That’s why there is a challenge to find an analytical method for humic substances classification. Spectral-luminescent properties of humic water solutions produced in Russia, USA, Canada and China were investigated. It was shown that spectral properties of commercial humates obtained from peat and sapropel are closed to those of humic substances from natural water or soil. On the contrary humic substances from carbonized materials or organic waste have spectral properties (fluorescence maximum and quantum efficiency according to excited wave-length) different from natural humic substances have.

Keywords: absorbance, commercial humates, fluorescence, humic substances


p. 26-36 /

Adzhienko V.E.

Bottom sediments removing in water subjects: silting factors and economic issues

Bottom sediment formation as the result of pollutant discharge deteriorates ecological and sanitary state of water subject. Charges for negative impact do not compensate purification costs while using industrial methods of sludge deposit and mud drying. Technology of drying in geotextile containers – geotubes represents new engineering and economic opportunities for water subject purification and sapropel production.

Keywords: bottom sediments, geotube, sapropel production, sewage charge, sludge drying, water subject silting


p. 40-42 /

Reznikov V.A.

Oxygen-oxygen interaction in water

Hydrogen bond and equivalence of all hydrogen atoms, as well as H-bond collectivization and internuclear separation contradict covalent interaction of hydroxyl OH-groups. With reference to classical textbook by S.A. Shchukareva, author underlines that the difference in energy between excited oxygen and hydroxyl group is 153 MeV, that is the energy of one H-bond. Therefore OH-groups may be treated as excited oxygen state.

Keywords: covalent interaction, electronic subsystem, excited state, symbolic center