Water and water purification technologies

Scientific and technical news

METHOD OF CALCULATION OF SELF-CLEANING HYDRODYNAMIC FILTER OF TYPE “CYLINDER IN A CYLINDER”

V. Cheban

Donbass State Technical University, Alchevsk, Ukraine

e-mail: edvik2010@yandex.ua

The method of calculation of self-cleaning hydrodynamic filter of type «cylinder in a cylinder» which is based on long-term experience of designing of the working in domestic and foreign industry of hydrodynamic filter of liquids from firm pollution in a stream is presented.

Key words: hydrodynamic filter, «cylinder in a cylinder», process  water, firm pollution.

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13.09.2011 at 3:10 pm

MAGNETICALLY-FILTRATION PROPERTIES OF COMPOSITION GRANULAR NOZZLES OF MAGNETIC FILTERS

V. Garashchenko1, I. Astrelin2, O. Garashchenko1

1 – National University of Water Management and Nature Resources Use, Rivne, Ukraine

e-mail: vigarashchenko@yandex.ru

2 – National Technical University of Ukraine ”Kyiv Polytechnic Institute”

e-mail: i.m.astrelin@xtf.kpi.ua

Magnetically-filtration properties of composition granular nozzles of magnetic filters were investigated. It was shown that the size of middle induction in the volume of nozzle depends on correlation of the masses of granules of ferromagnetic and ferrimagnetic. The size of remaining magnetizing of composition nozzle in 2-3 times is less from the known ball-shaped nozzle. The influence of tensity of the external magnetic field on the size of coefficient of besieging was shown.

Key words: ferromagnetic nozzle, magnetic besieging, filtration.

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13.09.2011 at 3:07 pm

RADIOACTIVE POLLUTION OF THE GROUNDWATER IN ZHITOMIR REGION

I. Zakharkevich1, A. Zapolskyi2

1 – National University of Life and Environment Sciences of Ukraine, Kiev, Ukraine

2 – National University of Food Technologies, Kiev, Ukraine

e-mail: innashum27@gmail.com

Radioactive contamination takes a special place in general pollution of environment. Large territory of Ukraine was polluted with radioactive contaminants after terrible accident on Chernobyl NPP. In this article the results of research of groundwater radiation in Zhitomir region are given. In addition, problems related to this contamination are noted.

Keywords: Chernobyl catastrophe, radioactive contamination, groundwater.

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13.09.2011 at 3:03 pm

CALCULATION OF AVERAGE OF CHEMICALS IN DRINKING WATER AND WATER BODIES

S. Kapranov1, L. Podlipenskaya2

1 – SE «Alchevsk Municipal Sanitary and Epidemiological Department of Lugansk region»,

2 – Donbas State Technical University (DonSTU), Alchevsk, Ukraine

The methodology and the formula have been developed for the calculation of average concentrations of chemicals and their compounds in drinking water, water bodies, as well as other media in the presence of values below the sensitivity of the method (BSM). The basis of this approach is accounting frequency of laboratory results that are defined as BSM among total obtained set of data. The mathematical justification of the adequacy of the above mentioned method and formula was performed.

The proposed calculation method can be used to calculate the total actual load of chemical elements (including metals) and compounds on the human body that is necessary to develop and implement measures to protect the living environment and public health.

Keywords: water and other environments, method of calculating the average concentrations of chemicals, the human body.

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13.09.2011 at 3:00 pm

REAGENT WATER SOFTENING WITH USE OF ALUMINUM-CONTAINING COAGULANTS

T. Shabliy, O. Goltvianytska, V. Kamaev, M. Gomelya

National Technical University of Ukraine “KPI”, Kiev, Ukraine

e-mail: tania1@voliacable.com

The results of determine the effectiveness of aluminum-containing coagulants for water softening was presented. It is shown that the use of lime, soda and alkali the efficiency of softening is low. With using basic reagents with aluminum-containing coagulants degree of softening increases 2 ÷ 8 times at low values of residual alkalinity. Efficiency of the process depends on the consumption and the ratio of reagents.

Key words: reagent water softening, degree of softening, aluminum-containing coagulants, lime.

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13.09.2011 at 2:56 pm

AERATION METHODS OF DEFERRIZATION OF WATER

V. Orlov, S. Martynov

National university of water management and nature resources use, Rivne, Ukraine

e-mail: Orlov_Valeriy@list.ru

The question of influence of iron on the organism of man, form of his existence, in water, methods of delete is considered in the article. The features of by volume and contact deferrization of underwaters are marked. Experimental information of efficiency of work of aeration devices is resulted.

Keywords: iron, deferrization, airing, oxidization, filtration.

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13.09.2011 at 2:54 pm

HYBRID WATER-TREATMENT PLANTS APPLICATION AT CIRCULATING COOLING SYSTEMS BLOW-WATER PREPARING

V.A. Kishnevskiy, E.V. Kishnevskiy, O.M.Malinovskiy, I.D.Shulyak

Odessa national polytechnic university of «ONPU», Odessa

Email: twf61@yandex.ru

Probable hybrid schemes of water-treatment including reverse osmosis system (ROS) for cleaning heat-transmitter in energy are considered in the article. Internally staged design (ISD) principle (construction into the stage) application possibility is considered in the hybrid scheme of water treatment. The comparative analysis of the circulating cooling systems (CCS) blow-water treatment in hybrid schemes with complete utilization of exhaust cation filters regeneration solutions and ROS concentrate is conducted.

Keywords: filtrate, concentrate, permeate, salt rejection, additional water, inhibition, circulation water

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13.09.2011 at 2:51 pm

CALCULATIONS OF WATER-CHEMICAL VODES FOR CIRCULATING COOLING SYSTEMS WITH THE WATER COOLING TOWERS

E. Kishnevskyi, V. Kishnevskyi, V. Chichenin

National polytechnic university of Odessa, Ukraine

e-mail: twf61@yandex.ru

Prognostication method of circulating cooling systems with the cooling towers salt composition is expounded. Presence of error (7% and more), when using existent calculation and prognostication methods, is shown.

Keywords: cooling, cooling tower, water-chemical mode, circulating systems of cooling.

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13.09.2011 at 2:43 pm

CLEANING OF MINE WATERS FROM URANIUM WITH THE HELP OF CATIONIC FLOCCULANTS

U. Omelchuk 1, E. Rudkovskaya 1, N. Gomelya2,

1 – Sevastopol national university of nuclear energy and industry

2 – National technical university of Ukraine “KPI”, Kiev, Ukraine

e-mail: ruda_lena@mail.ru

In work the estimation of the efficiency of water purification from uranium cationic flocculants and coagulants such as RIKS-A0, Polvak-68, aluminium sulphate, ferrous sulphate (II). The processes of uranium-containing cleaning of mine waters depending on the type and dose of flocculants and coagulant, the effect of the Ph of the medium on efficiency of purification of water from uranium, developed terms of achieving full of water purification from impurities of uranium.

Key words: cationic flocculants, coagulants, Ph, containing mine water.

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13.09.2011 at 2:40 pm