Водоснабжение и санитарная техника. Номер 7/2010

Number 7 / 2010

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№7|2010

ENVIRONMENTAL PROTECTION

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UDC 504.06:628.5

Ponomareva L. S.

Economic Mechanism of Water Protection from Pollution (Part 3). For What Penalize with Rouble?

Summary

See part 1, 2:  № 4, 2010,  с. 3;   № 6, 2010, с. 8

Some features of the application of documents concerning the payment for water pollution and harm caused by pollution and connected with setting and determination of a payment base according to substances and pollution indexes are considered. Imperfections of normative-methodic documents which make it impossible to use them observing the principles of justice and validity are considered.

 

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№7|2010

ENVIRONMENTAL PROTECTION

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UDC 628.52

Steglenko A. V.

Control over Reeking Emissions from Sewerage Facilities

Summary

The Yatagan plant used for treatment of air for gases generated at sewerage treatment facilities is described. This equipment has been developed by the Ecopromika Co. in cooperation with scientists of the M. V. Lomonosov Moscow State University and the D. I. Mendeleev Russian University of Chemistry and Technology.

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№7|2010

PROBLEMS, PERSPECTIVES

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UDC 628.22:532.542

Chupin V. R., Melekhov E. S., Chupin R. V.

Pressure Movement of Flows in Gravity Manifolds

Summary

A new approach to the design of water disposal systems based on their simulation with hydraulic chains with unrecorded withdrawals and inflows of runoffs is offered. It makes it possible, on one hand, to determine the presence of counterflows in the network, possible effusions of flows on the ground surface, volumes of runoffs running out, carrying capacity of a water disposal system and, on the other hand, to simulate various conditions of flow transportation with due regard for possible cloggings, encrustation of pipes and other violations which can occur during the operation.

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№7|2010

PROBLEMS, PERSPECTIVES

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UDC 628.162:62-278

Pervov A. G., Efremov R. V.

The Use of Nanofiltration Membrane OPMN-K for Production of Potable Water and Calculation of Operation Characteristics

Summary

Recommendation on the use of nanofiltration membranes OPMN-K manufactured by the Vladipor OJSC for natural water treatment and production of potable water of high quality are presented. It is shown that at the high efficiency of removal of iron, hardness, fluorine and ammonium ions from water the OPMN membranes are exposed considerably less to the danger of generation of calcium carbonate cake on them than the low pressure reverse osmosis membranes. Depending on quality of influent water and types of membranes these recommendations make it possible to determine the reagent consumptions for operation of plants. Calculations presented show that the use of OPMN-K membranes instead of reverse osmosis membranes ESPA makes it possible to reduce significantly expenditures for operation of the ground water treatment unit.

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№7|2010

PROBLEMS, PERSPECTIVES

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UDC 628.33.004.6

Serebryakov D. V., Tuomikoski P.

Reconstruction of Typical Radial Settling Tanks with the Use of a Scraper System Finnchain

Summary

Difficulties of the operation of radial primary and secondary settling tanks with typical equipment for sludge removal (sludge disposal trucks IBR and sludge scrapers IPR) are stated. The scraper system Finnchain (Finland) devoids these shortcomings. A principle of operation of this equipment is described; basic operation data and its distinctions from analogues are presented.

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№7|2010

PROBLEMS, PERSPECTIVES

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UDC 628.16.081

IVKIN P. A., LATISHEV N. S.

Improvement of Treatment Technique of High Colour and Low Turbidity Water

Summary

Humic substances are governing natural pollutants of high color and middle color river water. NII VODGEO has conducted the studies of effects of non-organic and organic coagulants in combination with high molecular flocculants. In the course of studies the efficiency of water treatment with aluminium oxychloride and Polysept has been compared. To improve efficiency of treatment flocculants Praestol have been used. Molecular-mass distribution of humic acids in influent water and water treated with reagents has been investigated. Results of the experiments with natural water have been confirmed with the use of model solutions prepared on the basis of sodium humate and also humic substances extracted from soil, turf and river water.

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№7|2010

PROBLEMS, PERSPECTIVES

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UDC 543.39

Bogatyreva I. A., Artemova T. Z.

Accelerated Method of Control of Membrane Filters for Bacteriological Analysis of Water

Summary

An accelerated algorithm of control over membrane filters used for rating of water quality according to microbacteriological characteristics has been developed. A preliminary stage of rearing of model microorganisms is excluded from the accelerated method. The control is exercised over two strains of model microorganisms differing in size and shape of cells. The developed algorithm is also used for rating of quality of track membrane made of polyethylene terephthalate. In the process, the percentage of removal of model microorganisms with track membrane is over 80% and meets the requirements of the International standard ISO 7704-85.

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№7|2010

PROBLEMS, PERSPECTIVES

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UDC 628.336.57:628.162.52

Butko D. A., Lysov V. A.

Determination of Rheological Properties of Water Supply Sediments in Facilities Directly

Summary

Design of an instrument and a method of calculation for the determination of rhelogical properties of sediments directly in settling facilities are presented. Regularities of the change of sediment resistance to displacement depending on the depth of its position and distance from the beginning of a settling tank are revealed.

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№7|2010

PROBLEMS, PERSPECTIVES

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UDC 628.17.08:681.121

Lurie M. S., Lurie O. M.

Assessment of a Random Error of Vortex Flow Meters in the Course of Their Operation

Summary

Methods of the assessment of a random error of vortex flow meters and water meters in the course of their operation are considered. This methodology is based on the statistical treatment of measurements of instantaneous values of vortex formation of the flow meter placed in the working pipeline. The scheme of connection of the vortex flow meter implemented in the submerged variant reducing the cost considerably and making it possible to use these instruments for measurement of a flow rate in large diameter pipelines and open canals is presented.

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