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UDC 504.06:628.5

Ponomareva L. S.

Economical Mechanism of Water Protection Against Pollution (part 1)

Summary

Values of payment norms for pollution in excess of the allowed maximum comparing with values of charges for discharge of pollutants together with wastewater and for emergency discharge of pollutants are considered. Features of changes of charges for the damage caused comparing with payment norms for excessive discharge and the ratio of their changes for pollutants of different levels of danger are noted. Calculations of water price in agreement with payment norms and charges according to methods of damage determination on the bases of a conventional value of the ratio required for dissolution up to safety concentration have been made. Characteristic features of the use of charges for evaluation of the damage in the event of excessive discharge of pollutants with wastewater and at emergency situations as well are noted.

Key words:

payment norms , charges , calculation of payment , determination of damage , principles of establishment of charges , evaluations of water price

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UDC 628.148.004.67

KOSYGIN A. B., Khanin V. N., GOSUDAREV K. I., FOMINA I. V.

Detection of Hidden Leaks Using the Monitoring System of Water Supply Network

Summary

The complex of works carried out by the Center of Technical Diagnosis Mosvodokanal is aimed at detection of hidden leaks of a water supply network using the monitoring system. The analysis of up-to-date methods of the leak detection is made, their prospects and advantages are shown.Key words: water supply network, hidden leak search, monitoring system.

Key words:

hidden leak search , monitoring system , water supply network

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UDC 628.121.8

PIRUMOV R. A., Filipovskaya N. V., Zaytsev A. P., ROMANOVA N. L., Simakhin V. M.

Metrological Provision of Measurements of Water Flow Rate and Water Volume at the State Unitary Enterprise Vodokanal Sankt-Peterburga

Summary

Reliable measurements of the water flow rate and volume at the SUE Vodokanal Sankt-Peterburga are achieved by realization of the complex of normative-legal and technical measures including the metrological provision of measurements.

Key words:

measurement , water flow rate and volume , metrological provision of measurements , flow meter-counter

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UDC 681.121

Kargapoltsev V. P., Mitskevich A. A.

Imbalances at Water Recording: Reasons for Emergence and Methods of Reduction

Summary

Reasons for emergence and methods of the reduction of imbalance at water recording are considered. Organizational and technique measures for enhancement of the efficiency of operation of a system of municipal water supply and water consumption recording are proposed.

Key words:

water meter , water consumption , imbalance of water recording , inspection of instruments

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UDC 696.117.62-192

Svintsov A. P., MUKARZEL S. A., SUCHENKO V. N., GLEBOV E. A.

Design Technique for Dimensioning a Pass Hole of the Flat Valve of a Faucet Head

Summary

A new design technique is presented for calculating the area and geometric parameters of a pass hole of the stop valve with a smoothly changing shape of cross-section. The proposed technique allows designing of flat valves for sanitary fittings of various purposes.

Key words:

water-discharge taps , stop valve , pass hole , flow rate , pressure

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UDC 628.162.1

BELEVCEV A. N., ZHAVORONKOVA V. I., POVOROV A. A., DUDKIN E. V.

Reagent-Free Deferrization Plants of the Hyxo Closed Company and Experience of Their Operation

Summary

There is a brief analysis of ground water deferrization techniques used for domestic and technical water supply. Reagent-free flow charts of artesian water deferrization with EUROWATER equipment realized at regional Vodokanals are presented.

Key words:

natural water , deferrization , aeration , pressure filters , water-air flushing , sludge dewatering

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UDC 628.35:661.5

Danilovich Dmitrii, KOZLOV M. N., Moyzhes O. V., Nikolaev Yu. A., KAZAKOVA E. A., GRACHEV V. A.

Anaerobic Oxidation of Ammonium for Removal of Nitrogen from High-Concentrated Wastewater

Summary

The first in Russia study of the technique of anaerobic oxidation of ammonium (ANAMMOX) applied for treatment of return flows from dewatering of digested sludge is described. The two-stage technique ANAMMOX with the use of two processes – partial nitrification and the process of anaerobic oxidation of ammonium itself – has been realized under laboratory conditions. Efficiency of nitrogen removal in a reactor was 90%, volumetric capacity of the reactor by nitrogen was 0,16 kg/m³ per day. Results obtained show that the process of autotroph removal of nitrogen is an attractive alternative technologically and economically to the traditional technique of nitri-denitrification.

Key words:

wastewater , nitrogen removal , ammonium , anaerobic oxidation , nitrification , denitrification , dewatering of fermented sludge

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IVANOV A. S.

Dizinfection of Wastewater with UV-irradiation

Summary

Применение бактерицидного ультрафиолетового излучения для обеззараживания сточных вод

Key words:

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UDC 628.25

GALKIN S. M., Kaniovsky A. A.

New Solutions for Collection, Treatment and Discharge of Storm Water

Summary

The flow charts of collection, treatment and discharge of storm water with the use of block-module designs Q-Bic of Wavin-Labko OY (Finland) are described. The systems Q-Bic can be used as collecting and regulating tanks and as a unit of treatment facilities for domestic wastewater also.

Key words:

storm and domestic wastewater , treatment system , collecting and regulating tank , block-module design