bbk 000000
UDC 628.16
KINEBAS A. K., Feofanov Yu. A.
Modernization of the Zelenogorsk Water Supply Station is a Stage of Realization of the Regional Program Pure Water
Summary
The following works have been done within the limits of modernization of the Zelenogorsk water supply station (St. Petersburg): reloading of high-rate filters with installation of the new drainage system TRITON improvement of water aeration system (enrichment with oxygen in a pan aerator), and automation of technological process. The technique of water treatment for manganese at the second stage of the process with the use of catalytic oxidation in pressure filters containing the three-layered quartz sand, pyrolusite, and anthracite media has been introduced. The quality of water treated at the Zelenogorsk water supply station after its modernization meets the requirements of the Russian and European standards at all points.
Key words
cleansing , filtration , aeration , pressure filters , water-air flushing , ground water , oxidation , iron , manganese , anthracite , pyrolusite , quartz sand
|
bbk 000000
UDC 628.162.82:661.491.001.2
Gordeev M. B., Kolodyazhniy V. A.
Deferrization of Natural Water Using Ozonization in Presence of Hydrogen Peroxide
Summary
Results of studies and laboratory tests of the water deferrization technology using jointly ozone and hydrogen peroxide at the laboratory unit are presented; high efficiency of the technology considered is shown.
Key words:
ozonization , hydrogen peroxide , oxidation , catalytic action
|
bbk 000000
UDC 628.16.094.3-926.214
Solntsev V. V., Shafit A. Ya., Romashkin A. V., Shouvalov V. I., Tarkhanova I. Yu.
The use of ozonation equipment for natural water treatment at the Far North
Summary
The results of many years developing, commissioning and maintaining water treatment plants with ozonation used for ferrous iron and manganese oxidation, elimination of both natural organics and organics of anthropogenic origin, showed the reliability and efficiency of Ozonia OZAT® ozone generators. Beginning from 2007 a number of plants with the use of ozonation equipment for northern surface (lake) water treatment have been commissioned. When designing and commissioning the plants the results of technological studies carried out were taken into consideration. It was found that the two-stage treatment technology with preliminary chemical clarification of water with the use of ozonation as a stage that ensured high quality of water was the most efficient.
Key words
potable water , oxidation , iron , manganese , ozone generator , water treatment , rotation camps
|
bbk 000000
UDC 628.161.2:546.(711+72)
Zhurba M. G., Savelyev S. P., Ourousov D. Yu., Gabliya Yu. A., Diachuk Sergei, Lykov V. V., Parusov Denis
Improving the technology of deironing and demanganation of the underground waters in Ulyanovsk
Summary
An improved design of two-stage technology of deironing and demanganation of underground waters with the use of floating polystyrene foam media at the Ulyanovsk water treatment facilities was suggested and tested. At the first stage the processes of aeration-degassing, contact filtration and filtration rate regulation of the second stage filters are carried out. It was established that manganese removal from the underground water of Arkhangelsk water intake can be carried out only by additional dosing 0.6–0.8 mg/l of 4–5% potassium permanganate solution before the filters of the second stage. In doing so the time of chemical being in contact with the filter media of the second stage can be reduced from 20 to 4–5 minutes.
Key words
deferrization , ground water , oxidation , demanganization , catalyst , bioreactor filter , floating polystyrene foam media
|
|
