bbk 000000
UDC 628.16.004.69
Valuyskikh I. V., Mamaev V. V., Zhagin S. V., Boldyrev Viacheslav Viktorovich, Smirnov V. P.
Introduction of Up-to-Date Technologies of Potable Water Treatment
Summary
The modern conception of water treatment has been realized at the pumping-filtration station of 250 ths m3/day output supplying potable water to the left-bank part of the city of Novosibirsk. The scheme of water treatment includes preliminary water ammonization, the supply of coagulant (aluminum oxychloride) and flocculant, preliminary chlorination, mixing in a mixer of instantaneous action, preliminary flocculation, clarification in horizontal settling tanks, filtration at high-rate filters, secondary chlorination, UV-disinfection. The use of several technologies and technical decisions in the scheme of water treatment aimed at the ensuring of epidemiological safety and high quality of water makes this scheme exclusively reliable and universal.
Key words
chloramines , clarification , filtration , ultra-violet disinfecting , flocculant , flocculator , mixer , ammonization
|
bbk 000000
UDC 628.162/.163
Pavlov A. A., Dziminskas Ch. A., Kostyuchenko S. V., Zaytseva S. G.
Modern Technologies of Potable Water Preparation at the Sludinskaya Waterworks of Nizhny Novgorod
Summary
It is told about introduction, for the first time in Russia, of modern technologies of preparation of potable water at the Sludinskaya waterworks of Nizhny Novgorod: chlorammonization, ozonization, optimal system of coagulation, UV-disinfection that has allowed to optimize operational costs, to minimize negative by-effects and to provide high quality of potable water.
Key words:
potable water , water supply system , chlorination , ozonization , flocculants , disinfection , ultraviolet , chloramines
|
UDC 628.166:661.43
DOI 10.35776/VST.2024.08.01
Sokolov Leonid, Silinskii Viktor
Chemical and disinfectant properties of a chlorine-containing chemical from underground mineralized water
Summary
The effect of a chlorine-containing chemical prepared by electrolysis from underground mineralized water on the chemical and bacteriological parameters of wastewater was studied. To conduct an experiment on the disinfection of wastewater samples, a chlorine-containing chemical was prepared by preliminary ultrasound exposure on mineralized groundwater (with a chloride content of 20 g/l) and subsequent electrolysis of this water in an experimental unit with titanium electrodes. The high disinfecting effect of the chemical at the final stage of wastewater treatment has been established. The weak disinfecting properties of chloramines in comparison with hypochlorous acid and sodium hypochlorite have been confirmed.
Key words
chloramines , wastewater , coliforms , underground mineralized water , electrolytic sodium hypochlorite , biological oxygen demand , chemical oxygen demand
|
|
