bbk 000000

UDC 628.336.41

Pokhil Yu. N., Bagaev Iurii, Ivanov N. A., Ivanov A. N.

Innovation Technology of Wastewater Sludge Dewatering at Sludge Beds

Summary

The technology of highly effective dewatering of wastewater sludge at sludge beds using the principally new flocculant «Сибфлок®» on the basis of polyethylene oxide and special facilities – wells for sludge water disposal is described. This technology has been tested at more than ten Vodokanals of Russia and Kazakhstan at facilities of 150–700 000 m3/day of wastewater capacity under the different climatic conditions. Sludge dewatering using the new technology makes it possible to obtain the sludge with moisture content of 70–75% and after predrying in a summer period – with moisture content of 40–60%. The technology is unified and can be easily included practically in any flow charts. Additional equipping of sludge beds needs minimal expenses. The sludge dewatered at sludge beds using the flocculant «Сибфлок^®» get the properties inherent to natural soils, lend itself well to composting and other types of processing.

Key words

dehydration , sludge , flocculant , sludge beds , filtration , moisture contents , artificial soil

bbk 000000

UDC 628.336.42

Zlatkovskii O. A.

EKOTON chamber-membrane filter presses

Summary

The wide range of chamber and membrane filter press application alongside with the design and control system improvements allow considering this type of equipment as a solution to numerous typical and special tasks of industrial slurry and wastewater filtration. At the same time the large variability of tasks necessitates designing a wide standard series of filter presses with different specifications. Individual filter press selection and manufacture suppose considering both filtration properties of particular slurry and the parameters of the operational flow scheme, mode of operation, site-specific conditions, production resource, characteristics of the related equipment, filter press place in the general layout of the filtration area.

Key words

wastewater , dehydration , capacity , filtration , moisture contents , suspension , filtering cake , chamber filter press , membrane filter press

DOI 10.35776/MNP.2020.05.08
UDC 628.144:628.179.34:528.88

Guseinli El’mir Imran ogly, Alieva A. D.

A new method for remote detection of water leaks in pipelines

Summary

The possibility of developing a new method for remote detection of water leaks in pipelines is considered. To develop the recommendations on the optimal implementation of altitude (aircraft or satellite) sounding in order to detect water leaks in pipelines, the main physical processes that affect the results of detecting water leaks by remote sensing are analyzed. The need for taking into account the following physical effects is shown: the dependence of the reflective spectrum of the soil on its moisture content; the dependence of the optical density of atmospheric aerosol (AOD) on the relative humidity (RH); inverse relationship between the air temperature and humidity; temperature dependence of the reflected signal of the soil due to soil drying. A new method for detecting leaks in pipelines is proposed that involves re-driving the water pipeline route and comparing the obtained spectrometric results taking into account the influence of the air temperature on the soil moisture and the degree of the atmospheric aerosol humidity.

Key words

water supply system , moisture contents , damping , leak , remote sensing , spectrum