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S. V. Khramenkov.
An Open Letter of the President of the Russian Association of Water Supply and Water Disposal to Members of RAWS&WD |
3 |
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A. G. Pervov.
A History and Perspectives of Membrane Techniques in Water Treatment
Main steps of Russian school of membrane water treatment techniques development are described. Characteristics of membrane techniques (electrodialysis, reverse osmosis, nanofiltration, ultrafiltration, electrodeionization), their advantages and disadvantages, as well as their perspectives for future development and applications are outlined.
Key words: membrane techniques, reverse osmosis, electrodialysis, electrodeionization, nanofiltration, ultrafiltration.
UDC 628.1.2:62-278 |
4 |
A. G. Pervov, A. P. Andrianov, D. V. Spitsov, L. V. Rudakova.
New Ultrafiltration and Nanofiltration Membrane Techniques and Facilities for City Buildings Water Supply and Heating
Main guidelines to improve tap water quality in modern buildings as well as to use it for technical purposes and heating are described. Techniques and facilities that remove suspended and colloidal matter, bacteria and halogenocarbons from tap water are shown. Presented experimental data and results of economical calculations demonstrate the advantages of nanofiltration over conventional clarifying-sorption filters. Also considerations to minimize membrane system concentrate flow below 10% of feed water flow are presented.
Key words: tap water, ultrafiltration, nanofiltration, clarifying-sorption filters, filtrate, concentrate.
UDC 628.16:62-278 |
12 |
A. G. Pervov, G. Y. Rudakova, R. V. Efremov.
Development of a Program for Technical Design of Reverse Osmosis and Nanofiltration Systems Using Aminate Chemicals
Main methods of sparingly soluble substances (such as calcium carbonate) scaling control on membrane surface that consist of antiscalant dosing and application of chemical cleanings are described. A computer program that provides membrane flow decrease prognosis, membrane facilities technical design as well as calculated amounts of required chemical is presented. Technological characteristics of a new product - dry inhibitor - are presented.
Key words: antiscalants, cleaning solutions, chemical cleanings, scaling rates, technical design.
UDC 628.16:62-278.001.2 |
21 |
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A. P. Andrianov, D. V. Spitsov, A. G. Pervov, E. B. Yurchevsky.
Membrane Techniques for Surface Water Purification
State of the art analytical survey of surface water membrane treatment techniques based on the modern understanding of fouling models, hydrodynamic conditions and concentration polarisation build-up in channels with different geometries are presented.
Key words: organic and colloidal fouling, membranes, filtration, ultrafiltration, coagulation.
UDC 628.16:62-278 |
29 |
A. G. Pervov, A. P. Andrianov, E. B. Yurchevsky, D. V. Spitsov, R. V. Efremov, L. V. Rudakova.
Container Mounted Water Treatment Plants for Water Supply of Small Communities
Main problems of small communities water supply using well and surface water intakes in Kazakstan, Uzbekistan, North and South of Russia are described. Membrane techniques due to simplicity, small size, reagent-free operation provide efficient solutions for various problems of drinking water supply. Main flow diagrams of membrane systems developed for iron removal, softening, colour removal, ammonia and fluoride rejection, as well as for surface and sea water purification, including boron and bromide reduction are presented.
Key words: containerized units, iron removal, ammonia removal, sea water desalination, boron and bromide reduction.
UDC 628.16:62-278 |
40 |
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A. G. Pervov, D. G. Smirnov, N. B. Motovilova.
Membrane Techniques Used for Wastewater Post-Treatment and Reclamation
Membrane techniques based on the use of reverse osmosis and ultrafiltration membranes are described that could be succesfully applied to treat domestic wastewater. For wastewater reuse and reclamation, application of reverse osmosis provides reduction of BOD, phosphate and ammonia without application of biological treatment. Schematic flow diagrams showing new membrane equipment in combination with bioreactors and biofilters are des cribed.
Key words: membrane techniques, treatment and aftertreatment of wastewater, ultrafiltration, nanofiltration, reverse osmosis.
UDC 628.31:62-278 |
48 |
S. V. Stepanov, A. K. Strelkov, A. S. Stepanov, V. N. Shvetsov, K. M. Morozova, V. A. Kalenyuk.
Biological and Bio-membrane Treatment of Petrochemical Industrial Wastewater
Results of the laboratory research to purify petrochemical industrial wastes using bio-membrane and biosorptionmembrane techniques are presented.
Key words: industrial and municipal waste water, advanced treatment, aerotank, membrane bioreactor, biosorption membrane reactor.
UDC 628.35:62-278:725.42:665.6 |
55 |
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A. G. Pervov, A. P. Andrianov, E. B. Yurchevsky.
Improvement of Membrane Module Configuration
Main disadvantages of commercial spiral wound modules that cause scaling and fouling are described. A new channel design is suggested that enables us to escape dead-area formation and accumulation of calcium carbonate scale and colloidal foulants on membrane surface. New module type characteristics (such as fouling rates, delta pressure increase rates) that demonstrate advantages and reliability of a new design approach are presented.
Key words: pressure channel, stagnant zones, spiral element, resistance increase, sludging rate.
UDC 628.16:62-278 |
62 |
A. G. Pervov.
The Future Belongs to the Young Generation (The First East-European Conference of Young Scientists and Specialists) |
71 |
S. E. Berezin.
Range of Pumps Becomes Wider |
73 |
| Abstracts of the Articles Published in the Issue № 7 |
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