Tag:activated carbon

№5|2016

WASTEWATER TREATMENT

bbk 000000

UDC 628.316.12

Rublevskaya O. N., PANKOVA G. A., Leonov L. V., Kolosov D. E.

Approbation of Glint artificial aluminosilicate sorbent for tertiary treatment of biologically treated domestic wastewater

Summary

The results of pilot tests of synthetic aluminosilicate sorbent under Glint trademark in comparison with AG-3 granulated activated carbon are presented. The study was carried out with effluent from the North Wastewater Treatment Plant of SUE «Vodokanal of St. Petersburg». The following parameters were determined in the effluent samples: рН, suspended solids concentration, phosphate as P, anionic surfactants, ions of iron, zinc, aluminium, nickel, copper and manganese. Glint sorbent is aluminosilicate granular material with effective surface and contains exchangeable ions of calcium and magnesium. Glint material proved itself in the treatment of industrial wastewater contaminated with heavy metal ions but not contaminated with organics and complexing compounds.

Key words

, , , , ,

 

№12|2015

WASTEWATER TREATMENT

bbk 000000

UDC 628.35

Stepanov S. V., Stepanov A. S., Gabidullina L. A., Dubov O. V.

Biological treatment of oil refinery wastewater  in a biosorption membrane reactor

Summary

The basic process and kinetic regularities of biomembrane and biosorption membrane treatment of fuel and lube refinery wastewater are presented. The enhancement of denitrification process is suggested by reducing the dissolved oxygen concentration in the circula­ting flow of activated sludge by vacuum treatment. Summarizing the results of operating a pilot vacuumizing unit the more efficient use of biosorption membrane technology compared to the biomembrane method is shown. Single dosing of 1 g of powdered activated carbon per 1 liter of mixed liquor provided for reducing the mean monthly concentration of pollutants in permeate: in COD – from 68 to 49 mg/l; in BODfull – from 6 to 3.5 mg/l; in oil products – from 0.65 to 0.21 mg/l. The kinetic constants of the processes of eliminating the basic pollutants in membrane and biosorption membrane reactors were determined. It was stated that the specific oxidation rate in biosorption membrane reactors exceeded the similar indicators of membrane bioreactors only for easily sorbed substances – oil products and organic pollutants evaluated in BODfull. Vacuum treatment of circulating activated sludge during 5 minutes at minus 90 kPa pressure in a membrane bioreactor provided for 2-fold reduction of the dissolved oxygen concentration, improvement of the sedimentation properties of activated sludge (compared to the flow scheme without vacuum treatment) and the dissolved oxygen concentration less than 0.5 mg/l in the anoxic zone of the membrane bioreactor.

Key words

, , , , , , , ,

 

№6|2016

ADVANCED EQUIPMENT

bbk 000000

UDC 628.168

Bobinkin V. V., Ershov A. G., Kasatochkin A. S., Larionov S. Iu., Panteleev A. A., Riabchikov B. E., Semin M. M., Shilov M. M.

Commercial plant for removing chloroorganic compounds  from underground water

Summary

The existing technology of removing chloroorganic compounds from underground water allowed designing a relatively simple and reliable flow scheme. Within the shortest possible time a commercial plant with a capacity of up to 250 m3/h (4000 m3/day) of water cleaned off volatile chloroorganic compounds at the «Zalineinyi» water intake in Podolsk city, Moscow Area, was designed. This allowed commissioning temporally abandoned water wells and improving the municipal water supply. At the first stage of reconstruction the process flow scheme of water treatment was upgraded with a system of enhanced aeration-air stripping of volatile chloroorganic compounds, a first lift pumping station, a mechanical filters block charged with granulated activated carbon. After purification the concentration of volatile chloroorganic compounds in water was lower then the regulatory requirements. The second reconstruction stage envisages commissioning a reverse osmosis plant to eliminate water hardness to the optimal level.

Key words

, , , , ,

 

№7|2013

POTABLE WATER SUPPLY

bbk 000000

UDC 628.161:661.183.2veist-tek-2013

Khotchenkov V. P, Strikhar Yu. V., Stolyarova E. A., Zaitchik B. Ts., Rouzhitsky A. O.

Comparing the terminology and methods of activated carbon analyses according to the standards – GOST (State Standard) and ASTM, TM, AWWA

Summary

The comparison of international and Russian methods of activated carbon analyses is presented. The comparison of the terms used was made on the basis of the standards – GOST, ASTM, AWWA, EN and standards adopted by certain activated carbon manufacturers. It is shown that the methods of activated carbon evaluation according to the international standards ensure more definite results, and provide for overall estimation of activated carbon application properties. The attention is draw to the fact that while considering similar parameters with the use of domestic and international standards there is certain difference between testing methods which makes the comparison of the results problematic.

Key words

, , ,

 

vstmag engfree 200x100 2

mvkniipr ru