Perspectivity of Application of Carbon Fibrous Sorbents for Water Treatment for Technogenic Pollutions

Summary

The main characteristics and properties of carbon fibrous sorbents for their application in sorption treatment of surface water for oil products and phenols are studied. It is established that the activated fibrous sorbent has considerably better kinetics of sorption than traditional granulated carbons. It is also established that the sorption capacity and coefficient of protective action of a layer of carbon fibrous sorbents by 6 times higher by phenol and efficiency of treatment by 1,5 times higher comparing with granulated activated carbons. The high efficiency and perspectivity of the use of carbon fibrous sorbents in combination with ozonization for removal of organic pollutants from surface water and wastewater are revealed. The technological decisions making it possible to reduce the size of equipment by 20–100 times are found. At the same time the sorption capacity by special-purpose biotoxicants increases by 1,5–3 times comparing with traditional materials at considerable reduction of costs for construction of large objects.

Key words

potable water , oil products , surface water treatment , phenols , carbon fibrous sorbent , granulated carbons , ozonsorption

Improving the water treatment technology at the West water treatment plant

Summary

In January 2011 newly built ozonation and activated carbon filtration facilities with a capacity of 250,000 m³/day were put into operation at the West water treatment plant in Moscow. The facilities are fully automatic. Monitoring and control of the treatment process is carried out from the central control room. The technology of ozonation in combination with activated carbon filtration ensures high efficiency of organics removal (color, permanganate oxidability, total organic carbon), deodorization, and improvement of the drinking water taste, allows minimizing the formation of chlororganics (chloroform). The amount of water treated with new technology was 490,000 m³/day or 43% of the total supply to the city.

Key words

settling , filtration , water treatment , ozonsorption , mechanical mixing chamber , flocculation chamber