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http://dx.doi.org/10.4491/KSEE.2012.34.11.780

Using $CuSO_4$ for Preventing Algae Attachment on the Sedimentation Basin of Industrial Water Treatment Plant  

Son, Hee-Jong (Water Quality Institute, Water Authority)
Jung, Jong-Moon (Water Quality Institute, Water Authority)
Kim, Sang-Goo (Water Quality Institute, Water Authority)
Jang, Seong-Ho (Department of Environmental System Engineering, Pusan National University)
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Abstract
Existing states of attached algae in the sedimentation basin was observed during late april to early october, and the attached algae were visible 7 days after of cleaning the trough and the communities of algae became larger with increasing the operation periods. Attached algae community included bluegreen algae (Oscillatoria sp.), diatom (Synedra sp.,) and green algae (Mougeotia sp., Oedogonium sp.) and suspended diatom (Stephanodiscus sp.) as well. Diatom (Cymbella sp., Navicula sp., Synedra sp. and Stephanodiscus sp.), green algae(Mougeotia sp. and Cosmarium sp.) and blue-green algae (Anabaena sp.) were detected in the effluent of sedimentation basin. The chlorophyll-a (chl-a)concentrations of algae community on a square centimeter after 14 and 28 days were distinctively different depended on the copper sulphate treatment. The concentration of chl-a were $4{\mu}g/L/cm^2$ and $19{\mu}g/L/cm^2$ for the copper sulphate treated water and $59{\mu}g/L/cm^2$ and $147{\mu}g/L/cm^2$ for the untreated water. Diatom algae fragments were observed in red-brownish sediments on the bottom of industrial water distribution basin and degraded blue-green and green algae formated organic sediments combined with oxidized iron.
Keywords
Copper Sulphate; Attached Algae; Sedimentation Basin; Trough; Industrial Water;
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