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Chinese Journal of Applied Ecology ›› 1994, Vol. 5 ›› Issue (4): 432-434.

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Screening of bactericidal algicide in a circulting cooling system and their appplication

Zhang Jingyuan1, Sun Baosheng2, Zhan Jun2, Tong Shumin3   

  1. 1. Tianjin Normal University, Tianjin 300074;
    2. Institute of Environmetal Engineering, Tianjin University, Tianjin 300072;
    3. Chemical Plant, Nankai University, Tianjin 300071
  • Received:1994-01-24 Revised:1994-03-26 Online:1994-10-24 Published:1994-10-24

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Abstract: In this paper, five kinds of bactericidal algicide with different characteristics are studied and compared with each other by a microbiological method. The results show that when the dosage of OACL is between 1.0 to 10 mg·L-1, the best synergistic effect with the corrosion and scale inhibitor can be obtained. After dosing OACL for 8 hours, the bacteria reduction ratio is more than 90%.

Key words: Bactericidal algicide, Secondary effluent, Bacteria reduction ratio, OACL, landscape pattern, spatial evolution, Guizhou, basin, land use intensity