Succession in Zoo- and phytoplankton in a sewage stabilization pond

✍ Scribed by H. S. Patil; G. B. Dodakundi; S. S. Rodgi

• Publisher: Springer
• Year: 1975
• Tongue: English
• Weight: 476 KB
• Volume: 47
• Category: Article
• ISSN: 1573-5141
• DOI: 10.1007/bf00039058

✦ Synopsis

The investigations pertaining to zoo-and phytoplankton succession during prestabilization and stabilization of domestic waste water in a facultative pond operating at 1 .22 meters depth with an average BOD loading of 336 .3 kg per hectare per day and a retention period of 10 days revealed the following 1 . A photosynthetic sulphur bacterium Thiocystis violacea has been recorded during the second and third day along with a considerable population of ciliate protozoa and algae. 2 . Chlorophytes were followed by euglenoids in the ecological succession and the latter became predominant after the pond stabilized . 3 . Of the twelve protozoan species Halteria grandinella, Bursaria truncatella and Perispira ovum were associated with peaks of algae and vigorous photosynthesis in the stabilized pond water . 4 . There is a gradual inprovement in the quality of the waste water with respect to reduction in bacteria and biochemical oxygen demand and enhancement in changes in physico-chemical factors till a relatively stable community is evolved .