Treatment of Domestic sewage in lagoons
| Autor: | O. Malchow-Møller, E. Fjerdingstad, G. J. Bonde |
|---|---|
| Rok vydání: | 1955 |
| Předmět: |
Ecology
Gravel pit biology business.industry Sewage STREAMS Aquatic Science biology.organism_classification Toxicology Algae Period (geology) General Earth and Planetary Sciences Faecal bacteria Sewage treatment business Effluent Ecology Evolution Behavior and Systematics Water Science and Technology General Environmental Science |
| Zdroj: | Schweizerische Zeitschrift für Hydrologie. 17:98-122 |
| ISSN: | 1420-9055 0036-7842 |
| DOI: | 10.1007/bf02483643 |
| Popis: | At Fuglebjerg, County of Soroe, South Zeeland (about 1000 inhabitants) a sewage treatment plant, consisting of three lagoons in series, has been installed in an empty gravel pit. The plant has been in use since May 1952 and has produced a most satisfactory effluent. Two times a year, chemical, bacteriological, and biological examinations have been performed, besides occasional more restricted investigations. The bacteriological examinations have chiefly taken into consideration, the reduction in counts of faecal bacteria, of whichE. coli is diminished considerably,Str. faecalis, and especiallyCl. welchii much less. The special value of the two last mentioned organisms as indicators of the efficiency of purification and the condition in the receiving streams is stressed. As regards the change in microflora in the course of treatment, a variation takes place from polysaprobic micro-communities characterized bybacteria andflagellates via α-mesosaprobic zones (flagellates andblue-green algae) to β-mesosaprobic conditions dominated bydiatoms. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink