Liquid purification or separation – Processes – Treatment by living organism
Patent
1981-02-27
1982-09-07
Castel, Benoit
Liquid purification or separation
Processes
Treatment by living organism
210605, 210612, 47 14, C02F 332
Patent
active
043482856
ABSTRACT:
Purification of liquid agricultural wastes, such as, in particular, liquid anure, by means of an algae/bacteria mixture culture and a subsequent rotifer culture in a separate stage. The pH-value of the algae/bacteria mixture culture is controlled, especially by the waste water charging thereof, in such a way that a multiplication of rotifers in this stage is inhibited or precluded. The algae/bacteria mixture culture preferably occurs in shallow open air ponds for a period of time which depends upon the temperature and can amount to three to six days at a mean temperature of approximately 18.degree. C. The hold time of the algae/bacteria suspension which is in the rotifer container and is adjusted to a pH of 6 to 8 can range from two to four days at a temperature of approximately 20.degree. C. A waste water treatment plant or system for the foregoing includes at least one algae/bacteria mixture culture reservoir and at least one rotifer reactor.
REFERENCES:
patent: 3955318 (1976-05-01), Hulls
patent: 4086161 (1978-04-01), Burton
patent: 4209388 (1980-06-01), De Fraites
patent: 4267038 (1981-05-01), Thompson
Groeneweg Joost
Schluter Manfred
Castel Benoit
Kernforschungsanlage Julich Gesellschaft mit beschrankter Haftun
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