Continuous aeration-batch clarification wastewater treatment

Details Continuous aeration-batch clarification wastewater treatment Continuous aeration-batch clarification wastewater treatment

1989-09-25

1990-08-28

Hruskoci, Peter

Liquid purification or separation

Processes

Treatment by living organism

210626, 210631, C02F 308, C02F 320

Patent

active

049523163

ABSTRACT:
A single-stage continuous aeration-batch clarification process for purifying wastewater containing pollutants includes the steps of continuously aerating the wastewater in the presence of biologically active solids and powdered absorbent in an aeration zone. A portion of the mixture of wastewater, biologically active solids and powdered absorbent is transferred to a settling zone where a settled solids phase and a clarified liquid phase are formed. During the settling step additional wastewater flows into the aeration zone. The clarified liquid phase is discharged from the settling zone while the settled solids phase may be returned to the aeration zone or sent to disposal.
The process may be carried out with a single aeration basin and settling basin or with a plurality of aeration basins using a single settling basin.

REFERENCES:
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patent: 3522881 (1970-08-01), Nicol
patent: 3524547 (1970-08-01), Nicol
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patent: 3746638 (1973-07-01), Gensman et al.
patent: 3904518 (1975-09-01), Hutton et al.
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patent: 4623464 (1986-11-01), Ying et al.
patent: 4810386 (1989-03-01), Coper et al.
patent: 4816158 (1989-03-01), Shimurn et al.
McShane et al., "Biophysical Treatment of Landfill Leachate Containing Organic Compounds" Proceedings of Industrial Waste Conference, 1986, (Pub. 1987) 41st, 167-197.

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