Paper Information

Journal:   JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY   SUMMER 2006 , Volume 8 , Number 2 (29); Page(s) 69 To 77.
 
Paper:  MINIMIZATION OF SLUDGE PRODUCED IN WASTEWATER TREATMENT PLANTS BY ACTIVATED SLUDGE METHODS
 
Author(s):  BOUDAGHPOUR S., MIR BAGHERI SEYED AHMAD, MIRZA FASHAMI O.
 
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Abstract: 

In the present world, in which all people force themselves to follow the environmental regulations, environmental assessment is necessary.

For all big projects, there are some challenges in the field of wastewater treatment, specially the activated sludge system. These challenges are about the production and the disposal of excess sludge produced in wastewater treatment plants.

Minimization of sludge production in wastewater treatment plant with the activated sludge system by the optimization of treatment parameters is the aim of the present study. For this purpose, a pilot laboratory was installed in the civil engineering department of K.N. Toosi University and the wastewater was supplied from Shahrak-e-Qods wastewater treatment plant.
The results obtained form sampling and laboratory tests were noticeable: the excess sludge production reduced by raising the oxygen concentration in the mixed liquid. Also, a decrease in the loading of the sludge entering the aeration tank resulted in a decrease in the produced sludge. Finally, a mathematical model for the simulation of activated sludge floes and the description of the effects of the above-mentioned parameters was developed.

 
Keyword(s): ACTIVATED SLUDGE, DISSOLVED OXYGEN, SLUDGE LOADING, BIOLOGICAL FLOC, MODELING, OPTIMIZATION
 
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