Kinetic Behaviour of the Activated Sludge Process Used for Treating Composite Chrome Tannery Wastewater
نویسندگان
چکیده
منابع مشابه
Kinetic Coefficients for the Biological Treatment of Tannery Wastewater Using Activated Sludge Process
Activated sludge process is a highly effective and commonly adapted method of aerobic biological treatment systems and is normally designed on the basis of simplified hydraulic related parameters. Designs of biological treatment systems based on hydraulic considerations are not adequate to ensure efficient operation. This is due to the wide variation in the composition of wastewater and the com...
متن کاملBiological Treatment of Tannery Wastewater Using Activated Sludge Process
A study was conducted to evaluate the feasibility of Activated Sludge Process (ASP) for the treatment of tannery wastewater and to develop a simple design criteria under local conditions. A bench scale model comprising of an aeration tank and final clarifier was used for this purpose. The model was operated continuously for 267 days. Settled tannery wastewater was used as influent to the aerati...
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The activated sludge has been acclimatized with chromium (VI) ions from 5 mg/L to 20 mg/L. It is observed that the chromium removal percentage, COD removal and mixed liquor suspended solid (MLSS) decrease with the increase in dilution rate. Maximum food to microorganisms ratio (F/M) is found to be 0.19. When initial metal ion concentration increases from 5 mg/L to 20 mg/L, the chromium removal ...
متن کاملImproved compaction of dried tannery wastewater sludge.
We quantitatively studied the advantages of improving the compaction of a powder waste by several techniques, including its pelletization. The goal is increasing the mass storage capacity in a given storage volume, and reducing the permeability of air and moisture, that may trigger exothermic spontaneous reactions in organic waste, particularly as powders. The study is based on dried sludges fr...
متن کاملEstimation of biological kinetic parameters from a continuous integrated ozonation-activated sludge system treating domestic wastewater.
The feasibility of treating municipal wastewater by a combined ozone-activated sludge continuous flow system was studied. Lab-scale experiments of both single activated sludge and combined ozone-activated sludge processes were carried out to determine the kinetic coefficients of the biological stage. The results obtained indicated a clear improvement in the kinetic parameters of the aerobic oxi...
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ژورنال
عنوان ژورنال: Polish Journal of Environmental Studies
سال: 2015
ISSN: 1230-1485
DOI: 10.15244/pjoes/59214