New PDF release: Effect of Algal Biofilm and Operational Conditions on

By Mohammed Babu

ISBN-10: 0415669464

ISBN-13: 9780415669467

ISBN-10: 1439870462

ISBN-13: 9781439870464

ISBN-10: 9085858496

ISBN-13: 9789085858492

Discharge of nutrient wealthy wastewater explanations eutrophication of floor water; for this reason wastewater remedy prior to discharge is needed. Wastewater stabilization ponds are low-priced expertise utilized by constructing nations yet now not powerful in nitrogen removing because of low nitrifier biomass within the water column. creation of floor zone for attachment of nitrifiers has hence been proposed.

This thesis studies the functionality of pilot scale wastewater stabilization ponds geared up with baffles. The influence of baffles on nitrogen elimination less than tropical and operational stipulations was once investigated. below TKN/BOD ratio of 0.67, the baffled ponds played larger in nitrogen elimination than the keep an eye on pond. overall nitrogen mass balances confirmed that nitrification-denitrification, algal uptake and sedimentation have been precept nitrogen elimination mechanisms in biofilm waste stabilization ponds

This examine exhibits the possibility of biofilms in enhancing nitrogen elimination in wastewater stabilization ponds. The BOD and TSS concentrations have been sufficiently low to allow for reuse in irrigation. If the target is reuse and optimization of assets, the effluents from the ponds had enough nitrogen content material to be used in agriculture.

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Extra info for Effect of Algal Biofilm and Operational Conditions on Nitrogen Removal in Waste Stabilization Ponds

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4%, 21%, 10% and 32% for ponds 1, 2, 3 and 4 respectively. The percentage weight of algal material would be accurately estimated by chlorophyll a measurement; this is recommended for future studies. The advantage of using the bio volume method for biomass estimation was that information on both biomass and algal types were obtained concurrently. 1). It was seen that the algal biomass in the deeper parts of the biofilm substantially increased; especially in pond 4. 2) which could have allowed more light penetration in the deeper parts of the ponds.

Zohary, T. (1999). Biovolume calculation for pelagic and benthic microalgae. , (2002). Diurnal cycles of variation of physical–chemical parameters in waste stabilization ponds. Ecol. L. J (1992). Variation in herbivore response to chemical defenses: zooplankton foraging on toxic Cyanobacteria. S. (1997). Major Pathways for Nitrogen Removal in Wastewater Stabilization Ponds. Water, Air and Soil pollution, 94, 125-136 Lamberti, G. A. (1996). The role of periphyton in benthic food webs. In Stevenson, R.

Tech. , Shabtai, Y. and Oron, G. (2000b). Improved fecal coliform decay in integrated duckweed and algal ponds. Wat. Sci. Tech. 42 (10-11); 363370 Veenstra, S. and Alaerts, G. (1996). Technology selection for pollution control. In: A. Balkema, H. Aalbers and E. , Tay, J. and Wilson, F. (1997). A sustainable municipal wastewater treatment process for tropical and subtropical regions in developing countries. Wat. Sci. Tech. , and Wang, B. (1996). Evaluation on a pilot-scale attached-growth pond system treating domestic wastewater.

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Effect of Algal Biofilm and Operational Conditions on Nitrogen Removal in Waste Stabilization Ponds by Mohammed Babu

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