Effect of Algal Biofilm and Operational Conditions on by Mohammed Babu

By Mohammed Babu

Discharge of nutrient wealthy wastewater factors eutrophication of floor water; for this reason wastewater remedy sooner than discharge is needed. Wastewater stabilization ponds are reasonably-priced know-how utilized by constructing international locations yet now not potent in nitrogen removing as a result of low nitrifier biomass within the water column. advent of floor region for attachment of nitrifiers has for this reason been proposed.

This thesis stories the functionality of pilot scale wastewater stabilization ponds equipped with baffles. The impact of baffles on nitrogen elimination lower than tropical and operational stipulations was once investigated. less than TKN/BOD ratio of 0.67, the baffled ponds played larger in nitrogen removing than the regulate pond. overall nitrogen mass balances confirmed that nitrification-denitrification, algal uptake and sedimentation have been precept nitrogen removing mechanisms in biofilm waste stabilization ponds

This learn indicates the potential for biofilms in enhancing nitrogen removing 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 adequate nitrogen content material to be used in agriculture.

Show description

Read or Download Effect of Algal Biofilm and Operational Conditions on Nitrogen Removal in Waste Stabilization Ponds: UNESCO-IHE PhD Thesis PDF

Similar waste management books

Recyclingtechnik: Fachbuch für Lehre und Praxis (German Edition)

Das Recycling von Altgeräten, Werkstoffen und anderen Materialien leistet einen wesentlichen Beitrag zur Ressourcenschonung, Schadstoffbeseitigung und Energieeinsparung sowie zur Reduzierung von Deponievolumen. Die einsetzbare Recyclingtechnik ist dabei eine grundlegende Voraussetzung für die wirtschaftliche Realisierung der Prozesse.

Solid Waste Management in the World's Cities: Water and Sanitation in the World's Cities 2010

In our swiftly urbanizing international society, good waste administration should be a key problem dealing with the entire world's towns. reliable Waste administration within the World's towns offers a clean viewpoint and new facts on one of many largest concerns in city improvement. utilizing the framework of built-in Sustainable Waste administration (ISWM), the record brings jointly extraordinary learn from 22 towns throughout six continents.

Analysis and Fate of Surfactants in the Aquatic Environment, Volume 40 (Comprehensive Analytical Chemistry)

An realizing of the destiny and behavior of natural chemical substances, resembling surfactants, within the setting is a prerequisite for the sustainable improvement of human overall healthiness and ecosystems. As surfactants are being produced in large quantities, you will need to have an in depth wisdom approximately their lifetime within the surroundings, their biodegradability in wastewater therapy crops and in normal waters, and their ecotoxicity.

Extra info for Effect of Algal Biofilm and Operational Conditions on Nitrogen Removal in Waste Stabilization Ponds: UNESCO-IHE PhD Thesis

Sample text

Algal species were identified and generally, there was a shift in the dominant group from period 1 to period 2 indicating a change in pond behavior. The zooplanktons were also diverse with young stages of copepod (Nauplius larvae) being dominant in all the four ponds. The distribution of algae and zooplankton in the four ponds showed that the 22 baffles had an effect on water quality which in turn affected the ecology of wastewater stabilization ponds. , 2002). These are the common treatment technologies used in most developing countries.

M. L. Bothwell & R. L. Lowe (Eds), Algal Ecology. , Rai, H. E. (1986). Phytoplankton control by grazing zooplankton: A study on the spring clear-water phase. Limnol. Ocean. 31 (3), 478490 39 Lazarova, V and Manem, J. (1995). Biofilm characterization and activity analysis in water and wastewater treatment. Wat. Res. T. (1980). Release and cycling of nutrients between planktonic and herbivores. Limn. Ocean. 25(4), 75-83 Manca, M. and Comoli, P. (2000). Biomass estimates of freshwater zooplankton from length-carbon regression equations.

Increase in oxygen suggests 34 more algae and under such conditions more zooplankton, which could have kept the biomass under control (algae and heterotrophs), so it seems there was a self controlling system. 7). This is consistent with the wet biofilm algal biomass which was higher in the deeper parts of the ponds during period 2. The improvement of oxygen conditions and lower BOD during period 2 is important for nitrogen removal in WSP. These conditions could favor growth of nitrifiers and this may have had a positive effect on ammonia oxidation.

Download PDF sample

Rated 4.99 of 5 – based on 39 votes