are the following genera of the bacteria that predominates in the stabilization pond. Oxidation Ponds are also known as stabilization ponds or lagoons. This is mediated, primarily, by a mixed population of heterotrophic bacteria that utilize the organic constituent for energy and growth. Start studying Mastering Microbiology questions ch. The ponds then It includes physical, chemical, and biological processes to remove these contaminants and produce environmentally safer treated wastewater (or treated effluent ). • In 1975, the District constructed the Soscol Physical/Chemical Plant, which was jointly owned by the District and ACCWD, to treat oxidation pond effluent. Sewage treatment in an oxidation pond is accomplished primarily by : bacterial oxidation only alga-bacterial symbiosis algal photosynthesis only chemical oxidation only. The treatment process is a natural one involving the combined use of bacteria and algae. Bacteria already present in sewage acts to break down organic matter using oxygen from the surface of the pond. Waste stabilization ponds (WSPs or stabilization ponds or waste stabilization lagoons) are ponds designed and built for wastewater treatment to reduce the organic content and remove pathogens from wastewater.They are man-made depressions confined by earthen structures. In addition, ponds are simple plants to operate and maintain. Chapter 1 Wastewater Treatment Plant Master Plan 1-4 Use of contents on this sheet is subject to the limitations specified at the end of this document. Waste stabilization ponds consist of man-made basins comprising a single or several series of anaerobic, facultative or maturation ponds. The process of … Oxidation ditches are typically complete mix systems, but they can be modified to approach plug flow conditions. Stabilization ponds (or sewage treatment ponds) can include any of the following: Oxidation ponds, which are aerobic bodies of water usually 1–2 metres (3 ft 3 in–6 ft 7 in) in depth that receive effluent from sedimentation tanks or other forms of primary treatment. Wastewater treatment - Wastewater treatment - Oxidation pond: Oxidation ponds, also called lagoons or stabilization ponds, are large, shallow ponds designed to treat wastewater through the interaction of sunlight, bacteria, and algae. Oxidation ponds need to … [11] The presence or absence of oxygen varies with the three different types of ponds, used in sequence. Learn vocabulary, terms, and more with flashcards, games, and other study tools. In this respect sewage stabilization ponds and high-rate sewage stabilization ponds are well known for being generally more effective than conventional sewage treatment systems (Parhad and Rao, 1976; Shelef et al., 1977). > The oxidation ditch (OD) is a sort of equipment used for a long-term aeration. Mihelcic Fall '12 Learn with flashcards, games, and more — for free. Oxidation Pond and Aerated Lagoon are popular sewage treatment method because of their low construction and operation cost. Algae grow using energy from the sun and carbon dioxide and inorganic compounds released by bacteria in water. Oxidation ditches: Dissolved oxygen may or may not be present in the influent, depend ing upon the age of the sewage as it enters the plant and upon the type of preliminary treatment employed. The treatment of sewage is one of the important measures, which aims in the removal of BOD, phosphorous, nitrogen, solids and bacteria. In this stage, the effluent from primary treatment usually undergoes biological treatment in a trickling filter bed , an aeration tank , or a sewage lagoon (see Section 22.3). The natural processes of 27. Secondary treatment of sewage. As the clarified sewage enters the oxidation pond, it is teeming with bac teria, most of which prefer aerobic con ditions.