12.30 Completely Mixed Aerated Lagoons . Anaerobic Ponds: Anaerobic ponds are heavily loaded open ponds usually 2 to 4cm deep as permanent ponds in municipal waste waste treatment or in industrial wastewater treatment. Odour problem can be reduced if properly taken into account during the design stage. "Evaluation of waste stabilization pond performance." Advantages Stabilization ponds are biochemical reactors for waste treat ment. Aerobically break down most remaining organic solids near the pond surface. What are the advantages and disadvantages of using WWSPs compared to conventional wastewater treatment processes? porated alongside facultative ponds (Martinez et al. Comuncate con Nosotros!! 2014). Facultative WWSPs: o The most common type of WWSP. 12.28 BOD Loadings of Facultative Ponds . 40-45%. KEYWORDS: design ponds, facultative stabilization ponds, mecha nistic model. a. they can only be operated in series. Detention Pond Problems: Advantages and Disadvantages Advantages Usually doesn't require as much space. [Briefly review the information on the slide.] d. 70-80%. List the advantages and disadvantages of facultative aerated lagoons. Facultative pond use natural and energy efficient processes to provide waswater treatment with low cost. Facultative lagoons have three major disadvantages: odors, variable effluent quality, and large land-area requirement. Facultative Pond Criteria: Package plant: Activated sludge plant: Extended aeration activated sludge even stronger wastes (say up to 1000 mg/l BOD 5) may be discharged directly into primary facultative ponds. Disadvantages Of Facultative Reinsurance: i. 7. The formalities involved in obtaining cover is much more expensive in comparison to treaty. purpose built wetland treatment system, to be achieved. Current pond usage in Mediterranean Europe 9 3. Due to the depth of the pond, oxygen cant penetrate to the bottom of the pond. A plant, in contrast, must install an aerator to add oxygen Why is the facultative pond the most common type of treatment pond? Each multiple pond arrangement has its benets and therefore an operator can change the pond arrangement depending on the situation. For example, ponds operating in parallel prevent interruption of treatment during the cooler months of the year. This is when a pond can expe- In addition to oxygen concentration, the oxygen reduction potential of the growth medium influences bacterial growth. Consider the following statements regarding waste stabilization ponds: The pond has a symbiotic process of waste stabilization through algae on one hand and bacteria on the other The oxygen in the pond is provided by algae through photosynthesis The detention period is of the order of two to three days The bacteria which develop