Oxidation pond for municipal wastewater treatment springerlink. The minimum surface area of an oxidation pond must be no less than 400 square feet with a 4 to 5 foot average liquid depth and vertical side walls. The design should include an estimate of the rate of sludge. The waste water treatment system has been accepted and. Oxidation pond oxidation pond oxidation pond or waste stabilization pond wsp are the simplest biological systems available for the treatment of wastewater. A manmade anthropogenic body of water in which waste is consumed by bacteria, used most frequently with other wastetreatment processes. A wast ewater stabilization pond is a relatively shallow body of wastewater contained in an earthen basi n which is designed to treat wastewater. However, it should be understood that designing a pond system is typically an interactive process. An aerated lagoon or aerated pond is a simple wastewater treatment system consisting of a pond with artificial aeration to promote the biological oxidation of. Oxidation ponds are aerobic systems the oxygen required by the heterotrophic bacteria is provided not only by transfer from the atmosphere but also by photosynthetic algae. The oxidation pond treatment process is natural, because it uses microorganisms such as bacteria and algae.
Freeboard is normally 3 feet meaning the water level should be kept below 3 feet from the dike top. Oxidation pond free download as powerpoint presentation. Oxidation ponds so called facultative or aerobic anaerobic pond in which have the whole range of reaction. Guidelines for the design, construction and operation of oxidation ponds revised 23rd may 2005 page 2 fig 2.
Types of oxidation ponds there are four major types of oxidation ponds. Oxidation ponds, also called lagoons or stabilization ponds, are large, shallow ponds designed to treat wastewater through the interaction of sunlight, bacteria, and algae. They are manmade depressions confined by earthen structures. There are 4 different types of stabilization ponds facultative ponds maturation ponds river purification lakes highrate aerobic stabilization ponds 6. Anaerobic ponds, in which the contribution of any possible aerobic surface layer is small.
Pdf oxidation pond for municipal wastewater treatment. Wastewater or influent enters on one side of the waste stabilization pond and exits on the other side as effluent, after spending several days in the pond, during which treatment processes take place. Couple this with the cost savings benefits of lower construction, easy installation, and low maintenance you have a winner in wastewater treatment. Waste stabilization pond design the design criteria of the. Many of the topics have applications at either full scale or in isolation for laboratory analysis. Wastewater treatment wastewater treatment oxidation pond. Dried algae were used as a feed additive for tilapia oreochromis niloticus l. Pdf treatment system in oxidation ponds ahmed atta. Oxidation demand bod and settling of sewage solids, whilst. For design flows in excess of 400 gpd, the pond area must be increased to provide.
Asesslng oxidation pond design criteria 3s the anaerobic ponds of brazlandia were designed. It has the major advantages of low land and less power requirement for bod. Aerobic highrate pond in which there is no significant anaerobic or sludge zone. Design manual for municipal wastewater stabilization ponds. A tool for wastewater treatment nc tharavathy, m krishnamoorthy, and bb hosetti. In an oxidation pond, wastewater enters the treatment pond after it has received primary treatment, i. Caldwell senior sanitary engineer, public works department, twelfth naval district, san francisco, california sewage oxidation ponds as used in southwestern united states may be described as shallow artificial basins designed to receive clarified sewage con tinuously for a. The helix design guide should be used as a reference to help determine which pond meets your goals and expectations. Oxidation pond is one of the biological systems which are used for the treatment of wastewater. After 3 months of cultivation, fish fed 3% dried algae had a higher pless than 0. For these reasons, the oxidation pond provides an attractive method of sustainable wastewater treatment with the following caveats. Oxidation ditch wastewater treatment trioval oxidation.
The purpose of these documents is to provide guidance on the planning and design of waste stabilisation ponds wsps in the northern territory nt managed by the power and water corporation pwc. A pond that contains partially treated wastewater which is then left to allow the growth of algae and bacteria which decompose therest of the waste. Oxidation ponds are designed to function as either completely stirred or. Mwd 1974, and adjusted for the fraction of design loading i. These criteria are vital to effective pond performance regardless of the design equation employed and must be considered in facility design. This minimum size pond is adequate for design flows of up to 400 gallonsday gpd. The estimated loading was calculated for the primary pond only at 1200 persons ha1. Department of postgraduate and research in biosciences, mangalore university, mangalore 574199, karnataka, india. This design manual has been prepared through a grant from danida enreca. Many of the topics have applications at either full scale or in. High ss concentrations in pond effluents have traditionally represented a major drawback to their use. Mar 25, 2016 types of oxidation ponds aerobic ponds anaerobic ponds facultative ponds maturation or tertiary ponds 4.
Last class we were discussing about various design parameters of activated. Group 14 design of waste stabilisation ponds youtube. This document is intended to guide a designer through a stepbystep outline on how a pond system evaluation and design should be performed. Design of oxidation ditches for the achievement of good results with the oxidation ditch it is needed that a good design is made, with values for ditch volume and for oxyge nation, capacity which are not out of proportion to what they should be. Easy access to the main principles of the topic in this case waste stabilisation ponds. Anaerobic ponds are not an appropriate design for locations that do not have sufficient land available. An aerated lagoon is a treatment pond with mechanical aeration to introduce oxygen into the pond in order to promote the biological oxidation of the wastewater. Algae grow using energy from the sun and carbon dioxide and inorganic compounds released by. The constructed wetlands and waste stabilization ponds cwwsp project is a. 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. Based upon the range of biological reactions occurring in pounds there are three types of ponds.
This lesson is on solved examples related to design of oxidation pond. Oxidation pond some ponds have mechanical aerators on them. Algae grow using energy from the sun and carbon dioxide and inorganic compounds released by bacteria in water. Introduction to ponds, lagoons, and natural systems study. Types of oxidation ponds aerobic ponds anaerobic ponds facultative ponds maturation or tertiary ponds 4. If, while working on a design, an unfavorable restriction becomes evident and a design. An aerated lagoon is a treatment pond that is provided with mechanical aeration that introduces oxygen into the pond in order to promote the biological oxidation of the wastewater. In essence, anaerobic and facultative ponds are designed for removal of soluble biochemical. Aerobic ponds, also known as oxidation ponds or highrate aerobic ponds. The size and number of maturation ponds needed in series is determined by the required retention time to achieve a specified effluent pathogen concentration. Waste stabilization ponds for waste water treatment, anaerobic pond by fernando j. Oxidation ponds definition, glossary, details oilgae. Many characteristics make oxidation ponds substantially different from other wastewater treatment. Design equations and examples are found in the appendix c.
It is considered as the secondary treatment method by which natural purifi. Oxidation ditches are typically complete mix systems, but they can be modified to approach plug flow conditions. Some of the background information was obtained through a survey conducted. Waste stabilization ponds for waste water treatment. Guidelines for the design, construction and operation of oxidation ponds revised 23rd may 2005 page 1 1. For design flows in excess of 400 gpd, the pond area must be. Solved examples on oxidation pond part 2 unacademy. Physical design and construction criteria are discussed in chapter 4. A pond that contains partially treated wastewater which is then left to allow the growth of algae and bacteria which decompose therest of the waste oxidation pond. Wastewater technology fact sheet oxidation ditches description an oxidation ditch is a modified activated sludge biological treatment process that utilizes long solids retention times srts to remove biodegradable organics.
The process of oxidation of organic matter by aerobic bacteria is usually dominant in primary facultative ponds or secondary facultative ponds. Maturation pond is the third pond in the multi cell series of woe system and is designed for faecal coliform removal. Ten auckland domestic sewage oxidation ponds a series were sampled generally monthly the time of sampling not being specified between august. Effluent characteristics of domestic sewage oxidation. Design guideline waste stabilisation ponds water corporation. Oxidation pond article about oxidation pond by the free.
Trevino quiroga abstract waste stabilization ponds wsp have been used worldwide over the last 50 years for municipal and industrial wastewater. This includes design, construction and operation simplicity. The schematics in the following pages do not encompass all of the possibilities and pond design configurations. Wastewater treatment ponds with a maximum facility design capacity in excess of 2 mgd will have to satisfy the basic suspended solids requirements of 40 cfr part 3 i. The wastewater treatment processes that occur in anaerobic, facultative and maturation ponds are described in detail in section 3 of the design manual for wsps in india see. Oxidation pond presentation free download as powerpoint presentation. The waste stabilisation pond design manual is a summary manual of planning and design code. Jan 22, 2016 oxidation ponds are aerobic systems the oxygen required by the heterotrophic bacteria is provided not only by transfer from the atmosphere but also by photosynthetic algae. Principles of design and operations of wastewater treatment pond. Consult with your authorized helix retailer or an authorized helix contractor who. It goes without saying that the base of the design must be the load, i.
Types of wastewater treatment ponds types of ponds. Design of an anaerobic digester for wastewater treatment. Enrol today in our site and get access to our study package comprising of video lectures, study material, practice questions and test. Assessing oxidation pond design criteria in a tropical. Wastewater or influent enters on one side of the waste stabilization pond and exits on the other side as effluent, after. An aerated lagoon or aerated pond is a simple wastewater treatment system consisting of a pond with artificial aeration to promote the biological oxidation of wastewaters there are many other aerobic biological processes for treatment of wastewaters, for example activated sludge, trickling filters, rotating biological contactors and biofilters. The biochemical processes take place in deep basins, and such ponds are often used as preliminary treatment systems. Chapter 14 wastewater treatment ponds 141, background. The basic designs of the various pond types are presented in this chapter. Operators utilize oxygen and microbial action in lagoons to treat the pollutants in the wastewater.
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