In order to determine the required capacity of the water plant, we must calculate the maximum daily water demand. This value is calculated as follows: 1.8 × 11.1 MGD = 20.0 MGD This value determines the the size of the water treatment plant. The water treatment plant must have the capacity to treat 20.0 MGD in order to support peak demands.
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How to calculate water treatment plant capacity?
Water treatment plant capacity calculation begins with demin water demand, potable water demand, utility water demand, and the last is raw water demand.
What is the purpose of the individual treatment plant units?
The individual treatment plant units have been intended to take into account the drinking water requirements and to identify areas that need enhancement to improve the functioning of WTP and to achieve better outcomes in terms of water quality, operating costs, water wastage, etc. [4]. ...
What are the components of a water treatment plant?
Typically, a water treatment plant (WTP) comprises intake, pumping, pre-sedimentation (in some cases), coagulation, flocculation, clarification, adsorption, filtration, disi nfection, storage, and pumping to treat water for consumption [1-4]. The designs of a unit or some units for WTPs are available [5-10].
What is the average discharge of a water treatment plant?
The calculations and detailed drawings of the units were displayed, the average discharge and population of used for the WTP design were 60,000 m3/day and 200,000, respectively. In addition, the calculation required some of the parameters to be estimated as field data, which were taken into consideration.
How are water treatment plants calculated?
The discharges can be calculated as follows:Average discharge (Q avg.) = 200,000 × 300 LPCD = 60,000,000 L/day = 60,000 m3/day =0.694 m3/s.Minimum discharge (Q min) = 60,000 × 0.4 = 24,000 m3/day = 0.278 m3/s.Maximum discharge (Q max) = 60,000 × 1.8 = 108,000 m3/day = 1.25 m3/s.Fig. Greater-Zab River on the map.
What is the design period for the water treatment plant?
What is the design period for the water treatment unit? Explanation: Water treatment unit is designed for 15 years and its design discharge is maximum daily demand.
How do you design STP?
2:085:43Sewage Treatment Plant Design Calculation / Capacity - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe size of the symmetry plant or B is equal to the STP. So you say STP. So capacity of a surfaceMoreThe size of the symmetry plant or B is equal to the STP. So you say STP. So capacity of a surface treatment plant. So I will start to the right now.
How do you calculate the capacity of the effluent treatment plant?
Multiply your Minimum Population (P) by 150 to get your daily estimated wastewater production. For example, a three bed house with a Minimum Population (P) of 5 people would have a daily estimated wastewater production of 750 litres per day (5 x 150).
What is the design period?
Design period may be defined as. It is the number of years in future for which the given facility is available to meet the demand. Or. The number of years in future for which supply will be more than demand.
What is the design period for the water treatment unit 2 points a 10 years B 15 years C 20 years D 30 years?
What is the design period for the water treatment unit? Solution: Explanation: Water treatment unit is designed for 15 years and its design discharge is a maximum daily demand.
How do you calculate sludge in STP?
Calculation : The daily sludge mass produced = ( 100,000 ) ( 0.080 ) = 8,000 kg dry SS / day. Since 97 % MC is 3 % SC or approximately 30 kg dry SS / m 3 sludge, the daily volume produced is 8,000 / 30 = 267 m 3 .
How is sewage water calculated?
SIZE OF SEWAGE TREATMENT PLANT / CAPACITY OF SEWAGE TREATMENT PLANT (STP)Total domestic (raw) water demand = TWD.Estimated Sewage X = 90 % of TWD.Estimate Sewerage X = 90/100 * TWD For Eg If TWD = 1500 KLD.Capacity of S.T.P = 90 / 100 * 1500 KLD = 1350 KLD.More items...•
What is the design of sewage treatment?
Design Aspect of A Treatment Plant Wastewater discharge pattern ( Continuous/ intermittent/ batch dump/ peaking factors/ seasonal variations) Locational and environmental factors ( Altitude, Temperature variations, rainfall etc) Selection of appropriate Technology, treatment units and treatment Processes Etc.
What is ETP capacity?
Capacity (KLD/MLD) 5 MLD. Inlet Flow Rate(m3/day or m3/hr) 5000 m3/day.
What are the parameters of ETP?
Under this study the various parameters such as temperature, pH, chemical oxygen demand(COD), suspended solids(SS), total dissolved solids(TDS), phosphorus and heavy metals are determined by taking samples at inlet and outlet of effluent treatment plant and compared with the Indian standards for effluent discharge into ...
What is STP capacity?
Sewage Treatment Plant (STP), Capacity: 5 KLD to 50 MLD, Waste Water Treatment Plant.
What is a WTP?
This work presented the design steps and calculation for each unit of the water treatment plant (WTP), due to its crucial role domestically and drinking purpose. It also illustrated and designed the procedures of the water processing units by estimating water demand and designing the unit process. The objectives of this work were to evaluate the water demand for a certain community and to present design steps and calculations for the required units of a WTP. The design of the WTP units was applied to Greater-Zab River water for the selected location in Erbil City-Iraq. The quality and quantity of the Greater-Zab River water at various times were statistically analyzed and presented. The units of the treatment processes involved intake, coagulation, flocculation, sedimentation, adsorption (optional), filtration, disinfection, storage, and pumping. The calculations and detailed drawings of the units were displayed, the average discharge and population used for the WTP design were 60,000 m3/day and 200,000, respectively. Besides, the calculation required some of the parameters to be estimated as field data, which were taken into consideration. The outline results of each unit of the WTP were tabulated. The quality and quantity of the surface water source affected the WTP design. It can be concluded that this work can be used as a source for designing other WTP units. A number of factors such as the age of WTP, maintenance, economical and political situations, technical problems, and water demand had a great impact on the removal efficiency of the WTP units.
Where is the Kawergosk refinery located?
Kawergosk oil refinery is one of the biggest refineries in Kurdistan Region-Iraq. The refinery lies on Khabat District and the produced wastewater disposed to Greater-Zab River (GZR). The effect of Kawergosk refinery wastewater (KRWW) on the surrounded water sources was studied by examining the characteristics of KRWW, GZR and the groundwater. The impact of the KRWW on the surface and groundwater sources were examined via measuring parameters of pH, oxidation-reduction potential (ORP), phenol, oil and grease, fluoride, salinity, dissolved oxygen (DO), five day biochemical oxygen demand (BOD5), chemical oxygen demand (COD), BOD5/COD, color, ammonia-nitrogen (NH3-N), nitrite, nitrate, zinc, potassium, turbidity, chloride, electrical conductivity (EC), total dissolved salts (TD Salts)… etc. To assess effect of KRWW on GZR, two locations of GZR were selected one of them was at the disposing point (i.e. mixing point between the GZR and KRWW) and the other was before disposal of KRWW to the river. The results of pH, ORP, oil and grease, TDS, Salinity, NH3-N, EC, nitrite, nitrate, SS, turbidity, chloride, total acidity, total alkalinity, and total hardness showed that the GZR was polluted at the mixing point. For evaluating the effect of KRWW on the groundwater, two groundwater sites were chosen, one of them close to the refinery near Small Agulan village, and the second one was far from the refinery near Al-Jadida village. Results illustrated that commonly KRWW had not effect on the groundwater.
What is water treatment?
Water treatment is any process that improves the quality of water to make it appropriate for a specific end-use. The end use may be drinking, industrial water supply, irrigation, river flow maintenance, water recreation or many other uses, including being safely returned to the environment. Water treatment removes contaminants ...
Why use multiple barrier approach in surface water treatment plant?
In a surface water treatment plant units used are: A multiple barrier approach should be adopted for reliability reasons of safety in the water supply system. In the case of malefaction or maintenance of one unit, the system will be able to continue to operate with the rest of the units being in operation.
What is a wash trough?
Wash Troughs Design. Wash troughs are used to carry the purified water produced from the method of backwash. The material options are of fibreglass-reinforced plastic (FRP), concrete or stainless steel.
What is a water filtration unit?
A filtration unit is built-in into one of the last stages of the water treatment cycle. Filter units aim to remove the suspended solids that were not removed in the previous treatment process. The filters are made out of fine and coarse sand layers were by means of mechanical screening trapping of solid particles in between the grains of sand occur hence purifying and cleaning the water from impurities. Tests of filter performance can be done by assessing the turbidity of a sample of the water.
What is flocculation tank?
Flocculation is the slow mixing process by which fine particulates are caused to clump together into a floc. The floc may then float to the top of the liquid. The design criteria of the flocculation tank are based on previous studies assumed as common practice in the industry.
What is the process of adding chemicals to the water that promotes the clumping of fines found in the
1. COAGULATION. Coagulation is the rapid mixing process of adding compound chemicals to the water that promote the clumping of fines found in the lake (e.g. soil particles) into large flocs thus they can be easily separated. Adding of coagulants such as aluminium sulphate ( alum ), ferric sulphate or sodium aluminate will destabilise colloidal ...
Why is water treatment important?
Water treatment removes contaminants and undesirable components or reduces their concentration so that the water becomes fit for its desired end-use. This treatment is crucial to human health and allows humans to benefit from both drinking and irrigation use.
What is the process of thickening sludge?
Centrifugations is a process by which solids are thickened or dewatered from the sludge under the influence of a ugal centrif field many times theforce of gravity. There are three basic types of centrifuges available for sludge thickening : (1) basket, (2) disc nozzle, and (3) solid bowl (or scroll – type decanter).
Why is activated sludge wasted?
Because more activated sludge is produced than can be used in the process, some of it is wasted from the aeration basin or from the returned sludge line to the sludge – handling systems for treatment and disposal. Air is introduced into the aeration basin either by diffusers or by mechanical mixers.
Is secondary sludge a single stream?
In some cases, secondary sludge is returned to the primary setting tank, ultimately giving a single stream consisting of combined sludge. Sludge contains large volume of water . the small fraction solids in the sludge is highly offensive. Thus, the problem involved with handling and disposal of sludge are complex.
