What are the factors to consider in designing a sewage and wastewater treatment plant?
What are the factors to consider in designing a sewage and wastewater treatment plant?
Some of the factors which should be taken into consideration in this evaluation include:
- Locations of drinking water sources, surface water intakes and groundwater wells;
- Adequacy of isolation from residential areas and land use surrounding plant site;
- Prevailing wind directions;
- Susceptibility of site to flooding;
What are the factors to be considered while designing water treatment plant?
Major factors to be considered are: (1) type of the water source, (2) desired finished water quality, (3) skill of facility operators, and (4) the relative size of available funds.
What are the parameters of wastewater?
| Wastewater Parameter | Septage, mg/L | Relative Strength Ratio (Septage : Sewage) |
|---|---|---|
| Total Kjeldahl Nitrogen | 600 | 15 : 1 |
| Ammonia Nitrogen | 100 | 4 : 1 |
| Total Phosphorus | 210 | 25 : 1 |
| Oil and Grease | 5,500 | 55 : 1 |
What value of flow is usually considered for designing sewage treatment units?
Detailed Solution. Average flow is considered in the design of sewage treatment units owing to economy.
Is STP a code?
Indian standard code of practice for installation of septic tanks (IS: 2470) – Bureau of Indian Standards (1986) | India Water Portal.
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 are the 9 wastewater characteristics?
Basic Characteristics of Wastewater
- Physical Characteristics. · Turbidity. · Color. · Odor.
- Chemical Characteristics due to Chemical Impurities. · Chemical Oxygen Demand (COD) · Total Organic Carbon (TOC)
- Biological Characteristics due to Contaminants. · Biochemical Oxygen Demand (BOD) · Oxygen required for nitrification.
How is cod calculated?
Chemical oxygen demand, or COD, is a test that measures the amount of organic compounds in water. Consider the formula for COD calculation: (a – b) X C X 8,000 / the volume of the sample in mL. Let “a” represent the titrant used for your sample expressed in mL.
How do you calculate sewer flow rate?
Design flow for sanitary sewer can be find as shown in steps below….Step 2: Avg. Daily Sewage Flow.
| Example | ||
|---|---|---|
| Anticipated Population (P) = | 200 | Persons |
| Waste water flow per capita per day (qw )= | 60% to 80% | of water consumption (q) |
| Future anticipated average waste water flow (Qw) = | P*q*qw | Liters per day |
| 200*0.8*400 |
What is the pH of wastewater?
Raw wastewater generally has a pH near neutral (7.0), although it may vary between 6 and 8.
What are the guidelines for a sewage treatment plant?
CPCB Guidelines for Sewage Treatment Plants. 1 1. The Technology of STP. The approved STP technologies to go with are-. A. Activated Sludge Process (ASP) (only when above 500 KLD sewage is 2 2. Unit Requirements of STP. 3 3. Mechanical Equipment Requirement for STP. 4 4. Location of STP. 5 5. Treated Sewage Standards.
What are the CPCB guidelines for STP for sewage treatment plants?
The Guidelines issued for STPs by CPCB are as follows: CPCB Guidelines for Sewage Treatment Plants 1. The Technology of STP. The approved STP technologies to go with are-A. Activated Sludge Process(ASP) (only when above 500 KLD sewage is generated). B. Membrane Bio Reactor(MBR) C. Moving Bed Bio Reactor(MBBR) 2. Unit Requirements of STP
What is the objective in design of a wastewater treatment plant?
The objective in design is to maximize the area of the surface expected to have the highest infiltration rate while assuring adequate treatment of wastewater and protection of the groundwater.
Which component should be selected first in a wastewater treatment project?
Since the site char acteristics constrain the method of disposal more than other components-, the disposal component must be selected first. Selection of wastewater modification and treatment components foll ow.