Calculate equalization tank volume, dimensions, and retention time for flow balancing in water and wastewater treatment plants. Accounts for peak flow factors, surge volumes, and tank geometry.
Enter your process parameters below to calculate design values. All calculations follow industry-standard methodologies.
Equalization tanks smooth out diurnal flow and load variations to protect downstream biological treatment from shock loads. Typical retention times are 2-8 hours for municipal wastewater and 4-12 hours for industrial effluents with batch discharge patterns. The tank should be mixed to prevent solids settling and septicity.
Rectangular tanks with length-to-width ratios of 1.5:1 to 3:1 are common for process tanks. Circular tanks are efficient for smaller volumes. The inlet and outlet should be positioned to maximise plug flow characteristics and minimise short-circuiting. Baffled or compartmentalized designs improve flow distribution. Online equalization (variable level) provides more volume flexibility than offline (constant level) designs.
Equalization, buffering, and process tanks for water and wastewater applications.
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