Modified rational method for sizing infiltration structures

A simple method is presented to size infiltration structures like infiltration basins and trenches to control storm water runoff. The runoff hydrograph is assumed to be trapezoidal in shape with a peak runoff rate calculated using the rational formula. Given the watershed time of concentration and the allowable runoff rate, the method determines the required size of the infiltration structure. A practical application section is included to demonstrate the use of the method.Key words: rational method, infiltration basin, infiltration trench, capture volume, storage time.

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Study on storm water control by permeable pavement and infiltration pipes

Water Science & Technology ◽

10.2166/wst.1995.0007 ◽

1995 ◽

Vol 32 (1) ◽

pp. 25-32 ◽

Cited By ~ 13

Author(s):

Satoshi Watanabe

Keyword(s):

Control Measures ◽

Storm Water ◽

Water Runoff ◽

Water Control ◽

Control Effect ◽

Permeable Pavement ◽

Storm Water Runoff ◽

Study Results ◽

Runoff Control ◽

Peak Runoff

Since 1982, the City of Yokohama has been studying the effects of storm water runoff control measures by setting up a model area in a residential area and installing two types of runoff control facilities – permeable pavement and infiltration pipes. The model area was subdivided into three areas according to the combination of the runoff control facilities. The study results revealed that 15 to 20 percent of the peak runoff control effect was achieved by the use of the installed runoff control facilities. Throughout the study period, no deterioration of the strength and features of the permeable pavement in comparison with ordinary pavement was observed.

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The Reseach of Sorbent Usage for Oil Products Removal from Storm Water Runoff

International Conference on Agricultural, Ecological and Medical Sciences (AEMS-2014) Feb. 6-7, 2014 Bali (Indonesia) ◽

10.15242/iicbe.c0214017 ◽

2014 ◽

Keyword(s):

Oil Products ◽

Storm Water ◽

Water Runoff ◽

Storm Water Runoff

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Long-Term Simulation of Pollutant Loads in Treatment Plant Effluents and Combined Sewer Overflows

Water Science & Technology ◽

10.2166/wst.1990.0290 ◽

1990 ◽

Vol 22 (10-11) ◽

pp. 69-76 ◽

Cited By ~ 5

Author(s):

A. Durchschlag

Keyword(s):

Waste Water Treatment ◽

Treatment Plant ◽

Storm Water ◽

Water Runoff ◽

Storage Tanks ◽

Combined Sewer Overflows ◽

Storm Water Runoff ◽

Combined Sewer ◽

Hydraulic Load ◽

Water Tanks

As a result of urbanization, the pollutant discharges from sources such as treatment plant effluents and polluted stormwaters are responsible for an unacceptable water quality in the receiving waters.In particular, combined sewer system overflows may produce great damage due to a shock effect. To reduce these combined sewer overflow discharges, the most frequently used method is to build stormwater storage tanks. During storm water runoff, the hydraulic load of waste water treatment plants increases with additional retention storage. This might decrease the treatment efficiency and thereby decrease the benefit of stormwater storage tanks. The dynamic dependence between transport, storage and treatment is usually not taken into account. This dependence must be accounted for when planning treatment plants and calculating storage capacities in order to minimize the total pollution load to the receiving waters. A numerical model will be described that enables the BOD discharges to be continuously calculated. The pollutant transport process within the networks and the purification process within the treatment plants are simulated. The results of the simulation illustrate; a statistical balance of the efficiency of stormwater tanks with the treatment plant capacity and to optimize the volume of storm water tanks and the operation of combined sewer systems and treatment plants.

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