Field Evaluation of Hydrologic and Water Quality Benefits of Perforated Paving Block Structure (P2BS)

Suripin S,Kurniani Dwi,Sachro Sri Sangkawati,Atmojo Pranoto Samto,Edhisono Sutarto,Budieny Hery,B Warsito,Sudarno Sudarno,T Triadi Putranto

doi:10.1051/e3sconf/202020205010

Abstract

This paper discusses the use of perforated paving block structure (P2BS) as a pavement structure on the parking lot. Model of P2BS was developed in the field to analyze its capacity in reducing runoff and improving surface runoff quality. The depth and intensity of the rainfall is regulated with a rainfall simulator. The rate of native soil infiltration (natural) was tested with ring infiltrometer. The model's ability to reduce peak discharge and runoff volume, delay time, as well as improve quality of surface runoff was observed. The results show that proposed P2BS are able to significantly reduce runoff volume and peak discharge, delay start runoff and peak discharge time. It is also able to remove pollutants, especially TSS.

Highlights

Urbanization and urban development bring an increase in the impermeable surface area, such as roads, sidewalks, parking lots, and so on
They all result in surface runoff and additional pollutants during rainfall, resulting in increased flood discharge, and pollution of water bodies [1,2,3,4]
The runoff from traffic infrastructure, such as roads, parking lots, and pedestrians carries various pollutants including organic matter, nutrients, heavy metals, oils and suspended solids, which have previously been deposited on their surfaces

Summary

Introduction

Urbanization and urban development bring an increase in the impermeable surface area, such as roads, sidewalks, parking lots, and so on They all result in surface runoff and additional pollutants during rainfall, resulting in increased flood discharge, and pollution of water bodies [1,2,3,4]. The pollutants which are usually carried away by storm-water runoff of pavements are: (a) solid particulates, like dust and litter transferred by the traffic, (b) heavy metals, like lead, zinc, iron, copper, cadmium, chromium, nickel, manganese, barium, cesium and antimony, and (c) Chlorides [5]. They are deposited on the pavement surfaces. These pollutants are washed out by surface runoff along with atmospheric pollutants

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Conclusion