Effective microorganisms composite scupper drain (EM-CSD) as a new revolution in drainage system: A preliminary study

Effective microorganisms composite scupper drain (EM-CSD) system, which is designed using eco-composite in porous concrete with the concrete mixture and a cement replacement, consists of the waste material elements that being recycled, such as wood waste ash, egg shells, rice husk ash (RHA), and many more, for the purpose of managing stormwater quantity and quality, and also for ecologically sustainable development. The numerous ecocomposite materials researches have been conducted, specifically for the building materials. In addition, several impermeable surfaces including sidewalks, secondary roads, and also parking lots in several countries have used the porous concrete materials, as it is good quality in terms of the concrete strength, the porosity, the workability, and also the maintenance cost reduction. Besides, previous researches related to effective microorganisms (EM) as an admixture in concrete have been done, as a part of construction materials. However, the previous researches of eco-composite, specifically using RHA and EM did not focus on the drainage systems. Therefore, this paper presents a preliminary study of EM-CSD system using RHA and EM as a cement replacement, as a green technology and sustainable development in urban drainage systems. This kind of technology is a new revolution to replace the existing drainage systems, with high cost effective consideration, high concrete mixture strength and workability, and low temperature. For the part of the research, Shah Alam, Selangor as the main study area to implement this kind of the new drainage system technology for the purpose to reduce the flash flood phenomenon, to overcome the dengue fever issues due to stagnant water in the drainage system, and also vandalism of the drainage cover, which cause a safety issue for public. This preliminary study using EM-CSD as a new revolution in the drainage system indicates the ecocomposite porous concrete mixtures are expected able to overcome the drainage system problems with low cost maintenance and high on concrete strength and workability.