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The efficiency removal of phosphorus by using recycled concrete aggregate (RCA) as filter

A Roni, Norwardatun and Adnan, Suraya Hani and Hamdan, Rafidah The efficiency removal of phosphorus by using recycled concrete aggregate (RCA) as filter. In: Sustainable Environmental Technology. Penerbit UTHM, pp. 23-30. ISBN 978-967-2216-44-5

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Phosphorus (P) is a main nutrient element plants growth in natural water system. However, excessive P loads to water bodies from industrial, agricultural, household wastes may cause the overgrowth of aquatic plants or algae which accelerate the depletion of dissolved oxygen (DO) in waters, and leading to serious eutrophication problems. In developing countries, approximately 75% of domestic wastewater is released to the environment without treatment (Rozari et al. 2016). Ayaz et al. (2012) reported that eutrophication in receiving water bodies may occur when concentration of phosphorus was 6 mg/L. Therefore, proper treatment to remove phosphorus from domestic wastewater to achieve the admissible level for natural systems is needed. Besides, construction and demolition (C&D) activities shows a growing trend for several years. High cost waste disposal and pollution will occur if the management of solid waste in construction not disposed in a proper method. Thus, to promote sustainable of natural resources and reduced disposal of demolition waste, recycling of concrete is a significant alternative method. Recycled concrete aggregate that has been crushed for selected size was used in this study to investigate its performance as an effective filter for removal of P. According to (Nasir, 2016) the important factors that need to be considered in designing a filter are the selection of the filter material itself. The utilization of easily available and low cost materials has been widely demonstrated by previous study in removing phosphorus including limestone, fly ash, iron oxide, steel slag and blast furnace slag (Johansson, 2013). Therefore, a detailed study of filter media capabilities for the removal of phosphorus is essential.�

Item Type: Book Section
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA1-163 Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering Technology > Department of Civil Engineering Technology
Depositing User: Mr Abdul Rahim Mat Radzuan
Date Deposited: 31 Oct 2019 02:43
Last Modified: 31 Oct 2019 02:43
URI: http://eprints.uthm.edu.my/id/eprint/11907
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