The Physical and Chemical Characteristic of Recycled Concrete Aggregate for Removal Phosphorus as a Filter System

Abstract

The removal of phosphorus from wastewater is a common procedure. Improving water quality is the aim of wastewater treatment. There are many types of conventional methods that have been used for the removal of phosphorus. Phosphorus reaction with chemicals can be removed immediately from water. However, the use of chemicals often increases the cost of wastewater treatment. This study aims to investigate the physical and chemical characteristics of RCA that influence the removal of phosphorus, as well as the percentage of phosphorus removal using RCA of two different sizes namely, 5 mm to 10 mm and 25 mm to 30 mm. The samples taken from the influent and effluent filters were tested and analysed in terms of the uptake capacity of phosphorus (q) and the percentage of phosphorus removal (%). The highest percentage of phosphorus removal achieved was 99.54% in the initial concentration of 10 mg/L by RCA measuring between 5 mm to 10 mm while the lowest percentage of phosphorus removal was 66.25% in the initial concentration of 50 mg/L for RCAs measuring between 25 mm to 30 mm. Furthermore, RCA achieved the highest uptake capacity (q) of 3.45 mg/L in the initial wastewater concentration of 50 mg/L. In conclusion, RCA has the potential to remove phosphorus, particularly in low concentrations of synthetic wastewater and high pH conditions.

Assessment of the Potential for the Formation of a Circular Phosphorus Cycle Using Substance Flow Analysis Based on Reports from Malaysia

“…Despite the use of different computing technologies and aggregation-modelling simulations, the ultimate goal is to achieve ‘P management solutions’ beneficial to the interests of many social actors (Leinweber et al, 2018). Research papers involving a second version (MFA/SFA-non P) managed to solve several different problems in the areas of nutrient phosphate that has become a common practice in fulfilling the current research trends more effectively (Abd Roni et al, 2021; Kawasaki et al, 2016). The search for practitioners for MFA/SFA non-P has a more complicated epistemic knowledge base and is considered extremely relevant for a long-term transfer to problem solving in the real world.…”

Optimizing vertical flow aerated steel slag filter system with nitrifiers bacteria for nutrients' removal from domestic wastewater: a pilot study

“…The authors acknowledge the masterʼs thesis of Izzati Izwani Ibrahim ('Effectiveness Study of Vertical and Horizontal Aerated Steel Slag Filter for Nitrogen Removal from Domestic Wastewater'), from which the current manuscript is derived. The authors also acknowledge the Tables (2) and Figures (6) and confirm that they used no third-party material in the manuscript. The authors wish to thank the Ministry of Higher Education (MOHE) for supporting this research under FRGS 1613 (New Insight into PO 4 3 -Removal due to the Metal Oxides Concentrationʼs Variuosness in Steel Slag for Industrial Wastewater Treatment).…”

“…These findings are inconsistent with previous studies which confirmed that the primary and secondary treatment processing of sewage wastewater is insufficient for removing nutrients. 5,6 Moreover, the results revealed that the wastewater generated from the wastewater treatment plant in the study area should be subjected to a treatment process to minimize the concentrations of the pollutants before the final disposal into the environment.…”

“…4 Rock filter (RF) is an alternative natural treatment method for removing nutrients from wastewater. 5,6 The method is relatively simple, cost-effective and efficient in removing nutrients from large quantities of wastewater. 7 Moreover, the method is more applicable to treating wastewater from small communities owing to the simplicity of construction, low initial cost, and the potential for extremely low operation and maintenance costs and energy requirements.…”

“…Rock filter (RF) is an alternative natural treatment method for removing nutrients from wastewater 5,6 . The method is relatively simple, cost‐effective and efficient in removing nutrients from large quantities of wastewater 7 .…”