Column Study on Potential Enhancement in Bioretention Media to Treat Mix Development Area Runoff
Published 12-09-2024
Keywords
- Best Management Practices (BMPs); bioretention media; nitrogen (N) and phosphorus (P);
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Abstract
Abstract: Bioretention system was widely used as one of the Best Management Practices (BMPs) in Malaysia. In recent years, enhancement of filter media by using additives has been proven to be successful in various applications for nutrient removal from water bodies. This has shown that there is potential of using enhanced bioretention media in treating urban runoff, especially for mix development areas. A preliminary study has been conducted using various recyclable materials such as crushed cockle shells (CH), shredded newspaper (NP), shredded printed paper (PP) and coconut husk (CH) to enhance bioretention media in nutrient removal. Result shows that PP has the best performance to be used as additives in filter media of bioretention for total suspended solids (TSS, 97.4% compared to 84.5% for standard composition), total phosphorus (TP, 88.77% compared to 84.7% for standard composition) and total nitrogen (TN, 61.6% compared to 37.2% for standard composition) removal. CH was showing similar result with standard column (SC) due to the similar infiltration rate. Further trials will be required to test in larger column with vegetation to examine the overall performance of the whole bioretention system.