Development and evaluation of green mussel shell (perna viridis) as filter of greywater for household cleaning

This study investigated the potential of green mussel shells (Perna viridis) as a natural filtration medium for treating greywater, addressing the pressing need for sustainable water management. In line with the 6th United Nations Sustainable Development Goal (SDG 6: Ensure availability and sustainable management of water and sanitation for all, 2015), the research aimed to provide a solution to water scarcity challenges. Employing an experimental research design, the study develops and assesses a water filtration device utilizing mussel shell powder as the primary medium. Research objectives included evaluating the physicochemical and microbiological attributes of both filtered and unfiltered greywater. Parameters studied include color, pH, total suspended solids, oil and grease, and total and fecal coliform bacteria. Results highlighted the evaluation of mussel shell filtration in reducing oil and grease, total suspended solids, and certain microorganisms in greywater. The process enhances water quality, suitable for non-potable applications like household cleaning. Compliance with regulatory standards set by the Department of Environment and Natural Resources is achieved for filtered greywater. In summary, green mussel shells presented a promising natural filtration solution for sustainable water management, addressing both water scarcity and waste management issues. While direct discharge into water bodies remains restricted due to microbial concerns, the study underscores the potential of filtered greywater for safe use in non-food contact sanitation solutions.