Shrimp aquaculture wastewater after the end of the rearing period has a high total organic matter (TOM) content of up to 87. 74 mg/L. If the wastewater is disposed of directly without any efforts to reduce or treatment. it will disturb public waters ecosystem because of the high organic matter. https://www.roneverhart.com/Verragio-Paradiso-Round-Diamond-Engagement-Ring-Setting-0-55-CTW-p5464/