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Fluorescent dissolved organic matter (FDOM), having complex structures like aromatic structure and double bond structure, is able to represent relatively refractory parts of dissolved organic matter (DOM). This study investigated the distribution of FDOM in the influents and the removal in the secondary effluents of 15 municipal wastewater treatment plants (WWTPs) in 15 provincial capitals of China. Eight components have been identified using excitation emission matrix combined with parallel factor analysis (EEM-PARAFAC). Tryptophan-lik

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Choosing Between a Leather and Fabric 2 Seater Sofa The quiet protagonists of your living room are often overlooked: the small but mighty two-seater sofas. They are designed to be trendy but timeless, they offer a range of design and functionality. Leather is a durable material that is able to withstand daily wear and tear. It's an excellent choice for pets and children. It also resists fading better than fabric. Comfort The sofa is the center of your living space. It's where you relax and watch films, or chat with friends. So, it's important that your sofa is co