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1225618 
Journal Article 
Chemical composition of organic matters in domestic wastewater 
Huang, M; Li, Y; Gu, G 
2010 
Yes 
Desalination
ISSN: 0011-9164 
Elsevier BV 
262 
1-3 (Nov 15 
36-42 
WOS:000282560100006 
The chemical composition of organic matters (OMs) in domestic wastewater was determined in order to investigate types and origin of OMs, which will supply a more scientific basis for COD fractions of activated sludge models (ASMs) and wastewater treatment management. Chemical hydrolysis and chromatographic analysis were used to quantify macromolecular OMs such as proteins and sugars. Results suggested that the largest group of OMs in the domestic wastewater was fibers. Proteins and sugars were the next two largest groups in the wastewater. Fibers, proteins and sugars accounted for 20.64%, 12.38% and 10.65% of TOC in the wastewater, respectively. Ten endocrine disrupting chemicals were determined in the wastewater; most of them were PAHs and phthalates. The sum of volatile fatty acids, soluble proteins and soluble sugars formed about 30% of total COD of the wastewater, and not all the soluble proteins and sugars were degradable substrates. The largest part of TOC in the wastewater was supra colloidal. Most proteins and sugars in the wastewater were larger than 0.001I14m. 
Total organic carbon; Domestic Wastewater; Fatty acids; Fibers; Chemical Composition; Sugars; Proteins; Hydrolysis; Sludge; Chromatographic techniques; Wastewater Treatment; Organic Matter; Wastewater; Chemical Oxygen Demand; 2010) 
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