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This article used three-dimensional excitation-emission matrix fluorescence spectroscopy and features of fluorescence peaks to discuss fluorescence characteristics of dissolved humic acids (HA) with different sources and their complexes with different metal ions. The fluorescence peaks of dissolved product HA and dissolved natural HA had the strongest intensities at pH 10.0 and at pH 9.0 respectively...
Aerobic composting is a method for sanitary disposal of human feces as has been used in bio-toilet systems. As the composting products can be utilized as fertilizer, it would be favorable if the composting condition could be well controlled for holding fecal nitrogen as far as possible in the composts. In this study, batch experiments were conducted using a closed aerobic composting reactor with sawdust...
Cultured with different carbon sources and different concentrations of phosphorus under anaerobic/aerobic condition, the characteristics of phosphorus release and accumulation of the two strains of Escherichia DCJ-1, DCJ-2 were discussed. DCJ-1 fed with acetate, considerable phosphorus was released and accumulated at 40mg/L PO43−; and DCJ-1 had the capacity of phosphorus release and accumulation when...
Method for simultaneous analyzing the residual of PAEs & PAHs in municipal wastewater by solid phase extraction coupled with gas chromatography was established. The proposed methods were used for the analysis of 16 PAHs & 6 PAEs of the municipal wastewater in Xi'an. NAPT, ACNY, ACEN, FLUR, PHEN, DMP, ANTH, PYR, DEP, DEHP, DBP, and BBP were quite frequently observed in influent. The analytes...
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