Elimination of Pollutants and Emerging Contaminants in Piggery Wastewater Treatment Plants

Lei Tong; Ping Li; Yi Xian Shao; Yan Xin Wang

doi:10.4028/www.scientific.net/AMR.518-523.1924

Paper Titles

Economic and Environmental Measures on Maritime Transportation Logistics the Case of GHG Emissions
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Effect of Nitrate on Sulphur Transformations Depending on Carbon Load in Laboratory-Scale Wetlands Treating Artificial Sewage
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Effects of N Deposition Induced by Environmental Pollution on Litter Decomposition Rate of Cortex phellodendri chinensis in Shenyang City
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Electrochemical Oxidation of Ultraviolet Absorbers in Wastewater Using Ti/PbO₂ Electrodes
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Elimination of Pollutants and Emerging Contaminants in Piggery Wastewater Treatment Plants
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Environmental Impact by Heavy-Metal Dispersion from the Fine Sediments of the Shuangqiao River, Xiaoqinling Gold Area, China
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Experimental Study of the Waste Gas of COIL Removing Iodine
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Numerical Simulation of Heavy Metal (Pb) Distribution in Luoyuan Bay Based on Tidal Current
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Numerical Study for Nanoparticle Removal in Vacuum Conditions
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Elimination of Pollutants and Emerging Contaminants in Piggery Wastewater Treatment Plants

Abstract:

Piggery wastewater includes a lot of hardly degradable pollutants, which are not well removed during treatment plants. In our study, a multi-stage wastewater treatment system was introduced, which contains liquid-solid separation, anaerobic fermentation, aerobic treatment, functional material filtration and oxidation processes. In RPAFR, the readily biodegradable organic matter was degraded, and the removal efficiency of COD and BOD₅ reached 80%; but nitrogen and phosphorus could not be removed effectively. When MEOD and MFMI were operated to treat digested effluent, nitrogen and phosphorus were effectively removed. The removal of three kinds of antibiotics (FQs, SMs and TCs) in piggery wastewater treatment plants were detected, and for most antibiotics, more than 90% compounds were eliminated, but only few of them were totally removed in wastewater of final effluent. The weather also influenced the removal efficiency of DC, CIP and SMZ, which were better in autumn than spring, however, the whole trend of antibiotics elimination were similar in different weather. Different kinds of antibiotics residues in final effluent enhanced the ecological risk of environmental waters and human health.