Removal of nutrients and veterinary antibiotics from swine wastewater by a constructed macrophyte floating bed system.
The potential of three varieties of Italian ryegrass (Lolium multiflorum Lam.), Dryan, Tachimasari and Waseyutaka, to improve the water quality of swine wastewater was evaluated using a constructed macrophyte floating bed system. With respect to reductions in levels of nutrients, chemical oxygen demand (COD), and sulfonamide antimicrobials (SAs, including sulfadiazine, sulfamethazine, and sulfamethoxazole), Dryan performed better than Tachimasari and Waseyutaka. For Dryan, total N was reduced by 84.0%, total P by 90.4%, COD by 83.4% and sulfonamide antimicrobials by 91.8-99.5%. Similar results were observed for Tachimasari and Waseyutaka. The results indicated that the treatment of swine wastewater using the constructed macrophyte floating bed system was effective in the removal of nutrients and veterinary antibiotics.
Xian
Qiming
Q
Institute of Resource and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China. xianqm@nju.edu.cn
Hu
Lixia
L
Chen
Hancheng
H
Chang
Zhizhou
Z
Zou
Huixian
H
D000818:Animals; D000890:Anti-Infective Agents / Q000378:metabolism*; D001673:Biodegradation, Environmental; D018533:Biomass; D008129:Lolium / Q000254:growth & development / Q000378:metabolism*; D009584:Nitrogen / Q000378:metabolism; D010100:Oxygen / Q000737:chemistry; D010758:Phosphorus / Q000378:metabolism; D013449:Sulfonamides / Q000378:metabolism*; D013552:Swine; D019155:Veterinary Drugs / Q000378:metabolism; D018505:Waste Management / Q000379:methods*
D000890:Anti-Infective Agents; D013449:Sulfonamides; D019155:Veterinary Drugs; D010758:Phosphorus; D009584:Nitrogen; D010100:Oxygen