O_(3)、O_(3)/H_(2)O_(2)、O_(3)/S_(2)O_(8)^(2-)处理畜禽养殖废水生化出水

Treatment of Bio-treated Livestock Wastewater by O_(3)、O_(3)/H_(2)O_(2)、O_(3)/S_(2)O_(8)^(2-)

采用O_(3)、O_(3)/H_(2)O_(2)、O_(3)/S_(2)O_(8)^(2-)体系来深度处理畜禽养殖废水。在实验条件下,臭氧/过硫酸盐联合氧化体系表现出更好的处理性能:COD去除率高达35.9%~40.6%,处理后出水的pH在6.5~8.8,可生化性提升到0.39~0.41,虽然硫酸根略有上升,但是不妨碍后续的生化处理。此外,臭氧/过硫酸盐联合氧化体系表现出良好的经济性能:在实验条件下,臭氧消耗系数在0.18~0.21 kg O_(3)/kg COD,处理成本仅为0.99元/吨水和6.60元/kg COD。

In the present study,bio-treated livestock wastewater was treated by O_(3),O_(3)/H_(2)O_(2) and O_(3)/S_(2)O_(8)^(2-).The result indicated O_(3)/S_(2)O_(8)^(2-) system obtained better performance.Under experimental conditions,35.9%~40.6%COD removal was obtained,pH of effluent ranged from 6.5 to 8.8,biodegradability on bio-treated livestock wastewater was improved(namely BOD_(5)/COD was increased to 0.39~0.41).Furthermore,under experimental conditions,ozone consumption was 0.18~0.21 kgO_(3)/kgCOD,the cost was only 0.99 CNY/per ton wastewater and 6.6 CNY/kgCOD.