农业环境科学学报2011，Vol.30Issue(4)：768-773,6.
添加造纸白泥对猪场废水厌氧消化液中氮磷回收的影响
The Recovery of the Nitrogen and Phosphorus from Anaerobically Digested Effluent of Piggery Wastewater by White Paper Sludge Application
摘要
Abstract
The MAP precipitation process was used to recover nitrogen and phosphorus from anaerobically digested effluent of piggery wastewater.For the recovery process, white paper sludge(WPS) was used to adjust the pH values, what's more, the pH value of the effluent and the dissolution of the WPS increased by aeration.The effects on the nitrogen and phosphorus recovery efficiency by different WPS dosage and aeration time were studied,and the variation laws of pH values, COD concentration, PO3-4-P concentration, NH3-N concentration,Mg2+ concentration and Ca2+ concentration in aerating were all measured.The experimental results showed when the dosage of WPS was 8 g· L-1,and the aeration time was 120 min, the recovery efficiencies of PO43--P and NH3-N were 98％ and 59％,respectively,as well as the removal efficiencies of (COD was 45％, and the effluent concentrations of PO3-4-P and NH3-N were 0.98 mg· L-1 and 60.66 mg· L-1, respectively, those in which were lower than the standards of Discharge Standard of Pollutants for Livestock and Poultry Breeding( GB 18596-2001 ).However, without WPS application, when the aeration time was 120 min, the recovery efficiencies of PO43--P and NH3-N were only 66％ and 41％,respectively, which were not meeting the standards.Therefore, it was important to recover the nitrogen and phosphorus from anaerobically digested effluent of piggery wastewater with WPS application.关键词
造纸白泥/猪场废水/厌氧消化液/氮磷回收Key words
white paper sludge/ piggery wastewater/ anaerobically digested effluent/ recovery of nitrogen and phosphorus分类
资源环境引用本文复制引用
冯文谦,黎文威,王德汉,李东,孙永明..添加造纸白泥对猪场废水厌氧消化液中氮磷回收的影响[J].农业环境科学学报,2011,30(4):768-773,6.基金项目
科技部"十一五"国家科技支撑计划重大项目(2008BADC4B04) （2008BADC4B04）
广东省科技计划项目(2008b030302044) （2008b030302044）
