复合钙盐法回收高浓度含磷制药废水中的磷  

Recovery of phosphorus from pharmaceutical industry wastewater with composite calcium

作　　者：林冲 李娜[1] 柯爌琼 杜冬云[1] 

机构地区：[1]中南民族大学环境科学与工程研究所,中南民族大学化学与材料科学学院/催化材料科学湖北省重点实验室,湖北武汉430074

出　　处：《化工学报》2009年第9期2346-2350,共5页CIESC Journal

基　　金：武汉市攻关课题项目(200860423199);湖北省攻关课题项目(2008BCB205)

摘　　要：A new method of recovery of phosphorus from high concentration phosphorous-containing pharmaceutical industry wastewater with composite calcium was proposed.It was found that the efficiency of phosphorous removal from the wastewater was affected by dosage of composite calcium,pH of solution,and the mole ratio of calcium chloride and calcium oxide in the composite calcium.The production of phosphorus residue,the available phosphorus(calculated as P2O5)and N,N-dimethylformaide(DMF)in the phosphorus residue were also determined.The content of phosphorus in the wastewater could be reduced from 31000 mg·L-1 to less than 0.5 mg·L-1,and the content of the available phosphorus in the phosphorous residue was about 18%,approaching the national standard for superior grade product of phosphorus fertilizer.Furthermore,the poisonous material DMF was not detectable in the residue by GC-MS and spectra photometry.A new method of recovery of phosphorus from high concentration phosphorous-containing pharmaceutical industry wastewater with composite calcium was proposed.It was found that the efficiency of phosphorous removal from the wastewater was affected by dosage of composite calcium,pH of solution,and the mole ratio of calcium chloride and calcium oxide in the composite calcium.The production of phosphorus residue,the available phosphorus（calculated as P2O5）and N,N-dimethylformaide（DMF）in the phosphorus residue were also determined. The content of phosphorus in the wastewater could be reduced from 31000 mg · L%-1 to less than 0.5 mg · L^- 1, and the content of the available phosphorus in the phosphorous residue was about 18%, approaching the national standard for superior grade product of phosphorus fertilizer. Furthermore, the poisonous material DMF was not detectable in the residue by GCMS and spectra photometry.

关 键 词：含磷废水 复合钙盐 磷肥 DMF 

分 类 号：X7[环境科学与工程—环境工程]