[1]張存款,丁文川,曾曉嵐,等.優(yōu)化電化學(xué)MAP法高效去除垃圾滲濾液中的氨氮[J].中國給水排水,2022,38(9):25-32.
ZHANGCun-kuan,DINGWen-chuan,ZENGXiao-lan,et al.Optimized Electrochemical Magnesium Ammonium Phosphate Method for Efficient Ammonia Nitrogen Removal from Landfill Leachate[J].China Water & Wastewater,2022,38(9):25-32.
點(diǎn)擊復(fù)制
ZHANGCun-kuan,DINGWen-chuan,ZENGXiao-lan,et al.Optimized Electrochemical Magnesium Ammonium Phosphate Method for Efficient Ammonia Nitrogen Removal from Landfill Leachate[J].China Water & Wastewater,2022,38(9):25-32.
優(yōu)化電化學(xué)MAP法高效去除垃圾滲濾液中的氨氮
中國給水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第38卷 期數(shù): 2022年第9期 頁碼: 25-32 欄目: 出版日期: 2022-05-01
- Title:
- Optimized Electrochemical Magnesium Ammonium Phosphate Method for Efficient Ammonia Nitrogen Removal from Landfill Leachate
- Keywords:
- electrochemistry; magnesium ammonium phosphate (MAP) precipitate; landfill leachate; ammonia nitrogen; pH
- 摘要:
- 針對垃圾填埋場滲濾液中的高濃度氨氮，研究了基于電化學(xué)磷酸銨鎂（MAP）法提高氨氮去除率與產(chǎn)物純度的優(yōu)化措施。結(jié)果表明，電化學(xué)MAP反應(yīng)體系的氨氮去除率隨初始pH的升高而降低；電化學(xué)MAP法可以在低pH條件下生成MAP沉淀，其中當(dāng)pH在6.5~8.5之間時(shí)MAP生成速率最大且純度高，這與傳統(tǒng)MAP法的最佳pH為8~10有較大區(qū)別。采用分批投加KH2PO4可以提高整個(gè)體系中MAP的平均生成速率。當(dāng)處理實(shí)際填埋場垃圾滲濾液時(shí)，電化學(xué)MAP法相比傳統(tǒng)MAP法具有更高的氨氮去除率、較低的磷殘余濃度以及更高的MAP純度。
- Abstract:
- The optimized measures for improving ammonia nitrogen removal efficiency and product purity based on electrochemical magnesium ammonium phosphate (MAP) method were investigated to remove high ammonia nitrogen from landfill leachate. The removal efficiency of ammonia nitrogen in the electrochemical MAP reaction system decreased with the increase of initial pH. The electrochemical MAP method could generate MAP precipitate at low pH, and the MAP precipitate had the highest generation rate and high purity when the pH was between 6.5 and 8.5. The results was quite different from traditional MAP method at the optimal pH in the range of 8-10. The batch addition of KH2PO4 improved the average MAP generation rate in the whole system. When treating real landfill leachate, the electrochemical MAP method had higher ammonia nitrogen removal efficiency, lower phosphorus residual concentration and higher MAP purity than the traditional MAP method.
相似文獻(xiàn)/References:
[1]郭浩,田一梅,張海亞,等.鐵質(zhì)金屬供水管道的內(nèi)腐蝕研究進(jìn)展[J].中國給水排水,2020,36(12):70.
GUO Hao,TIAN Yi-mei,ZHANG Hai-ya,et al.Research Progress on Internal Corrosion of Iron-metal Pipes of Water Distribution Systems[J].China Water & Wastewater,2020,36(9):70.
更新日期/Last Update: 2022-05-01
