以轻烧镁粉为镁源的MAP沉淀法去除废水中氨氮研究
Study on MAP Precipitation Method using Lightly Burned Magnesium Powder as Magnesium Source to Remove Ammonia Nitrogen from Wastewater
黄骏攀 1孙雪倩 2王楠3
作者信息
- 1. 攀枝花市仁和生态环境监测站, 四川 攀枝花 617061
- 2. 攀枝花市米易生态环境监测站, 四川 攀枝花 617061
- 3. 四川劳研科技有限公司, 四川 攀枝花 617061
- 折叠
摘要
向氨氮废水中投加磷源和镁源可以形成磷酸铵镁(MAP)沉淀.本实验采用轻烧镁粉作为MAP法的镁源,考察了磷源与镁源配比、反应时间等因素对氨氮去除率的影响,确定了最佳反应条件.实验结果表明:当N、Mg、P物质的量比为1∶8∶1(将轻烧镁粉看作纯氧化镁计算)、反应时间为 50 min时,氨氮去除率达到90%.
Abstract
Adding phosphorus and magnesium sources to ammonia nitrogen wastewater can form ammonium magnesium phosphate(MAP)precipitation.This experiment used lightly burned magnesium powder as the magnesium source for MAP method,and investigated the effects of factors such as the ratio of phosphorus and magnesium sources,reaction time,etc.on the ammonia nitrogen removal rate,and determined the optimal reaction conditions.The experimental results show that when the ratio of N,Mg,and P substances is 1:8:1(calculated as pure magnesium oxide)and the reaction time is 50 minutes,the ammonia nitrogen removal rate reaches 90%.
关键词
轻烧镁粉/氨氮/磷酸铵镁沉淀Key words
lightly burned magnesium powder/ammonia nitrogen/magnesium ammonium phosphate precipitation引用本文复制引用
出版年
2024
NETL
NSTL
万方数据