Research on the Application of Membrane Absorption for the High Concentration Ammonia Wastewater Treatment
Membrane absorption (MA) can rapidly remove ammonia from wastewaters and the product can be re-used or recoveried. The results show that MA process is applied effectively in removing high concentration ammonia in molecule sieve production and coking and chemical plants wastewater. Under the raw water temperature, using 1M sulfuric acid as absorption solution, ammonia in the feed solutions can reduce from 8,000 mg/L to less than 15 mg/L in 30 min if ph not less than 12.00.However, osmotic distillation (OD) is found to be a coupled process in MA, which will affect MA process significantly. We investigate the inhibitory method of OD and find that the high concentration salt in feed solution and using lower concentration absorption solution can efficiently decrease the influence of OD on MA. And at the same time the membrane fouling is not a serious problem in the MA process for molecule sieve production wastewater.
Membrane absorption overall mass transfer coefficient high concentration ammonia wastewater osmotic distillation membrane fouling
Guo Yujie Li Guoting Zhao Qingling Zhao Changwei Loan Zhaokun
Institute of Environmental and Municipal Engineering, North -China University of Water Conservancy a State Key Lab of Environmental Aqueous Chemistry, Research Center for Eco - Environmental Sciences,
国际会议
郑州
英文
600-607
2009-10-20（万方平台首次上网日期，不代表论文的发表时间）