[1]罗铿俊,杨舒涵,刘晓斌,等.高压气体流化陶粒耦合陶瓷膜反应器除锰[J].中国给水排水,2024,40(21):27-33.
　LUOKeng-jun,YANGShu-han,LIUXiao-bin,et al.Manganese Removal Using High?pressure Gas Fluidized Ceramsite Coupled with Ceramic Membrane Reactor[J].China Water & Wastewater,2024,40(21):27-33.
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高压气体流化陶粒耦合陶瓷膜反应器除锰

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第40卷 期数: 2024年第21期 页码: 27-33 栏目: 出版日期: 2024-11-01
Title:
Manganese Removal Using High?pressure Gas Fluidized Ceramsite Coupled with Ceramic Membrane Reactor
作者:
罗铿俊， 杨舒涵， 刘晓斌， 王晓铠， 张心意， 宋伟， 杜星
（广东工业大学 土木与交通工程学院，广东 广州 510006）
Author(s):
LUO　Keng-jun， YANG　Shu-han， LIU　Xiao-bin， WANG　Xiao-kai， ZHANG　Xin-yi， SONG　Wei， DU　Xing
（School of Civil and Transportation Engineering， Guangdong University of Technology， Guangzhou 510006， China）
关键词:
陶粒;  水钠锰矿;  陶瓷膜;  高压气体流化;  除锰
Keywords:
ceramsite;  birnessite;  ceramic membrane;  high-pressure gas fluidization;  manganese removal
摘要:
地下水中过量的锰离子会影响饮用水口感，更会对人体健康产生危害。开发了高压气体流化陶粒耦合重力式驱动陶瓷膜一体化设备，通过前期制备的锰氧化物、初期快速富集的锰氧化菌以及水钠锰矿自催化氧化的协同作用，实现了高效、稳定除锰。同时，采取间歇式高压气体流化陶粒剥离膜面污染层以控制膜污染，从而增强设备净水效能。该系统具有良好的除锰性能与产水效能，在进水锰离子浓度约为0.5 mg/L的条件下，出水锰离子浓度可以降低至0.01 mg/L，整体去除率高达98%。运行后期，出水锰离子浓度保持稳定（<0.1 mg/L），并且膜通量稳定在20 L/（m2·h）左右。 运行结束后，对反应器内的功能层样品进行XPS、XRD、SEM和红外分析，发现反应器内存在水钠锰矿型锰氧化物，这是系统高效除锰的关键所在。
Abstract:
Excessive levels of manganese ions in groundwater can affect the taste of drinking water and pose risks to human health. This work developed an integrated system for manganese removal utilizing high-pressure gas fluidized ceramsite coupled with a gravity-driven ceramic membrane. Specifically, the system achieved efficient and stable manganese removal based on the synergistic effect of pre-prepared manganese oxides, the rapid initial enrichment of manganese-oxidizing bacteria, and the great autocatalytic oxidation capacity of birnessite. Intermittent high-pressure gas aeration was employed for fluidifying the ceramsite to peel off the fouling layer on the membrane surface. Thereby, the water purification performance of the integrated device also could be enhanced with the membrane fouling mitigating.The system exhibited excellent manganese removal performance and water production capability. With an influent manganese concentration of 0.5 mg/L, the effluent manganese concentration could be reduced to 0.01 mg/L with the removal rate of 98%. In the stable stage, the effluent manganese concentration was maintained at a stable level (<0.1 mg/L), with the membrane flux consistently at 20 L/(m2·h). After the experiment, XPS, XRD, SEM, and infrared analysis were conducted on samples from the functional layer within the reactor, confirming that the presence of birnessite was critical for manganese removal in this system.

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更新日期/Last Update: 2024-11-01