钙铝黄长石陶粒改性及处理含锰废水效能

秦娟; 杨尚文; 鲍雨晴; 吴妤婕; 蔡琳; 文倩

doi:10.13205/j.hjgc.202208006

钙铝黄长石陶粒改性及处理含锰废水效能

doi: 10.13205/j.hjgc.202208006

南通大学化学化工学院南通市智能与新能源材料及器件重点实验室, 江苏南通 226019

基金项目:

江苏省自然科学基金青年项目(BK20180955)

2021年南通大学大学生创新训练计划项目(2021104)

国家自然科学基金青年项目(51802162)

详细信息

通讯作者:
秦娟(1988-),女,博士,讲师,主要研究方向为固体废弃物资源化利用、废水处理。qinjuan880816@ntu.edu.cn

计量
- 文章访问数: 181
- HTML全文浏览量: 40
- PDF下载量: 5
- 被引次数: 0
出版历程
- 收稿日期: 2021-10-07
- 刊出日期: 2022-11-08

MODIFICATION OF GEHLENITE CERAMSITE AND ITS TREATMENT EFFICIENCY ON MANGANESE-CONTAINING WASTEWATER

Nantong Key Laboratory of Intelligent and New Energy Materials, School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China

摘要

摘要: 以工业固体废弃物造纸白泥和粉煤灰为原料,通过煅烧制备钙铝黄长石陶粒,再经NaOH溶液水热反应法改性,用于含锰废水的吸附处理。利用X射线衍射仪(XRD)和扫描电子显微镜(SEM)等方法对改性前后的陶粒进行表征,探讨陶粒水热改性机制。检测不同NaOH溶液浓度以及水热反应温度改性后陶粒的静态吸附除锰效能,并与改性前陶粒对比,确定最佳水热改性条件,并探索改性陶粒吸附除锰机理。结果表明:改性后陶粒的主矿物相仍为钙铝黄长石,但部分Ca元素被活化,生成新物相Ca(OH)₂,提高了陶粒本身碱性,继而使锰去除率显著提高,吸附平衡时间明显缩短。4,3 mol/L的NaOH溶液浓度以及160 ℃的水热温度分别为2种陶粒的最佳改性条件;改性后陶粒除锰可以在10~15 min内达到吸附平衡,锰去除率接近100%。吸附过程中,Mn²⁺与OH^-生成白色Mn(OH)₂沉淀,然后被氧化为黑褐色的MnO(OH)₂,最终被陶粒表面均匀吸附,实现了固体废弃物资源化利用,达到以废治废的目的。
- 钙铝黄长石 /
- 水热改性 /
- NaOH浓度 /
- 温度 /
- 除锰
Abstract: Gehlenite ceramsites were prepared through calcination, with industrial solid wastes lime mud and fly ash as the raw materials. Then, the ceramsites were modified by hydrothermal reaction of NaOH solution and finally applied to the adsorption of manganese-containing wastewater. The ceramsites before and after the modification were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM), to explore the modification mechanism. Under different modification conditions, such as the concentration of NaOH solution and the temperature of the hydrothermal reaction, the adsorption efficiency of Mn²⁺ by the ceramsites was detected. Thus, the optimum modification conditions and the adsorption mechanism of Mn²⁺ were determined. The results showed that after modification, the main mineral phase of the ceramsites was still gehlenite, but a new phase, Ca(OH)₂ was generated because of the activation of the partial calcium element. Accordingly, the alkalinity of the ceramsites was increased, significantly improving the removal rate of Mn²⁺ and shortening the adsorption equilibrium time. The concentrations of NaOH solution of 4, 3 mol/L and the temperature of 160 ℃ were the optimum modification conditions of the two ceramsites, respectively. For the adsorption of Mn²⁺ by the modified ceramsites, the adsorption equilibrium was achieved at 10~15 min, and the removal rate was close to 100%. During the adsorption process, Mn²⁺ in solution was reacted with OH^- released from the ceramsites to form white Mn(OH)₂ and then quickly oxidized to brown MnO(OH)₂, which was evenly adsorbed on the surface of the ceramsites. This technology not only realized the utilization of solid wastes, but also achieved the purpose of Treating Waste with Waste.
- gehlenite /
- hydrothermal modification /
- concentration of NaOH /
- temperature /
- Mn²⁺ removal

HTML全文

参考文献(36)

[1]	AN Q,ZHANG C Y,ZHAO B,et al.Insight into synergies between Acinetobacter sp.AL-6 and pomelo peel biochar in a hybrid process for highly efficient manganese removal[J].The Science of the Total Environment,2021,793:148609.
[2]	朱文雪,陈莹莹,张彬,等.水中Mn(Ⅲ)介导的头孢哌酮钠转化机制[J].环境化学,2020,39(8):2206-2216.
[3]	BEUKES N J,SWINDELL E,WABO H.Manganese deposits of Africa[J].Episodes,2016,39(2):285.
[4]	TAN S G,GAO C H,YUAN H,et al.An antiperovskite compound with multifunctional properties:Mn₃PdN[J].Journal of Solid State Chemistry,2021,302:122389.
[5]	ALI Z,SHAFIQ M,ASADABADI S J,et al.Magneto-electronic studies of anti-perovskites NiNMn₃ and ZnNMn₃[J].Computational Materials ence,2014,81(2):141-145.
[6]	AHSAN M Z,ISLAM M A,KHAN F A.Effects of sintering temperature on ac conductivity,permittivity,and permeability of manganese doped cobalt ferrite nanoparticles[J].Results in Physics,2020,19:103402.
[7]	DENG Y L,SHU J C,LEI T Y,et al.A green method for Mn²⁺ and NH₄⁺-N removal in electrolytic manganese residue leachate by electric field and phosphorus ore flotation tailings[J].Separation and Purification Technology,2021,270(4):118820.
[8]	DROKE E A,LOERCH S C.Effects of parenteral selenium and vitamin E on performance,health and humoral immune response of steers new to the feedlot environment[J].Journal of Animal Science,1989,67(5):1350-1359.
[9]	SHU J C,WU H P,CHEN M J,et al.Fractional removal of manganese and ammonia nitrogen from electrolytic metal manganese residue leachate using carbonate and struvite precipitation[J].Water Research,2018,153(4):229-238.
[10]	白凤明,黄廷林,程亚.无氧条件下复合锰氧化膜去除地下水中高浓度锰[J].环境工程学报,2019,13(4):878-884.
[11]	马文婕,陈天虎,陈冬,等.δ-MnO₂/沸石纳米复合材料同时去除地下水中的铁锰氨氮[J].环境科学,2019,40(10):4553-4561.
[12]	唐章程,黄廷林,胡瑞柱,等.结晶造粒流化床同步去除水中铁、锰及硬度的中试实验[J].环境工程学报,2018,12(11):3090-3098.
[13]	GONG C H,WANG B,LIU B,et al.Facile in situ synthesis of nickel/cellulose nanocomposites:mechanisms,properties and perspectives[J].Cellulose,2014,21(6):4359-4368.
[14]	BAO X,WU Q L,TIAN J Y,et al.Fouling mechanism of forward osmosis membrane in domestic wastewater concentration:role of substrate structures[J].Chemical Engineering Journal,2019,370:262-273.
[15]	李静,鲍东杰,王向宁,等.磁性纳米复合吸附剂PFM对铜的吸附性能与吸附机理研究[J].环境工程,2020,38(5):84-88.
[16]	刘光明,卫文豪,杨开亮,等.水体中Mn(Ⅱ)的去除——氧化结合吸附法[J].上海海事大学学报,2020,41(2):123-126.
[17]	唐朝春,陈惠民,刘名,等.ZnAl和MgAl水滑石吸附废水中磷的研究进展[J].化工进展,2015,34(1):245-251.
[18]	魏婷,牛丽君,张光明,等.三元复合吸附剂Ce-Zr-Zn对水中低浓度磷的吸附性能及其机理[J].环境工程学报,2020,14(11):2938-2945.
[19]	曾辉平,于亚萍,吕赛赛,等.基于铁锰泥的除砷颗粒吸附剂制备及其比较[J].环境科学,2019,40(11):5002-5008.
[20]	ZENG Q,WANG Y X,XIE S H,et al.Drinking-water disinfection by-products and semen quality:a cross-sectional study in china[J].Environ Health Perspect,2014,122(7):741-746.
[21]	李鹏飞,毛林清,陈胡星.陶粒对铬的固化及其机制研究[J].环境工程,2018,36(11):118-122.
[22]	向洋,张翔凌,雷雨,等.不同合成条件对ZnAl-LDHs覆膜改性生物陶粒除磷效果的影响[J].环境科学,2018,39(5):2184-2194.
[23]	赵媛媛,刘丹妮,戴友芝,等.给水厂残泥免烧陶粒对Pb与Cd的吸附特征[J].环境科学研究,2019,32(7):1250-1258.
[24]	黄志华,杨佘维,汪永红,等.基于新型陶粒催化剂的H₂O₂/O₃多相催化氧化体系降解刚果红的研究[J].环境工程,2016,34(7):82-87.
[25]	HU X F,JARNERUD T,KARASEV A,et al.Utilization of fly ash and waste lime from pulp and paper mills in the argon oxygen decarburization process[J].Journal of Cleaner Production,2020,261:121182.
[26]	彭晓月,宋菊林.造纸厂碱回收白泥原位改性固化处理技术[J].施工技术,2018,47(增刊4):1127-1130.
[27]	刘定平,黄俊钦,夏松.造纸白泥旋流雾化脱硫除尘一体化技术试验研究[J].工业炉,2019,41(3):11-16.
[28]	LIU J,SHI N,WANG T,et al.Significant enhancement of VOCs conversion by facile mechanochemistry coupled MnO₂ modified fly ash:mechanism and application[J].Fuel,2021,304(33):121443.
[29]	SADARANG J,NAYAK R K.Utilization of fly ash as an alternative to silica sand for green sand mould casting process[J].Journal of Manufacturing Processes,2021,68(3):1553-1561.
[30]	宋萌珠,KAEWMEE P,JO G,等.聚合物改性粉煤灰制备多孔复合材料及其性能研究[J].环境工程,2020,38(8):27-33 ,95.
[31]	QIN J,CUI C,CUI X Y,et al.Preparation and characterization of ceramsite from lime mud and coal fly ash[J].Construction and Building Materials,2015,5(oct.1):10-17.
[32]	YATONGCHAI C,THAVORNYUTIKARN B.Conversion of lime mud waste to hydroxyapatite biomaterials[J].Materials Chemistry and Physics,2021,5:124544.
[33]	ZHANG L,ZHANG L,DONG X,et al.The effect and mechanism of Si/Al ratio on microstructure of zeolite modified ceramsite derived from industrial wastes[J].Microporous and Mesoporous Materials,2021,311:110667.
[34]	MI H C,YI L S,WU Q,et al.Preparation of high-strength ceramsite from red mud,fly ash,and bentonite[J].Ceramics International,2021,47(13):18218-18229.
[35]	LI X G,WANG P Q,QIN J Y,et al.Mechanical properties of sintered ceramsite from iron ore tailings affected by two-region structure[J].Construction and Building Materials,2020,240:117919.
[36]	QIN J,YANG C M,CUI C,et al.Ca²⁺ and OH^- release of ceramsites containing anorthite and gehlenite prepared from waste lime mud[J].Journal of Environmental Sciences,2016,47(9):91-99.