铁磁性氧化镁生物炭对玉米加工废水中氮磷的回收效果

梁嘉琪; 吕媛; 陆茵; 王湘徽; 郑敏; 徐康宁

doi:10.13205/j.hjgc.202009015

铁磁性氧化镁生物炭对玉米加工废水中氮磷的回收效果

doi: 10.13205/j.hjgc.202009015

梁嘉琪¹,
吕媛¹,
陆茵²,
王湘徽³,
郑敏⁴,
徐康宁^1, ,

1. 北京林业大学水体污染源控制技术北京市重点实验室, 北京 100083;
2. 北京国环清华环境工程设计研究院有限公司, 北京 100084;
3. 上海康恒环境股份有限公司, 上海 201703;
4. 昆士兰大学水管理高等研究中心, 昆士兰 4072, 澳大利亚

基金项目:

中央高校基本科研业务费（2017ZY33）；大学生创新创业训练计划项目（S201810022106）；国家水体污染控制与治理科技重大专项（2017ZX07102-001）。

详细信息

作者简介:
梁嘉琪(1998-),女,本科生,主要研究方向为污水资源化处理技术。liangjiaqi_ivy@163.com

通讯作者:
徐康宁(1983-),男,博士,副教授,主要研究方向为污水资源化处理技术。xukangning@bjfu.edu.cn

计量
- 文章访问数: 102
- HTML全文浏览量: 13
- PDF下载量: 8
- 被引次数: 0
出版历程
- 收稿日期: 2019-08-12

RECOVERY OF AMMONIUM AND PHOSPHATE FROM CORN PROCESSING WASTEWATER USING MAGNETIC MgO-BIOCHAR

1. Beijing Key Lab for Source Control Technology of Water Pollution, Beijing Forestry University, Beijing 100083, China;
2. Beijing Guohuan Environmental Engineering Design & Research Institute Co., Ltd, Beijing 100084, China;
3. Shanghai SUS Environment Co., Ltd, Shanghai 201703, China;
4. Advanced Water Management Centre, the University of Queensland, St Lucia 4072, Australia

摘要

摘要: 试验制备了林木废弃物铁磁性氧化镁生物炭（铁镁炭），并探索其对玉米加工废水中氮、磷的同步去除性能。铁镁炭去除氮、磷反应在120 h内可达到平衡；氮、磷的最大理论吸附量分别为50.4，338.9 mg/g。生物炭表征结果表明：在铁镁炭表面生成了镁氧化物及铁氧化物，氨氮回收主要是化学吸附作用，而磷回收则决定于化学吸附与化学沉淀的共同作用。富集氮磷后的铁镁炭可作为氮磷缓释肥加以利用，且不存在显著的铁释放。
- 磁性 /
- 氧化镁生物炭 /
- 氨氮 /
- 磷酸盐 /
- 热解
Abstract: This study investigated the recovery of ammonium and phosphate from corn processing wastewater using magnetic MgO-biochar yielded from wood waste. Kinetics property was studied and the process reached equilibrium within 120 h. The maximum adsorption capacities of ammonium-nitrogen and phosphorus by the magnetic MgO-biochar reached 50.4 mg/g and 338.9 mg/g, respectively. According to the characterization, magnesium and iron oxides formed on the biochar surface. Chemisorption was the dominating mechanism for the recovery of ammonium, while chemisorption and chemical precipitation both responded for the recovery of phosphate using the magnetic MgO-biochar. The magnetic MgO-biochar enriched with ammonium and phosphate was a slow release fertilizer of ammonium and phosphate, while no obvious release of ferric ions was observed.
- magnetic /
- MgO-biochar /
- ammonium /
- phosphate /
- pyrolysis

HTML全文

参考文献(12)

曲久辉. 建设面向未来的中国污水处理概念厂[N]. 中国环境报, 2014-01-07:010.

祝天宇, 卢泽玲, 刘月娥, 等. 镁改性生物炭制备条件对其氮、磷去除性能的影响[J]. 环境工程, 2018, 36(1):37-41.

孔丝纺, 姚兴成, 张江勇, 等. 生物质炭的特性及其应用的研究进展[J]. 生态环境学报, 2015,24(4):716-723.

黄秋合, 刘月娥, 卢泽玲, 等. 基于尿液废水中磷钾同步回收的镁改性生物炭制备条件优化[J]. 环境工程, 2017, 35(增刊1):271-275.

曹玮. 磁性生物炭去除废水中Pb²⁺、Cd²⁺的效果及机制初探[D]. 长沙:中南林业科技大学, 2016.

GERENTE C, LEE V, LE CLOIREC P, et al. Application of chitosan for the removal of metals from wastewaters by adsorption-mechanisms and models review[J]. Critical Reviews in Environmental Science and Technology, 2007, 37(1):41-127.

VLADIMIR S, DMITRY S, IGOR A P, et al. Physical and chemical properties of magnetite and magnetite-polymer nanoparticles and their colloidal dispersions[J]. Journal of Colloid and Interface Science, 1999, 212(1):49-57.

YAO Y, GAO B, INYANG M, et al. Removal of phosphate from aqueous solution by biochar derived from anaerobically digested sugar beet tailings[J]. Journal of Hazardous Materials, 2011, 190(1/2/3):501-507.

LI R H, WANG J J, ZHOU B Y, et al. Simultaneous capture removal of phosphate, ammonium and organic substances by MgO impregnated biochar and its potential use in swine wastewater treatment[J]. Journal of Cleaner Production, 2017, 147:96-107.

万霞, 梅昌艮, 何俐臻, 等. 磁性生物炭的制备、表征及对磷的吸附特性[J]. 安全与环境学报, 2017, 17(3):1069-1075.

XU K N, LIN F Y, DOU X M, et al. Recovery of ammonium and phosphate from urine as value-added fertilizer using wood waste biochar loaded with magnesium oxides[J]. Journal of Cleaner Production, 2018, 187:205-214.

NGUYEN B, LEHMANN J, KINYANGI J, et al. Long-term black carbon dynamics in cultivated soil[J]. Biogeochemistry, 2009, 92(1/2):163-176.

施引文献

资源附件(0)

访问统计