[1]冯洪波,潘增锐,盛建龙,等.利用废弃铁刨花去除污水中的磷[J].中国给水排水,2022,38(7):86-89.
　FENGHong-bo,PANZeng-rui,SHENGJian-long,et al.Reuse of Waste Iron Shavings for Phosphorus Removal from Sewage[J].China Water & Wastewater,2022,38(7):86-89.
点击复制

利用废弃铁刨花去除污水中的磷

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第38卷 期数: 2022年第7期 页码: 86-89 栏目: 出版日期: 2022-04-01
Title:
Reuse of Waste Iron Shavings for Phosphorus Removal from Sewage
作者:
冯洪波1,2， 潘增锐1,2， 盛建龙1,2， 李军1,2
（1.浙江工业大学 环境学院，浙江 杭州 310014；2.浙江省工业污染微生物控制技术重点实验室，浙江 杭州 310014）
Author(s):
FENG　Hong-bo1，2， PAN　Zeng-rui1，2， SHENG　Jian-long1，2， LI　Jun1，2
（1. College of Environment， Zhejiang University of Technology， Hangzhou 310014， China； 2. Zhejiang Province Key Laboratory of Microbial Control for Industrial Pollution Technology， Hangzhou 310014， China）
关键词:
除磷;  铁刨花;  微电解;  污水
Keywords:
phosphorus removal;  iron shaving;  micro-electrolysis;  sewage
摘要:
采用废弃铁刨花作为填料去除污水中的磷酸盐，以解决污水处理出水TP浓度不达标的问题。当铁刨花填料试验系统的水力停留时间（HRT）为2.8 h时，在初始运行阶段（20 d）TP去除率超过90%；运行50 d内，TP去除率均在85%以上。单位质量铁刨花对TP的平均去除速率为70 mg/（kg·d）。通过气水冲洗可去除填料表面的沉积物，维持除磷效果，酸洗则可解决长期运行中填料表面沉积问题。通过对沉积物进行XRD和XRF分析，推断铁刨花的除磷机理为：在铁碳微电解作用和氧化作用下生成FePO4沉淀，同时也生成了具有较大比表面积的FeOOH以促进磷的吸附，从而达到高效除磷效果。
Abstract:
Waste iron shavings were reused as fillers to remove phosphate in sewage to solve the problem of effluent TP exceeding the discharge standard in sewage treatment plants. When the hydraulic retention time (HRT) of the iron shaving filter system was 2.8 h, the TP removal rate was over 90% at the initial operation stage (20 days) and over 85% in 50 days of operation. The average removal efficiency of TP by iron shavings was 70 mg/(kg·d). Air-water washing could remove the surface sediments and maintain the phosphorus removal efficiency. Acid cleaning could remove almost all sediments on the surface of the fillers in long?term operation. The sediments were analyzed by XRD and XRF, and the TP removal mechanism by iron shavings was inferred as follows: FePO4 precipitation was generated through iron-carbon micro-electrolysis and oxidation, and FeOOH with large specific surface area was also generated to promote phosphorus adsorption, thus achieving efficient phosphorus removal.

相似文献/References:

[1]谢冬冬,冯洪波,潘增锐,等.碳酸钙和铁碳复合填料去除农村生活污水中的磷[J].中国给水排水,2020,36(7):93.
[2]王刚,苗瑞鹏,张振冲,等.生物转盘内部投加PAC化学除磷效果研究[J].中国给水排水,2020,36(13):50.
　WANG Gang,MIAO Rui-peng,ZHANG Zhen-chong,et al. Chemical Phosphorus Removal Efficiency of Rotating Biological Contactor with Addition of Polyaluminium Chloride [J].China Water & Wastewater,2020,36(7):50.
[3]张彩云,张朋川,袁璐璐,等.超高标准除磷的纳滤再生水工艺设计及工程验证[J].中国给水排水,2021,37(10):116.
　ZHANG Cai-yun,ZHANG Peng-chuan,YUAN Lu-lu,et al.Design and Engineering Verification of Nanofiltration Process for Super High Standard Phosphorous Removal in Wastewater Reclamation[J].China Water & Wastewater,2021,37(7):116.
[4]温关常,曾祥专,陈晋,等.新型除磷材料在CASS工艺污水处理厂的应用实践[J].中国给水排水,2021,37(15):51.
　WEN Guan-chang,ZENG Xiang-zhuan,CHEN Jin,et al.Application of New Phosphorus Removal Material in Wastewater Treatment Plant Using CASS Process[J].China Water & Wastewater,2021,37(7):51.
[5]吕极腾,吴淑云,刘璐文,等.耦合铁刨花和丝瓜络的复合填料滤池脱氮除磷效能[J].中国给水排水,2023,39(19):89.
　LüJi-teng,WUShu-yun,LIULu-wen,et al.Performance of Filter Packed with Composite Media Consisting of Iron Shavings Coupled with Loofah for Nitrogen and Phosphorus Removal[J].China Water & Wastewater,2023,39(7):89.

更新日期/Last Update: 2022-04-01