基于固定化载体材料海绵铁净化微污染河水特性研究

doi:10.16085/j.issn.1000-6613.2017-1554

化工进展 ›› 2018, Vol. 37 ›› Issue (05): 1999-2009.DOI: 10.16085/j.issn.1000-6613.2017-1554

基于固定化载体材料海绵铁净化微污染河水特性研究

万琼¹, 吴仪^1,2, 王信³, 吴英海⁴, 魏东洋², 贺涛², 姜琦⁵

1 西安科技大学建筑与土木工程学院, 陕西西安 710054;
2 环境保护部华南环境科学研究所, 广东广州 510655;
3 中煤科工集团北京华宇工程有限公司, 北京 100120;
4 大连海洋大学海洋与土木工程学院, 辽宁大连 116023;
5 中日友好环境保护中心, 北京 100029

收稿日期:2017-07-26 修回日期:2017-12-11 出版日期:2018-05-05 发布日期:2018-05-05
通讯作者: 姜琦,高级工程师。
作者简介:万琼(1977-),女,博士,副教授,主要从事污水处理方面的研究。E-mail:395812077@qq.com。
基金资助:
国家水体污染控制与治理科技重大专项（2015ZX07204-002）、广东省自然科学基金（2016A030313021）及中央级公益性科研院所基本科研业务专项（PM-ZX021-201510-002）。

Study on the characteristics of the micro-pollution river purified by the immobilized carrier filler sponge iron

WAN Qiong¹, WU Yi^1,2, WANG Xin³, WU Yinghai⁴, WEI Dongyang², HE Tao², JIANG Qi⁵

1 School of Architecture and Civil Engineering, Xi'an University of Science and Technology, Xi'an 710054, Shaanxi, China;
2 South China Institute of Environmental Sciences, Guangzhou 510655, Guangdong, China;
3 China Coal Technology Engineering Group, Beijing Huayu Engineering Co., Ltd., Beijing 100120, China;
4 School of Ocean and Civil Engineering, Dalian Ocean University, Dalian 116023, Liaoning, China;
5 Sino-Japanese Friendship Center for Environmental Protection, Beijing 100029, China

Received:2017-07-26 Revised:2017-12-11 Online:2018-05-05 Published:2018-05-05

摘要/Abstract

摘要： 为城市内河受污水体原位净化提供科学、有效的技术支持，本文采用电镜SEM、XRD和EDS表征方法，分析了新型填料海绵铁的结构特征和主要成分，并通过单因素试验探讨了海绵铁对总磷的吸附去除效果，最后利用自行设计的以海绵铁为填料的曝气生物滤池（BAF）进行效果试验。结果表明：①海绵铁的物相以Fe为主，同时存在Fe₂O₃、Fe₃O₄、Fe₂CO₃和Fe₃C（其中Fe、C、O含量分别为58.79%、21.85%、19.36%），说明了海绵铁具有较强的还原性，为高效脱氮提供了还原电子；②温度对海绵铁的吸附去除效果几乎没有影响，P浓度越高吸附量越大，当P浓度为10mg/L时，海绵铁投加量的多少不影响去除率，P浓度大于10mg/L时，随着海绵铁投加量的增加去除率逐渐上升，pH越低越有利于海绵铁对P的吸附；③BAF反应器内，模拟自然净化状态不进行曝气时，出水水质严重恶化，进行反冲洗后重新进行曝气，去除率上升COD、NH⁴⁺-N、TN和TP平均去除率分别升高11%、71%、31%和4%，但经过长期的连续运行反应器去除效果稍有降低，如较生物挂膜阶段同样6h期间COD、TN和TP分别降低5%、4%和18%；④海绵铁填料特殊的表面上形成了独特的生物群落，生物多样性高，反应器内环境DO越高，物种群落结构越丰富，多样性越高，同时说明海绵铁对污染物的去除是吸附和微生物的共同作用。

关键词: 城市内河, 海绵铁, 载体, 吸附(作用), 生物膜, 生物多样性

Abstract: For the city river in situ purification of sewage to provide scientific and effective technical support,the SEM,XRD and EDS characterization methods were used,the structural characteristics and main components of new filler sponge iron were analyzed,and the effect of sponge iron on total phosphorus adsorption was studied by single factor experiment. Finally,the self-designed BAF (aeration biofilter)with sponge iron as filler was experimented. The results is shown below. ① The sponge iron phase is mainly Fe,at the same time there are Fe₂O₃,Fe₃O₄,Fe₂CO₃ and Fe₃C (among them,Fe,C and O content were 58.79%,21.85%,19.36%). This explained the sponge iron has a strong reductive,providing reductive electrons for efficient denitrification. ②The temperature of the sponge iron adsorption removal effect has little effect,P concentration higher the greater the amount of adsorption,when the P concentration of 10mg/L,the sponge iron dosage does not affect the removal rate,when the concentration of P was more than 10mg/L,the removal rate increased with the increase of sponge iron dosage,the lower the pH,the more favorable the sponge iron adsorption P. ③In the BAF reactor,simulation of natural purification state,without aeration,water quality serious deterioration,after the reverse rinse,the aeration was resumed,the removal rate increased (COD,NH⁴⁺-N,TN and TP were increased by 11%,71%,31% and 4%),but after a long period of continuous operation,the reactor removal effect was slightly reduced,COD and TN were reduced by 5%,4% and 18%,respectively,during the same 6h period. ④ Sponge iron filler on the surface of the formation of a unique biological community,high biological diversity,and the higher the DO in the reactor,the richer the species community structure,the higher the diversity,while the sponge iron on the removal of pollutants is adsorbed and microbial common influence.

Key words: urban river, sponge iron, support, adsorption, biofilm, biological diversity

中图分类号:

X522

万琼, 吴仪, 王信, 吴英海, 魏东洋, 贺涛, 姜琦. 基于固定化载体材料海绵铁净化微污染河水特性研究[J]. 化工进展, 2018, 37(05): 1999-2009.

WAN Qiong, WU Yi, WANG Xin, WU Yinghai, WEI Dongyang, HE Tao, JIANG Qi. Study on the characteristics of the micro-pollution river purified by the immobilized carrier filler sponge iron[J]. Chemical Industry and Engineering Progress, 2018, 37(05): 1999-2009.

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基于固定化载体材料海绵铁净化微污染河水特性研究

Study on the characteristics of the micro-pollution river purified by the immobilized carrier filler sponge iron

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