[1]朱政,王怡,王文怀,等.过氧化钙和海绵铁悬挂对景观水的净化效果[J].中国给水排水,2024,40(7):79-84.
　ZHUZheng,WANGYi,WANGWen-huai,et al.Performance of Calcium Peroxide and Sponge Iron Suspension for Purifying Landscape Water[J].China Water & Wastewater,2024,40(7):79-84.
点击复制

过氧化钙和海绵铁悬挂对景观水的净化效果

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第40卷 期数: 2024年第7期 页码: 79-84 栏目: 出版日期: 2024-04-01
Title:
Performance of Calcium Peroxide and Sponge Iron Suspension for Purifying Landscape Water
作者:
朱政1,2， 王怡1， 王文怀1,2， 韩雪宜1,2
（1.西安建筑科技大学 环境与市政工程学院，陕西 西安 710055；2.西安建筑科技大学 西北水资源与环境生态教育部重点实验室，陕西 西安 710055）
Author(s):
ZHU　Zheng1，2， WANG　Yi1， WANG　Wen-huai1，2， HAN　Xue-yi1，2
（1. School of Environmental and Municipal Engineering， Xi’an University of Architecture and Technology， Xi’an 710055， China； 2. Northwest China Key Laboratory of Water Resource and Environment Ecology， Xi’an University of Architecture and Technology， Xi’an 710055， China）
关键词:
景观水;  过氧化钙;  海绵铁;  填料配比;  类芬顿反应;  生态浮床
Keywords:
landscape water;  calcium peroxide;  sponge iron;  mixture ratio of filler;  Fenton-like reaction;  ecological floating bed
摘要:
针对传统生态浮床净化景观水时氮、磷营养盐及藻类和难降解有机物去除效果差的问题，通过模拟试验，探究了不同质量比的过氧化钙（CP）和海绵铁（SI）悬挂对景观水的净化效果及机理。结果表明，CP和SI组合填料对水中氮、磷营养盐有较好的去除效果，且当CP和SI的质量比为1∶8时处理效果最佳，对水中NO3--N、NO2--N和PO43--P的去除率分别可达到98.56%、100%和85.91%。同时，CP和SI溶解产生的H2O2及Fe（Ⅱ）通过类Fenton反应产生强氧化性的·OH，可有效降低水中的藻密度并转化有机物，藻密度去除率可达到83.75%，同时富里酸浓度明显降低。此外，CP和SI可强化沉淀和吸附作用对水中磷的去除，并将易释放磷转变为稳定存在的钙磷（Ca-P），减少沉积磷的再释放风险。
Abstract:
This paper investigated the performance and mechanism of calcium peroxide (CP) and sponge iron (SI) with different mass ratios for purifying landscape water through simulation tests, so as to solve the problem of poor performance of traditional ecological floating bed for removing nitrogen, phosphorus, algae and refractory organic matters from landscape water. The combination of CP and SI achieved good removal performance of nitrogen and phosphorus in water, the optimal treatment performance was obtained when the mass ratio of CP and SI was 1∶8, and the removal rates of NO3--N、NO2--N and PO43--P reached 98.56%, 100% and 85.91%, respectively. Meanwhile, ·OH with strong oxidizing ability generated in the Fenton?like reaction between H2O2 and Fe(Ⅱ) produced by dissolution of CP and SI effectively reduced the density of algae in water and disintegrated the organic matters. The removal rate of algae density reached 83.75%, and the concentration of fulvic acid was significantly reduced. In addition, CP and SI enhanced the removal of phosphorus from water by precipitation and adsorption, and transformed easily released phosphorus into stable Ca-P, which reduced the risk of re-release of deposited phosphorus.

相似文献/References:

[1]王耿,占洁,王涛,等.过氧化钙片剂联合脱氮菌剂对黑臭水体的修复效果[J].中国给水排水,2022,38(21):30.
　WANGGeng,ZHANJie,WANGTao,et al.Effect of Calcium Peroxide Tablets Combined with Nitrogen Removal Bacterial Agent on Remediation of Black and Odorous Water[J].China Water & Wastewater,2022,38(7):30.
[2]汪锋,李雨平,姜莹莹,等.过氧化钙对黑臭水体中氮转化的影响及机制[J].中国给水排水,2023,39(13):88.
　WANGFeng,LIYu-ping,JIANGYing-ying,et al.Effect of Calcium Peroxide on Nitrogen Transformation in Black and Odorous Water Body and Its Mechanism[J].China Water & Wastewater,2023,39(7):88.
[3]彭星源,肖岳冰,郑梦启,等.过氧化钙强化剩余污泥热解液脱氮效能的研究[J].中国给水排水,2024,40(3):31.
　PENGXing-yuan,XIAOYue-bing,ZHENGMeng-qi,et al.Calcium Peroxide Enhanced Nitrogen Removal Efficiency of Excess Sludge Pyrolytic Liquid[J].China Water & Wastewater,2024,40(7):31.

更新日期/Last Update: 2024-04-01