锁磷剂对府河底泥磷释放的影响

王军霞; 张亚娟; 张蕾; 王亚斌; 刘存歧

doi:10.3969/j.issn.1000-1565.2018.04.009

河北大学学报(自然科学版) >

2018 , Vol. 38 >Issue 4: 396 - 402

DOI: https://doi.org/10.3969/j.issn.1000-1565.2018.04.009

锁磷剂对府河底泥磷释放的影响

王军霞 ,
张亚娟 ,
张蕾 ,
王亚斌 ,
刘存歧

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王军霞(1974—),女,河北新乐人,河北大学副教授,主要从事水域生态学研究. E-mail: wangjun_xia@sohu.com

收稿日期: 2017-12-20

网络出版日期: 2018-07-25

基金资助

国家水体污染控制与治理科技重大水专项(2012zx07203)

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Impacts of phoslock on sediment phosphorus release in Fuhe River

WANG Junxia ,
ZHANG Yajuan ,
ZHANG Lei ,
WANG Yabin ,
LIU Cunqi

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1.College of Life Science, Hebei University, Baoding 071002, China; 2.Environmental Monitoring Centre of Baoding, Baoding 071000, China

Received date: 2017-12-20

Online published: 2018-07-25

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摘要

选用美国新一代锁磷剂SAE,进行了45 、90 、180 g/m² 3种不同剂量的锁磷剂控制府河底泥磷释放的模拟实验研究.结果表明,SAE降低了府河河道底泥上覆水中的总磷(TP)、可溶性正磷酸盐(SRP)、可溶性总磷酸盐(DTP)含量,添加90 g/m²和180 g/m² SAE的抑磷率达到80%以上且效果稳定. 底泥中向上覆水释放的磷主要来自于可交换态磷(Ex-P)和铁铝结合态磷(NaOH-P),钙结合态磷(HCl-P)含量变化不显著,SAE的添加使得底泥中的磷形态发生了转变,Ex-P 和NaOH-P向HCl-P转化,使得稳定态磷占比增大,降低了沉积物磷向上覆水释放的风险.

关键词： 锁磷剂; 沉积物; 磷释放

本文引用格式

王军霞 , 张亚娟 , 张蕾 , 王亚斌 , 刘存歧 . 锁磷剂对府河底泥磷释放的影响[J]. 河北大学学报(自然科学版), 2018 , 38(4) : 396 -402 . DOI: 10.3969/j.issn.1000-1565.2018.04.009

Abstract

An experimental study on controlling the release of phosphorus from Fuhe river sediments using a new generation of phosphorus control agent SAE from US were conducted. The results showed that the concentrations of total phosphorus(TP), dissolved total phosphorus(DTP)and dissolved inorganic phosphorus(SRP)in overlying water of sediment decreased. With SAE added at 90 g/m² and 180 g/m², sediment phosphate release suppression efficiency reached 80%. Exchangeable phosphorus(Ex-P)and iron aluminum bound phosphorus(NaOH-P)were found to have the greatest potential of the phosphorus release. Calcium bound phoaphorus(HCl-P)content remained unchanged. When the phoslock SAE was added, the content of Ex-P and NaOH-P decreased, the content of HCl-P increased. Phoslock SAE changed the more easily released form of phosphorus into the more stable form. The risk of phosphorus released could be effectively reduced.

Key words： phoslock; sediment; phosphorus release

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