释氧多孔材料抑制富营养化水体沉积物-水界面磷释放

刘茗; 邱子乐; 路阳; 王茹雪; 柏兰峰; 熊双双; 石丽; 豆鹏鹏

doi:10.13205/j.hjgc.202606010

释氧多孔材料抑制富营养化水体沉积物-水界面磷释放

doi: 10.13205/j.hjgc.202606010

1. 茅台学院资源与环境学院, 贵州遵义 564500;
2. 中国林业科学研究院生态保护与修复研究所, 北京 100091;
3. 重庆大学环境与生态学院, 重庆 400044

基金项目:

贵州省科技计划项目（黔科合基础QN［2025］296）；遵义市科技计划项目（HZ字［2024］383）；茅台学院酒产业研究院专项课题（MTXYJCY008）；茅台学院高层次人才科研启动经费项目（mygccrc［2024］010）；茅台学院高层次人才科研启动经费项目（mygccrc［2022］073）；遵义市科技计划项目（HZ字［2023］131）

详细信息

作者简介:
刘茗(1986-),女,工程师,主要研究方向为水环境治理。liuming@mtxy.edu.cn

通讯作者:
豆鹏鹏(1995-),男,助理研究员,主要研究方向为生态保护与修复研究。douppeng@163.com

计量
- 文章访问数: 10
- HTML全文浏览量: 0
- PDF下载量: 0
- 被引次数: 0
出版历程
- 收稿日期: 2026-01-20
- 录用日期: 2026-02-27
- 修回日期: 2026-02-15
- 网络出版日期: 2026-07-06

Inhibition of phosphorus release from sediment-water interface in eutrophic waters using oxygen-loaded porous materials

1. School of Resources and Environment, Moutai Institute, Zunyi 564500, China;
2. Institute of Ecological Conservation and Restoration, Chinese Academy of Forestry, Beijing 100091, China;
3. College of Environment and Ecology, Chongqing University, Chongqing 400044, China

摘要

摘要: 溶解氧（DO）是控制富营养化水体内源磷迁移的关键，针对现有增氧技术存在的能耗高、扰动沉积物等问题，亟需研究低扰动、pH稳定且不新增氮磷负荷的增氧策略及其抑磷机制。以天然富营养化水体样品为对象，开展室内模拟实验，采用微电极技术获取沉积物-水界面 DO 剖面特征，利用薄膜扩散梯度（DGT）技术解析界面铁、硫与磷的浓度及空间分布，通过连续提取分级方法定量分析沉积物不同形态磷含量变化。结果表明：覆盖释氧多孔材料后，沉积物表层DO浓度增加了6.58倍，DO穿透深度增加了1.33倍，上覆水总磷（TP）浓度降低了93.79%，沉积物间隙水磷酸盐（PO^3-₄-P）最多降低了45.75%，沉积物-水界面TP交换通量由0.0068 mg/（m²·d）变为-0.014 mg/（m²·d），完成了由磷源向磷汇的转变；沉积物中稳定的磷形态Res-P增加了5.22%，不稳定的磷形态NaHCO₃-P减少了4.48%；通过氧化还原敏感元素铁和硫的耦合作用促进了沉积物中磷的固定，降低了内源磷的释放。该释氧多孔材料通过界面DO调控抑制了内源磷释放，为不改变pH环境的富营养化水体内源磷控制相关研究提供了理论基础。
- 释氧多孔材料 /
- 沉积物-水界面 /
- 内源污染 /
- 磷 /
- 溶解氧
Abstract: Dissolved oxygen （DO） is crucial in controlling the migration of endogenous phosphorus in eutrophic waters. Current oxygenation technologies face issues such as high energy consumption and disturbance of sediments. Therefore， there is an urgent need to explore low-disturbance， pH-stable oxygenation strategies that do not introduce additional nitrogen and phosphorus loads， as well as their mechanisms for phosphorus inhibition. In this study， laboratory microcosm experiments were conducted using natural samples from eutrophic waters， DO microprofiles across the sediment-water interface were determined using microelectrodes， while diffusive gradients in thin films （DGT） were used to characterize the concentrations and spatial distributions of Fe， S， and P at the interface. In addition， a sequential extraction procedure was employed to quantify changes in different phosphorus fractions in the sediment. The results showed that after covering with the oxygen-loaded porous material， the DO concentration in the surface sediment increased by 6.58 times， the DO penetration depth increased by 1.33 times， the total phosphorus （TP） concentration in the overlying water decreased by 93.79%， and the phosphate （PO^3-₄-P） in the sediment interstitial water decreased by up to 45.75%. The sediment-water interface TP exchange flux changed from 0.0068 mg/（m²·d） to -0.014 mg/（m²·d）， shifting from a phosphorus source to a phosphorus sink. In the sediments， the stable phosphorus form （Res-P） increased by 5.22%， while the labile phosphorus form （NaHCO₃-P） decreased by 4.48%. Consequently， through coupling of redox-sensitive elements iron and sulfur， the immobilization of phosphorus in sediments was enhanced， reducing the release of endogenous phosphorus. The oxygen-loaded porous material inhibited phosphorus release from sediments by regulating interfacial dissolved oxygen， providing a theoretical basis for the scientific study of endogenous phosphorus control in eutrophic waters without altering pH conditions.
- oxygen-loaded porous material /
- sediment-water interface /
- endogenous pollution /
- phosphorus /
- dissolved oxygen

HTML全文

参考文献(42)

[1]	KANG M，PENG S，TIAN Y，et al. Effects of dissolved oxygen and nutrient loading on phosphorus fluxes at the sediment-water interface in the Hai River Estuary，China[J]. Marine Pollution Bulletin，2018，130：132-139.
[2]	HYLEN A，VELDE S J V D，KONONETS M，et al. Deep-water inflow event increases sedimentary phosphorus release on a multi-year scale[J]. Biogeosciences Discussions，2021，2021：1-27.
[3]	PAN F，GUO Z，CAI Y，et al. Remobilization and hypoxia-dependent migration of phosphorus at the coastal sediment-water interface[J]. Journal of Hazardous Materials，2021，411：125078.
[4]	LI H，LIU L，LI M，et al. Effects of pH，Temperature，Dissolved oxygen，and flow rate on phosphorus release processes at the sediment and water interface in storm sewer[J]. Journal of Analytical Methods in Chemistry，2013（15）：104316.
[5]	DING S，WANG Y，XU D，et al. Gel-based coloration technique for the submillimeter-scale imaging of labile phosphorus in sediments and soils with diffusive gradients in thin films[J]. Environmental Science& Technology，2013，47（14）：7821-7829.
[6]	FAN C. Advances and prospect in sediment-water interface of lakes：a review[J]. Journal of Lake Sciences，2019，31（5）：1191-1218.
[7]	WANG S，JIN X，JIAO L，et al. Nitrogen fractions and release in the sediments from the shallow lakes in the middle and lower reaches of the Yangtze River area，China[J]. Water Air& Soil Pollution，2008，187（1/2/3/4）：5-14.
[8]	SNDERGAARD M，JENSEN J P，JEPPESEN E，et al. Role of sediment and internal loading of phosphorus in shallow lakes[J]. Hydrobiologia，2003，506-509（1/ 2/ 3）：135-145.
[9]	LI C，DING S，CAI Y，et al. Decrease in macrofauna density increases the sediment phosphorus release and maintains the high phosphorus level of water column in Lake Taihu：a case study on Grandidierella taihuensis[J]. Water Research，2022，225：119193.
[10]	DEKUN H，JIANG H，CHANG W L，et al. Effects of environmental factors on nutrients release at sediment-water interface and assessment of trophic status for a typical shallow lake，northwest China[J]. The Scientific World Journal，2013：716342.
[11]	XU C. Research on nitrogen and phosphorus release from sediments in small inland freshwater lakes[J]. Advanced Materials Research，2013，864-867：248-255.
[12]	TONG Y，XU X，QI M，et al. Lake warming intensifies the seasonal pattern of internal nutrient cycling in the eutrophic lake and potential impacts on algal blooms[J]. Water Research，2020，188：116570.
[13]	YUAN H，WANG H，ZHOU Y，et al. Water-level fluctuations regulate the availability and diffusion kinetics process of phosphorus at lake water-sediment interface[J]. Water Research，2021，200：117258.
[14]	WEI N，YU D G，WANG G J，et al. Effects of continuous oxygenation on the vertical distribution of ions in overlying water-sediment interface-sediment interstitial water of aquaculture ponds[J]. Journal of Fisheries of China，2017，41（7）：1116-1125. 魏南，余德光，王广军，等. 持续充氧对养殖池塘上覆水-泥水界面-沉积物间隙水中离子垂直分布的影响[J]. 水产学报，2017，41（7）：1116-1125.
[15]	SULU-GAMBARI F，SEITAJ D，MEYSMAN F J，et al. Cable bacteria control iron-phosphorus dynamics in sediments of a coastal hypoxic basin[J]. Environmental Science& Technology，2016，50（3）：1227-1233.
[16]	BREITBURG D，LEVIN L A，OSCHLIES A，et al. Declining oxygen in the global ocean and coastal waters[J]. Science，2018，359（6371）：7240.
[17]	ALIERI A H，GEDAN K B. Climate change and dead zones[J]. Global Change Biology，2015，21（4）：1395-1406.
[18]	LIU Y G，TIAN K，LIU H F，et al. Research on application of innovative phosphorus removal agent in treatment of eutrophic water in the Dianchi Lake[J]. Environmental Engineering，2010，27（1）：36-39. 刘云根，田昆，刘惠芳，等. 新型除磷剂应用于滇池富营养化水体的试验研究[J]. 环境工程，2010，27（1）：36-39.
[19]	ZHOU J，LI D，CHEN S，et al. Sedimentary phosphorus immobilization with the addition of amended calcium peroxide material[J]. Chemical Engineering Journal，2019，357：288-297.
[20]	SYMONS C C，ARNOTT S E，SWEETMAN J N，et al. Grazing rates of crustacean zooplankton communities on intact phytoplankton communities in Canadian Subarctic lakes and ponds[J]. Hydrobiologia，2012，694（1）：131-141.
[21]	LIU M，RAN Y，PENG X，et al. Sustainable modulation of anaerobic malodorous black water：the interactive effect of oxygen-loaded porous material and submerged macrophyte[J]. Water Research，2019，160：70-80.
[22]	ZHU Y，TANG W，JIN X，et al. Using biochar capping to reduce nitrogen release from sediments in eutrophic lakes[J]. Science of the Total Environment，2019，646：93-104.
[23]	DING S，SUN Q，XU D，et al. High-resolution simultaneous measurements of dissolved reactive phosphorus and dissolved sulfide：the first observation of their simultaneous release in sediments[J]. Environmental Science& Technology，2012，46（15）：8297-8304.
[24]	WANG Y，DING S，GONG M，et al. Diffusion characteristics of agarose hydrogel used in diffusive gradients in thin films for measurements of cations and anions[J]. Analytica Chimica Acta，2016，945：47-56.
[25]	IVANOFF D B，REDDY K R，ROBINSON S，et al. Chemical fractionation of organic phosphorus in selected histosols[J]. Soil Science，1998，163（1）：36-45.
[26]	XU D，DING S，BAI X，et al. Speciation of organic phosphorus in a sediment profile of Lake Taihu I：Chemical forms and their transformation[J]. Journal of Environmental Science，2013，25（4）：637-644.
[27]	PAN X，LUO J X，TANG B R，et al. The influence of oxygen-carrying zeolite and tubificid worm on nitrogen migration and transformation in the sediment-water core[J]. Ecology and Environmental Sciences，2025，34（5）：763-772. 潘璇，罗竣潇，唐炳然，等. 载氧沸石与水丝蚓对沉积物-水剖面氮迁移转化的影响[J]. 生态环境学报，2025，34（5）：763-772.
[28]	PAN F，LIU H，GUO Z，et al. Effects of tide and season changes on the iron-sulfur-phosphorus biogeochemistry in sediment porewater of a mangrove coast[J]. Journal of Hydrology，2018，568：686-702.
[29]	AN S U，MOK J S，KIM S H，et al. A large artificial dyke greatly alters partitioning of sulfate and iron reduction and resultant phosphorus dynamics in sediments of the Yeongsan River estuary，Yellow Sea[J]. Science of The Total Environment，2019，665：752-761.
[30]	LI Y B，KUANG S，WANG Z Y，et al. Characteristics and significance of nitrogen，phosphorus，and oxygen migration across the sediment-water interface in East Chaohu Lake[J]. Journal of Lake Sciences，2020，32（3）：757-768. 李运奔，匡帅，王臻宇，等. 东巢湖沉积物水界面氮、磷、氧迁移特征及意义[J]. 湖泊科学，2020，32（3）：757-768.
[31]	DI Z Z，ZHANG H，SHAN B Q，et al. Status of internal nutrient loads and their impacts on overlying water quality in Lake Taihu[J]. Acta Scientiae Circumstantiae，2015，35（12）：3872-3882. 狄贞珍，张洪，单保庆，等. 太湖内源营养盐负荷状况及其对上覆水水质的影响[J]. 环境科学学报，2015，35（12）：3872-3882.
[32]	SUN H，TANG A，WAN J，et al. Importance of pH，dissolved oxygen and light to phosphorus release from ditch sediments[J]. Nature Environment and Pollution Technology，2015，14（3）：475-484.
[33]	WANG C，SHAN B，ZHANG H，et al. Analyzing sediment dissolved oxygen based on microprofile modeling[J]. Environmental Science and Pollution Research，2014，21（17）：10320-10328.
[34]	LIU X T，LIU J，WANG Y B，et al. Phosphorus cycling in sediment-water systems under different dissolved oxygen conditions[J]. Environmental Science，2022，43（12）：5571-5584. 刘笑天，刘军，王以斌，等. 不同溶解氧条件下沉积物-水体系磷循环[J]. 环境科学，2022，43（12）：5571-5584.
[35]	CELI L，BARBERIS E. Abiotic stabilization of organic phosphorus in the environment[M]//TURNER B L，FROSSARD E，BALDWIN D S. Organic Phosphorus in the Environment，Wallingford：CABI Publishing，2005：113-132.
[36]	FIONNA R，KIZEWSKI P B，HESTERBER D，et al. Mixed anion（phosphate/oxalate）bonding to iron（III）materials[J]. Journal of the American Chemical Society，2010，132（7）：2301-2308.
[37]	SLOMP C，Van S D G，RAAPHORST W V，et al. Phosphorus binding by poorly crystalline iron oxides in North Sea sediments[J]. Marine Chemistry，1996，52（1）：55-73.
[38]	NOFFKE A，HENSEN C，SOMMER S，et al. Benthic iron and phosphorus fluxes across the Peruvian oxygen minimum zone[J]. Limnology and Oceanography，2012，57（3）：851-867.
[39]	ANSCHUTZ P，ZHONG S，Sundby B.，et al. Burial efficiency of phosphorus and the geochemistry of iron in continental margin sediments[J]. Limnology and Oceanography，1998，43（1）：53-64.
[40]	ROZAN T F，TAILLEFERT M，TROUWBORST R E，et al. Iron‐sulfur‐phosphorus cycling in the sediments of a shallow coastal bay：Implications for sediment nutrient release and benthic macroalgal blooms[J]. Limnology and Oceanography，2002，47（5）：1346-1354.
[41]	STOCKDALE A，DAVISON W，ZHANG H，et al. Micro-scale biogeochemical heterogeneity in sediments：a review of available technology and observed evidence[J]. Earth Science Reviews，2009，92（1/2）：81-97.
[42]	XIANG S L，TAO S P，WU D S，et al. Phosphorus exchange flux across the sediment-water interface in Lake Poyang[J]. Journal of Lake Sciences，2017，29（2）：326-333. 向速林，陶术平，吴代赦，等. 鄱阳湖沉积物和水界面磷的交换通量[J]. 湖泊科学，2017，29（2）：326-333.