渔业现代化2025，Vol.52Issue(5)：54-64,11.DOI:10.26958/j.cnki.1007-9580.2025.05.006
改性石英砂与沸石对养殖源水中铁、锰去除的研究
Study on the removal of iron and manganese from aquaculture source water by modified quartz sand and zeolite
摘要
Abstract
With the increasing reliance of the aquaculture industry on groundwater resources,the water quality issues caused by excessive iron and manganese concentrations in groundwater have become progressively prominent.Elevated levels of iron and manganese adversely affect the respiration,immune function,growth,and development of aquaculture organisms,thereby restricting the widespread application of groundwater in aquaculture practices.In this study,quartz sand and zeolite were chemically modified using potassium permanganate(KMnO4)and manganese sulfate(MnSO4)solutions,while physical modification of zeolite was achieved through high-temperature calcination.Comprehensive characterization of the modified materials was conducted.Iron and manganese filtration experiments were performed to investigate the maturation period required for achieving stable iron-manganese removal efficiency in both modified and unmodified quartz sand and zeolite.The results demonstrated that chemical modification induced the formation of spherical particles on quartz sand surfaces and created dense etching grooves on zeolite,whereas physical modification disrupted the layered structure of calcined zeolite.Energy-dispersive X-ray spectroscopy revealed Mn element proportions of 18.32％and 24.82％on chemically modified quartz sand and zeolite surfaces,respectively,primarily existing as MnO2.Maximum specific surface areas(7.26 m2/g and 28.57 m2/g)and pore volumes(0.005 2 cm3/g and 0.112 cm3/g)were attained for chemically modified quartz sand and 300℃-calcined zeolite.The 400 ℃-calcined zeolite exhibited peak specific surface area(20.18 m2/g)and pore volume(0.085 7 cm3/g).Chemically modified zeolite demonstrated the shortest maturation period for iron and manganese removal,requiring only 10 and 8 days respectively,significantly shorter than unmodified materials.This research provides theoretical foundations and technical references for developing iron-manganese removal technologies in groundwater applications for aquaculture.关键词
养殖源水/石英砂/沸石/铁锰去除/物理改性/化学改性Key words
aquaculture source water/quartz sand/zeolite/iron and manganese removal/physical modification/chemical modification分类
水产学引用本文复制引用
李世林,徐永江,徐勇,张建设,耿仁闯..改性石英砂与沸石对养殖源水中铁、锰去除的研究[J].渔业现代化,2025,52(5):54-64,11.基金项目
国家重点研发计划课题"新品种SPF种苗规模化繁育体系构建"(2022YFD2400205) （2022YFD2400205）
中国水产科学研究院中央级公益性科研院所基本科研业务费专项(2023TD53) （2023TD53）
国家海洋水鱼产业技术体系(CARS-47) （CARS-47）
