辽宁大学学报（自然科学版）2024，Vol.51Issue(2)：141-146,6.
不同因素对冻融-离心脱水处理河流底泥的影响研究
Study on the Influence of Different Factors on River Sediment Treated by Freeze-Thaw and Centrifugal Dehydration
摘要
Abstract
River sediment is the sediment of the river,which has the characteristics of high water content,and the high water content is an important factor affecting the effective treatment of river sediment.This study took the sediment of Nujiang bridge section of Xinkai River in Shenyang City as the research object,and analyzed the influences of different factors(freezing time,initial mass of sediment,centrifugal time and centrifugal speed)on the dewatering rate of river sediment and the turbidity of supernatant.The results show that with the increase of freezing time,centrifugal time and centrifugal speed,the dewatering rate of sediment first increases and then remains flat,while the turbidity of supernatant decreases and then remains flat.The initial mass was inversely correlated with the dewatering rate and positively correlated with the turbidity of supernatant.The optimum conditions were obtained:freezing time 5 h,initial mass 60 g,centrifugal time 20 min,centrifugation speed 6 000 r/min.Under these conditions,the dewatering rate of sediment increases from 34.00%to 61.09%,and the turbidity of supernatant decreases from 181.2 NTU to 14.4 NTU.关键词
河流底泥/脱水/冻融/离心Key words
river sediment/dehydration/freeze-thaw/centrifugation/reducing分类
资源环境引用本文复制引用
王杰,刘静姝,许海萍,梁露巍,徐筱暄..不同因素对冻融-离心脱水处理河流底泥的影响研究[J].辽宁大学学报（自然科学版）,2024,51(2):141-146,6.基金项目
辽宁大学2022年大学生创新创业训练计划项目(X202310140028) （X202310140028）
