Title:
河床表層材料の汚染物に対する吸着／脱着特性の測定装置およびその使用方法
Document Type and Number:
Japanese Patent JP6698171
Kind Code:
B2
Abstract:
The present invention discloses a device for measuring adsorption/desorption of contaminants onto surface bed sediments and a method of using the device. The measurement device includes a sediment sample disc, a sample holder, a reaction cylinder, a liquid collection cylinder, and a liquid circulating member from inside to outside, the liquid circulating member consisting of rubber pipes and a peristaltic pump. According to the method of using the device for measuring the adsorption/desorption of contaminants onto surface bed sediments, the full contact of bed sediments with pore water and the full exchange of overlying water with pore water are realized through liquid circulation without changing the arrangement modes of the bed sediments; any thickness of bed sediments can be performed on experiments, particularly for thin-layer bed sediments; and natural permeation and accelerated permeation of pore water through bed sediments can be switched simply by adjusting the flow rates of the peristaltic pump and by opening/closing of vent holes. Adsorption characteristic parameters obtained through the device and the method provide, for water quality models, data support which conforms to the natural existing condition of bed sediments and is more scientific and reasonable, and the device and the method achieve significant environmental benefits.
Inventors:
Tang Hong
Lee Qing
Xiao Xiang
Lee Zhiwei
Yuka Sai
Lee Qing
Xiao Xiang
Lee Zhiwei
Yuka Sai
Application Number:
JP2018548002A
Publication Date:
May 27, 2020
Filing Date:
October 10, 2017
Export Citation:
Assignee:
Hohai University
International Classes:
G01N33/24
Domestic Patent References:
| JP2006300627A |
Foreign References:
| CN102590479A | ||||
| CN106248905A | ||||
| CN203616304U |
Other References:
LI Zhiwei et al.,Factors influencing phosphorus adsorption onto sediment in a dynamic environment,Journal of Hydro-environment Research,ELSEVIER B.V.,2016年,Vol.10,pp.1-11
Attorney, Agent or Firm:
Cui Hailong
Takayuki Kawai
Takayuki Kawai