1993 Fiscal Year Final Research Report Summary
Risk Assessment on Groudwater Contamination Accompanying with Soil Adsorption
| Project/Area Number |
03452205
|
|---|
| Research Category |
Grant-in-Aid for General Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
基礎・土質工学
|
|---|
| Research Institution | Gifu University |
|---|
Principal Investigator |
UNO Takao Gifu Univ., Fac. of Eng., Professor, 工学部, 教授 (70021582)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
KAMIYA Kouji Gifu Univ., Fac. of Eng., Research Assoc., 工学部, 助手 (50252119)
SUGII Toshio Chubu Univ., Fac. of Eng., Assis. Prof., 工学部, 講師 (90196709)
TOKAI Akihiro Gifu Univ., Fac. of Eng., Assoc. Prof., 工学部, 助教授 (90207522)
SATO Takeshi Gifu Univ., Fac. of Eng., Assoc. Prof., 工学部, 助教授 (80135326)
YUASA Akira Gifu Univ., Institute For River Basin Environmental Studies, Professor., 流域環境研究センター, 教授 (10109499)
|
|---|
| Project Period (FY) |
1991 – 1993
|
| Keywords | Ground Water Quality / Ion Exchange / Capacity of Soil Adsorption / Environmental Risk Assessment / Unsaturated Soil |
|---|
| Research Abstract |
Research projects were accomplishied according to the following studies ; (1) Soil Particle, Pore Structure and Adsorption Capacity. (2) Adsorption Characteristics of Each Contaminants, and (3) Quality control for Environmental Risk Assessment.
The first activity gave the conclusions ; (1) Soil adsorption took a constant value independent on water saturation, on the other hand, dispersibility increased with decreasing water saturation. (2) A new method was proposed to estimate the pore size of sand using an air permeability test with air injection.
The results of the second activity were that ; (1) Distribution coefficient for a solute components took a small value with increasing the concentration of the other coexisting components, and (2) Modeling of competitive adsorption indicates that no change took place in adsorption characteristics of background components due to a small amount of contaminants adsorption, however, a small amount of contaminants adsorption decreased after background components adsorption.
The third was performed by water quantity estimation of tank model and water quality of soil compartment model. The simulation results showed that the parameter relating to soil adsorption and biological reaction play an important role on transport of fertilizer for the environmental risk assessment.
|
