海洋湖沼通报
海洋湖沼通報
해양호소통보
TRANSACTIONS OF OCEANOLOGY AND LIMNOLOGY
2000年
1期
8-12
,共5页
李改枝%郭博书%焦小宝%红霞%乌地
李改枝%郭博書%焦小寶%紅霞%烏地
리개지%곽박서%초소보%홍하%오지
交换吸附%悬浮粒子%镉%氨基酸%黄河水
交換吸附%懸浮粒子%鎘%氨基痠%黃河水
교환흡부%현부입자%력%안기산%황하수
exchange adsorption%suspended particle%cadmium%amino acid%the Yellow River
本文研完了黄河水中Cd2+与悬浮粒子相互作用的等温线,以及精氨酸和酪氨酸对等温线的影响.得到的等温线具有一个"拐点"两个"平台",属二级离子交换.用分组离子交换等温式求出了吸附平衡常数K 1和K2.当低浓度的氨基酸存在时,对Cd2+与悬浮粒子的交换吸附起促进作用,促进作用的程度与氨基酸的等电点有关,精氨酸的促进作用较酪氨酸大.
本文研完瞭黃河水中Cd2+與懸浮粒子相互作用的等溫線,以及精氨痠和酪氨痠對等溫線的影響.得到的等溫線具有一箇"枴點"兩箇"平檯",屬二級離子交換.用分組離子交換等溫式求齣瞭吸附平衡常數K 1和K2.噹低濃度的氨基痠存在時,對Cd2+與懸浮粒子的交換吸附起促進作用,促進作用的程度與氨基痠的等電點有關,精氨痠的促進作用較酪氨痠大.
본문연완료황하수중Cd2+여현부입자상호작용적등온선,이급정안산화락안산대등온선적영향.득도적등온선구유일개"괴점"량개"평태",속이급리자교환.용분조리자교환등온식구출료흡부평형상수K 1화K2.당저농도적안기산존재시,대Cd2+여현부입자적교환흡부기촉진작용,촉진작용적정도여안기산적등전점유관,정안산적촉진작용교락안산대.
The isotherms of the iateraction between the suspended particles with Cd2+, and the effects of arginine and tyrosine on the isotherms in the Yellow River were studied. The isotherm is formed by two carves joined together with a "flat portion" in the middle, it belongs to second order exchange reaction. The adsorption equilihrlum constants K1 and K2 were calculated by using the isothermal equation of surface stepwise ion exchange. Amino acid in small amount promotes exchange adsorption of the suspended particles with Cd2+. The degree of promotive action relates to the isoclectric point of amino acid. The promotion of arginine is bigger than tyrosine.
