충남대학교 대덕캠퍼스내 상수도 물의 수리지구화학적 특성

• 발행기관: 대한자원환경지질학회
• 저자명: 이찬희 이현구 이종창
• 간행물 정보: 『자원환경지질』33권 3호, 181~193쪽, 전체 13쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 2000.06.30

영문 초록

This study was undertaken to evaluate the drinking water quality based on physicochemical properties and chemical compositions of the supply water in the Daedeok Campus, and to verify the analytical reliabilities of ICP-MS and IC equipped in the Central Research Facilities at Chungnam National University , Korea. The supply water belongs to {{{{Ca^2+~ (HCO_3~ + SO_4^2-~ ) }} }} type, whereas the original water from the Daecheong lake belongs to {{{{(Ca^2+ ~ Mg^2+ )-HCO-_3 }} }} type. Generally, temperature (14.1℃), pH (6.95), Eh (0 mV), electrical conductivity (117μS/cm) and TDS (86.975mg/ι) of supply water were higher than those of original lake water . Results using WATEQ4F revealed that potentially toxic ions of the supply water might exist mainly as free metals (M2+) and a small amount as CO32- and OH- complexes. Also, the water composition belongs to the kaolinite field. Calculated average enrichment indies of the supply water normalized to lake water for anions, mamor cations, toxic cations and total ions are 1.05 , 1.56, 13.05 and 1.17 , respectively. Those values of the ground water in the Daedeok Campus showed 1.71, 4.78, 5.71 and 2.49 , respectively. However , contents of all constituents of these water are within the drinking water standard. All samples were filtered before the chemical analysis. Pale yellow or yellowish brown colored materials of colloidal particles coated the filter paper to thickness of 0.02 to 0.2mm. these are mainly Fe-Cy-Zn compounds with traces of Ni and Pb, the net weights of which compounds range from 0.01to 3.20mg/ι. Most elements did not show any conceivable filtering effect of Cu, Fe and Zn. Especially, mean concentration of total Fe decreased considerably from 168.52㎍/ιto 42.58㎍/ι by filtering .

키워드

상수도물 수리지구화학적특성 중금속 여과효과 용존이온 부화도 음이온