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NTIS 바로가기Journal of Korea Water Resources Association = 한국수자원학회논문집, v.48 no.3, 2015년, pp.233 - 243
The bimodal flocculation of cohesive sediments in water environments describes the aggregation and breakage process developing a bimodal floc size distribution with dense flocculi and floppy flocs. A two class population balance equation (TCPBE) was tested for simulating the bimodal flocculation by ...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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이군집 응집이 주로 발생하는 원인은? | 이군집 응집은 점토입자의 일, 이차 결합력 차이에 의해 주로 발생한다. 일차 결합은 판상의 점토입자가 분자단위에서 직접 접촉하여 강하게 결합된 형태이고, 이에 반하여 이차 결합은 여러가지 유기 및 무기성분이 약하게 결합되어 있는 형태이다(van Leussen, 1994; Winterwerp and van Kesteren, 2004). | |
이군집 응집현상이란 무엇인가? | 이군집 응집현상은 수자원환경에서 점착성 유사가 결합-해체의 과정을 통해 응집핵-응집체의 이군집 입자크기분포 (Biomodal Floc Size Distribution)를 형성하는 일련의 과정을 의미한다. 본 연구는 저난류 및 고난류 두 가지 조건에서 수행한 응집-침전관 실험결과를 바탕으로 이군집 응집모형(TCPBE: Two Class Population Balance Equation)의 적용성을 단일군집 응집모형(SCPBE: Single Class Population Balance Equation) 및 다군집 응집모형(MCPBE: Multi Class Population Balance Equation)과 비교 평가하였다. | |
이군집 응집의 원인인 일차결합, 이차결합은 무엇인가? | 이군집 응집은 점토입자의 일, 이차 결합력 차이에 의해 주로 발생한다. 일차 결합은 판상의 점토입자가 분자단위에서 직접 접촉하여 강하게 결합된 형태이고, 이에 반하여 이차 결합은 여러가지 유기 및 무기성분이 약하게 결합되어 있는 형태이다(van Leussen, 1994; Winterwerp and van Kesteren, 2004). 일반적으로 일차 결합은 입자가 강하게 결합된 작고 밀도가 높은 형태의 응집핵을 만 들고, 이차 결합은 응집핵들이 다소 느슨하게 결합된 크고 밀도가 낮은 형태의 응집체를 만든다. |
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