폐달걀껍질을 이용한 실험실폐수처리

• 영문명: Treatment of Laboratory Wastewater Using Waste Egg Shells
• 발행기관: 한국환경보건학회
• 저자명: 김은호 정유진 김형석
• 간행물 정보: 『1. 한국환경보건학회지』제24권 제3호, 124~130쪽, 전체 7쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 1998.09.30

영문 초록

This study was to examine the utilization of waste egg snells for removal of heavy metals in laboratory wastewater. It was estimated that pH increasing formed heavy metals into a hydroxide and then settled to remove them. Removal rate of heavy metals were increased as increased dosage, low adsorbate concentration and passed reaction time. Average adsorption volumes of Cr, Cu, Mn and Pb per g were about 1.21 mg, 1.1 mg, 0.96 mg and 1.04 mg, respectively. If we reflected the adsorption capacity(k) and adsorption intensity(1/n) of Freundlich isotherm, we couldn t consider waste egg shells as a good adsorbent. It seemed that heavy metals contained in complex wastewater was removed to be influenced by inital pH, solubilities with passed reaction rime and competitive reaction.

키워드

Laboratory wastewater Waste egg shells Adsorption