Depth Distribution of Added Lead and Zinc in Sand Filtration Pond Model

Autor:	Nobutada Nakamoto, Masuo Yamamoto
Rok vydání:	2002
Předmět:	Particulate organic carbon Adsorption Chemistry law Environmental chemistry parasitic diseases Lead (sea ice) Environmental engineering chemistry.chemical_element Zinc Effluent Filtration law.invention
Zdroj:	Japanese Journal of Water Treatment Biology. 38:159-165
ISSN:	1881-0438 0910-6758
DOI:	10.2521/jswtb.38.159
Popis:	This is an experiment in which purifies the comparatively lower level of ionic lead by sand filtration pond model. Similarly, it also tried on zinc. As a continuation of previous work, the behavior of lead and zinc in a continuous-culture sand filtration pond model over 2 weeks were examined by dosing the influent with lead or zinc solutions. The sand filtration pond model was covered with a bath lid. It was found that most lead was adsorbed in the top about 8 cm of the sand columns with only 15% of the added load detected in the effluent, whereas zinc persisted throughout the columns and 78-90% of load was present in the effluent. Thus, sand columns exhibit a high capacity for the immobilization of lead. From a correlation between lead and particulate organic carbon in the sand columns, indicating that the adsorption of lead was principally caused by reaction involving organic substances and due to a relationship between the two materials. These results also highlight the dissimilar mobility of lead and zinc
Databáze:	OpenAIRE
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