A Review on the Use of Rapid Small Scale Column Test (RSSCT) on Predicting Adsorption of Various Contaminants

Abstract

The Rapid Small Scale Column Test (RSSCT) is a small-scale model of a pilot-scale system which isaimed to give performance equal to the full-scale system when loaded with small sized particle adsorbent such as Granular Activated Carbon (GAC)

Evaluation of Factors Influencing Lab-Scale Studies to Determine Heavy Metal Removal by Six Sorbents for Stormwater Treatment

“…Lab-scale column experiments are more representative than batch experiments because of a constant flow, higher solid-to-solution-ratios, and the missing of the filtration step, which makes it possible to compare the efficiencies of filter materials and the effluent water quality [47]. A variation of the flow-rate to evaluate varying rain intensities can be achieved without high efforts during one experimental run by considering the site-specific hydrology and the flow-rate that is relevant for the filter system.…”

An Experimental Method for Predicting the Adsorption of Trace Organic Contaminants in Partially Saturated Granular Activated Carbon

“…Granular activated carbon (GAC) can be used in drinking water treatment to remove trace organic contaminants, including pesticides, taste and odor (T&O) compounds, and a variety of other contaminants of emerging concern such as pharmaceuticals and hormones. − One challenge of using GAC is that it is difficult to predict its expected service life when installing new GAC or to predict how long existing GAC can continue to provide treatment. The most common experimental tool used to predict service life is the rapid small-scale column test (RSSCT). − The RSSCT uses governing equations to simulate a long-term operation of GAC (e.g., years) in short-term laboratory tests (e.g., weeks) by reducing the GAC particle sizes in the tests compared to those at full scale to have the equivalent effect of accelerating time. , The primary advantages of the RSSCT include the following. (1) The operation time of the RSSCT is much shorter than that of the pilot-scale test.…”

“…6−8 The RSSCT uses governing equations to simulate a long-term operation of GAC (e.g., years) in short-term laboratory tests (e.g., weeks) by reducing the GAC particle sizes in the tests compared to those at full scale to have the equivalent effect of accelerating time. 8,9 The primary advantages of the RSSCT include the following. (1) The operation time of the RSSCT is much shorter than that of the pilot-scale test.…”

Remoção de carbono orgânico dissolvido de águas filtradas com tratamento complementar por pré-oxidação com ozônio e adsorção em carvão ativado

“…O método de ensaio rápido em colunas de escala reduzida (ERCER) foi desenvolvido para possibilitar a previsão da adsorção de contaminantes dissolvidos em água em colunas de carvão ativado de escala piloto ou em tamanho real. Esse método é vantajoso por seu reduzido tempo de ensaio e custos quando comparado aos ensaios em escala piloto, além de oferecer dados operacionais mais relevantes do que o teste de isotermas (PODDAR, NAIR & MAHINDRAKAR, 2013;CHOWDHURY et al, 2013;ASTM, 2014).…”

“…No método ERCER, as características hidrodinâmicas e os fenômenos de transferência de massa de um reator de escala piloto são equivalentes aos de uma coluna de teste de pequena escala. Dessa forma, espera-se que as curvas de ruptura sejam semelhantes para ambas as escalas (PODDAR, NAIR & MAHINDRAKAR, 2013). O tempo de contato em leito vazio (TCLV), a taxa de aplicação superficial (TAS) e o diâmetro médio das partículas de carvão são usados para escalar os resultados do ERCER para uma coluna de CAG em escala piloto ou real (ASTM, 2014).…”