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  _____    _    _     _  _    _    _    __   _   
 / ____|| | || | ||  | \| || | || | || | || | || 
/ //---`' | || | ||  |  ' || | || | || | '--' || 
\ \\___   | \\_/ ||  | .  || | \\_/ || | .--. || 
 \_____||  \____//   |_|\_||  \____//  |_|| |_|| 
  `----`    `---`    `-` -`    `---`   `-`  `-`

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Text this: Simultaneous adsorption of copper ions and humic acid onto an activated carbon