초록 ▼

Paramagnetic metals are separated from aqueous media containing them in low concentration by first fixing the metals on bacterial yeast or other cells so as to render the cells magnetic, and then recovering the cells by a high gradient magnetic separation technique. The metal and the cells are conta

Paramagnetic metals are separated from aqueous media containing them in low concentration by first fixing the metals on bacterial yeast or other cells so as to render the cells magnetic, and then recovering the cells by a high gradient magnetic separation technique. The metal and the cells are contacted in the presence of a compound which is converted by the cells into a product which interacts with the metal and causes it to become bound to the cells. The process is particularly useful for removing low concentrations of highly toxic metals, e.g. uranium, from industrial effluents containing them.

대표청구항 ▼

A process for the separation of a paramagnetic metal from an aqeuous medium containing said paramagnetic metal in the form of ions which comprises contacting said medium with cellular particles having enzymatic activity in the presence of a compound which is enzymatically converted by said particles

A process for the separation of a paramagnetic metal from an aqeuous medium containing said paramagnetic metal in the form of ions which comprises contacting said medium with cellular particles having enzymatic activity in the presence of a compound which is enzymatically converted by said particles into an ion which forms a water-insoluble salt with the paramagnetic ions, said salt becoming bound by said particles, and then separating the particles having the paramagnetic metal salt bound thereto magnetically from said aqueous medium.