A process for the treatment of effluent, particularly acid mine drainage, is provided which includes the steps of a. neutralising acid; b. removing cations by ion exchange using a cation resin; c. regenerating the cation resin; d. treating the eluates of the cation ion exchange step; e. adsorbing anions from the effluent of the cation removal step using an anion exchange resin; and f. regenerating the anion exchange resin.

 
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> OZONIZED WATER PRODUCING APPARATUS, GAS/LIQUID MIXING STRUCTURE FOR USE IN THE OZONIZED WATER PRODUCING APPARATUS, OZONIZED WATER PRODUCING METHOD AND OZONIZED WATER

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