A battery manufacturing plant has been ordered to cease discharging acidic waste liquids containing.


A battery manufacturing fix has been ordered to cease discharging acidic shrivel liquids containing mercury into the city sewer plan. As a development, the decided must now adjust the pH and carry the mercury from its shrivel liquids. Three "firmshave supposing quotations on the necessary equipment. An segregation of the quotations supposing the forthcoming table of costs.

 

If the installation can be expected to decisive 20 years and money is value 7%, which equipment should be purchased?