- (a) In 20 or less of yourown words define the term “leachate”and describe how it forms.
(b) Previous records had shown that to prevent acute toxicity to organisms, the maximum mass of CdSO4 that should be allowed into the landfill was determined to be 0.1 kg. This was calculated using a standard concentration of Cd in mg/L where the volume of the leachate pond was used as 500 000L.
(i) Provide the name of the CdSO4 compound. State the oxidation number of Cd in this compound
(ii) You need to ensure that the concentration used to determine the mass of Cd allowed in the landfill, meets the current regulatory standard.
Assuming that previous calculations determined that all of the CdSO4 would be deposited in the leachate pond, what standard concentration of Cd in mg/L was used to determine the maximum mass of allowable CdSO4?
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