Chemical waste and septic systems: I have been working in the education department for the last eight years, and have recently started working one day a week in a small school.

Chemical waste and septic systems: I have been working in the education department for the last eight years, and have recently started working one day a week in a small school.
Copper (II) sulfate use and disposal
Alkane/Alkene/Bromine Water clean up: My teachers yesterday did a prac on the
Can potassium permanganate waste be neutralised?
Calcium hydroxide: I have 2 bottles of Calcium Hydroxide that are moist. Can it be dried out? Or is it no good or Ok as is? Also how do I stop the chemicals from becoming moist?
Disposal of reactants of chemical clock ac
Disposal of potassium permanganate: I would like to know how to dispose of potassium permanganate 0.02M solution. The MSDS states it is not a hazard but that it must not be put down the drain.
Esters – preparation, properties and disposal
This is a combination of several questions
Waste chemical disposal: We are in western Sydney and are looking for an economical way of disposing of both solution and solid chemical waste and surplus chemicals .