Consider the following statements:
In solid waste management
1. Density separation of solid wastes can be accomplished by air classifiers.
2. Iron recovery from solid wastes can be done by magnetic separators.
3. Aluminium separation from solid wastes can be accomplished by eddy current separators.
Which of the statements given above are correct?
1
1 and 3
2
2 and 3
3
1 and 2
4
1, 2 and 3