Municipal Solid Waste Management

The correct matching between the equipment and their functions in municipal solid waste treatment is as follows: Step 1: Trommel
A trommel is used for screening, which is the process of separating materials based on their size. Therefore, matches with (iii) Screening. Step 2: Magnetic separator
A magnetic separator is used to recover ferrous metals from the waste. Therefore, matches with (iv) Ferrous metal recovery. Step 3: Hammer mill
A hammer mill is a machine used for size reduction of materials, breaking them down into smaller pieces. Therefore, matches with (i) Size reduction. Step 4: Eddy current separator
An eddy current separator is used for separating non-ferrous metals, especially aluminium, from other materials. Therefore, matches with (ii) Aluminium separation. Final Answer: