1.1.12 Sludge treatment
6.3.4 Dosing equipment, dosing systems
7.1.24 Other sludge decontamination and disinfection systems
7.2.6 Conditioning systems
7.2.7 Batching, dosing and combining equipment
7.3.16 dryer, steam-heated
7.3.19 Other drying processes
14.1.1 Wastewater, waste analysis