| water recovery(expression, action, water, clarification, regeneration) |
| water recycling(expression, action, water, clarification, regeneration) |
| water regeneration(expression, action, water, clarification, regeneration) |
| water reclamation(expression, action, water, clarification, regeneration) |
| clarification of water(expression, action, water, purification) |
| conditioning of water(expression, action, water, purification) |
| desalination of water(expression, action, water, purification) |
| drinking-water treatment(expression, action, water, purification) |
| feedwater conditioning(expression, action, water, purification) |
| purification of waters(expression, action, water, purification) |
| purifying water(expression, action, water, purification) |
| reclaimed water(expression, action, water, purification) |
| recycled water(expression, action, water, purification) |
| treated water processing(expression, action, water, purification) |
| treated water production(expression, action, water, purification) |
| wastewater reuse(expression, action, water, purification) |
| water conditioning(expression, action, water, purification) |
| water conditioning and purification(expression, action, water, purification) |
| water conversion(expression, action, water, purification) |
| water demineralization(expression, action, water, purification) |