Water recycling is reusing wastewater to save both
energy and the environment. Landscape irrigation,
cooling processes in oil refineries and dust control are
(23)---- the most common non-potable (not for drinking)
purposes. Recycled water can meet most water
demands (24)---- it is adequately treated to ensure water
quality. In situations where people are overly (25)---- to
recycled water, they are more likely to contract
diseases. However, no documented cases of human
health problems (26)---- contact with recycled water
have been reported. As such, demand for recycled
water is increasing very rapidly, and with no doubt, it
(27)---- many recycling projects across the world in
following decades.