| 摘要 |
PROBLEM TO BE SOLVED: To provide a water cleaning apparatus which secures clean water by recovering impurities in high efficiency, can be easily managed, can be operated satisfactorily to clean water even in such a region that electric power can not be secured and has extremely excellent practicality. SOLUTION: This water cleaning apparatus comprises water conveying units 1a, 1b, a pretreatment unit 2 and a reverse osmosis membrane filtration unit 3 for subjecting the water pretreated in the unit 2 to reverse osmosis membrane filtration treatment. A hand pump is adopted as each of the units 1a, 1b. |
