1. service life of reverse osmosis membrane: reverse osmosis membrane is an expensive part of a set of equipment, and its service life is related to the operating cost of the whole set of equipment; The service life of reverse osmosis is directly related to whether the selection of the whole set of equipment is reasonable, whether the operation method is proper, whether the consumables are replaced in time, and whether the membrane elements are cleaned and maintained regularly according to the situation.
2. The conductivity of effluent water quality increases: the situation of reverse osmosis equipment in each period needs to be recorded in time. If the conductivity rises slowly, the desalination rate drops a little, which is a normal phenomenon, so it is only necessary to carry out corresponding maintenance in time according to the reason of its conductivity rise; If the conductivity suddenly rises, it is necessary to detect whether the filtration is caused by broken components, great changes in raw water quality or failure of some pretreatment materials.
3. After the reverse osmosis membrane was washed, the water quality changed little. Reason:
A, whether the component is damaged.
B, whether a pretreatment material fails.
C, when washing the membrane, it is not clear what kind of pollution and pollution degree the membrane element is subjected to, but the right medicine.
4. Excessive system pressure difference: According to different membrane elements, the system pressure difference should be controlled within a reasonable range to avoid damaging membrane elements.
5. The utilization rate of raw water is not high, and the discharge of concentrated water is too large: whether the water inflow is sufficient, whether the pressure reaches the working condition of materials, and whether the design of reverse osmosis equipment is reasonable.