The invention discloses a
reclaimed water recycling
reverse osmosis membrane
cleaning agent, and belongs to the technical field of membrane element cleaning. The
cleaning agent comprises an acidic
cleaning agent and an alkaline cleaning agent. The acidic cleaning agent comprises the following main components in percentage by weight: 0.02-0.2% of
hydrochloric acid, 0.1-0.2% of
organic acid and thebalance of water. The alkaline cleaning agent comprises the following main components in percentage by weight: 0.05-0.2% of
sodium hydroxide, 0.01-0.1% of biosurfactant, 0.02-0.2% of
metal complexingagent, 0.01-0.1% of bactericide, and the balance of water. A use method comprises the following steps: cleaning the
reverse osmosis membrane with the acidic cleaning agent, then cleaning the
reverse osmosis membrane with the alkaline cleaning agent, and washing the reverse
osmosis membrane with clear water after cleaning with the acidic cleaning agent and the alkaline cleaning agent, wherein during on-line cleaning, a part of concentrated water and
produced water need to be discharged into a
wastewater pool at the initial stage of cleaning. The reverse
osmosis membrane cleaning agent disclosedby the invention is an environment-friendly composite formula which is easy to biodegrade, all the components play a role in coordination and
synergy during cleaning, the cleaning agent has excellentcleaning performance on a reverse
osmosis membrane which is seriously polluted during
reclaimed water recycling, and the usage amount of the cleaning agent is small.