How to realize the zero discharge of wastewater treatment plant sets

Systems in the start and stop when the residual gas is retained, so that the system operates under high pressure. The pressure gauges before and after the filters in the system are used to monitor the pressure drop of the cartridge, and the primary and final pressure gauges are used to monitor the pressure drop of the RO membrane module. The influent and concentrate valves are adjusted to ensure operating pressure and recovery. If the operation of the produced water flow or total flow drop, or primary and intermediate pressure difference than the initial operation of the pressure difference increased significantly (to the initial operation of the new reverse osmosis membrane module data as a standard), it is necessary to flush or clean the system to ensure that the performance of the membrane module safety all.

(1) after the equipment is emptied, re-run, the gas is not exhausted quickly pressurized operation. Should be under the pressure of the system to exhaust the remaining air, and then gradually pressurized operation.

(2) in the pretreatment equipment and high-pressure pumps between the joints of bad sealing or leakage (especially micron filters and their pipeline leakage) when the pretreatment water supply is not sufficient, such as micron filters clogging, in the sealing of the place due to the vacuum will be sucked into part of the air. Should be cleaned or replaced micron filter to ensure that the pipeline does not leak.

(3) whether the operation of each operating pump is normal, whether the flow rate is the same as the specified value, and compared with the pump operating curve to determine the operating pressure.