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How to reduce the operating cost of RO system
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How to reduce the operating cost of RO system

Views: 5     Author: Site Editor     Publish Time: 2022-07-29      Origin: Site

RO system has higher operating cost because of high pressure pump and special scale inhibitor needs to be added. So how can we reduce the operating cost of RO system?

Choose ULP reverse osmosis membrane

Conventional reverse osmosis membrane operating pressure is 1.3 ~ 1.5 MPa, ultra-low pressure reverse osmosis membrane operating pressure is about 0.8 MPa or even lower (closely related to the water temperature), can save more than 30% of electricity consumption. For large RO systems, it can basically offset more than 70% of the annual depreciation cost of the membranes, so the savings are even more significant.

Food factory industrial ro plant

High pressure pump with inverter

High pressure pump with inverter can not only slow down the water hammer impact when the pump starts, but also reduce the valve throttling energy consumption by setting a reasonable operating pressure, which can save at least 15% of energy quarterly throughout the year.

Reasonable calculation of scale inhibitor dosage

By analyzing the water quality data and optimizing the dosage, we can usually save 20% or even more of the cost of chemicals.

Reduce the operating pressure by increasing the number of membranes appropriately

By appropriately increasing the membrane area, the operating pressure of the membrane can be reduced to a certain extent and the electricity consumption can be reduced.

Industrial reverse osmosis purification plant

Water Quality

Water temperature higher than 45℃ will shorten the service life of the membrane. Generally, the water temperature needs to be controlled below 40℃, and cooling measures should be taken when necessary. For RO systems, wastewater containing strong oxidizing substances or precipitating substances will lead to shortened membrane life cycle. When designing the system, from its safety point of view, increasing the pretreatment safety margin and adding a protective shutdown design can avoid causing such problems.

Industrial reverse osmosis ro

Using anti-pollution reverse osmosis membrane

Anti-pollution membrane is developed for Chinese water quality, with high desalination rate, high water production, high chemical durability, high anti-pollution and ultra-low pressure operation, under the same water quality conditions, energy consumption can be reduced by 30%-40%, membrane elements are easier to clean, while effectively solving the increasingly stringent water pollution problems, and effectively reduce operating costs, bringing higher value to customers.

Generally speaking, it is normal for reverse osmosis membranes to last about 2-3 years. However, if there is improper operation, it will shorten the service life of the membrane, and then shorten the service life of the direct drinking water equipment