A method for recycling reclaimed water to a circulating cooling water system

Abstract

The invention discloses a method of recycling reclaimed water for a recirculating cooling water system. The method comprises steps of: (1) adding a transition metal salt corrosion inhibitor and an azole corrosion inhibitor into the reclaimed water; (2) adding the reclaimed water to which the transition metal salt corrosion inhibitor and the azole corrosion inhibitor are added in the step (1) as replenishing water of recirculating cooling water into the recirculating cooling water of the recirculating cooling water system; and (3) adding a non-phosphorus scale inhibitor and a co-polymer scale-inhibiting dispersant into the recirculating cooling water to which the reclaimed water is added in the step (2). The method can assure water conveying safety and simplify a treatment technology of the recirculating cooling water.

Description

technical field

[0001] The invention relates to a method for recycling reclaimed water to a circulating cooling water system. Background technique

[0002] Nowadays, water resources are increasingly scarce. In order to realize the sustainable use of water resources, reclaimed water, as a reliable and reusable second water source, has attracted more and more attention. Reclaimed water mainly refers to non-drinking water that can be reused within a certain range after urban sewage or domestic sewage has been treated to meet certain water quality standards. . The reuse of reclaimed water has been implemented abroad for a long time, and the reuse scale is very large, showing obvious economic benefits.

[0003] my country's industrial water consumption is huge, among which circulating cooling water accounts for the largest proportion, and the water quality requirements of the circulating cooling water system for its supplementary water are slightly lower than those of other pro...

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