Integrated equipment and method for automatic treatment of circulating cooling water and reuse of sewage

Abstract

The invention discloses integrated equipment and a method for automatically treating circulating cooling water and recycling sewage water. The integrated equipment comprises an on-line cooling water quality monitoring device, a cooling water treatment effect monitoring device, a medicament feeding device, a water use amount and drug use amount counting device, an advanced cooling water treatment and recycling device and an on-site control device. The integrated equipment can effectively monitor the water quality of the circulating cooling water on line and automatically add and adjust medicines according to an actual condition of the water quality so as to solve the problems that the cooling water is scaled, eroded and deposited and generates microorganisms and ensures that the water quality of the cooling water can meet a requirement for advanced treatment on the water quality of recycled water; furthermore, the use amount of chemical products for treating the cooling water is reduced by 30 percent; when the water quality concentration factor of the cooling water reaches the maximum value permitted by the national standard, the advanced treatment and recycling device is switched on; a reverse osmosis system matched with a special scale inhibitor is used for performing advanced treatment on sewage water, so that 50-60 percent of sewage water can be recycled; calcium ions and bicarbonate radicals which are discharged by the cooling water are actually increased to 2,300 ppm (which is metered by calcium carbonate).

Description

technical field [0001] The invention relates to an integrated equipment for fully automatic control of the water quality of circulating cooling water and deep treatment of circulating cooling water to achieve the purpose of reuse. Background technique [0002] The concentration ratio of circulating cooling water refers to the ratio of the total mineral content in the cooling water to that in the make-up water, and can also be expressed as the ratio of the total amount of cooling water make-up to the total amount of sewage (including sewage, leakage, splash, etc.). [0003] During the operation of the circulating cooling water system, part of the cooling water is evaporated to achieve the purpose of cooling. Since the evaporated water is pure water, the minerals contained in the evaporated cooling water remain in the cooling water, which leads to the continuous increase of the mineral concentration in the cooling water, that is, the continuous increase of the concentration ra...

AI Technical Summary

Problems solved by technology

The disadvantages of the above-mentioned water treatment chemical dosing methods are: neither the chemical dosing nor the adjustment method can stably control the content of the chemical in the cooling water. With the change of production load, the change of ambient temperature and other factors, and the cooling water system evaporation and Changes in sewage discharge, affected by the above factors, according to the existing quantitative dosing of water treatment chemicals will often exceed or be lower than the normal dosage of chemicals required by the circulating cooling water system, resulting in various problems

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