Treating method of sea water as circulating cooling water
A technology of circulating cooling water and treatment methods, which is applied in the directions of sterilization/microdynamic water/sewage treatment, complexes/solubilizer treatment, etc. It can solve the problems of serious microbial reproduction, sticky mud adhesion, easy blockage, corrosion, etc., and achieve a solution Slime adheres to easily block equipment and solve the problem of serious microbial reproduction
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Embodiment 1
[0014] When the seawater of the present invention is used as a treatment method for circulating cooling water, the system operating parameters are shown in Table 1, and the seawater quality is shown in Table 2.
[0015] Operating parameters
unit
value
Circulating water volume Qr
t / h
15000
m 3
3500
Evaporated water Qe
t / h
200
Sewage volume Qb
t / h
250~500
Supplementary water quantity Qm
t / h
450~750
1.4~2.0
[0016] Analysis Project
unit
Supplementary sea water
Circulating seawater (K=2.0)
pH
8.11
8.5 (estimated value)
us / cm
7500
15000
mg / L
25.50
51.0
``
428.20
856.4
Magnesium ions
``
1321.80
2643.6
Total hardness 1 / 2 (Ca 2+ +Mg 2+ )
...
Embodiment 2
[0024] System operation parameter and sea water quality are the same as embodiment 1
[0025] Seawater is added with 45mg / L corrosion inhibitor, 35mg / L scale inhibitor, 25mg / L oxidizing biocide and 80mg / L non-oxidizing biocide when circulating as cooling water. The results are shown in Table 3.
[0026] Prepare corrosion inhibitors, scale inhibitors, oxidizing biocides and non-oxidizing biocides according to the following weight percentages,
[0027] Corrosion inhibitor: sodium molybdate 11%, sodium gluconate 14%, sodium benzoate 9%, zinc sulfate 19%, zinc chloride 9%, trisodium citrate 11%, sulfamic acid 5%, sodium hexametaphosphate 7% %, sodium sulfate 9%, benzotriazole 6%.
[0028] Scale inhibitor: N-phosphonic acid group N-sulfonic acid group N'-dicarboxy-ethylenediamine 7%, 2-phosphonobutane, 1,2,4-tricarboxylic acid 19%, phosphoric acid 6%, Acrylic acid / 2-acrylamido-2-methylpropanesulfonic acid / 2-hydroxy-2-phosphonoacetic acid / phosphonic acid tetrapolymer 24%, water 44...
Embodiment 3
[0032] System operation parameter and sea water quality are the same as embodiment 1
[0033] Seawater is added with corrosion inhibitor 50mg / L, scale inhibitor 40mg / L, oxidizing biocide 25mg / L, and non-oxidizing biocide 100mg / L when circulating as cooling water. The results are shown in Table 3.
[0034] Prepare corrosion inhibitors, scale inhibitors, oxidizing biocides and non-oxidizing biocides according to the following weight percentages,
[0035] Corrosion inhibitor: sodium molybdate 13%, sodium gluconate 15%, sodium benzoate 8%, zinc sulfate 18%, zinc chloride 8%, trisodium citrate 12%, sulfamic acid 4%, sodium hexametaphosphate 6 %, sodium sulfate 8%, benzotriazole 8%.
[0036] Scale inhibitor: N-phosphonic acid group N-sulfonic acid group N'-dicarboxy-ethylenediamine 8%, 2-phosphonobutane, 1,2,4-tricarboxylic acid 18%, phosphoric acid 7%, Acrylic acid / 2-acrylamido-2-methylpropanesulfonic acid / 2-hydroxy-2-phosphonoacetic acid / phosphonic acid tetrapolymer 30%, water 3...
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