A thermoelectric water station regeneration alkaline solution recovery system
A technology of lye recovery and thermoelectricity, which is applied in chemical instruments and methods, neutralized water/sewage treatment, and separation of dispersed particles, etc. It can solve the problems of waste of fire-fighting water, impact on environmental protection, and many suspended solids in ditches.
Active Publication Date: 2017-07-21
JINAO HUBEI SCI & TECH CHEM IND
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However, since the content of regenerated acid solution is less than that of regenerated lye during regeneration, the pH value of the neutralized external drainage is alkaline, the pH value seriously exceeds the standard, and there are more suspended solids in the external drainage ditch, which affects environmental protection and causes pollution. In order to alleviate this This phenomenon must be diluted with a large amount of fire-fighting water, resulting in a large waste of fire-fighting water
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[0013] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0014] like figure 1 As shown, a system for recovering lye from thermoelectric water post regeneration includes alkali discharge pipe 1, acid discharge pipe 2, chemical water neutralization tank 14 and external drainage ditch 11, and alkali discharge pipe 1 and acid discharge pipe 2 are connected to chemical water The pool 14 also includes an external drainage pump 12, a lye tank 4, a transfer water pump 5 and a desulfurization absorption tower 7, a first valve 15 is installed on the alkali discharge pipe 1, and a second valve 3 is installed on the acid discharge pipe 2. In the water, the neutralization pool 14 is connected to the water inlet of the outer drainage pump 12 by a pipeline, and the water outlet of the o...
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The invention belongs to the technical field of thermoelectric water tank external drainage treatment, and specifically relates to a thermoelectric water tank regenerated lye recovery system, including an alkali discharge pipe, an acid discharge pipe, a chemical water neutralization pool and an external drainage ditch, an alkali discharge pipe and a discharge ditch. The acid pipes are all connected to the chemical water neutralization tank, and also include the external drainage pump, lye tank, transfer water pump and desulfurization absorption tower. The first valve is installed on the alkali discharge pipe, the second valve is installed on the acid discharge pipe, and the chemical water neutralization tank The water inlet of the external drainage pump is connected through a pipeline, and the outlet of the external drainage pump is connected to the lye tank through a pipeline. A third valve is installed on the end of the pipeline between the external drainage pump and the lye tank near the lye tank. The pipeline is connected to the pipeline between the external drainage pump and the lye tank. The fourth valve is installed on the pipeline connected to the external drainage ditch. The water inlet of the transfer pump is connected to the lye tank through the pipeline, and the outlet of the transfer pump is connected to the desulfurization absorption tower through the pipeline. PH tank. The beneficial effect is that there is no need to consume fire-fighting water and environmental pollution is avoided.
Description
technical field [0001] The invention belongs to the technical field of waste water treatment outside a thermoelectric water station, in particular to a recovery system for regenerated lye from a thermoelectric water station. Background technique [0002] After the thermoelectric water post mixed bed fails, it needs to add acid and lye (the amount of acid added is less than that of lye) for regeneration. After the mixed bed is regenerated into alkali and acid, the alkali and acid The regenerated liquid is discharged to the chemical water neutralization tank for neutralization, and then discharged. However, since the content of regenerated acid solution is less than that of regenerated lye during regeneration, the pH value of the neutralized external drainage is alkaline, the pH value seriously exceeds the standard, and there are more suspended solids in the external drainage ditch, which affects environmental protection and causes pollution. In order to alleviate this This p...
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IPC IPC(8): C02F1/66B01D53/78B01D53/48
Inventor 胡廷平严业非王淼
Owner JINAO HUBEI SCI & TECH CHEM IND