Zero discharge technology of paper making sewage disposal

A papermaking sewage and zero discharge technology, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of zero sewage discharge and water source pollution

Inactive Publication Date: 2009-03-11
许金平
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Problems solved by technology

The paper industry has indeed brought a lot of pollution, especially the pollution of water sources. At present, many p

Method used

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  • Zero discharge technology of paper making sewage disposal

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Embodiment Construction

[0005] see figure 1 , this specific real-time mode adopts the following technical scheme: it comprises several fine mud pools 1, several sewage clear water pools 2, sedimentation tanks 3, mud pumps 4, absorbs water source from a sewage clean water pool 2 in the pulping process of papermaking, The papermaking workshop also draws water from the sewage clear water tank 2, and the dosing tank adds medicine to the papermaking workshop. Pool 2; the sewage discharged from the papermaking workshop is treated by two fine mud pools 1, and then pumped by the mud pump 4 into the sedimentation tank 3 and the sewage clean water pool 2. Part of the mud returns to the fine mud tank 1, and the rest of the sewage enters other sewage clear water tanks 2 to continue processing. The invention is mainly used for producing bobbin paper, does not require high bleaching degree, can reuse sewage, and truly achieves zero discharge of sewage. In the present invention, fiber separation and pressure siev...

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Abstract

The invention discloses a paper-making sewage zero release technique, and relates to a paper-making sewage disposal technique, in particular to a paper-making sewage disposal zero release technique. The pulping technique for paper-making absorbs water from a sewage and clean water tank (2), and a paper-making workshop also absorbs the water from the sewage and clean water tank (2); medicines are added into the paper-making workshop by a medicine feeding barrel; sewage exhausted by the paper-making workshop is treated by two fine mud tanks (1) and pumped by a mud pump (4) and then enters into a settling tank (3) and the sewage and clean water tank (2); and mud of the settling tank (3) is settled and then enters into the sewage and clean water tank (2). The paper-making sewage disposal zero release technique really realizes zero sewage release; a small paper mill saves hundreds of thousands of tons of water every year; and paper fiber and the sludge after treatment are reutilized, thereby saving the cost and realizing the multi-win situation of energy conservation, environmental protection and cost reduction.

Description

Technical field: [0001] The invention relates to a papermaking sewage treatment process, in particular to a papermaking sewage treatment zero discharge process. Background technique: [0002] The paper industry is known to be a major polluter, and many people think it is the source of pollution whenever paper is mentioned. The paper industry has indeed brought a lot of pollution, especially the pollution of water sources. At present, many paper-making enterprises have sewage treatment workshops to treat sewage, but none of them have achieved zero discharge of sewage. The papermaking industry uses clean water and discharges sewage. The amount of clean water that is discharged every day depends on the amount of clean water. While discharging a large amount of sewage, it also consumes a large amount of water resources. At present, some paper-making enterprises have used the water circulation system, but in the end they still need to discharge a large amount of waste water and ...

Claims

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Application Information

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IPC IPC(8): C02F1/52
Inventor 许金平
Owner 许金平
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