Papermaking wastewater treatment apparatus

A treatment device and papermaking wastewater technology, which is applied in processing process wastewater treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. It can solve the problems of refractory macromolecules, wastewater difficult to meet standards, and large load , to achieve the effect of improving the degradation rate of pollutants, reducing energy consumption and long service life

Inactive Publication Date: 2015-06-17
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

However, sometimes pulping wastewater has high pollutant content, heavy load, and a large number of biodegradable macromolecules, so it is difficult for wastewater to meet the standard after traditional treatment.

Method used

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  • Papermaking wastewater treatment apparatus

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Embodiment Construction

[0036] A treatment device for papermaking wastewater, comprising a water storage tank, an initial filter tank, a fine filter tank, an air washing adjustment tower, a flocculation tank, an inclined tube sedimentation tank, a decolorization tank, an advanced oxidation tank, a plasma disinfection tank and a clean water tank connected in sequence by water pipes pool; a 70-mesh sieve is set in the primary filter, and a 130-mesh sieve is set in the fine filter; a flue gas inlet is provided at the lower part of the air washing regulating tower, which is used to introduce the coal-fired waste gas from the induced draft fan, and a filter is set at the bottom; There is a dosing device above the flocculation tank, and a mud discharge pipe at the bottom of the inclined tube sedimentation tank; an aerator is installed at the bottom of the decolorization tank; RuO 2 -IrO 2 -Tio 2 / Ti-coated anode, graphite cathode, the distance between the power supply and the two electrodes is 6cm, and th...

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Abstract

The invention discloses a papermaking wastewater treatment reuse apparatus. The apparatus comprises a water storage pool, a primary filtration pool, a fine filtration pool, a gas washing adjustment tower, a flocculation pool, an inclined tube settlement pool, a decoloring pool, an advanced oxidation pool, a plasma disinfection pool and a clear water pool which are sequentially connected through a water pipe. The apparatus disclosed in the invention has substantially higher pollutant removal ability than apparatuses in the prior art; and ultraviolet light is introduced into a three dimensional electrode / electro-Fenton reaction system, and an anode plate with an ultraviolet photocatalysis performance and a particle electrode are adopted to substitute traditional electrodes, so the photoelectro-synergistic catalysis reaction of the three dimensional electrode / electro-Fenton reaction system is carried out by using ultraviolet light, the energy consumption of the three dimensional electrode / electro-Fenton reaction system is reduced, a synergistic catalytic oxidation effect is generated, and organic pollutions are efficiently and rapidly degraded.

Description

technical field [0001] The invention relates to a treatment device for papermaking wastewater, which belongs to the field of water treatment in environmental protection. Background technique [0002] The paper industry occupies a certain position in the national economy, and the consumption level of paper and cardboard is one of the important symbols to measure the level of modernization and civilization. At the same time, it is well known that the paper industry is a major water polluter. Therefore, in order to control pollution and protect the environment, it is urgent to solve the problem of coordinated development of the paper industry and environmental protection. [0003] The pulping rate of general chemical pulping is about 45%-50%, that is, 45%-50% of the fiber raw materials will become waste in the pulping process. Even though the pulping rate of BCTMP (bleached chemical mechanical pulp) and APMP (alkaline hydrogen peroxide chemical mechanical pulp) which are now ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/08C02F103/28
Inventor 张一梅聂宇何理陆骏
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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