A treatment system for papermaking wastewater

A treatment system and technology for papermaking wastewater, applied in processing process wastewater treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the heavy task of wastewater pollution prevention, COD removal rate reduction, environmental pollution, etc. problems, to achieve the effect of reducing infrastructure investment and operating costs, reducing adverse effects, and reducing energy consumption

CN105060652BActive Publication Date: 2017-06-30DONGGUAN JINZHOU PAPER IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-06-30

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Abstract

The invention discloses a papermaking waste water treatment system. The papermaking waste water treatment system comprises a buffer pool, an oblique filter screen, a grit chamber, a high-speed filtering pool, a broken ice condensation pool, a rotary absorption pool, an aeration basin, a regulating pool, a biochemical reaction pool, a secondary sedimentation pool, a detention pool, an artificial fish pond, a water storage pool, a mud sump, a belt filter press and the like. The temperature in the broken ice condensation pool is subzero 5-15 DEG C. The removal rate of chemical oxygen demand of papermaking waste water treated by the system is up to 97.9%, the total nitrogen removal rate is up to 96.3%, the removal rate of the five-day chemical oxygen demand is up to 95.9%, the removal rate of suspended matter is up to 98.6%, the chroma removing rate is 98.1%, and the turbidity removal rate is up to 99.8%.
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Description

technical field

[0001] The utility invention relates to a treatment system for papermaking wastewater, which belongs to the field of water treatment in environmental protection. Background technique

[0002] At present, COD emissions in my country's paper industry wastewater discharge rank first among all types of industrial emissions, and the paper industry has the most serious pollution to the water environment. It is not only the primary issue of pollution prevention and control in my country's paper industry, but also the standard treatment of industrial wastewater in my country. primary issue. According to statistics, the discharge of industrial wastewater from papermaking and paper products at or above the county level in my country accounts for 18.6% of the total industrial discharge in the country, of which the amount of treatment discharges up to the standard accounts for 49.3% of the total discharge of wastewater from papermaking enterprises, and COD in the discharg...

Examples

Embodiment Construction

[0020] Such as figure 1 As shown, a papermaking wastewater treatment system, the system includes a buffer tank 1, inclined screen 2, grit chamber 3, high-speed filter tank 4, crushed ice condensation tank 5, rotary adsorption tank 6, aeration tank 7, regulating Pool 8, biochemical reaction tank 9, secondary sedimentation tank 10, retention tank 11, artificial fish pond 2, water storage tank 13, mud storage tank 14, belt filter press 15. The waste water from the paper mill enters the water inlet of the buffer tank 1 through the pipeline, the water outlet of the buffer tank 1 is connected to the water inlet of the inclined filter 2 through the pipeline, and the water outlet of the inclined filter 2 is connected to the water inlet of the grit chamber 3 through the pipeline, and the sedimentation The water outlet of the sand tank 3 is connected to the water inlet of the high-speed filter tank 4 through a pipeline, the water outlet of the high-speed filter tank 4 is connected to th...