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Paper making wastewater treatment system

A technology of papermaking wastewater and treatment system, which is applied in the direction of processing wastewater treatment, multi-stage water treatment, water treatment parameter control, etc. It can solve the problems of fiber recovery, waste water reuse restrictions, and a large number of chemical agents, etc., to achieve equipment Low requirements, mild treatment process, high purity effect

Active Publication Date: 2016-09-21
乾坤环保股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a process requires the use of a large amount of chemicals, which remain in the treated wastewater, which brings many restrictions on the reuse of wastewater.
[0011] And neither of the two patents considers the issue of fiber recovery in wastewater, wasting the fiber in wastewater

Method used

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  • Paper making wastewater treatment system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] figure 1 It is a schematic diagram of the connection relationship of the equipment of the present invention. It can be seen from the accompanying drawings that the present invention includes a waste water tank, a first flocculation sedimentation tank, a fiber reclaimer, a second flocculation sedimentation tank, a biodegradation tank, a sludge tank and a reuse water tank. The waste water tank is connected to the waste water discharge pipeline from the papermaking workshop, the waste water in the waste water tank is transported to the water inlet end of the first flocculation settling tank through the waste water pipeline, and the water discharge end of the first flocculation settling tank passes through the pipeline Connected to the water inlet end of the fiber reclaimer, the water discharge end of the fiber reclaimer is connected to the water inlet end of the second flocculation sedimentation tank, and the water discharge end of the second flocculation sedimentation tank...

Embodiment 2

[0040] There are more than two first flocculation sedimentation tanks, and the two or more first flocculation sedimentation tanks are connected in series, and the water discharge end of the first flocculation sedimentation tank is connected to the inlet of the adjacent first flocculation sedimentation tank. At the water end, all the first flocculation sedimentation tanks share a sludge tank.

[0041]The connection relationship between the waste water tank, the fiber reclaimer, the second flocculation sedimentation tank, the biodegradation tank, the sludge tank and the recycling tank is the same as that in Example 1.

Embodiment 3

[0043] There are more than two second flocculation sedimentation tanks, and the two or more second flocculation sedimentation tanks are connected in series, and the water discharge end of the second flocculation sedimentation tank is connected to the inlet of the adjacent second flocculation sedimentation tank. At the water end, the upper, middle and bottom layers of all the second flocculation sedimentation tanks are respectively provided with a drain pipe connected to the biodegradation tank, a return pipe connected to the first flocculation sedimentation tank and a sewage pipe connected to the sludge tank, All the second flocculation sedimentation tanks share one sludge tank.

[0044] The connection relationship between the waste water tank, the fiber reclaimer, the first flocculation sedimentation tank, the biodegradation tank, the sludge tank and the recycling tank is the same as that in Example 1.

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Abstract

A paper making wastewater treatment system comprises a wastewater basin, a first flocculating settling basin, a fiber recoverer, a second flocculating settling basin, a biodegradation basin and a recycled water basin, wherein the wastewater basin is connected to the water inlet end of the first flocculating settling basin, the water discharge end of the first flocculating settling basin is connected to the water inlet end of the fiber recoverer, the water discharge end of the fiber recoverer is connected to the water inlet end of the second flocculating settling basin, the water discharge end of the second flocculating settling basin is connected to the water inlet end of the biodegradation basin, and the water discharge end of the biodegradation basin is connected to the recycled water basin; a sludge basin is arranged on the bottom of the first flocculating settling basin, the second flocculating settling basin comprises an upper layer, a middle layer and a bottom layer, and the upper layer, the middle layer and the bottom layer are provided with a drainage pipe connected to the biodegradation basin, a return pipe connected to the first flocculating settling basin and a blow-off pipe connected to the sludge basin respectively. The system can treat wastewater thoroughly, is low in energy consumption, and can be used and popularized easily.

Description

technical field [0001] The invention relates to a low-consumption papermaking wastewater treatment system, which belongs to the field of industrial wastewater treatment. Background technique [0002] Water is the source of life. The worldwide water scarcity problem is becoming more and more serious. Water conservation has always been advocated. As a large water user, the industrial production industry should do a good job in reducing the emission of industrial water, improve the recycling rate of water, and avoid industrial production. waste of water. [0003] At the same time, the problem of environmental pollution is becoming more and more serious. Raising awareness of environmental protection and reducing pollutants, especially the discharge of sewage or wastewater from industrial production, is one of the important causes of environmental pollution. an important measure. [0004] The paper industry is an industry that discharges serious polluted water sources. The pape...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/28C02F1/52
CPCC02F1/52C02F3/00C02F9/00C02F2103/28C02F2209/08C02F2209/10C02F2301/08C02F2303/02
Inventor 不公告发明人
Owner 乾坤环保股份有限公司