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Low-consumption papermaking wastewater treatment system

A technology for papermaking wastewater and treatment system, which is applied in the fields of wastewater treatment during processing, multi-stage water treatment, and water treatment parameter control. Low requirements, mild processing and high purity

Active Publication Date: 2015-02-18
山西云冈纸业有限公司
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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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  • Low-consumption papermaking wastewater treatment system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

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

Embodiment 2

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

[0041] The connection relationship of the waste water tank, the fiber recoverer, the second flocculation and sedimentation tank, the biodegradation tank, the sludge tank and the reused water tank is the same as that of Embodiment 1.

Embodiment 3

[0043] There are more than two second flocculation-settling tanks, and more than two second flocculation-settling tanks are connected in series, and the water discharge end of the second flocculation-settling tank is connected to the inlet of the adjacent second flocculation-settling tank. At the water end, the upper, middle and bottom layers of all the second flocculation-settling tanks are respectively provided with drainage pipes connected to the biological settling tank, return pipes connected to the first flocculation-settling tank and sewage pipes connected to the sludge tank, All the second flocculation settling tanks share one sludge tank.

[0044] The connection relationship of the waste water tank, the fiber recoverer, the first flocculation and sedimentation tank, the biodegradation tank, the sludge tank and the reused water tank is consistent with that of Embodiment 1.

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Abstract

The invention discloses a low-consumption papermaking wastewater treatment system which comprises a wastewater pool, a first flocculating settling pool, a fiber recoverer, a second flocculating settling pool, a biological degrading pool and a reused water pool, wherein the wastewater pool is connected to the water inlet end of the first flocculating settling pool; the water discharging end of the first flocculating settling pool is connected to the water inlet end of the fiber recoverer through a pipeline; the water discharging end of the fiber recoverer is connected to the water inlet end of the second flocculating settling pool; the water discharging end of the second flocculating settling pool is connected to the water inlet end of the biological degrading pool; the water discharging end of the biological degrading pool is connected to the reused water pool; a sludge pool is arranged at the bottom of the first flocculating settling pool; the second flocculating settling pool comprises an upper layer, a middle layer and a bottom layer; a water drain pipe connected to a biological settling pool, a backflow pipe connected to the first flocculating settling pool and a sewage drain pipe connected to the sludge pool are respectively arranged at the upper layer, the middle layer and the bottom layer of the second flocculating settling pool. The low-consumption papermaking wastewater treatment system is thorough in wastewater treatment effect and low in energy consumption, and is favorable for popularization and application.

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 consumer, industrial production industries should do a good job in reducing industrial water discharge, improving water recycling rate, and avoiding industrial waste. Waste of water. [0003] At the same time, the problem of environmental pollution is becoming more and more serious. Improving environmental awareness and reducing pollutants, especially the discharge of sewage or wastewater from industrial production, is one of the important causes of environmental pollution. How to deal with the discharge of industrial sewage or wastewater has become a key factor in reducing environmental pollution an important mea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F1/52C02F3/00C02F9/00C02F2103/28C02F2209/08C02F2209/10C02F2301/08C02F2303/02
Inventor 吴彦
Owner 山西云冈纸业有限公司
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