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A papermaking wastewater treatment system and method

A technology of papermaking wastewater and treatment system, which is applied in the direction of processing wastewater treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. Difficult to control conditions, unsatisfactory wastewater treatment effect, etc., to achieve ideal purification effect, improved degree, and improved efficiency

Active Publication Date: 2016-06-08
安徽景丰纸业有限公司
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Problems solved by technology

However, the conditions of three-phase anaerobic treatment in this method are difficult to control. In actual industrial applications, it is difficult to achieve the effect of complete anaerobic reaction, so that the entire process of wastewater treatment is in line with the principle. However, in practical applications, the effect of wastewater treatment not ideal

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  • A papermaking wastewater treatment system and method
  • A papermaking wastewater treatment system and method

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Embodiment Construction

[0035] The present invention will be further clarified below in conjunction with the drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and not to limit the scope of the present invention.

[0036] As can be seen from the attached drawings, a papermaking wastewater treatment system, including wastewater tank, first flocculation sedimentation tank, fly ash tank, second flocculation sedimentation tank, modified fly ash zeolite filter, biological sedimentation tank and reuse The wastewater pool is used to receive wastewater from the wastewater discharge pipeline of the papermaking workshop; the first flocculation sedimentation tank is equipped with a stirring device, and the bottom of the first flocculation sedimentation tank is provided with a sludge tank. The inlet end of the first flocculation sedimentation tank is connected to the waste water tank, and the outlet end of the first fl...

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Abstract

The invention relates to a papermaking wastewater treatment system and method. The wastewater treatment system includes a wastewater tank, a first flocculation sedimentation tank, a fly ash tank, a second flocculation sedimentation tank, a modified fly ash zeolite filter tank, and a biological A settling tank and a reuse pool; the wastewater treatment method includes the first step of flocculation and settlement, fly ash adsorption to remove impurities, the second step of flocculation settlement, modified fly ash zeolite adsorption and filtration and biological settlement steps. The invention removes harmful substances in waste water step by step, has ideal purification effect and short waste water treatment cycle.

Description

Technical field [0001] The invention relates to a papermaking wastewater treatment system and method, and belongs to the field of industrial wastewater treatment. Background technique [0002] The paper industry is a water-intensive and polluting industry. The organic matter (COD) discharged from paper-making wastewater accounts for about 25% of the total organic matter in industrial wastewater in my country, which seriously pollutes the environment. Therefore, zero discharge of paper-making wastewater is a water saving and pollution control. Practical production technology with equal emphasis has good economic benefits, and also has obvious social and environmental benefits. It is also a necessary choice for the paper industry to achieve sustainable development. [0003] The paper industry is a traditional big water user and one of the important sources of water pollution. With the development of the economy, companies are increasingly facing problems such as water shortages and l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F1/52C02F103/28
Inventor 沈国根文荣娟张林林
Owner 安徽景丰纸业有限公司
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