Branching treatment method of pulp paper sludge and application of branching treatment products thereof

A treatment method and branched technology, applied in sludge treatment, water/sludge/sewage treatment, biological organic part treatment, etc. Eliminate the effects of valuable land occupation, increased investment costs, huge economic benefits and social and environmental benefits
CN103265153AActive Publication Date: 2013-08-28ASIA SYMBOL SHANDONG PULP & PAPER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ASIA SYMBOL SHANDONG PULP & PAPER
Publication Date
2013-08-28

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Abstract

The invention discloses a branching treatment method of pulp paper sludge and an application of branching treatment products thereof. The branching treatment method comprises the following steps of: (1) carrying out preliminary precipitation on the pulp paper sludge, and dehydrating a solid content to obtain a first branching treatment product serving as a cardboard paper raw material; (2) feeding wastewater separated out in the step (1) into a secondary-level biological aeration tank; (3) forming aeration wastewater, then precipitating for 2-4 hours, separating out the solid content, and obtaining a second branching treatment product serving as a biological organic fertilizer; (4) oxidizing the aeration wastewater without the solid content in an advanced oxidation fluidization bed to remove COD (Chemical Oxygen Demand), separating out black ferric oxide solid content in the oxidation process, and carrying out dehydration treatment; (5) feeding the wastewater in the step (4) into an air floatation decoloring system; (6) separating solid content chemical sludge from the wastewater in the air floatation decoloring system; and (7) dehydrating the chemical sludge, and obtaining a third branching treatment product serving as a power boiler raw material and a cement auxiliary material. The branching treatment method has the advantages that great environmental risks and potential safety hazards caused by sludge backfilling are eliminated, the products obtained by the branching treatment method can be recycled, and the purpose of turning waste into wealth is fully realized.
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Description

technical field

[0001] The invention relates to the field of environmental protection, in particular to a branch treatment method for pulp and paper sludge and an application of the branch treatment product. Background technique

[0002] With the economic development and the strengthening of environmental protection awareness, the sewage treatment business continues to develop, the total water treatment volume and treatment degree of sewage plants in various places continue to expand and improve, and the amount of sludge produced is also increasing. The investment and operating costs of sludge treatment and disposal are relatively high. If not disposed of properly, it will cause "secondary pollution". This has become a difficult problem in the field of environmental protection and has attracted much attention.

[0003] The main sludge disposal method in my country is landfill. However, there are many disadvantages of landfilling. It requires a large area of ​​land and high ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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