Synusiologic processing method of paper manufacturing waste water

A technology for ecological treatment and papermaking wastewater, which is applied in processing wastewater treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc.

Inactive Publication Date: 2010-07-07
QUANZHOU HUAXIANG PAPER IND
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both air flotation and sedimentation are physical and chemical treatment methods, and the treatment effect is related to the selected equipment, process parameters, coagulant, etc., but the effect is still not ideal

Method used

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  • Synusiologic processing method of paper manufacturing waste water
  • Synusiologic processing method of paper manufacturing waste water

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Embodiment Construction

[0025] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0026] refer to figure 1 Shown, the ecological treatment method of papermaking wastewater of the present invention comprises steps:

[0027] Step 101: discharge waste water; enter

[0028] Step 102: screen filtering; enter

[0029] Step 103: discharge into sump; enter

[0030] Step 104: air flotation or sedimentation treatment; enter

[0031] Step 105: discharge into the sedimentation tank; enter step 1061 and step 1062,

[0032] Step 1061: pump into the anaerobic pond; also add a step 10611: add fertilizer, the fertilizer is nitrogen fertilizer and phosphorus fertilizer, preferably, the nitrogen fertilizer and phosphorus fertilizer are derived from human and animal manure; then enter step 107,

[0033] Step 1062: pump into the facultative pond; enter step 107,

[0034] Among them, the residence time of the wastewater in the anaerobic pond and ...

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Abstract

The present invention relates to the waste water processing field in environmental projects, and relates to the waste water processing field in paper manufacturing industry, in particular to a new technique for the clarification of paper manufacturing waste water by using a synusiologic method. The synusiologic processing method of the paper manufacturing waste water of the present invention comprises the steps of waster water discharge, mesh gauze filtration, collecting basin bleeding, air supporting or sendimentation process, sendimentation basin bleeding, anaerobic pond and facultative pond pumping, fertilizer feeding, stabilization pond bleeding, adjusting basin bleeding, clean water leading-in and ground runoff wetland system entrance. The synusiologic processing method of the paper manufacturing waste water of the present invention can enable the COD value and the SS value of complex waste water to obviously reduce, the pH value is closed to 7, and water quality is clean without flavor. The water quality is superior to the one-grade standard of water contaminant discharge of the paper manufacturing industry, and clean water needed by an adjusting basin can flow back into the adjusting basin without outer discharge, so complete cleaning self circulation is realized.

Description

technical field [0001] The invention relates to the field of waste water treatment in environmental engineering, to the field of waste water treatment in papermaking industry, and in particular to a new technological method for purifying papermaking waste water by using an ecological method. Background technique [0002] Papermaking wastewater (cooking black liquor, mid-stage wastewater, white water, etc.) produces a large amount of water, and consumes a lot of water per ton of products, most of which are discharged as wastewater. The pollutant concentration in the wastewater is high, and the composition is relatively complex. It contains a large amount of papermaking raw materials and chemicals. Oxygen consumption is serious, resulting in difficulties in the treatment of papermaking wastewater, and it has become one of the industries that seriously pollute the environment. Among them, it is most difficult to solve the pollution of alkaline straw pulp papermaking. If the pap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/28
Inventor 甘木林
Owner QUANZHOU HUAXIANG PAPER IND
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