CN202643502U - Regenerated papermaking wastewater treatment system - Google Patents
Regenerated papermaking wastewater treatment system Download PDFInfo
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- CN202643502U CN202643502U CN 201220241166 CN201220241166U CN202643502U CN 202643502 U CN202643502 U CN 202643502U CN 201220241166 CN201220241166 CN 201220241166 CN 201220241166 U CN201220241166 U CN 201220241166U CN 202643502 U CN202643502 U CN 202643502U
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Abstract
The utility model belongs to the technical field of papermaking wastewater purification treatment. The utility model discloses a papermaking wastewater treatment system, which comprises a collecting well, an inclined screen, a floatation tank, a pollutant filter tank, an anaerobic tank, an aerobic tank, a secondary sedimentation tank and a sludge thickening tank, wherein the collecting well is connected with the inclined screen, the floatation tank, the pollutant filter tank, the anaerobic tank, the aerobic tank and the secondary sedimentation tank in sequence through a pipeline; the pollutant filter tank is provided with a pipeline connected with a papermaking water tank; the anaerobic tank, the aerobic tank and the secondary sedimentation tank are respectively provided with a sludge reflux pipeline connected with the sludge thickening tank. Most of papermaking wastewater purified by the treatment system disclosed by the utility model can be recycled, and little can be directly discharged. Moreover, fine fibers and digestion gas obtained after the papermaking wastewater is treated are utilized, and thereby, the goal of recycling resources is achieved in deed, and an energy saving effect is good.
Description
Technical field
The utility model relates to a kind of Waste Water Treatment, is specifically related to a kind of production wastewater treatment system that utilizes regenerated papermaking.
Background technology
Mainly contain the pollutents such as hemicellulose, xylogen, inorganic salt, fiber fines, starch, titanium dioxide and printing ink, fuel in the waste water of papermaking enterprise discharging.Main CODcr, the BOD that forms in the waste water such as xylogen, hemicellulose, starch
5And suspended substance; The main suspended substance that forms such as fiber fines.The factory effluent pollution load of regenerated papermaking discharging is relatively high, but BOD
5Be worth lowlyer, so biodegradability is relatively poor.But since in the type waste water generally non-solubility CODcr account for the major part that COD forms, after the suspended substance in the waste water was removed, the CODcr of most of non-solubility also was removed simultaneously.Therefore for this type of waste water, before advanced treatment, should strengthen the pre-treatment to waste water.
Existing method of wastewater treatment is: Workshop Production waste water flows to equalizing tank certainly after the slanted screen recycled fiber, then be promoted to settling tank with pump, waste water is promoted to air flotation pool with pump again and processes after settling tank is processed, the anoxic pond that gravity flow entered biochemical treatment system after air supporting was processed, in anoxic pond, improve the biodegradability of waste water by the Degradation of the oxygen flora of holding concurrently, and the degraded some organic pollutants.Aerobic Pond water outlet gravity flow enters second pond and carries out mud-water separation, the supernatant liquor qualified discharge, and the settling tank bed mud is partly refluxed to anoxic pond, to increase the sludge concentration in the biochemistry pool.Excess sludge regularly is disposed to original sludge sump, and by the sludge dewatering system dehydration and drying.The lower water of filter reenters Waste Water Treatment from flowing to equalizing tank, and dehydrated sludge is transported to environmental administration's appointed place landfill outward, avoids secondary pollution.
This process operation effect is relatively good, and water outlet can reach the environment protection emission requirement, and the second pond water outlet reaches the reuse requirement after filtering.But working cost is higher in this process operation process, and direct working cost is processed waste water per ton and reached 0.5 yuan.Directly the electricity charge account for 70% in the working cost.In order to make the paper waste recycling and to reduce the running cost of enterprise, alleviate environmental capacity and pollutant discharge of enterprise expense, this patent undergoes technological transformation to this treatment process, reaches paper waste and processes and recycling.
Summary of the invention
The purpose of this utility model addresses the above problem exactly, provides a kind of operating cost low Waste Water Treatment, and this system can not only make water outlet up to standard, and can recycle, and running cost is low.
For reaching above-mentioned purpose, the technical scheme that the utility model is taked is as follows:
A kind of papermaking wastewater treatment system, comprise pump well, slanted screen, air flotation pool, receive dirty filter tank, anoxic pond, Aerobic Pond, second pond and sludge thickener, pump well and slanted screen, air flotation pool, receive dirty filter tank, anoxic pond, Aerobic Pond and be connected with second pond and be connected by pipeline; Receiving dirty filter tank also is provided with pipeline and is connected with the paper grade (stock) pond; Anoxic pond, Aerobic Pond and second pond also are respectively equipped with sludge return pipe, are connected with sludge thickener.
Further, above-mentioned papermaking wastewater treatment system also is provided with fibrous recovery unit, reclaims the fiber fines at slanted screen and air flotation pool place, can be for the production of the mud paperboard.
Further, the fresh water pipeline of second pond also is connected with sand filtering device and sand filter, and clear water is through being used for the paper machine room water after the sand filtration.
Further, the sludge thickener of above-mentioned papermaking wastewater treatment system also is connected with the anaerobic sludge digestion pond, the flue in anaerobic sludge digestion pond is connected with cryophorus, the sludge pipe in anaerobic sludge digestion pond is connected with pressure filter, and cryophorus flue gas is out directly recycled through gas holder after thionizer is processed.
The beneficial effects of the utility model:
The water quality of waste paper making wastewater outlet is: COD
Cr≤ 1500mg/L; BOD
5≤ 500mg/L; SS≤800mg/L; PH=6～9.Most of water can recycle after purifying through treatment system of the present utility model, and small part can directly be discharged, and processes the fiber fines and the digestive gas that obtain and all obtain utilizing, and really accomplishes the recovery of resource, good energy-conserving effect.
Below in conjunction with drawings and Examples the technical solution of the utility model is done clearly explanation:
Description of drawings
Fig. 1 is papermaking wastewater treatment system structural representation described in the utility model.
Embodiment
As shown in Figure 1, papermaking wastewater treatment system described in the utility model, comprise pump well, slanted screen, air flotation pool, receive dirty filter tank, anoxic pond, Aerobic Pond, second pond and sludge thickener, pump well and slanted screen, air flotation pool, receive dirty filter tank, anoxic pond, Aerobic Pond and be connected with second pond and be connected by pipeline; Receiving dirty filter tank also is provided with pipeline and is connected with the paper grade (stock) pond; Anoxic pond, Aerobic Pond and second pond also are respectively equipped with sludge return pipe, are connected with sludge thickener.
Above-mentioned papermaking wastewater treatment system also can arrange fibrous recovery unit, reclaims the fiber fines at slanted screen and air flotation pool place, can be for the production of the mud paperboard.
Further, the fresh water pipeline of second pond also can be connected with sand filtering device and sand filter, and clear water is through being used for paper machine room starch adhesive water after the sand filtration.
Further, the sludge thickener of above-mentioned papermaking wastewater treatment system also can be connected with the anaerobic sludge digestion pond, the flue in anaerobic sludge digestion pond is connected with cryophorus, the sludge pipe in anaerobic sludge digestion pond is connected with pressure filter, cryophorus flue gas is out directly recycled through gas holder after thionizer is processed, and is a kind of good thermal source.
Major part can recycle after purifying through treatment system of the present utility model, and small part can directly be discharged, and processes the fiber fines and the digestive gas that obtain and all obtain utilizing, and really accomplishes the recovery of resource, good energy-conserving effect.Water quality meet the requirement of environmental protection after the processing: COD
Cr≤ 100mg/L; BOD
5≤ 30mg/L; SS≤70mg/L; PH=6～9.
Claims (4)
1. papermaking wastewater treatment system, it is characterized in that: comprise pump well, slanted screen, air flotation pool, receive dirty filter tank, anoxic pond, Aerobic Pond, second pond and sludge thickener, pump well and slanted screen, air flotation pool, receive dirty filter tank, anoxic pond, Aerobic Pond and be connected with second pond and be connected by pipeline; Receiving dirty filter tank is provided with pipeline and is connected with the paper grade (stock) pond; Anoxic pond, Aerobic Pond and second pond are respectively equipped with sludge return pipe, are connected with sludge thickener.
2. papermaking wastewater treatment system as claimed in claim 1 is characterized in that: be provided with fibrous recovery unit, reclaim the fiber fines at slanted screen and air flotation pool place.
3. papermaking wastewater treatment system as claimed in claim 1, it is characterized in that: the fresh water pipeline of second pond is connected with sand filtering device and sand filter, and clear water is through being used for the paper machine room water after the sand filtration.
4. papermaking wastewater treatment system as claimed in claim 1, it is characterized in that: be provided with anaerobic sludge digestion pond, cryophorus, thionizer and gas holder, the entrance in anaerobic sludge digestion pond is connected with sludge thickener, the flue in anaerobic sludge digestion pond is connected with the cryophorus entrance, the outlet of cryophorus is connected with thionizer, and the outlet conduit of thionizer is connected with gas holder; The sludge pipe in anaerobic sludge digestion pond is connected with pressure filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220241166 CN202643502U (en) | 2012-05-23 | 2012-05-23 | Regenerated papermaking wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220241166 CN202643502U (en) | 2012-05-23 | 2012-05-23 | Regenerated papermaking wastewater treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202643502U true CN202643502U (en) | 2013-01-02 |
Family
ID=47412638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220241166 Expired - Fee Related CN202643502U (en) | 2012-05-23 | 2012-05-23 | Regenerated papermaking wastewater treatment system |
Country Status (1)
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| CN (1) | CN202643502U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395935A (en) * | 2013-08-02 | 2013-11-20 | 江苏和顺环保股份有限公司 | Sewage treatment process |
| CN103466884A (en) * | 2013-09-12 | 2013-12-25 | 安徽省绿巨人环境技术有限公司 | Process for treating waste paper pulping and papermaking waste water |
| CN105016585A (en) * | 2015-08-11 | 2015-11-04 | 怀宁县天元纸业有限公司 | Regenerated papermaking wastewater treatment system |
| CN106946418A (en) * | 2017-05-15 | 2017-07-14 | 浙江荣晟环保纸业股份有限公司 | The pulping wastewater treatment and method of comprehensive utilization of a kind of low emission |
| CN110204091A (en) * | 2019-05-31 | 2019-09-06 | 永发（江苏）模塑包装科技有限公司 | A kind of method that paper mould industrial water recycles |
-
2012
- 2012-05-23 CN CN 201220241166 patent/CN202643502U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395935A (en) * | 2013-08-02 | 2013-11-20 | 江苏和顺环保股份有限公司 | Sewage treatment process |
| CN103466884A (en) * | 2013-09-12 | 2013-12-25 | 安徽省绿巨人环境技术有限公司 | Process for treating waste paper pulping and papermaking waste water |
| CN105016585A (en) * | 2015-08-11 | 2015-11-04 | 怀宁县天元纸业有限公司 | Regenerated papermaking wastewater treatment system |
| CN106946418A (en) * | 2017-05-15 | 2017-07-14 | 浙江荣晟环保纸业股份有限公司 | The pulping wastewater treatment and method of comprehensive utilization of a kind of low emission |
| CN110204091A (en) * | 2019-05-31 | 2019-09-06 | 永发（江苏）模塑包装科技有限公司 | A kind of method that paper mould industrial water recycles |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20170523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |