Paper manufacturing industry wastewater treatment method
A sewage treatment method and a papermaking industry technology, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of large occupied area and large energy consumption, and achieve saving The effect of reducing the floor area, improving purification efficiency, and saving energy consumption
Active Publication Date: 2016-04-20
JIANGSU TAIYUAN ENVIRONMENTAL PROTECTION TECH CO LTD
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[0004] From the above description, it can be seen that two sludge ponds are required in the current prior art paper industry sewage treatment method, resulting in a large occupied area and at least one sludge pump is required for each sludge pond, so the energy consumption is also relatively large.
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[0022] As shown in Figure 1, a kind of paper industry sewage treatment method comprises:
[0023] Step 1: The workshop drains into the sump, and the sewage in the workshop is discharged to the sump for buffering and collection;
[0024] Step 2: Drainage from the water collection tank enters the pipeline mixer, and the dosing operation is performed in the pipeline mixer;
[0025] Step 3: The pipeline mixer drains into the coagulation tank, and the sewage after dosing is sent into the coagulation tank for full coagulation to form flocculent sediment;
[0026] Step 4: The coagulation tank drains into the primary sedimentation tank, the sewage containing flocculent sediment in the coagulation tank is sent to the primary sedimentation tank for sedimentation, and the lower layer of sludge is sent to the sludge tank;
[0027] Step 5: The primary sedimentation tank drains into the hydrolysis acidification tank, and the sewage in the primary sedimentation tank is sent to the hydrolysi...
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The present invention relates to a wastewater treatment method, and in particular relates to a paper manufacturing industry wastewater treatment method comprising the following steps: step 1, water discharged from a workshop enters a water collection pool; step 2, water discharged from the water collection pool enters a pipeline mixer; step 3, water discharged from the pipeline mixer enters a coagulation pool; step 4, water discharged from the coagulation pool enters a primary settling tank; step 5, water discharged from the primary settling tank enters a hydrolysis acidification tank; step 6, water discharged from the hydrolysis acidification tank enters a contact oxidation pond; step 7, water discharged from the contact oxidation pond enters a secondary setting buffer pool; step 8, water discharged from the secondary setting buffer pool enters a fiber turntable filter pool; step 9, water is discharged from the fiber turntable filter pool; and step 10, sludge is discharged from a sludge tank.
Description
technical field [0001] The invention relates to a sewage treatment method, in particular to a papermaking industry sewage treatment method. Background technique [0002] A large amount of wastewater will be generated in the production of papermaking enterprises. If the wastewater is discharged directly without treatment, it will cause serious pollution to the environment. The existing sewage treatment system is not suitable for small and medium-sized paper-making enterprises due to its complex structure, high investment cost and excessive treatment process. [0003] At present, in the existing technology, the sewage treatment method of the paper industry is that the sewage discharged from the workshop will enter the sump to collect and buffer the sewage. After the sump collects the sewage, it enters the pipeline mixer to start adding drugs such as PAC and PAM. The sewage after dosing enters the coagulation tank to fully mix and flocculate the medicine and sewage, and the se...
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IPC IPC(8): C02F9/14
Inventor 陆纯潘海龙陆科
Owner JIANGSU TAIYUAN ENVIRONMENTAL PROTECTION TECH CO LTD