CN205045956U - Leather waste water integrated processing system - Google Patents
Leather waste water integrated processing system Download PDFInfo
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- CN205045956U CN205045956U CN201520755387.1U CN201520755387U CN205045956U CN 205045956 U CN205045956 U CN 205045956U CN 201520755387 U CN201520755387 U CN 201520755387U CN 205045956 U CN205045956 U CN 205045956U
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Abstract
The utility model provides a leather waste water integrated processing system, includes inlet tube, outlet pipe, is equipped with thick grid, thin grid, grit chamber, aeration equalizing basin, coagulating sedimentation tank, air supporting pond, hydrolysis -acidification pool, biological selection CASS pond, AO denitrogenation pond in proper order, two sinks ponds, sand filter at inlet tube, outlet pipe, leather waste water integrated processing system still is equipped with between sludge tihckener, sludge dewatering, and sludge tihckener leads to pipe and is linked together respectively and between grit chamber, coagulating sedimentation tank, air supporting pond, hydrolysis -acidification pool, AO denitrogenation pond, sludge dewatering. The utility model provides a pair of leather waste water integrated processing system area is few, easy operation, input cost are few, it is convenient to maintain, improves production efficiency and practices thrift the human cost, it is few to produce the mud volume, reduces back current cost input, handle totally, the leather wastewater effluent quality of water after this system handles is good, energy saving material, material that this system used and electric energy be saving very all.
Description
Technical field
The utility model relates to leather waste water treatment facility field, particularly a kind of leather waste water total system.
Background technology
At present, there is plant-scale tannery of family more than 600 in China, the small-sized tannery of family more than 15500, also has many individual workships that cannot add up.The ox-hide of annual processing more than 1,000 ten thousand, pigskin more than 7,500 ten thousand, more than 1,000 ten thousand, sheepskin.Wet processing in leather is produced all is carried out in water, a lot of leather chemical industry raw materials is also put in water to produce, but the industrial chemicals in water can not absorb completely again by raw material skin, such as, as the liming depilation operation in tanning production, the specific absorption of the lime used, sodium sulphite and Sodium sulfhydrate only has an appointment 10 ~ 30%, and when discharging from rotary drum, sulfide has mg/l, COD more than 3000 up to tens0000 mg/l; After the undue solution of albumen mass-energy be dissolved down from raw material skin in addition, the ammonia nitrogen concentration discharged is also high especially, causes the ratio of the ammonia-nitrogen content in processed sewage not have ammonia-nitrogen content before treatment also high; After the tensio-active agent used when processing leather is in addition discharged into waste water, not only more difficult removal, has also had influence on microbial growth; In leather making process, also using heavy metal chromium, being directly discharged in environment if do not reclaimed very big to environmental influence.
Utility model content
In order to solve the problem, the utility model provides that a kind of floor space is few, simple to operate, input cost is few, easy to maintenance, the efficient leather waste water total system completely of process.
A kind of leather waste water total system, comprise water inlet pipe, rising pipe, be provided with coarse rack, fine fack, settling pit, aerating regulation pond, coagulative precipitation tank, air flotation pool, hydrolysis acidification pool, bioselection CASS pond, A/O denitrification tank, second pond, sand filter successively at water inlet pipe, rising pipe; Described leather waste water total system is also provided with between sludge thickener, sludge dewatering, and sludge thickener is connected respectively with between settling pit, coagulative precipitation tank, air flotation pool, hydrolysis acidification pool, A/O denitrification tank, sludge dewatering by water pipe.
Further, be provided with filtrate return line between described sludge dewatering, filtrate return line is connected with aerating regulation pond.This design ensures that the emission standard that water all meets national regulation is discharged in all outflows, protection of the environment.
Further, be provided with horizontal helical type separating centrifuge between described sludge dewatering, mud, by horizontal helical type separating centrifuge drying and other treatment, can be used as agriculture fertilizer.
Further, described sand filter is provided with backwashing wastewater pipe, and backwashing wastewater pipe is connected with aerating regulation pond.Waste water after sand filter back flushing flows into aerating regulation pond and processes again.
A kind of leather waste water total system floor space that the utility model provides is few, simple to operate, input cost is few; Easy to maintenance, saving human cost of enhancing productivity; Generation sludge quantity is few, and after reducing, current cost drops into; Completely, the leather waste water effluent quality after native system process is good in process; Save energy material, the material that native system uses and electric energy saving all very.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of leather waste water total system of the utility model.
Embodiment
In order to better set forth the utility model, elaborate below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of leather waste water total system comprises water inlet pipe 1, rising pipe 13, is provided with coarse rack 2, fine fack 3, settling pit 4, aerating regulation pond 5, coagulative precipitation tank 6, air flotation pool 7, hydrolysis acidification pool 8, bioselection CASS pond 9, A/O denitrification tank 10, second pond 11, sand filter 12 successively in water inlet pipe 1, water outlet 13; Described leather waste water total system to be also provided with between sludge thickener 17, sludge dewatering 15, and sludge thickener 17 15 to be connected with between settling pit 4, coagulative precipitation tank 6, air flotation pool 7, hydrolysis acidification pool 8, A/O denitrification tank 10, sludge dewatering respectively by water pipe.
Concrete, between sludge dewatering, 15 are provided with filtrate return line 16, and filtrate return line 16 is connected with aerating regulation pond 5.This design ensures that the emission standard that water all meets national regulation is discharged in all outflows, protection of the environment.Between sludge dewatering, 15 are provided with horizontal helical type separating centrifuge, and mud, by horizontal helical type separating centrifuge drying and other treatment, can be used as agriculture fertilizer.Sand filter 12 is provided with backwashing wastewater pipe 14, and backwashing wastewater pipe 14 is connected with aerating regulation pond 5.Waste water after sand filter 12 back flushing flows into aerating regulation pond 5 and processes again.
Concrete, in the utility model, hydrolysis acidification pool 8 mainly changes comprehensive for leather waste water middle recalcitrant substance into readily biodegradable material, improves the biodegradability of waste water, is beneficial to follow-up Aerobic biological process.The product of hydrolysis, product acid phase is mainly small organic molecule, and biodegradable is generally better.Therefore hydrolytic tank can change raw waste water BOD/COD ratio, improve biodegradability, thus reduce the time of reaction and the energy consumption of process.Can reduce sludge quantity to the degraded of solid organic matters, this stage only produces the biological activated sludge of little difficult anaerobic degradation, the existing sewage of historical facts or anecdotes, the disposable process of mud.
Concrete, in the utility model, the biology in bioselection CASS pond 9 first experiences a high loading step of reaction at biological selector, then a underload step of reaction is experienced in main reaction region, the mud flco load that bioselection is wherein higher, the solvability easily biodegradable organics existed in waste water can be made to be adsorbed rapidly by enzyme transfer mechanism and absorb the accumulation carrying out substrate, then complete the degraded of substrate in the main reaction region that mud flco load is lower, thus achieve the regeneration of active sludge.The mud of regeneration is back to again in biological selector in certain proportion, carry out the accumulation again of mechanism, so constantly circulation completes biological " accumulation-regeneration ", experiment and practical application show, when the easily biodegradable organics matter higher than 75% is removed by enzyme transfer mechanism, then remain solubilized COD and be less than 100mg/L.
Concrete, in the utility model, A/O denitrification tank 10 is a kind of front establishment method, belong to single-stage active sludge denitrification process, namely a sludge recirculation system is only had, the feature of A/O technique is that raw wastewater is first through anoxic pond, then enters Aerobic Pond, and the mixed solution of Aerobic Pond and the mud of settling tank are back to anoxic pond simultaneously.
Concrete, during work, leather waste water is first by coarse rack 2, fine fack 3, settling pit 4, by the solids such as skin slag, cube meat in water and animal hair removing, enter aerating regulation pond 5, then by water pump lifting to coagulative precipitation tank 6, make the tiny solid thing such as the silt particle of not capacitive in water precipitation, water quality, the water yield and PH are regulated simultaneously, then carry out air flotation pool 7.Supernatant liquor after process enters hydrolysis acidification pool 8, improves the biodegradability of waste water.Then sewage after acidication enter bioselection CASS pond 9, fully mixes, carry out adsorbing and Metabolic activity with the aerobic bacteria, protozoon, metazoan etc. of pond Inner.Sewage after the process of bioselection CASS pond 9, ammonia nitrogen still can not be up to standard, therefore arranging A/O denitrification tank 10 thereafter, fully carries out denitrification and nitrification alternately across anoxic section and aerobic section, water outlet precipitates through second pond 11, sand filter 13 filters, and gets final product qualified discharge.The mud that the utility model system produces all drains into sludge thickener 17 and concentrates, the horizontal helical type separating centrifuge drying and other treatment be then provided with in 15 between sludge dewatering, fertile as agriculture.
Concrete treatment effect is in table 1.
Table 1 a: experimental data of the utility model system process leather waste water
As can be seen from Table 1, the leather waste water effluent quality entering native system process very good.
Above-mentioned embodiment can not be thought further restriction of the present utility model, and the unsubstantiality change that those skilled in the art make according to the utility model content all should fall in the utility model protection domain.
Claims (4)
1. a leather waste water total system, comprise water inlet pipe, rising pipe, it is characterized in that: between water inlet pipe, rising pipe, be provided with coarse rack, fine fack, settling pit, aerating regulation pond, coagulative precipitation tank, air flotation pool, hydrolysis acidification pool, bioselection CASS pond, A/O denitrification tank, second pond, sand filter successively; Described leather waste water total system is also provided with between sludge thickener, sludge dewatering, and sludge thickener is connected respectively with between settling pit, coagulative precipitation tank, air flotation pool, hydrolysis acidification pool, A/O denitrification tank, sludge dewatering by water pipe.
2. a kind of leather waste water total system as claimed in claim 1, it is characterized in that: be provided with filtrate return line between described sludge dewatering, filtrate return line is connected with aerating regulation pond.
3. a kind of leather waste water total system as claimed in claim 1, is characterized in that: be provided with horizontal helical type separating centrifuge between described sludge dewatering.
4. a kind of leather waste water total system as claimed in claim 1, it is characterized in that: described sand filter is provided with backwashing wastewater pipe, backwashing wastewater pipe is connected with aerating regulation pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520755387.1U CN205045956U (en) | 2015-09-28 | 2015-09-28 | Leather waste water integrated processing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520755387.1U CN205045956U (en) | 2015-09-28 | 2015-09-28 | Leather waste water integrated processing system |
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| CN205045956U true CN205045956U (en) | 2016-02-24 |
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| CN201520755387.1U Active CN205045956U (en) | 2015-09-28 | 2015-09-28 | Leather waste water integrated processing system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107235599A (en) * | 2017-06-12 | 2017-10-10 | 河北卓润环境科技有限公司 | The method that waste water is produced based on Strong oxdiative and the thin miscellaneous skin of multiple stage circulation biochemical treatment |
| CN108467165A (en) * | 2018-06-08 | 2018-08-31 | 江苏大楚环保设备有限公司 | A kind of efficient dephosphorization rural domestic sewage treatment system |
| WO2021114591A1 (en) * | 2019-12-12 | 2021-06-17 | 江苏奥尼斯环保科技有限公司 | Food industry wastewater treatment plant |
-
2015
- 2015-09-28 CN CN201520755387.1U patent/CN205045956U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107235599A (en) * | 2017-06-12 | 2017-10-10 | 河北卓润环境科技有限公司 | The method that waste water is produced based on Strong oxdiative and the thin miscellaneous skin of multiple stage circulation biochemical treatment |
| CN108467165A (en) * | 2018-06-08 | 2018-08-31 | 江苏大楚环保设备有限公司 | A kind of efficient dephosphorization rural domestic sewage treatment system |
| WO2021114591A1 (en) * | 2019-12-12 | 2021-06-17 | 江苏奥尼斯环保科技有限公司 | Food industry wastewater treatment plant |
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Effective date of registration: 20210917 Address after: Room 502, building 3, yard 1, Zhongguancun East Road, Haidian District, Beijing 100083 Patentee after: Tus Biology (Beijing) Technology Co.,Ltd. Address before: 350001 Fuxia industrial platform, Yanping District, Nanping City, Fujian Province Patentee before: NANPING CP OREEZYME BIOTECHNOLOGY DEVELOPMENT Co.,Ltd. |