CN1336339A - Novel process technology for sewage treatment in seaweed processing industry - Google Patents
Novel process technology for sewage treatment in seaweed processing industry Download PDFInfo
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- CN1336339A CN1336339A CN01127310A CN01127310A CN1336339A CN 1336339 A CN1336339 A CN 1336339A CN 01127310 A CN01127310 A CN 01127310A CN 01127310 A CN01127310 A CN 01127310A CN 1336339 A CN1336339 A CN 1336339A
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- water
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- tangle
- cylindrical body
- waste water
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000012545 processing Methods 0.000 title claims abstract description 18
- 239000010865 sewage Substances 0.000 title claims abstract description 12
- 241001474374 Blennius Species 0.000 title claims abstract description 7
- 238000005516 engineering process Methods 0.000 title abstract description 7
- 239000007788 liquid Substances 0.000 claims description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- 239000002351 wastewater Substances 0.000 claims description 36
- 239000002893 slag Substances 0.000 claims description 28
- 238000007667 floating Methods 0.000 claims description 22
- 239000003292 glue Substances 0.000 claims description 22
- 238000001914 filtration Methods 0.000 claims description 19
- 238000005273 aeration Methods 0.000 claims description 10
- 230000029087 digestion Effects 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 238000012937 correction Methods 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 238000005325 percolation Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 8
- 239000004575 stone Substances 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 5
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 5
- 230000002308 calcification Effects 0.000 claims description 5
- 238000011026 diafiltration Methods 0.000 claims description 5
- 238000005189 flocculation Methods 0.000 claims description 5
- 230000016615 flocculation Effects 0.000 claims description 5
- 239000004571 lime Substances 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- 239000011435 rock Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 5
- 239000011575 calcium Substances 0.000 description 5
- 235000010413 sodium alginate Nutrition 0.000 description 5
- 229940005550 sodium alginate Drugs 0.000 description 5
- 239000000661 sodium alginate Substances 0.000 description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 150000001720 carbohydrates Chemical class 0.000 description 2
- 230000002354 daily effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009300 dissolved air flotation Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007863 gel particle Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a new process technology for treating sewage in seaweed processing industry, which solves the problems of high biochemical difficulty and high operating cost of the sewage treatment in the current seaweed processing industry. It has the advantages of good biochemical effect, low operation cost, increased economic benefit, less investment, etc.
Description
(1) technical field
The present invention relates to the sewage disposal of marine alga processing industry, special relevant with the sewage treatment process of this processing industry.
(2) background technology
Existing is the processing enterprise of main material production sodium alginate, iodine, alcohol with the sea-tangle, and the situation of discharge of wastewater is as follows in whole process of production:
1, sea-tangle pretreated waste water
Mainly the waste water that is produced in the sea-tangle treating processes before the finger sea-tangle digestion process mainly is the sea-tangle washing water.As being that raw materials for production must carry out immersion treatment with dried sea-tangle, soak water and enter the iodohydrin production plant as the raw materials for production that extract iodohydrin, generally do not efflux; Soaked sea-tangle enters washing procedure, and this operation produces a large amount of washing water and effluxes, and quantity discharged accounts for about 30% of total release.It is mainly graded and is formed by small sea-tangle skin, silt, carbohydrate gum, alcohol, formaldehyde, polyose colloid, salt, and organic loading is higher, and pH value is neutral.
2, floating slag liquid
Sea-tangle enters floating operation after digestion process.Through floating collect clear glue solution after, residue weakly alkaline floating slag liquid effluxes, discharging slag liquid measure accounts for about 12% of total release.It mainly is made up of the sea-tangle piece of not complete digestion, sea-tangle fiber, carbohydrate gum, sodium alginate glue etc., the organic loading height, and wherein suspended substance (SS) accounts for more than 95% of quantity discharged, and pH value is about 8.
3, calcium is analysed waste water
The above-mentioned clear glue solution of collecting enters calcium and analyses operation, carries out producing a large amount of calcic waste water after the calcification processing, accounts for about 40% of total release, and major ingredient has Ca
2+, Mg
2+, ClO
-, calcification glue particle etc., pH value is 8-9.
4, decalcification waste water
Calcium is analysed glue and is entered decalcification operation generation acid-bearing wastewater, and its pH value is about 2, and quantity discharged accounts for the 3-5% of total release.
5, squeeze water
Lalgine after the decalcification is through press dewatering operation discharging squeeze water, and its pH value is about 2, has a little seaweed gel particle, and quantity discharged accounts for about 5% of total release.But collect clear glue solution described in above-mentioned 3,4, the 5 described waste water appellations 2 it is carried out the waste water that following process produced.
At present, marine alga processing enterprise adopts calcium to analyse floating slag, sedimentation solid-liquid separation, composite wastewater to the improvement of above-mentioned sewage to carry out the aeration biochemical treatment process mostly.Because its aforementioned several Waste Water Centralized aftertreatments, the comprehensive water body salt content after this concentrating is higher, complicated component, the organic loading fluctuation is big, be unfavorable for microbial growth, must have influence on composite wastewater and carry out the effect that aeration biochemical is handled, make wastewater treatment efficiency not satisfactory.In addition, because the floating slag liquid in above-mentioned 2 directly is drained in the pending waste water, it has not only wasted a large amount of glues that contain in the floating slag liquid, also can bring very big disadvantageous effect to sewage disposal; It also has defectives such as investment is big, working cost is high, labour intensity is big.
(3) summary of the invention
Task of the present invention is to solve that prior art mesophytization intractability is big, the unfavorable problem of effect, and comparatively ideal technology technology of a kind of marine alga processing industry wastewater treatment efficiency is provided.
Further task of the present invention is on the basis that solves above-mentioned task, reclaims glue from floating slag liquid, increases economic benefit.
For realizing invention task one, technical solution of the present invention is:
The novel technique of marine alga processing industry of the present invention sewage disposal has following steps:
A, the sea-tangle pretreated waste water that is produced before the sea-tangle digestion process carried out biological chemistry handle, promptly the sea-tangle pretreated waste water is carried out aeration oxygen replenishing biochemistry after, carry out the pulp water separation with the air supporting mode again, the water body that obtains after the separation enters step c:
B, remaining floating slag liquid carries out individual curing when collecting clear glue solution after the sea-tangle digestion process;
C, the water body after above-mentioned steps a biological chemistry handled carry out waste water that following process the produced water body after comprehensive and carry out the materialization processing with the above-mentioned clear glue solution of collecting, promptly adopt the air supporting mode to carry out pulp water to above-mentioned water body after comprehensive and separate, isolated water liquid carries out filtration treatment.
The present invention carries out biochemical treatment separately to the sea-tangle pretreated waste water that accounts for total release about 30%, because its water conditioning, the characteristics that biodegradability is stronger, at this it is carried out biochemical treatment, having overcome prior art, this part waste water and follow-up many waste water to be carried out the biochemical treatment difficulty after comprehensive big, be difficult to the defective of realization, also overcome simultaneously in the prior art the inconvenient biochemical relatively large follow-up waste water in total release 60% left and right sides that accounts for has together been carried out the high problem of running cost that biochemical treatment brought, therefore, the sea-tangle pretreated water that accounts for total release about 30% is carried out independent biochemical treatment, except that treatment effect is arranged preferably, also can significantly reduce working cost, reduce the burden on enterprises.
As a further improvement on the present invention, it is to realize like this that the biological chemistry of above-mentioned steps a is handled, before carrying out aeration oxygen replenishing biochemistry, carry out the water correction of sea-tangle pretreated waste water and handle, it is a kind of natural rock mud stone of throwing in the pending waste water of water correction treating pond that this water correction is handled.Natural rock mud stone, quality is softer, and many grays, blue green, brown can not occur loosening in immersion process, the weathering phenomenon, its main amount SiO
2, Al
2O
3, Fe
2O
3, multiple oxide compound (percentage composition meter) such as NaO, tens kinds of elements (PPM level meter) such as Co, Zn, Sr, Zr, Rb, Ba, through facts have proved, utilization mud stone improves processing to the above-mentioned water quality of waste water, pending waste water quality will be significantly improved, become clear, suspended substance increase etc. as water body by muddiness, help aeration oxygen replenishing biochemistry.This mud stone is distributed more widely in China, as the Northeast, Hebei, Shaanxi, Shandong, Jiangsu and other places distribution is arranged all.
For realizing task two of the present invention, on the basis of invention task one solution, it is to realize like this that the floating slag liquid of above-mentioned steps b carries out individual curing, above-mentioned floating slag liquid is added after flocculation agent carries out chemical flocculation, carry out roughing out through percolation machine, after the glue that smart filtration obtains enters the calcification operation in the seaweed gel production; This percolation machine adopts following structure, it has an outer screen cloth cylindrical body of wrapping up in that can turn round, the inner chamber of cylindrical body has a fixed to treat filter residue liquid transfer lime, treat that filter residue liquid transfer lime has liquid feeding end and outlet end, intrinsic somely turn round on the internal chamber wall of cylindrical body with cylindrical body, and perpendicular to the annular of the lumen centers axis of cylindrical body or near the straight flow deflector of annular, straight flow deflector is separated into some chambers with the inner chamber of cylindrical body, all chambers are connected successively by the porthole of offering on the straight flow deflector, all chambers are arranged and are followed successively by some filtering chamber, some percolating chamber, some deslagging chambers, all filtering chamber constitute fillter section, and all percolating chamber constitute the diafiltration section, and all deslagging chambers constitute the deslagging section, the slag liquid of above-mentioned outlet end output mainly sprays in the filtering chamber of fillter section, and above-mentioned deslagging section has slag-drip opening.Because the percolation machine that this process is used has the advantages that but the good filtration effect serialization is uninterruptedly carried out, has higher production efficiency, the glue that contains in the floating slag liquid can be recycled comparatively completely, as producing 18m in sea-tangle per ton (is 120 times of meters towards rare multiple)
3Floating slag liquid can get glue 15m through aforementioned filtration
3About, the glue solid content of this glue is more than 1.5 ‰, gets about about 22 kilograms of finished product sodium alginate, to produce 1 ton of sodium alginate daily, the seaweed gel finished product that every day is recyclable about 100 kilograms can increase considerable economic.Simultaneously, also overcome in the prior art floating slag liquid is drained into postorder, comprehensive together to handle the difficulty of being brought big with other waste water, defect of high cost.
The present invention also has advantages such as less investment, working cost be low, to produce one ton of sodium alginate daily, about about 700,000 yuan of gross investment, the about 40KW of total installation of generating capacity, the every M of composite wastewater processing costs (comprising the electricity charge, labour cost, maintenance cost etc.)
30.5 about unit.
(4) description of drawings
Fig. 1 is a kind of process flow sheet of step a
Fig. 2 is a kind of process flow sheet of step b
Fig. 3 is a kind of process flow sheet of step c
Fig. 4 is aforementioned percolation machine structural principle synoptic diagram
The drawing explanation: 1 for wrapping up in the screen cloth cylindrical body outward, and 2 for treating filter residue liquid transfer lime, and 3 is straight flow deflector, and 4 for leaching receiving channel, 5 is the porthole, and 6 is slag-drip opening, and 7 is liquid outlet, and 8 for treating filter residue liquid surge chamber, 9 is nozzle, and 10 is the cylindrical body left side brackets, and 11 is cylindrical body right side support.
(5) specific embodiment
The sea-tangle pretreated waste water that produces before the sea-tangle digestion process is carried out biochemistry processes, After namely the sea-tangle pretreated waste water being carried out aeration oxygen replenishing biochemistry, carry out the pulp water branch with the air supporting mode again From, the water body that obtains after the separation enters step c. This biochemical treatment can be adopted sewage treatment area Prior art, as adopt aeration oxygen replenishing of the prior art, dissolved air flotation mode and facility. Certainly also can adopt other can realize the facility of aforesaid way. Carrying out aeration oxygen replenishing biochemistry Before, can carry out the water correction of sea-tangle pretreated waste water and process, it is at water that this water correction is processed Matter is improved and is thrown in a kind of natural stone mud stone in the pending waste water for the treatment of pond (pretreatment pool) Claim again what green sandstone was realized. This process flow process can be as shown in Figure 1.
Remaining floating slag liquid is processed separately when collecting clear glue solution after the sea-tangle digestion process. Should process separately referring to produce fertilizer with floating slag liquid, use cagem type filter filters, its slag Class drying and other treatment glue is recycled, and reason etc. is filled out in outward transport. Certainly, take adopt following manner as Good, namely above-mentioned floating slag liquid is added after flocculant carries out chemical flocculation, flocculant adopts existing Technology gets final product, and carries out crude separation through percolation machine, the glue that the obtains filtrations such as plate and frame filter Enter the calcification operation in the algin production after (the smart filtration), its technological process can be shown such as Fig. 2. Above-mentioned percolation machine adopts following structure (showing such as Fig. 4), and it has an outer screen cloth of wrapping up in that can turn round Cylindrical body, the inner chamber of cylindrical body has a fixing filter residue liquid carrier pipe 2 for the treatment of, carrier pipe 2 has Liquid feeding end and outlet end treat that filter residue liquid carrier pipe 2 drain pipes have nozzle 9, and outlet end also can have Tubulose is treated filter residue liquid surge chamber 8, and surge chamber 8 is furnished with some nozzles of evenly arranging 9, tubular Intrinsic some with cylindrical body running on the internal chamber wall of body, and perpendicular to the lumen centers axle of cylindrical body The annular of line or the straight deflector 3 of approaching annular, straight deflector is separated into some chambers with cylindrical body, The passway 5 that all chambers are offered by straight deflector is connected successively, and passway 5 can be opened in and lead The near cylindrical body inner chamber of stream plate 3 edge, it is 1,2,3,4 etc. individual that its quantity can be, with quantity 1,2 is good, and passway 5 can be extended by the inside chamber of cavity edge in cylindrical body central axis, this The time each straight deflector can be divided into some parts. All chambers are arranged and are followed successively by some filtrations Chamber, some percolating chamber, some deslagging chambers above-mentionedly somely can be 1,2,3,4,5 Deng, three's quantity can be not identical, and all filtering chamber consist of fillter section I, all diafiltration chambeies The chamber consists of diafiltration section II, and all deslagging chambers consist of deslagging III, and above-mentioned outlet end is by nozzle 9 The slag liquid of output mainly sprays in fillter section I filtering chamber, and the deslagging section has slag-drip opening 6. Its operation principle is roughly, and waits to filter that floating slag liquid enters surge chamber 8 by carrier pipe 2 and by nozzle 9 are ejected in the chamber of fillter section I, and cylindrical body 1 average rate is rotated continuously, treat that filter residue liquid is in mistake Reach the decomposing force (multidirectional power) of facilitating at deflector by it from gravity, centrifugal force in the filter chamber, Reach enough big filter area and form good filtration channel, it is big to finish filtration work in this section Section; Surplus slag liquid enters in the next chamber successively through the passway of straight deflector, laggardly enters diafiltration The chamber of section II, its course of work are able to the solid-liquid of surplus slag liquid with fillter section I at this section Further separate, and isolated slag thing pushed in the deslagging chamber of deslagging section III, afterwards by Slag-drip opening is discharged. So run without interruption, realize waiting to filter floating slag liquid serialization Separation of Solid and Liquid.
Carry out follow-up to water body and the above-mentioned clear glue solution of collecting after the processing of above-mentioned steps a biochemistry Water body after the waste water that machining produces is comprehensive carries out materialization to be processed, namely to above-mentioned water after comprehensive Body adopts the air supporting mode to carry out pulp water to separate, and the water liquid that obtains (isolating) such as filters at the place Reason; This materialization processing mode and facility adopt the sewage treatment area prior art to get final product. Its technology Flow process can be as shown in Figure 3.
The present invention can summarize without prejudice to spirit of the present invention or principal character with other, above-mentioned reality The mode of executing is that explanation of the present invention is not limited the present invention, therefore, with right of the present invention Any change in the implication that claim is suitable and the scope all should think to be included in the scope of book.
Claims (3)
1, the novel technique of a kind of marine alga processing industry sewage disposal has following steps:
A, the sea-tangle pretreated waste water that is produced before the sea-tangle digestion process carried out biological chemistry handle, promptly the sea-tangle pretreated waste water is carried out aeration oxygen replenishing biochemistry after, carry out the pulp water separation with the air supporting mode again, the water body that obtains after the separation enters step c;
B, remaining floating slag liquid carries out individual curing when collecting clear glue solution after the sea-tangle digestion process;
C, the water body after above-mentioned steps a biological chemistry handled carry out waste water that following process the produced water body after comprehensive and carry out the materialization processing with the above-mentioned clear glue solution of collecting, promptly adopt the air supporting mode to carry out pulp water to above-mentioned water body after comprehensive and separate, isolated water liquid carries out filtration treatment.
2, novel technique according to claim 1, it is characterized in that: it is to realize like this that the biological chemistry of described step a is handled, before carrying out aeration oxygen replenishing biochemistry, carry out the water correction of sea-tangle pretreated waste water and handle, it is to throw in a kind of natural rock mud stone in the pending waste water of water correction treating pond that this water correction is handled.
3, novel technique according to claim 1 and 2, it is characterized in that: the floating slag liquid individual curing of described step b is to realize like this, above-mentioned floating slag liquid is added after flocculation agent carries out chemical flocculation, carry out roughing out through percolation machine, after the glue that smart filtration obtains enters the calcification operation in the seaweed gel production; Described percolation machine adopts following structure, it has an outer screen cloth cylindrical body of wrapping up in that can turn round, the inner chamber of cylindrical body has a fixed to treat filter residue liquid transfer lime, treat that filter residue liquid transfer lime has liquid feeding end and outlet end, intrinsic somely turn round on the internal chamber wall of cylindrical body with cylindrical body, and perpendicular to the annular of the lumen centers axis of cylindrical body or near the straight flow deflector of annular, straight flow deflector is separated into some chambers with the inner chamber of cylindrical body, all chambers are connected successively by the porthole of offering on the straight wire guide plate, all chambers are arranged and are followed successively by some filtering chamber, some percolating chamber, some deslagging chambers, all filtering chamber constitute fillter section, all percolating chamber constitute the diafiltration section, all deslagging chambers constitute the deslagging section, the slag liquid of above-mentioned outlet end output, mainly spray in the filtering chamber of fillter section, above-mentioned deslagging section has slag-drip opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011273100A CN1202030C (en) | 2001-08-07 | 2001-08-07 | Sewage treatment method for seaweed processing industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011273100A CN1202030C (en) | 2001-08-07 | 2001-08-07 | Sewage treatment method for seaweed processing industry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1336339A true CN1336339A (en) | 2002-02-20 |
| CN1202030C CN1202030C (en) | 2005-05-18 |
Family
ID=4667281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011273100A Expired - Fee Related CN1202030C (en) | 2001-08-07 | 2001-08-07 | Sewage treatment method for seaweed processing industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1202030C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701513A (en) * | 2011-11-29 | 2012-10-03 | 青岛聚大洋海藻工业有限公司 | New process for wastewater recycling comprehensive treatment in alga processing |
| CN105293812A (en) * | 2014-06-23 | 2016-02-03 | 高嵩 | Sewage treatment method suitable for seaweed processing industry |
| CN105523664A (en) * | 2015-12-24 | 2016-04-27 | 山东省环保产业股份有限公司 | Algin production wastewater pretreatment method |
-
2001
- 2001-08-07 CN CNB011273100A patent/CN1202030C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701513A (en) * | 2011-11-29 | 2012-10-03 | 青岛聚大洋海藻工业有限公司 | New process for wastewater recycling comprehensive treatment in alga processing |
| CN102701513B (en) * | 2011-11-29 | 2014-10-01 | 青岛聚大洋藻业集团有限公司 | New process for wastewater recycling comprehensive treatment in alga processing |
| CN105293812A (en) * | 2014-06-23 | 2016-02-03 | 高嵩 | Sewage treatment method suitable for seaweed processing industry |
| CN105523664A (en) * | 2015-12-24 | 2016-04-27 | 山东省环保产业股份有限公司 | Algin production wastewater pretreatment method |
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| Publication number | Publication date |
|---|---|
| CN1202030C (en) | 2005-05-18 |
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