CN86106871A - Diatomite is handled organic waste waters such as papermaking - Google Patents
Diatomite is handled organic waste waters such as papermaking Download PDFInfo
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- CN86106871A CN86106871A CN 86106871 CN86106871A CN86106871A CN 86106871 A CN86106871 A CN 86106871A CN 86106871 CN86106871 CN 86106871 CN 86106871 A CN86106871 A CN 86106871A CN 86106871 A CN86106871 A CN 86106871A
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- waste water
- diatomite
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- processing waste
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Abstract
The invention discloses a kind of diatomite treatment water technology, used diatomite is handled through special calcining sheet before activation, possessed very strong processing effect, can be used for the processing of various organic waste waters, be particularly suited for handling the paper waste that COD content is higher, intractability is quite big, its percent of decolourization can reach 90～99%, and the COD clearance is 60～85%, and processing costs is 0.08～0.11 a yuan/waste water per ton.
Technology of the present invention is simple, and is with low cost, obvious processing effect, and can avoid the secondary pollution of mud and solve the diatomaceous problem that repeatedly recycles.
Description
The present invention relates to a kind of improved diatomite treatment water technology, can be used for the processing of various organic waste waters, be particularly suited for handling the paper waste that COD content is higher, colourity is dark, intractability is quite big.
Existing diatomite treatment water technology, be earlier diatomite original ore stone to be pulverized, adding acid activation then handles, in the middle of the waste water of activated soil prior modulated good PH of input after adding water to go residual acid, dispose, because of the lower emission standard that do not reach of waste water PH, also need earlier with milk of lime neutralizing treatment in addition, the mud after the processing dewaters after filtration and is separated.Such technological process exists following some shortcomings:
One. the activity of diatomite treatment agent is not high, and the treatment effect of waste water only is embodied on the decolouring, and the COD clearance is lower than 50%, has so just directly influenced treatment effect and range of application.
Two. the activation acid consumption is big, and activated soil per ton needs sulfuric acid (96%H
2SO
4) 500 kilograms, processing cost is corresponding have been improved.
Three. the residual sludge quantity that decolorization produces greatly and do not give comprehensive utilization has caused the secondary pollution of mud.
Based on above deficiency, at present both at home and abroad to the application of diatomite treatment water technology, the successful dyeing waste water that is only limited to COD content lower (800mg/l is following).
The objective of the invention is to provide a kind of can being applicable to handle various organic waste waters, especially be applicable to and handle that COD content is higher than 1000mg/l and with the treatment technology of the not good enough organic waste water of other treatment process effect.
One of major advantage of the present invention is to be embodied in the preparation of diatomite treatment agent, promptly before activation, will be crushed to 50～80 purpose diatomite original ore powder earlier and carry out the calcination processing, the effect of calcination is (600～800 ℃) at a certain temperature, the organism of filling between diatomite micropore and diatom test can not only be removed and make it to increase diatomaceous specific surface area is outside the adsorptive power, and can also make oxide compounds such as iron in the diatomite, aluminium, calcium dissociate out, make it in reactivation process, to be easy to be combined into the salt of solubility with acid.The reactive chemistry formula is as follows:
Or:
These salts through hydrolytic action, have formed the very strong polymkeric substance of coagulation in waste water.Moreover, so also just increased diatomaceous specific surface area again, thereby also just strengthened adsorptive power because the stripping of metal oxide has also increased diatomaceous micropore greatly.Therefore not only possessed adsorptive power and coagulation simultaneously through calcination activatory diatomite, and adsorptive power also greatly strengthens without the activated soil of calcination, so this diatomite treatment agent is naturally than the applied range of prior art, treatment effect is good, in fact, it is not limited only to the processing of dyeing waste water, when handling other various organic waste waters or even handle COD content up to the paper waste of 2000～3000mg/l, percent of decolourization also can be up to 90～99%, and it is 60～85% that COD goes the rate of falling.
Two of major advantage of the present invention is the problem of complex utilization that solved the reprocessing cycle use of diatomite mud or be processed into other products.Concrete grammar is after the diatomite mud behind the processing waste water is separated after filtration, to carry out calcination, activation again.
Mud (calcination 2-3 hour)/(600～800 ℃) roasting regeneration soil (sulfuric acid or hydrochloric acid activation 1 hour)/(80～100 ℃) calcination activating and regenerating soil
The reprocessing cycle of mud is used, and has both avoided secondary pollution, has reduced processing cost again, only reprocessing cycle is one, can reduce cost about 50%, and, can also create the net return of 0.062 yuan/waste water per ton if roasting regeneration soil is directly sold as lagging material or material of construction.
It is low that three of major advantage of the present invention is to activate acid consumption.Because the Decomposition of calcination, oxide compounds such as iron, aluminium, calcium are easy to combine with sour, activation transformation efficiency height, and acid consumption just reduces greatly, no matter is just system or regeneration, and activated soil per ton only needs sulfuric acid 70-200 kilogram, or hydrochloric acid 200-300 kilogram.
In addition, the present invention having removed that residual acid is gone in dehydration from and with in the milk of lime and two procedures on treatment process.As long as this is to keep residual acid amount at 1-5% because guaranteed activated soil, and at the waste water of different COD content, throw in corresponding an amount of diatomite treatment agent separately, wastewater treatment just can reach best PH separately.After treatment, this waste water can reach pollution exhaust criteria and need not earlier through neutralization.
The diatomite treatment agent injected volume of the waste water of different COD content sees the following form:
COD content (mg/l) diatomite treatment agent input amount (g/l)
Below 900 0.3～1.0
900～1500????1.0～1.5
(connecting table)
COD content (mg/l) diatomite treatment agent input amount (g/l)
1500～2000????1.5～2.0
2000～3000????2.0～3.0
In conjunction with the embodiments, of the present invention being implemented as follows:
Embodiment one:
Diatomite is handled Yunnan Yun Feng paper mill effluent
Embodiment two:
Diatomite is handled Pu'er tea shore, Dali paper plant waste water
Embodiment three:
Diatomite is handled Yunnan Artificial Fiber Plant waste water
Embodiment four:
Diatomite is handled the roasting glue factory in Simao, Yunnan waste water
(1). waste water quality
Wastewater source PH chrominance C OD remarks
（mg/l）
Embodiment one:
Yun Feng paper mill, Yunnan 6.80 2,000 1065 is washed and is floated middle-stage wastewater
(wood pulp, straw pulp)
(connecting table)
Wastewater source PH chrominance C OD remarks
（mg/l）
Embodiment two: black liquor floats with washing
Pu'er tea shore, Dali paper plant 8.05 2,500 1946 composite wastes
(straw pulp)
Embodiment three: alkaline waste water,
Yunnan Artificial Fiber Plant 7.98 3,500 3155 contains the zincic acid wastewater
Embodiment four: color: lixiviate waste water
The roasting glue factory in Simao, Yunnan 6.0 light red 228 water coolants
(2). diatomaceous concrete complete processing and processing waster water process see accompanying drawing 1,2 for details.
(3). the result table look-up
Embodiment producer diatomite is handled storehouse, back degree and is handled back COD remarks
Consumption (platinum cobalt colorimetry) (potassium dichromate process)
pH
(g/l) degree clearance clearance
%????mg/l????%
Yun Feng paper mill, Yunnan 1.5 58 40 98 301 71.74
Pu'er tea shore, Dali paper 2 6.10 80 96.8 783 60
Factory
Yunnan Artificial Fiber Plant zinc clearance reaches
3.0????6.0????100????97.14????892????71.73????94.83%
The roasting Jiao Chang in Simao, Yunnan is become by incarnadine
0.5????4.2????33????85.53
For colourless, transparent
Claims (9)
1, a kind of processing waste water technology, treatment agent is a diatomite, it is characterized in that:
A. the diatomite original ore powder will carry out the calcination processing earlier before activation;
B. the diatomite mud of handling behind the waste water obtains regeneration through calcination, activation treatment.
2, processing waste water technology according to claim 1 is characterized in that no matter being just system or regeneration, the time of calcination is 2～3 hours, calcination temperature is controlled at 600～800 ℃.
3, processing waste water technology according to claim 1 and 2 is characterized in that no matter being just system or regeneration, activated soil per ton needs sulfuric acid (96%H
2SO
4) 70～200 kilograms, it is 1～5% that activated soil keeps residual acid amount.
4, processing waste water technology according to claim 1 and 2 is characterized in that no matter being just system or regeneration, activated soil per ton needs hydrochloric acid (36%HCL) 200～300 kilograms, it is 1～5% that activated soil keeps residual acid amount.
5,, it is characterized in that the input amount of diatomite treatment agent is 0.3～1.0g/l when handling the raw wastewater of COD content below 900mg/l according to claim 3 or 4 described processing waste water technologies.
6,, it is characterized in that the input amount of diatomite treatment agent is 1.0～1.5g/l when processing COD content is the raw wastewater of 900～1500mg/l according to claim 3 or 4 described processing waste water technologies.
7,, it is characterized in that the input amount of diatomite treatment agent is 1.5～2.0g/l when processing COD content is the raw wastewater of 1500～2000mg/l according to claim 3 or 4 described processing waste water technologies
8,, it is characterized in that the input amount of diatomite treatment agent is 2.0～3.0g/l when processing COD content is the raw wastewater of 2000～3000mg/l according to claim 3 or 4 described processing waste water technologies.
9, according to any one described processing waste water technology in the claim 1-8 item, it is characterized in that can be used for the processing of various organic waste waters, be particularly useful for Processing Paper Wastewater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86106871A CN86106871B (en) | 1986-10-31 | 1986-10-31 | Treatment of organic waste water in the process of paper making with diatomaceous earth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86106871A CN86106871B (en) | 1986-10-31 | 1986-10-31 | Treatment of organic waste water in the process of paper making with diatomaceous earth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86106871A true CN86106871A (en) | 1988-03-16 |
| CN86106871B CN86106871B (en) | 1988-04-27 |
Family
ID=4803395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86106871A Expired CN86106871B (en) | 1986-10-31 | 1986-10-31 | Treatment of organic waste water in the process of paper making with diatomaceous earth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86106871B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453471C (en) * | 2007-04-24 | 2009-01-21 | 浙江三鼎科技有限公司 | Preparation method for organic polymer-diatomaceous soil composite coagulating agent |
| CN101746842B (en) * | 2008-12-12 | 2011-12-07 | 同济大学 | Coupling water supply purifying method of biological reinforced powder active carbon and diatomite |
| CN105481075A (en) * | 2016-02-02 | 2016-04-13 | 临江市大塬硅藻土新材料生态环保科技有限公司 | Diatomite papermaking wastewater treatment agent and preparation method |
| CN105622867A (en) * | 2016-03-31 | 2016-06-01 | 太仓市锦达印染有限公司 | Printing and dyeing wastewater treating agent as well as preparation method and application thereof |
| CN110734654A (en) * | 2018-07-19 | 2020-01-31 | 河北德龙环境工程股份有限公司 | antifouling coating material for water treatment membrane and preparation method and application thereof |
-
1986
- 1986-10-31 CN CN86106871A patent/CN86106871B/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453471C (en) * | 2007-04-24 | 2009-01-21 | 浙江三鼎科技有限公司 | Preparation method for organic polymer-diatomaceous soil composite coagulating agent |
| CN101746842B (en) * | 2008-12-12 | 2011-12-07 | 同济大学 | Coupling water supply purifying method of biological reinforced powder active carbon and diatomite |
| CN105481075A (en) * | 2016-02-02 | 2016-04-13 | 临江市大塬硅藻土新材料生态环保科技有限公司 | Diatomite papermaking wastewater treatment agent and preparation method |
| CN105622867A (en) * | 2016-03-31 | 2016-06-01 | 太仓市锦达印染有限公司 | Printing and dyeing wastewater treating agent as well as preparation method and application thereof |
| CN110734654A (en) * | 2018-07-19 | 2020-01-31 | 河北德龙环境工程股份有限公司 | antifouling coating material for water treatment membrane and preparation method and application thereof |
| CN110734654B (en) * | 2018-07-19 | 2021-06-15 | 河北德龙环境工程股份有限公司 | Antifouling coating material for water treatment membrane and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN86106871B (en) | 1988-04-27 |
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